Truss structure of prefabricated laminated slab

Abstract

The utility model discloses a truss structure of a prefabricated laminated slab, which belongs to the technical field of prefabricated laminated slabs, and comprises a plurality of laminated slab bottom ribs which are distributed in a crossed manner, and a plurality of truss components which are arranged on the laminated slab bottom ribs; the truss component comprises an upper chord rib and a plurality of triangular ring ribs, the triangular ring ribs are evenly arranged on the upper chord rib, and the triangular ring ribs are connected with the laminated slab bottom ribs in a binding mode; a positioning member; compared with a traditional truss, the truss component in the scheme is improved and optimized, the triangular ring ribs are used for replacing traditional belly inclined ribs, the laminated slab bottom ribs are used for replacing traditional lower chord ribs, the structure is simple, the using amount of steel is greatly reduced, it can also be ensured that the mechanical property and the using performance of the prefabricated laminated slab are not affected, and the production cost is reduced. In the large-scale production and application process of the prefabricated laminated slab, the production cost can be effectively reduced, material waste can be reduced, the weight of the prefabricated laminated slab can be reduced, time and labor are saved, and generalizability and applicability are high.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated composite panels, and more specifically, to a truss structure of a prefabricated composite panel. Background Art

[0002] At present, with the gradual development of prefabricated buildings, prefabricated composite panels, as a basic component in the field of prefabricated buildings, combine the advantages of prefabrication technology and cast-in-place concrete. They have simple structures and are easy to produce. Therefore, they are widely used in various building formats such as residential, commercial, school and hospital. Prefabricated composite panels are a part of the floor slab prefabricated in the factory. This part usually includes the lower concrete slab and embedded steel bars. These prefabricated panels are then placed in the predetermined position at the construction site, and a layer of concrete is poured on them to form an integral floor slab.

[0003] The truss steel bars added to the prefabricated composite slab mainly play a major role in the early stage of the composite slab, mainly to enhance the rigidity and shear resistance of the lower concrete slab, and also serve as lifting hooks. After the composite slab is cast as a whole, the effect of the truss steel bars is not obvious. However, the traditional composite slab truss structure is complex and the steel consumption is high. In the large-scale production and application of prefabricated composite slabs, the construction cost of the project will be increased, and the weight of the composite slab itself will be increased, resulting in a waste of material resources; at the same time, it will consume more labor and have low construction efficiency.

[0004] Therefore, it is necessary to provide a truss structure of a prefabricated composite panel to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a truss structure of a prefabricated composite plate to solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A truss structure of a prefabricated composite plate, comprising a plurality of cross-distributed composite plate bottom reinforcements, and further comprising:

[0008] A truss component is arranged on the bottom reinforcement of the composite plate and is provided in plurality;

[0009] The truss member includes an upper chord rib and a plurality of triangular ring ribs, wherein the plurality of triangular ring ribs are evenly arranged on the upper chord rib, and the triangular ring ribs are tied and connected to the bottom ribs of the composite plate;

[0010] A positioning component is used to limit the installation of the triangular ring rib on the upper chord rib.

[0011] Furthermore, the positioning component includes:

[0012] A sleeve plate, wherein an adjusting plate is provided on the sleeve plate;

[0013] A clamping block is arranged at the bottom of the sleeve plate and the adjusting plate, and the clamping block is matched with the triangular annular rib.

[0014] Furthermore, a sliding cavity is provided inside the sleeve plate, the adjustment plate is slidably arranged in the sliding cavity, a plurality of fixing holes are opened on the adjustment plate, and fixing bolts matching the fixing holes are threadedly connected on the sleeve plate.

[0015] Furthermore, an inner hidden cavity is opened inside the adjustment plate, a transfer block is slidably provided in the inner hidden cavity, an elastic member is provided between the transfer block and the inner wall of the inner hidden cavity, and a side clamping plate adapted to the triangular ring rib is provided at the outer end of the transfer block.

[0016] Furthermore, a movable groove and a connecting channel are provided in the adjustment plate, and the movable groove and the inner hidden cavity are both connected to the connecting channel. A push rod is slidably provided on the inner wall of the movable groove, and a traction rope is provided at the inner end of the adapter block, and the other end of the traction rope passes through the connecting channel and is connected to the push rod.

[0017] Furthermore, a slide groove is provided on the inner side wall of the movable groove, a sliding block is slidably provided on the inner wall of the slide groove, and one end of the sliding block is connected to the push rod.

[0018] Furthermore, a plurality of rollers are rotatably provided on the sliding block, and the rollers are in rolling contact with the inner wall of the sliding groove.

[0019] Furthermore, a bracket is provided on the inner wall of the connecting channel, and a steering wheel adapted to the traction rope is rotatably provided on the bracket.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The truss components in this scheme are improved and optimized compared with traditional trusses. Triangular ring reinforcement is used instead of traditional belly diagonal reinforcement, and the bottom reinforcement of the composite plate is used instead of the traditional lower chord reinforcement. The structure is simple and the amount of steel used is greatly reduced. It can also ensure that the mechanical properties and performance of the prefabricated composite plate are not affected. In the large-scale production and application of prefabricated composite plates, it can effectively reduce production costs and reduce material resource waste. It can also reduce the weight of the prefabricated composite plates. In addition, the production of truss components can save a lot of labor, greatly improve construction efficiency, and has strong scalability and applicability.

[0022] 2. In this scheme, the triangular ring reinforcement is installed and limited by this positioning component, so that the triangular ring reinforcement on the upper chord reinforcement can be evenly spaced, avoiding the current need to manually use tape measures or other measuring equipment to determine the distance between the two triangular ring reinforcements before welding, saving a lot of time and energy, and significantly improving construction efficiency; and the positioning of the triangular ring reinforcement by the positioning component can effectively reduce the occurrence of errors, preventing uneven installation of the triangular ring reinforcement from affecting the mechanical properties and performance of the subsequent prefabricated composite slabs.

[0023] 3. In this solution, the distance that the adjustment plate extends out of the sleeve 1 can be adjusted, that is, the distance between the sleeve plate and the clamping block on the adjustment plate can be adjusted, so that the moving distance of the adjustment plate and the clamping block thereon can be adjusted according to the required distance between adjacent triangular ring ribs. It has strong flexibility and can meet the needs of different situations.

[0024] 4. In this solution, when the clamping block on the adjustment plate is clamped at the bottom of the triangular ring reinforcement, the side of the triangular ring reinforcement is clamped by the side clamping plate, which can better restrict the triangular ring reinforcement and greatly prevent the triangular ring reinforcement from shaking during welding, further improve the installation effect of the triangular ring reinforcement, and improve the performance of the truss components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the prefabricated composite board of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal truss components and the bottom reinforcement structure of the prefabricated composite panel of the utility model;

[0027] Figure 3 It is a schematic diagram of the local structure of the truss component of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the positioning component of the utility model in the use state when installing triangular ring ribs;

[0029] Figure 5 for Figure 4 Schematic diagram of the bottom perspective structure;

[0030] Figure 6 This is a partial cross-sectional structural diagram of the adjustment plate of the utility model;

[0031] Figure 7 for Figure 6 The enlarged structural diagram at A in the middle;

[0032] Figure 8 for Figure 6 Enlarged structural diagram at B in the middle.

[0033] Description of the numbers in the figure:

[0034] 1. Bottom reinforcement of composite plate; 2. Truss component; 21. Upper chord reinforcement; 22. Triangular ring reinforcement; 3. Positioning component; 31. Sleeve plate; 32. Adjustment plate; 33. Block; 4. Fixing hole; 5. Fixing bolt; 6. Inner hidden cavity; 7. Adapter block; 8. Elastic part; 9. Side clamp; 10. Moving groove; 11. Connecting channel; 12. Push rod; 13. Traction rope; 14. Slide groove; 15. Slider; 16. Roller; 17. Bracket; 18. Steering wheel; 19. Slot. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0038] See also Figure 1-8 A truss structure of a prefabricated composite plate comprises a plurality of cross-distributed composite plate bottom bars 1, and also comprises: a truss component 2, which is arranged on the composite plate bottom bar 1 and is provided with a plurality of; the truss component 2 comprises an upper chord bar 21 and a plurality of triangular ring bars 22, the plurality of triangular ring bars 22 are evenly arranged on the upper chord bar 21, and the triangular ring bars 22 are tied and connected with the composite plate bottom bar 1; a positioning component 3, which is used to install and limit the triangular ring bars 22 on the upper chord bar 21.

[0039] The main construction steps of prefabricated composite panels are:

[0040] Steel is formed by bending and welding using bending and forming equipment to achieve mass production of triangular ring reinforcement 22; the triangular ring reinforcement 22 is evenly arranged on the upper chord reinforcement 21 at equal intervals, and the triangular ring reinforcement 22 is welded to the upper chord reinforcement 21, so that a web steel truss, that is, a truss component 2, is formed by the triangular ring reinforcement 22 and the upper chord reinforcement 21; the truss component 2 is placed inside the steel cage at a certain interval, the position of the composite plate bottom reinforcement 1 and the truss component 2 are matched and arranged, and the composite plate bottom reinforcement 1 is staggered horizontally and vertically, so that the triangular ring reinforcement 22 and the composite plate bottom reinforcement 1 at the corresponding position are tied and connected to form a whole into the mold, wherein the composite plate bottom reinforcement 1 replaces the lower chord reinforcement of the traditional steel truss; then the concrete is poured and vibrated evenly, and the production of the prefabricated composite plate is completed after demolding and curing.

[0041] In summary, the truss component 2 in the present application is improved and optimized compared with the traditional truss. The triangular ring reinforcement 22 is used instead of the traditional abdominal diagonal reinforcement, and the composite plate bottom reinforcement 1 is used instead of the traditional lower chord reinforcement. The structure is simple and the amount of steel used is greatly reduced. It can also ensure that the mechanical properties and performance of the prefabricated composite plate are not affected. In the large-scale production and application process of prefabricated composite plates, it can effectively reduce production costs and reduce material resource waste. It can also reduce the weight of the prefabricated composite plates themselves. In addition, the production of the truss component 2 can save a lot of labor, greatly improve construction efficiency, and has strong scalability and applicability.

[0042] When the triangular ring ribs 22 are welded to the upper chord ribs 21, the upper chord ribs 21 are inserted into the plurality of triangular ring ribs 22. After the first triangular ring rib 22 is welded to the upper chord ribs 21, one side of the positioning component 3 is then mounted on the welded triangular ring rib 22, and the other side of the positioning component 3 is then clamped on the adjacent triangular ring rib 22, that is, the triangular ring ribs 22 are installed and limited by the positioning component 3, and then the adjacent triangular ring ribs 22 can be welded and fixed, and this cycle is repeated to achieve that the distance between the two triangular ring ribs 22 is equal, and the triangular ring ribs 22 on the upper chord ribs 21 are evenly spaced, thereby avoiding the need to manually use a tape measure or other measuring equipment to determine the two triangular ring ribs. The method of welding after determining the distance between the triangular ring reinforcements 22 has simple and convenient operation steps, saves a lot of time and energy, and significantly improves construction efficiency; the error when the staff determines the position of the triangular ring reinforcement 22 by manually pulling the tape measure is large, and in many cases the staff only performs welding and installation by visually estimating the distance, which will eventually lead to unevenness between the multiple triangular ring reinforcements 22. The positioning of the triangular ring reinforcement 22 by the positioning component 3 can effectively reduce the occurrence of errors, prevent the uneven installation of the triangular ring reinforcement 22 from affecting the mechanical properties and use performance of the subsequent prefabricated composite panels; at the same time, it greatly avoids the current situation where the staff need to hold the triangular ring reinforcement 22 by hand for welding, reduces the occurrence of skewness, etc., and is highly practical.

[0043] In this embodiment, preferably, please refer to Figure 4-5 The positioning component 3 includes: a sleeve plate 31, on which an adjustment plate 32 is provided; a clamping block 33, which is provided at the bottom of the sleeve plate 31 and the adjustment plate 32, and the clamping block 33 is adapted to the triangular ring rib 22. When in use, the sleeve plate 31 and the adjustment plate 32 are passed through two adjacent triangular ring ribs 22, and then the clamping block 33 on the sleeve plate 31 is clamped on the welded triangular ring rib 22, and the clamping block 33 on the adjustment plate 32 is clamped on another triangular ring rib 22 to be welded, so that the position of the unwelded triangular ring rib 22 can be limited, and then the limited triangular ring rib 22 can be welded and installed. Repeatedly welding and installing the triangular ring rib 22 in this way can effectively ensure the equidistant installation effect of multiple triangular ring ribs 22, and improve the subsequent use performance; and through the limitation of the positioning component 3, there is no need for the staff to weld the triangular ring rib 22 by hand, thereby improving the welding quality of the triangular ring rib 22.

[0044] In this embodiment, preferably, please refer to Figure 5 , a sliding cavity is provided inside the sleeve 31, and the adjustment plate 32 is slidably arranged in the sliding cavity. A plurality of fixing holes 4 are provided on the adjustment plate 32, and a fixing bolt 5 matching the fixing hole 4 is threadedly connected on the sleeve 31. After loosening the fixing bolt 5, the adjustment plate 32 can be driven to move back and forth along the sliding cavity of the sleeve 31, so that the distance of the adjustment plate 32 extending out of the sleeve 31 can be adjusted, that is, the distance between the sleeve 31 and the block 33 on the adjustment plate 32 can be adjusted, so that the moving distance of the adjustment plate 32 and the block 33 thereon can be adjusted according to the required distance between the adjacent triangular ring ribs 22, and the adjustment can be made according to actual needs, with strong flexibility to meet the needs of different situations. After the adjustment is completed, the fixing bolt 5 is rotated and tightened to restrict and fix the adjustment plate 32 through cooperation with the fixing hole 4, and the operation is simple and convenient.

[0045] In this embodiment, preferably, please refer to Figure 4-7An inner recessed cavity 6 is provided inside the adjustment plate 32, a transfer block 7 is slidably provided inside the inner recessed cavity 6, an elastic member 8 is provided between the transfer block 7 and the inner wall of the inner recessed cavity 6, the elastic member 8 in the present application can be a spring, and a side clamping plate 9 adapted to the triangular ring rib 22 is provided at the outer end of the transfer block 7. Before inserting the adjustment plate 32 into the triangular ring rib 22, first press the adapter block 7 to move toward the inside of the inner hidden cavity 6, and compress the elastic member 8 to avoid interference between the adapter block 7 and the side clamping plate 9. When the clamping block 33 on the adjustment plate 32 is stuck at the bottom of the triangular ring rib 22, after releasing the adapter block 7, the resilience of the elastic member 8 can drive the adapter block 7 to move out of the inner hidden cavity 6 and finally restore the initial position. At this time, the side clamping plate 9 will clamp the side of the triangular ring rib 22. The triangular ring rib 22 can be better restricted by the side clamping plate 9 and the clamping block 33, which can greatly prevent the triangular ring rib 22 from shaking during welding, further improve the installation effect of the triangular ring rib 22, and improve the performance of the truss component 2.

[0046] In this embodiment, preferably, please refer to Figure 4-8 , a moving groove 10 and a connecting channel 11 are also provided in the adjustment plate 32, and the moving groove 10 and the inner recessed cavity 6 are both connected to the connecting channel 11, and a push rod 12 is slidably provided on the inner wall of the moving groove 10, and a traction rope 13 is provided at the inner end of the adapter block 7, and the other end of the traction rope 13 passes through the connecting channel 11 and is connected to the push rod 12. By pushing the push rod 12, the push rod 12 will pull the traction rope 13, and the traction rope 13 will drive the adapter block 7 to move toward the inner recessed cavity 6, thereby avoiding the inconvenience of pressing the adapter block 7 and the side card plate 9, making the operation of the staff simpler and faster, and having a good use effect. When the push rod 12 is released, the elastic member 8 can drive the adapter block 7 back to the natural state, and the traction rope 13 pulls the push rod 12 to the initial state position.

[0047] The sleeve plate 31 is provided with a slot 19 adapted to the push rod 12. When the adjustment plate 32 moves to a certain distance in the direction of the sleeve plate 31, the push rod 12 will enter the slot 19, and the slot 19 can avoid interference with the push rod 12.

[0048] In this embodiment, preferably, please refer to Figure 6 and Figure 8 The inner wall of the moving groove 10 is provided with a slide groove 14, and a slider 15 is slidably provided on the inner wall of the slide groove 14, and one end of the slider 15 is connected to the push rod 12. When the push rod 12 is pushed to move along the moving groove 10, the push rod 12 will drive the slider 15 to slide along the slide groove 14, thereby improving the stability and smoothness of the movement of the push rod 12, and the use effect is good.

[0049] In this embodiment, preferably, please refer to Figure 8The slider 15 is rotatably provided with a plurality of rollers 16, and the rollers 16 roll and fit with the inner wall of the chute 14. When the slider 15 slides along the chute 14, the slider 15 causes the rollers 16 to roll along the inner wall of the chute 14, thereby further reducing the friction of the slider 15, reducing its wear and tear, and increasing its service life.

[0050] In this embodiment, preferably, please refer to Figure 6-7 The inner wall of the connecting passage 11 is provided with a bracket 17, on which a steering wheel 18 adapted to the traction rope 13 is rotatably provided, and the other end of the traction rope 13 on the adapter block 7 is connected to the push rod 12 after being turned by the steering wheel 18. The steering of the traction rope 13 by the steering wheel 18 can make the traction rope 13 pull the adapter block 7 and the push rod 12 more smoothly and stably, and can also greatly reduce the friction of the traction rope 13, reduce the possibility of breakage, and greatly improve the service life of the traction rope 13.

[0051] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. A truss structure of a prefabricated composite plate, comprising a plurality of cross-distributed composite plate bottom ribs (1), characterized in that: Also includes: A truss component (2) is arranged on the bottom rib (1) of the composite plate and is provided in plurality; The truss component (2) comprises an upper chord rib (21) and a plurality of triangular ring ribs (22), wherein the plurality of triangular ring ribs (22) are evenly arranged on the upper chord rib (21), and the triangular ring ribs (22) are tied and connected to the bottom ribs (1) of the composite plate; A positioning component (3) is used to install and limit the triangular ring rib (22) on the upper chord rib (21).

2. A truss structure of a prefabricated composite panel according to claim 1, characterized in that: The positioning component (3) comprises: A sleeve plate (31), wherein an adjustment plate (32) is provided on the sleeve plate (31); A clamping block (33) is arranged at the bottom of the sleeve plate (31) and the adjustment plate (32), and the clamping block (33) is matched with the triangular annular rib (22).

3. The truss structure of a prefabricated composite panel according to claim 2, characterized in that: The sleeve plate (31) is provided with a sliding cavity inside, the adjustment plate (32) is slidably arranged in the sliding cavity, a plurality of fixing holes (4) are opened on the adjustment plate (32), and fixing bolts (5) adapted to the fixing holes (4) are threadedly connected to the sleeve plate (31).

4. The truss structure of a prefabricated composite panel according to claim 3, characterized in that: The adjustment plate (32) is provided with an inner recessed cavity (6), a transfer block (7) is slidably provided in the inner recessed cavity (6), an elastic member (8) is provided between the transfer block (7) and the inner wall of the inner recessed cavity (6), and a side clamping plate (9) adapted to the triangular annular rib (22) is provided at the outer end of the transfer block (7).

5. The truss structure of a prefabricated composite panel according to claim 4, characterized in that: The adjustment plate (32) is also provided with a movable groove (10) and a connecting channel (11); the movable groove (10) and the inner recessed cavity (6) are both connected to the connecting channel (11); a push rod (12) is slidably provided on the inner wall of the movable groove (10); a traction rope (13) is provided at the inner end of the adapter block (7); the other end of the traction rope (13) passes through the connecting channel (11) and is connected to the push rod (12).

6. The truss structure of a prefabricated composite panel according to claim 5, characterized in that: The inner wall of the movable groove (10) is provided with a slide groove (14), the inner wall of the slide groove (14) is slidably provided with a slider (15), and one end of the slider (15) is connected to the push rod (12).

7. The truss structure of a prefabricated composite panel according to claim 6, characterized in that: A plurality of rollers (16) are rotatably arranged on the sliding block (15), and the rollers (16) are in rolling contact with the inner wall of the sliding groove (14).

8. The truss structure of a prefabricated composite panel according to claim 5, characterized in that: A bracket (17) is provided on the inner wall of the connecting channel (11), and a steering wheel (18) adapted to the traction rope (13) is rotatably provided on the bracket (17).

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