CN211691716U - Large-span closed stockyard structure for multiple stackers and reclaimers - Google Patents

Abstract

The utility model discloses a super-span closed material yard structure for multiple stackers and reclaimers. The closed material yard is improved on the premise of not changing the stacker and reclaimer. The closed material yard has a firm structure and low overall cost; A plurality of truss columns are arranged horizontally and equally in the middle of the material yard. Each truss column is arranged vertically. The lower end of the truss column is fixed on the embedded base. The joists are connected, the upper chord is in a circular arc structure, the two ends of the upper chord are respectively fixed on both ends of the joist, both sides of the joist are provided with a main arch, and the main arch is also in a circular arc structure, and One end of the main arch frame is fixed on the joist, and the other end is fixed on the ground at the edge of the material yard after crossing the material yard. Both the top and the top of the joists are equipped with sun panels; the truss columns and the joists are both H-shaped steel bridge structures, and both have the same structural form.

Description

Large-span closed stockyard structure for multiple stackers and reclaimers

technical field

The utility model discloses a super-span closed material yard structure used for multiple stackers and reclaimers, belonging to the technical field of stackers and reclaimers.

Background technique

The distance between the mixing strip reclaimer of the existing mechanized material yard and the track bed of the bucket wheel reclaimer of the adjacent primary material yard is relatively close, and the space relationship is extremely tense. Due to insufficient clear distance of facilities, existing equipment needs to be modified or replaced to meet the needs of closed construction.

A total of four closed plans have been drawn up:

Scheme 1: Fully shorten the counterweight scheme of the bucket wheel reclaimer (five-span scheme); shorten the gyration radius of the counterweight side, greatly increase the counterweight, modify the upper main structure accordingly, increase the wheel set, use the track, and the column height of the closed greenhouse About 20m, the reconstruction period is about 30 days per unit. In this plan, the partial steel structure of the reclaimer is cut and reconstructed. There is no precedent, the counterweight is too short, the stability of the equipment is reduced, and there is a risk.

Scheme 2: do not shorten the bucket wheel counterweight + shorten the mixing and reclaimer scheme (five-span scheme); similar to scheme 1, set up a greenhouse column between the two material yards, and the column is a common column of adjacent greenhouses, and Together with the existing closed greenhouses, five continuous spans are formed, the gauge of the reclaimer is shortened, and the storage loss of the mixing yard is large.

Scheme 3: Partially shorten the bucket wheel counterweight + shorten the mixing and reclaimer scheme (five-span scheme); the reclaimer is retrofitted to shorten the gauge. The number of sets of equipment for renovation is the largest; the loss of reserves in the mixing yard is relatively large.

Option 4: B3/B4 is built together as a large span (four consecutive spans), the span of the shed is about 230m, and the structure is technically difficult. Since the span is very large, the ceiling is very high, but in terms of equipment operating clearance requirements, such a high headroom requirement is not necessary.

Utility model content

The utility model overcomes the shortcomings of the prior art, provides a super-span closed material yard structure for multiple stackers and reclaimers, and improves the closed material yard without changing the stacker and reclaimer. The closed stockyard has a firm structure and low overall cost.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is as follows: a super-large-span closed material yard structure for multiple stackers and reclaimers, including truss columns, joists, upper chord frames and main arches, a plurality of the trusses The columns are arranged at the same distance in the middle of the material yard, and each of the truss columns is vertically arranged, wherein the lower ends of the truss columns are fixed on the pre-embedded base, and the adjacent two truss columns are arranged vertically. The tops are connected by a joist, the upper chord is in a circular arc structure, and the center of the circle is set downward, the two ends of the upper chord are respectively fixed on the two ends of the joist, and the two sides of the joist are respectively fixed. Both are provided with a main arch frame, which is also in a circular arc structure, and one end of the main arch frame is fixed on the joist, and the other end of the main arch frame crosses the material yard longitudinally and is fixed in the material. On the ground at the edge of the field, the outer side of the main arch frame is provided with a membrane material, and the two sides of the joist and the corresponding sides of the upper chord frame and the top of the upper chord frame and the top of the joist are installed with sun panels;

The truss columns and joists are both H-shaped steel bridge structures, and both have the same structural form, including:

The main beam body and the lateral support, a plurality of the main beam bodies are longitudinally parallel and equidistantly arranged, and a plurality of lateral supports are arranged between the connected main beam bodies; the structure of the main beam body includes a main beam body, a connecting plate, a cover The main girder body and the connecting plate are both H-shaped steel, the two main girder bodies are arranged in parallel up and down on the vertical plane, and a plurality of the connecting plates are arranged equidistantly between the two main girder bodies , the width of the main beam body and the connecting plate are equal, and the main beam body and the connecting plate are distributed longitudinally, so that the horizontal plate of the main beam body and the connecting plate can match and correspond, and the main beam body and the connecting plate are in the connecting part. A plurality of through holes are correspondingly arranged on the horizontal plates, and the main beam body and the connecting plate are connected together by bolts. The cover plate is a plate-like structure including two specifications, and the cover plates of the two specifications are regular A plurality of through holes are distributed, and the cover plates of the two specifications are individually or combined on the upper and lower sides of the horizontal plate of the connecting part of the main beam body and the connecting plate, and the cover plates are distributed in a matrix on the main beam body and pass through. The bolts are fixed on the main beam body and the connecting plate, and the two cover plates cooperate with the sides of the main beam body and/or the connecting plate to form a groove-type connecting groove;

The horizontal support is an H-shaped steel structure, the length of the horizontal plate of the horizontal support is less than the length of the vertical plate, and the ends of the two horizontal plates of the horizontal support can be matched to the connection of the two horizontal plates of the main beam body. In the groove, at the same time, the horizontally supported vertical plates are correspondingly matched against the vertical plates of the main beam body, and the plurality of through holes provided on the horizontally supported horizontal plates correspond to the through holes on the cover plate, and are connected by bolts. Fix the lateral support on the cover;

The intersection of the vertical plate of the horizontal support and the vertical plate of the main beam body is matched with an angle steel, and two sides of the angle steel are provided with a plurality of through holes, and the through holes are matched with the vertical plate and the main beam of the horizontal support. The through holes provided on the vertical plate of the main body correspond to each other, and the angle steel, the vertical plate of the horizontal support and the vertical plate of the main beam body are fixed together by bolts, and the inner side of the two side plates of the angle steel are horizontally provided with connecting support plates, The connecting support plate and the angle steel are integrally formed, the connecting support plate is provided with a through hole, and a connecting rod is connected by bolts between the two connecting support plates at the diagonal position in the same horizontal plane.

A reinforcing plate is matched between the two horizontal plates of the main beam body, the reinforcing plate is vertically arranged with the vertical plate of the main beam body, and is welded and fixed with the vertical plate of the main beam body.

The upper and lower sides of the vertical plate end of the horizontal support are provided with steps, and the height of the steps is equal to the thickness of the cover plate, so that the steps and the horizontal plates of the horizontal support are matched with the card grooves to be inserted into the cover plate. superior.

The upper chord frame and the main arch frame are both truss-type structures, which are formed by bolts and/or welding of arc-shaped main rods, connecting struts and/or diagonal tie rods.

The joist, the upper string frame and the sun panel cooperate to form a chamber, and installing doors and windows at the corresponding positions of the sun panel can form a control room or a temporary rest room for directing the stacker-reclaimer to work.

Compared with the prior art, the utility model has the beneficial effects as follows: the utility model improves the closed material yard under the premise of not changing the stacker and reclaimer, the closed material yard has a firm structure, and the overall cost is low, and the utility model It can realize the full assembly and full bolt connection of the on-site steel bridge, so that the construction site can achieve zero welding or reduce welding; compared with the traditional structural form, the quality of the utility model is more reliable; the construction speed of the utility model is fast, and the previous The construction period of several years is reduced to several months; the faster construction speed can significantly reduce the cost of the enterprise and increase the social benefit of the enterprise.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic diagram of the movement of the stacker-reclaimer in the material yard in the utility model.

3 is a schematic structural diagram of a truss column or a joist in the utility model.

FIG. 4 is a schematic structural diagram of the main beam body in FIG. 3 .

FIG. 5 is a schematic diagram of the lateral support in FIG. 3 .

FIG. 6 is a schematic diagram of the connection between the support and the main beam in FIG. 3 .

In the figure: 1 is the truss column, 11 is the main beam body, 111 is the main beam body, 112 is the connecting plate, 113 is the cover plate, 114 is the connecting groove, 12 is the lateral support, 13 is the angle steel, 14 is the connecting support plate, 15 is the connecting rod, 16 is the reinforcing plate, 17 is the step, 2 is the joist, 3 is the upper string frame, and 4 is the main arch frame.

Detailed ways

As shown in Figure 1, Figure 3 to Figure 6, the utility model is used for the super-span closed material yard structure of multiple stackers and reclaimers, including a truss column 1, a joist 2, an upper chord frame 3 and a main arch frame 4. The truss columns 1 are arranged horizontally at the same distance in the middle of the material yard, and each of the truss columns 1 is arranged vertically, wherein the lower ends of the truss columns 1 are fixedly arranged on the embedded The tops of the two truss columns 1 are connected by a joist 2, the upper chord frame 3 is in an arc-shaped structure, and the center of the circle is set downward, and the two ends of the upper chord frame 3 are respectively fixed on the joists. At both ends of 2, both sides of the joist 2 are provided with a main arch 4, the main arch 4 is also in a circular arc structure, and one end of the main arch 4 is fixed on the joist 2, The other end of the main arch 4 crosses the material yard longitudinally and is fixed on the ground at the edge of the material yard. The outer side of the main arch 4 is provided with a membrane material, and the two sides of the joist 2 correspond to the two sides of the upper string frame 3 And the top of the upper string frame 3 and the top of the joist 2 are installed with sun panels; the front and rear sides of the main arch frame 4 can be blocked in the same way as in the prior art.

The truss column 1 and the joist 2 are both H-shaped steel bridge structures, and the two structural forms are the same, including:

The main beam body 11 and the lateral support 12, a plurality of the main beam bodies 11 are arranged in parallel and equidistantly in the longitudinal direction, and a plurality of lateral supports 12 are arranged between the connected main beam bodies 11; the structure of the main beam body 11 includes: The main beam body 111 , the connecting plate 112 and the cover plate 113 . The main beam body 111 and the connecting plate 112 are both H-shaped steel. The two main beam bodies 111 are arranged in parallel up and down on the vertical plane. The plates 112 are arranged equidistantly between the two main beam bodies 111 , the main beam bodies 111 and the connecting plates 112 have the same width, and the main beam bodies 111 and the connecting plates 112 are distributed longitudinally, so that the main beam bodies 111 Corresponding to the horizontal plate of the connecting plate 112, the main beam body 111 and the connecting plate 112 are respectively provided with a plurality of through holes on the horizontal plate of the connecting part, and the main beam body 111 and the connecting plate 112 are connected together by bolts , the cover plate 113 is a plate-like structure including two specifications, a plurality of through holes are regularly distributed on the cover plate 113 of the two specifications, and the cover plates 113 of the two specifications are arranged individually or in combination On the upper and lower sides of the horizontal plate of the connecting part of the main beam body 111 and the connecting plate 112, the cover plates 113 are distributed in a matrix on the main beam body 111 and fixed on the main beam body 111 and the connecting plate 112 by bolts. The cover plate 113 cooperates with the side surface of the main beam body 111 and/or the connecting plate 112 to form a groove-type connecting groove 114;

The horizontal support 12 is an H-shaped steel structure, the length of the horizontal plate of the horizontal support 12 is less than the length of the vertical plate, and the ends of the two horizontal plates of the horizontal support 12 can be matched and connected to the two horizontal plates of the main beam body 111. In the connecting groove 114 on the plate, at the same time, the vertical plate of the lateral support 12 is correspondingly matched against the vertical plate of the main beam body 111, and a plurality of through holes are provided on the horizontal plate of the lateral support 12 and the cover plate 113. The through-holes of 12 correspond to each other, and the lateral support 12 is fixed on the cover plate 113 by bolts;

The intersection of the vertical plate of the lateral support 12 and the vertical plate of the main girder body 111 is matched with an angle steel 13 , and two sides of the angle steel 13 are provided with a plurality of through holes, and the through holes and the horizontal support 12 . The vertical plate corresponds to the through hole provided on the vertical plate of the main beam body 111, and the angle steel 13 and the vertical plate of the lateral support 12 and the vertical plate of the main beam body 111 are fixed together by bolts. A connecting support plate 14 is horizontally arranged on the inner side of the side plate. The connecting support plate 14 and the angle steel 13 are integrally formed. A connecting rod 15 is connected between 14 by bolts.

A reinforcing plate 16 is matched between the two horizontal plates of the main beam body 111 . The reinforcing plate 16 is vertically arranged with the vertical plate of the main beam body 111 , and is welded and fixed to the vertical plate of the main beam body 111 . .

The upper and lower sides of the vertical plate end of the lateral support 12 are provided with steps 17, and the height of the steps 17 is equal to the thickness of the cover plate 113, so that the steps 17 are matched with the card slots formed by the horizontal plates of the lateral support 12. is plugged on the cover plate 113.

The upper chord frame 3 and the main arch frame 4 are both truss-type structures, which are formed by bolts and/or welding of arc-shaped main rods and connecting struts and/or diagonal tie rods, which are conventional truss structure technologies.

The joist 2, the upper string frame 3 and the sun panel cooperate to form a chamber, and installing doors and windows at the corresponding positions of the sun panel can form a control room or a temporary rest room for commanding the stacker-reclaimer to work.

The utility model relates to a construction method for a super-large-span closed material yard structure for multiple stackers and reclaimers, which is implemented according to the following steps:

The first step: select the appropriate position to embed the base along the transverse direction of the middle of the yard and the edge of the winding yard;

Step 2: Fix the assembled truss column 1 vertically in the middle of the stockyard; then fix the assembled joist 2 and the upper chord frame 3 together by welding and/or bolting;

The third step: hoist the fixed joist 2 and the upper chord frame 3 to the top of the two adjacent truss columns 1 in turn for fixing;

The fourth step: the assembled main arch 4 is hoisted and fixed on both sides of the joist 2 in turn, and one end of the main arch 4 is fixed on the joist 2, and the other end of the main arch 4 spans longitudinally. After the yard, it is fixed on the ground at the edge of the yard;

The fifth step: a membrane material is fixed on the outer side of the main arch 4, and a solar panel is installed on both sides of the joist 2 and the corresponding sides of the upper chord 3 and the top of the upper chord 3 and the top of the joist 2, and the installation is completed. .

The truss column 1 and the joist 2 are both H-shaped steel bridge structures, and the assembly methods of the two are the same, as follows:

The first step, the factory preparation stage;

Corresponding parts are produced according to the design size, and a plurality of reinforcing plates 16 are welded at equal intervals to one vertical plate of the main beam body 111 for standby use, and the connecting support plate 14 is welded to the inner side of the two side plates of the angle steel 13 for standby use; The upper and lower side processing steps 17 of the two ends of the vertical plate of the lateral support 12 are reserved for use;

The second step, factory pre-assembly;

A plurality of equally spaced connecting plates 112 are fixed between the two main beam bodies 111 by bolts, and cover plates 113 are fixed by bolts on both sides of the horizontal plate of the main beam body 111 where the connecting plates 112 are located. , forming the main beam body 11;

The third step, the actual installation site is formally combined;

a. Arrange a plurality of main beam bodies 11 in parallel, and set up a plurality of lateral supports 12 between two adjacent main beam bodies 11. Both ends of each lateral support 12 are bolted to the corresponding cover plate 113 connected;

b. Set the angle steel 13 at the intersection of the lateral support 12 and the main beam body 11, and fix the angle steel 13 on the lateral support 12 and the main beam body 11 by bolting;

c. In the frame enclosed by the lateral support 12 and the main beam body 11, use the connecting rod 15 to connect the two angle steels 13 on the diagonal with bolts.

Both ends of the connecting rod 15 are provided with connecting through holes corresponding to the connecting support plate 14 , and in each frame enclosed by the lateral support 12 and the main beam body 11 , a connecting rod 15 is fixed on the connecting support plate 14 . On the upper side, another connecting rod 15 is fixed on the lower side of the corresponding diagonal connection support plate 14 .

The connecting rod 15 is an angle steel structure.

The working process of the stacker and reclaimer: As shown in Figure 2, the cantilever bucket wheel stacker and reclaimer adopts the operation mode of intermittent walking + intermittent rotation. The stacker and reclaimer starts working from the edge of the material yard, starting at point A as shown in the figure, and moves along the walking track from the ① axis to the ⑤ axis direction. The mechanism rotates in the direction of arrow 1 in the figure. The stacker and reclaimer can rotate the stacker and reclaimer at will before moving to point B. When moving to point B, the pulse meter recorder records that the distance traveled reaches the preset number of meters. At this time, the walking mechanism of the stacker-reclaimer stops moving forward, and the upper slewing mechanism rotates along the direction of arrow 2 to the position shown in the figure, and then the walking mechanism starts to move forward. When it moves to the C position, the upper slewing mechanism can Rotate in the direction of arrows 3 and 4 as shown in the figure and can also rotate in the opposite direction.

The principle of the closed transformation of the material yard involved in the utility model is that on the premise that the function of the material yard remains unchanged, the online production will not be transformed. The closure of the mechanized material yard includes the closure of 8 material strips and the transformation of stacking equipment. The basic scheme of closure is that the upper part is steel structure, the lower part is concrete short column, the short column of the closed workshop adopts pile foundation, and the roof is closed using membrane material. The utility model also relates to the transformation of power distribution, lighting, lightning protection facilities and telecommunication systems. And roof rainwater collection and drainage system, rainwater collection and pretreatment facilities and supporting gates, pump stations, water pumps, etc. There are also the provision of fire-fighting equipment (with fire extinguishers), as well as the demolition and restoration of existing buildings (structures).

The present utility model will be further elaborated below in conjunction with specific embodiments.

The H-shaped steel bridge structure involved in the utility model comprises a longitudinal honeycomb-type multi-layer H-shaped steel main girder, a solid-web H-shaped transverse support, and a solid-web angle steel diagonal support, wherein the longitudinal honeycomb-type multi-layer H-shaped steel main girder is The new combination form, that is, the longitudinal honeycomb-type multi-layer H-beam main beam includes the uppermost and lowermost continuous H-beams and the middle layer or layers of H-beams arranged at certain intervals according to certain rules or stress characteristics; the most The upper and lowermost H-beams use the same specifications; the honeycomb-like multi-layer H-beam main beams are arranged at certain intervals to form the longitudinal main stress frame; the connection between the H-beams adopts full bolt connection to meet the requirements of assembly.

The solid-web type H-shaped lateral support adopts the web extension to the main girder web plate for plug-in connection, and the webs are connected by angle steel bolts; the flanges are connected by cover plates. to meet the space requirements of the cover;

Among them, the solid belly type H-shaped transverse support has the same specifications as the longitudinal structure it is connected to, that is, the transverse support connected to the uppermost or lowermost layer adopts the same specification, and the transverse support connected to the middle layer adopts the same specification as the middle layer.

Weld the cross plate directly on the angle steel at the factory to connect the diagonal bracing.

The above connection method and the addition of stiffeners at the corresponding positions of the main beams are used to meet the rigidity requirements of lateral support.

The lateral support is set at the center of the H-beam in the middle layer to meet the structural stability and aesthetic function.

The utility model relates to an assembling method of an H-shaped steel bridge structure. First, a honeycomb-like multi-layer H-shaped steel main beam is assembled and installed, and flanges are connected with bolts; Stress-bearing frame; then place the solid-web H-beam lateral support at the designated position to connect the cover plate; then connect the angle steel to the web; similarly, connect the next main beam and the lateral support; finally, connect the diagonal support To the angle steel, all the above connections are made of high-strength bolts.

The utility model is constructed in the following manner:

1. After the materials enter the site, start to assemble the truss columns in the middle of the span. First, the incoming H-beams are spliced with equal-strength connecting plates, and spliced into four identical steel columns. After the splicing is completed, the two H steel columns are respectively connected. The H steel beams between the two rows of steel frames are then connected with the same steel beams to form a columnar structure. Then connect the diagonal braces (round tubes) between the two diagonal H steels. Tighten all the high-strength bolts.

2. After the assembly is completed, use a crane to hoist the truss column. The lifting point is at the top of the column. Before hoisting, carry out a trial hoisting. After the structure is stable, start hoisting. Hoist it until the bottom of the H-steel end column foot plate hole and the embedded bolt are completely on top , and then slowly drop to the bottom, add a wedge iron to level the nut, and finally screw the nut, and finally carry out the secondary pouring.

3. Fix another truss column with a distance of 50 meters to the foundation in the same way.

4. After the two truss columns are installed, start the assembly of the joists. First assemble the lower chord plane structure, respectively splicing the multi-section H-beams into two long chords with equal strength with flanges, connect the two chords with vertical rods (H-beams) according to the drawing, and connect the upper inclined rods (H-beams) between the vertical rods. , and tighten all the bolts.

5. Assemble the upper chord, respectively splicing the multi-section circular tubes into two arc-shaped chords according to the drawings with equal strength of flanges, erect the two chords with a crane, level the two chords with a level, and measure the two chords with a steel ruler Whether the chord length and arch height of the rod are consistent with the drawing size or the deviation is within the allowable range of the specification. Then the round tube is assembled, and the round tube assembly sequence should be symmetrically assembled from the middle to the two sides. Connect the two chords into a grid-like structure. Use a level to level the winding structure when finished.

6. After the upper chord structure is installed, place the lower chord structure flat on the ground, level it with a level, then use a crane to hoist the upper chord structure to just above the lower chord structure, slowly drop it until it completely falls on the lower chord structure, and use high-strength bolts for initial tightening. Then, according to the drawings, the upper and lower chord structures are connected with circular tubes. The circular tubes are connected by high-strength bolts and connecting plates, and assembled into a stable truss joist structure.

7. After the truss joists are assembled, go to the next step and hoist the joists to the two truss columns. The specific steps are as follows: use two cranes of the same model, the lifting point is on the chord of the joist (the specific calculation is known), carry out trial lifting before lifting, and start lifting after the structure of the joist is stable, and the two cranes cooperate with each other to lift the joist to At the top of the truss column, use high-strength bolts to fix it with the truss column and evacuate the crane.

8. Assemble the stock yard as a unit with a distance of 50 meters in the length direction to form the above-mentioned joist structure.

9. After the truss joist structure is completed, start the installation of the main arch;

(1) Arrange the main steel beams neatly on the ground in the order of the drawings; use a level to level the tires. Place the steel beam on the ground tire, and after determining the approximate geometric size of the position, check whether the friction surface of the equal-strength splicing plate and the splicing position of the steel beam meets the installation requirements, and whether the high-strength bolts meet the specifications;

(2) Connect each section of beam with equal-strength connecting plate, and initially screw all bolts.

(3) Use a level to level the half-span beam, and use a steel ruler to measure whether the chord length and arch height of the assembled unit composed of the half-span beam are consistent with the size of the drawing or the deviation is within the allowable range of the specification;

(4) After the half-span beam is leveled and the dimensions are measured in good condition, all the bolts are finally screwed, and the final screwing degree is carried out according to the specifications and the company's technical requirements;

(5) Lift the assembled two half-span beams with cranes of the same tonnage, and connect rigid tie rods and horizontal supports to form a stable hoisting unit. The bolted connection of the secondary structure should be initially screwed first and then finally screwed according to the specifications and the company's technical requirements. The final screwing degree is carried out according to the specifications and the company's technical requirements; use temporary supports to fix the hoisting unit. The assembly sequence of the arched steel structure should be symmetrically assembled from the middle to the two sides. During the assembly process of the arched steel structure, the lateral stabilizing members should be connected in time, or temporary construction measures such as cables and wind ropes should be adopted to ensure the stability of the hoisting unit. The installation of the arched steel structure is a construction process from components, mechanisms, and unstable structures to stable structures. Therefore, during the installation process, great attention must be paid to the stability of components and hoisting units. Temporary supports and cable wind ropes should be set up. , temporary reinforcement and other measures to ensure the stability of the hoisting unit.

10. Hoisting;

(1) Carry out a trial hoisting before hoisting, select a good hoisting point, and ensure the unity of the position of each joint to facilitate the balance of the steel beam. Two cable wind ropes are tied at both ends of the beam to prevent the beam from shaking during the lifting process. If there is shaking, it can be adjusted by applying force to the ropes at both ends. After the preparations are ready, start the test lift. Stop the hoisting when the component is about 1m from the ground, and hoist it statically for 5 minutes to check whether each connection point is safe and whether the arch beam is balanced. If the lashing method is used for hoisting, if it is found that the position of the lashing point is incorrect, the arch beam will be hoisted back to the ground splicing platform, and the arch beam will be fixed with a brace to prevent it from tipping. Binding point, pay attention to the moving position should not be too large, repeat the above process and then carry out trial lifting until the arch beam is balanced in the air. Note down the exact position of the two binding points at this time, and then hoist the next arch beam according to this position;

(2) Raise the bottom of the steel beam and the column and the vault by about one meter at the same time. After the steel arch is raised to become a stable hoisting unit, raise the column foot of the steel arch to the top of the column; the flange continues to be raised to the theoretical level. high;

(3) The vault does not move, slowly raise the column foot part so that the anchor bolt hole of the column foot plate is aligned with the pre-embedded anchor bolt; then use the column foot nut to initially level the arch;

(4) The crane uses the same method to hoist the corresponding hoisting unit in place. This hoisting unit needs to fix the column foot plate on the lower chord structure of the truss joist, and perform the preliminary leveling of the anchor bolt on the steel arch. Its flange position is higher than the flange position of the opposite hoisting unit;

(5) The vault cranes of the two hoisting units are matched with each other and the flanges are closed in place to perform artificial high-altitude operations; the deformation of the components should be controlled during the hoisting process, and special attention should be paid to not cause permanent deformation;

(6) Climbing workers wear safety belts and tool bags, hang up the self-locking device, use a crane to lift the hoist and carry people and tools to the position of the flange plate of the vault, lock the bolts, and fasten the bolts. Climbing workers use the self-locking device to ensure their own safety when working at high altitudes, and only when they reach the ground can they remove the safety buckle on the self-locking device. When the vault is docked, the worker must bring the tool kit, put the tools and screws in the tool kit, and tie the safety line to the lifeline. After the bolts are finally screwed, the joints are marked with paint.

11. Membrane installation;

(1) Before opening the package on site, the exact installation position of the membrane unit should be determined. When the membrane unit is unfolded, necessary measures should be taken to prevent the membrane material from being polluted or damaged. Temporary splints can be used when unfolding and hoisting the membrane unit, but during the installation process, tearing of the connection between the membrane unit and the temporary splint should be avoided. Clean up the site, and protect the objects that may damage the membrane material. Before installation, the support structure and steel members should be re-tested to confirm that the membrane installation requirements are met;

(2) Pay attention to the firmness of the clamp when pulling the membrane material with the hoist, and observe closely the whole process of dragging to prevent rotting and scratching. The transverse stretch rate of the film should be guaranteed to be 3.3%. Membrane units should be installed continuously in place. When it cannot be installed in place continuously, reliable temporary fixing measures should be taken. When the wind power reaches level 4 or the temperature is lower than 4°C, it is not suitable to install the membrane unit; when the wind force reaches level 5 and above, it is strictly forbidden to install the membrane unit. The aluminum strip should be installed in a straight line, the spacing of the self-tapping screws in the span direction should be 70mm, the position of the self-tapping screws should be in the middle of the aluminum strip, forming a straight line (not a curve). It should be consistent with the edge of the aluminum strip (that is, a straight line, not a curve). After the membrane structure is installed, the inner and outer surfaces of the membrane should be cleaned;

(3) Install solar panels at the top chord vaults of truss joists, and punch aluminum strips before self-tapping.

12. Gable board installation;

(1) Analysis of the re-measurement data of the gable components, check whether the size of the gable components is correct, and avoid installation after lifting;

(2) Use a single-point infrared measuring instrument to release the axis, determine the position of the horizontal beam, make the position of the two sides of the horizontal beam on the pre-embedded plate of the gable foundation, and weld the limit plate. Note that the outside of the horizontal beam is flush with the air filter connecting plate on the H-beam;

(3) When lifting the wind-resistant beam, one crane is located on the outside of the axis, the lifting point is located below the top of the wind-resistant beam, and the other crane hook is used to hang people with a gondola, connecting the wind-resistant beam and the steel arch (bolt connection), and the top After fixing, the ground construction personnel need to connect the bottom end of the wind-resistant beam to the horizontal beam (bolt connection) on the scaffolding platform, and pay special attention to measuring the verticality of the wind-resistant beam in both directions;

(4) The dust-proof net is installed using a crane and hanging basket, and is installed from the bottom to the top. Install the middle first and then complete the left and right panels. To determine the size, it is necessary to use a blue outer line or a transparent horizontal tube. The size control mainly considers the vertical line and the horizontal line, and also considers the seam of the ribbon. The two dust filters in the horizontal direction need to calibrate the horizontal error once;

(5) The overlap of the dust-proof net should be regular, and there should be no chaotic overlap. The left and right overlaps are less than 30 mm, and the upper and lower overlaps should not exceed 5 mm. For sheets exceeding 4.5 meters, spacers should be added at 2.25 meters. Sheets for special spacers, 8mm bolts. Before tapping the self-tapping, the aluminum strip should be punched first. The self-tapping should be horizontal and vertical, and a cap should be completed immediately. Check the contamination of the dust filter and deal with it immediately. Use an angle grinder to cut off the excess part of the dust net at the steel arch, and use white paint for repainting on the cut section;

(6) Screw the top dust-proof net at intervals of 50mm along the direction of the flat iron. The upper and lower rows of the flat iron at the steel arch should be fixed with self-tapping screws to ensure that there are self-tapping screws at intervals of 50mm.

13. The side of the truss joist can also be installed with a microporous dust filter. The installation method is the same as above.

The basic principle and main features of the present invention and the advantages of the present invention are shown and described above, and the standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be made according to the description in the description and the drawings. Customized, the specific connection method of each part adopts the conventional methods such as mature bolts, rivets and welding in the existing technology, and the machinery, parts and equipment adopt the existing technology, conventional models, membrane materials and solar panels, plus control The circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the art, it is also possible to do so without departing from the purpose of the present utility model. make various changes.

Claims (5)

1. The ultra-large-span closed stock ground structure for the multiple material piling and taking machines is characterized by comprising truss columns (1), joists (2), upper trusses (3) and main arches (4), wherein the truss columns (1) are transversely and equidistantly arranged in the middle of the stock ground, each truss column (1) is vertically arranged, the lower ends of the truss columns (1) are fixedly arranged on a pre-embedded base, the tops of two adjacent truss columns (1) are connected through one joist (2), the upper chords (3) are of circular arc structures, the centers of circles of the circular arc structures are downwards arranged, the two ends of each upper chord (3) are respectively and fixedly arranged at the two ends of each joist (2), the main arches (4) are arranged on the two sides of each joist (2), the main arches (4) are also of circular arc structures, and one ends of the main arches (4) are fixed on the joists (2), the other end of the main arch frame (4) longitudinally crosses over the stock ground and then is fixed on the ground at the edge of the stock ground, a membrane material is arranged on the outer side of the main arch frame (4), sunlight plates are arranged on two sides of the joist (2) corresponding to the two sides of the upper chord frame (3) and on the top of the upper chord frame (3) and the top of the joist (2);

truss column (1) and joist (2) are H shaped steel bridge construction, and the two structural style is the same, all includes:

the transverse supporting device comprises main beam bodies (11) and transverse supports (12), wherein the main beam bodies (11) are longitudinally parallel and equidistantly arranged, and the transverse supports (12) are arranged between the main beam bodies (11) which are connected; the structure of the main beam body (11) comprises a main beam body (111), a connecting plate (112) and a cover plate (113), wherein the main beam body (111) and the connecting plate (112) are H-shaped steel, the two main beam bodies (111) are arranged in parallel on a vertical plane, the connecting plates (112) are arranged between the two main beam bodies (111) at equal intervals, the widths of the main beam body (111) and the connecting plate (112) are equal, the main beam body (111) and the connecting plate (112) are longitudinally distributed, so that horizontal plates of the main beam body (111) and the connecting plate (112) can be matched and correspond to each other, a plurality of through holes are correspondingly arranged on the horizontal plate of the connecting part of the main beam body (111) and the connecting plate (112), the main beam body (111) and the connecting plate (112) are connected together through bolts, and the cover plate (113) is of a plate-shaped structure with two specifications, the cover plates (113) of the two specifications are regularly distributed and provided with a plurality of through holes, the cover plates (113) of the two specifications are arranged on the upper side and the lower side of a horizontal plate of a connecting part of the main beam body (111) and the connecting plate (112) singly or in combination, the cover plates (113) are distributed on the main beam body (111) in a matrix manner and are fixed on the main beam body (111) and the connecting plate (112) through bolts, and the two cover plates (113) are matched with the side surfaces of the main beam body (111) and/or the connecting plate (112) to form a groove-shaped connecting groove (114);

the transverse support (12) is of an H-shaped steel structure, the length of a horizontal plate of the transverse support (12) is smaller than that of a vertical plate, the end parts of the two horizontal plates of the transverse support (12) can be inserted into connecting grooves (114) on the two horizontal plates of the main beam body (111) in a matching mode, meanwhile, the vertical plate of the transverse support (12) is correspondingly supported against the vertical plate of the main beam body (111), a plurality of through holes formed in the horizontal plate of the transverse support (12) correspond to through holes formed in the cover plate (113), and the transverse support (12) is fixed on the cover plate (113) through bolts;

the cross department matching of the vertical plate of horizontal support (12) and the vertical plate of girder body (111) is provided with angle steel (13), be provided with a plurality of through-holes on two sides of angle steel (13), and the through-hole that sets up on the vertical plate of this through-hole and the vertical plate of horizontal support (12) and girder body (111) is corresponding to fix angle steel (13) and the vertical plate of horizontal support (12) and girder body (111) together through the bolt, the inboard level of two curb plates of angle steel (13) is provided with joint support board (14), joint support board (14) and angle steel (13) integrated into one piece, be provided with the through-hole on joint support board (14), and be in and have connecting rod (15) through bolted connection between two joint support board (14) of diagonal position in the same horizontal plane.

2. The ultra-large span closed stock ground structure for the plurality of material piling and taking machines according to claim 1, characterized in that a reinforcing plate (16) is arranged between two horizontal plates of the main beam body (111) in a matching manner, and the reinforcing plate (16) is vertically arranged with a vertical plate of the main beam body (111) and is welded and fixed with the vertical plate of the main beam body (111).

3. The ultra-large span closed stock ground structure for the plurality of stacker-reclaimers according to claim 1, characterized in that steps (17) are arranged on the upper and lower sides of the vertical plate end of the transverse support (12), and the height of the steps (17) is equal to the thickness of the cover plate (113), so that the steps (17) are matched with the clamping grooves formed by the horizontal plates of the transverse support (12) to be inserted into the cover plate (113).

4. The ultra-large span closed stock ground structure for the multiple material piling and taking machines according to claim 1, characterized in that the upper chord (3) and the main arch (4) are both truss-like structures and are formed by an arc main rod and a connecting strut and/or a diagonal member through bolts and/or welding.

5. The ultra-large span closed stock ground structure for the multiple material piling and taking machines according to claim 1, wherein a cavity is formed by matching the joist (2), the upper chord frame (3) and the sunlight plate, and a control room or a temporary rest room for commanding the material piling and taking machines can be formed by installing doors and windows at the corresponding positions of the sunlight plate.

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