Steel bar truss floor support plate suspension system
By using a suspension system of support beams, fixing fixtures and cables above the reinforced truss floor deck, the problem of supporting the bottom of the large-span floor deck is solved, and lightweight construction and efficient support are achieved. It is suitable for complex environments, and the fixing fixtures are easy to disassemble, reducing material consumption and construction costs.
Patent Information
- Application Number
- CN202422647880.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When the span of the steel truss floor deck is large or the floor height is high, the existing technology requires a large number of supports to be set up underneath it, which increases the deadweight of the structure and improves the foundation bearing capacity requirements. In addition, the installation and disassembly process is time-consuming and dangerous, and the material consumption is large and inconvenient to turnover.
Support beams, fixing fixtures, cables and connecting components are used. The upper support beam provides tension to offset the gravity load and impact force during concrete pouring, avoid downward deflection, and use detachable fixing fixtures and connecting components to achieve a stable connection.
It reduces the weight that the building structure needs to bear, reduces the construction difficulty and cost, and improves construction efficiency. It is suitable for occasions with small spaces or holes. The fixing fixtures can be used in a cyclical manner to avoid damage to the support beams.
Smart Images
Figure CN223330247U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of assembled building construction, in particular to a steel bar truss floor deck suspension system. Background Art
[0002] Steel truss floor decking is a composite formwork made by factory-processing the steel bars in the floor slab into steel trusses, which are then welded to galvanized steel sheets to form an integrated structure. With the increasing emphasis placed on the development and promotion of prefabricated buildings by the government and society, steel truss floor decking has gained widespread application as a prefabricated building structure. During construction, when the span of a steel truss floor deck is large or the building floor height is high, a large number of supports are required underneath to prevent the central portion from deflecting during concrete pouring. This not only increases the deadweight of the entire structure but also places higher demands on the bearing capacity of the foundation and substructure. Furthermore, the installation and removal of internal supports is time-consuming, requires a large amount of material, and is inconvenient to recycle, while also presenting a high risk factor. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a steel truss floor deck suspension system, which can improve construction efficiency and reduce material input.
[0004] The technical solution adopted in this utility model is:
[0005] A steel truss floor deck suspension system includes a support beam, a fixing fixture, a connecting assembly and a cable; the fixing fixture is engaged with the support beam and is detachably connected to the support beam; one end of the cable is connected to the fixing fixture, and the other end is detachably connected to the connecting assembly; the connecting assembly is used to connect the steel truss floor deck.
[0006] Furthermore, the fixing fixtures are arranged in pairs and enclose a slot adapted to the support beam to clamp the support beam from four directions; the fixing fixtures are detachably connected by a plurality of fasteners.
[0007] Furthermore, the fixing fixture includes parallel upper and lower clamping plates, a clamping groove with an opening is formed between the upper and lower clamping plates, and the two clamping grooves form the clamping slot; the opposite end of the lower clamping plate connected to the upper clamping plate is provided with an installation hole for installing the fastener.
[0008] Furthermore, the fixing fixtures are arranged relative to each other and staggered, and the length direction of the lower clamping plates partially overlap to allow the installation holes to pass through.
[0009] Furthermore, the fixing fixtures are arranged at intervals, and one end of the pull cable is connected to a portion of the fastener located between the fixing fixtures.
[0010] Furthermore, the connecting assembly is arranged in the middle of the span direction of the steel bar truss floor deck, and includes a hook; one end of the cable is provided with a hook or a connecting ring adapted to the hook.
[0011] Furthermore, the connecting assembly also includes a support rod and a connecting seat; the support rod is fixed to the web of the steel truss floor deck in a direction perpendicular to the span of the steel truss floor deck, and the connecting seat is fixed to the upper part of the support rod and is provided with a threaded portion for threaded connection with the hook.
[0012] Furthermore, the height of the connecting seat does not exceed the height of the finished concrete surface of the steel bar truss floor deck.
[0013] Furthermore, a plurality of connecting seats are provided along the length direction of the support rod.
[0014] Furthermore, the two connection components are symmetrically arranged relative to the mid-span of the steel bar truss floor deck, and are respectively connected to the support beam through the cables.
[0015] The advantages and positive effects of the utility model are:
[0016] This application utilizes support beams above the steel truss floor deck, and uses fixing fixtures, cables, and connection components to connect to the steel truss floor deck, providing tension to the steel truss floor deck. This tension can offset the gravity load and part of the impact force during the concrete pouring of the steel truss floor deck, so as to prevent the steel truss floor deck from deforming and sagging. Compared with erecting a support frame on the floor slab below the steel truss floor deck, this reduces the weight that the building structure needs to bear, effectively avoiding damage to the building structure; at the same time, it reduces the difficulty and complexity of construction, reduces the material consumption of the support frame, reduces construction costs, and improves the construction efficiency of the steel truss floor deck; it can be flexibly applied to situations where there are holes below the steel truss floor deck, the space is small, and it is impossible to erect a support frame;
[0017] The fixing fixture in the present application is detachably mounted on the support beam, and clamps the support beam from four directions through the upper and lower clamping plates. The connection is stable, installation and removal are convenient, and the fixture can be used cyclically, thus avoiding damage to the support beam.
[0018] The connection assembly in this application can more conveniently connect the cable to the steel truss floor deck by providing support rods, mounting seats and hooks, so that the steel truss floor deck is more evenly stressed and has a good supporting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;
[0020] Figure 2This is a schematic diagram of the fixing fixture structure of a specific embodiment of the utility model;
[0021] Figure 3 This is a schematic structural diagram of a connection assembly according to a specific embodiment of the present invention;
[0022] Figure 4 It is a connection diagram of a connection component of a specific embodiment of the utility model.
[0023] In the picture:
[0024] 1. Support beam 2. Fixing fixture 21. Upper splint
[0025] 22. Lower clamping plate 23. Clamping groove 24. Fastener
[0026] 3. Cable 4. Connecting assembly 41. Support rod
[0027] 42. Connecting seat 43. Hook 5. Steel truss floor deck
[0028] 51. Upper chord 52. Belly DETAILED DESCRIPTION
[0029] The embodiments of the present invention are described below with reference to the accompanying drawings.
[0030] The utility model proposes a steel truss floor deck suspension system for performing reverse pull support on the steel truss floor deck from above, so as to prevent the steel truss floor deck from deforming and sagging during the concrete pouring process; compared with the method of setting up a temporary support system below the steel truss floor deck, the utility model saves material consumption and the time of setting up the support system, reduces the construction difficulty and improves the construction efficiency.
[0031] Figure 1The present invention shows a schematic structural diagram of an embodiment of a suspension system for a steel truss floor deck proposed in the present invention. The suspension system of this embodiment includes a support beam 1, a fixing fixture 2, a connecting assembly 4, and a cable 3. The support beam 1 is arranged above the steel truss floor deck 5. The support beam 1 is the upper steel beam of the current floor, which is part of the building structure and has been completed in advance. The two ends of the steel truss floor deck 5 are supported by the steel beams at the lower part of the current floor. The fixing fixture 2 is engaged with the support beam 1 and is detachably connected to the support beam 1. One end of the cable 3 is connected to the fixing fixture 2, and the other end is detachably connected to the connecting assembly 4. The connecting assembly 4 is used to connect the steel truss floor deck 5. The present invention utilizes the support beam 1, the fixing fixture 2, the cable 3, and the connecting assembly 4 above the steel truss floor deck 5 to provide tension to the steel truss floor deck 5. The tension can offset the gravity load and part of the impact force during the concrete pouring of the steel truss floor deck 5, so as to prevent the steel truss floor deck 5 from deforming and deflecting. Compared with the prior art of setting up a support frame on the floor plate below the steel truss floor decking 5, the tension provided by the steel beam above the steel truss floor decking 5 is much smaller than the superimposed load borne by the floor plate in the prior art, which reduces the weight that the building structure needs to bear and can effectively avoid damage to the building structure; at the same time, it reduces the difficulty and complexity of construction, reduces the material consumption of the support frame, reduces the construction cost, and improves the construction efficiency of the steel truss floor decking 5; in addition, the cantilever system in the present application can also be used in situations where there are holes below the steel truss floor decking 5, the space is narrow, and it is impossible to set up a support frame.
[0032] In this embodiment, the fixing fixtures 2 are arranged in pairs and form a slot adapted to the support beam 1 to clamp the support beam 1 from four directions; the fixing fixtures 2 are detachably connected by a plurality of fasteners 24 .
[0033] Specifically, if Figure 2 As shown, the above-mentioned support beam 1 adopts an I-beam, and the fixing clamp 2 is detachably arranged on the lower flange plate of the I-beam. After the two fixing clamps 2 are connected by fasteners 24, they have a clamping groove adapted to the lower flange plate, so that the fixing clamps 2 clamp the support beam 1 from four directions: the upper part, the lower part and both sides of the lower flange plate, thereby realizing a stable connection between the fixing clamp 2 and the support beam 1, and it will not move or fall off easily; at the same time, the structure is easy to install. When in use, first install a fixing clamp 2 on the support beam 1, and then install the other fixing clamp 2 on the support beam 1, and then connect the two fixing clamps 2 together through fasteners 24, so that the fixing clamp 2 can be installed on the support beam 1. The installation process is simple and quick.
[0034] In some other embodiments, the support beam 1 is made of steel components with other cross-sectional forms, and the fixing fixture 2 is designed according to the cross-sectional form of the support beam 1 so that it can adapt to the support beam 1.
[0035] Furthermore, the fixing fixture 2 includes a parallel upper clamping plate 21 and a lower clamping plate 22, and a clamping groove 23 with an opening is formed between the upper clamping plate 21 and the lower clamping plate 22, and the two clamping grooves 23 form a clamping groove; the opposite end of the lower clamping plate 22 connected to the upper clamping plate 21 is provided with an installation hole for installing a fastener 24. When in use, the two fixing fixtures 2 are respectively installed from both sides of the support beam 1, so that the support beam 1 enters the clamping groove 23 through the opening respectively. At this time, the upper clamping plate 21 of the fixing fixture 2 is located above the support beam 1, and the lower clamping plate 22 of the fixing fixture 2 is located below the support beam 1. At least one of the upper clamping plate 21 and the lower clamping plate 22 is tightly fitted with the support beam 1. Preferably, the upper clamping plate 21 and the lower clamping plate 22 are evenly supported and tightly fitted with the support beam 1 to clamp the support beam 1, so that the fixing fixture 2 is more firmly fixed to the support beam 1; then the lower clamping plates 22 of the two fixing fixtures 2 are fastened and connected by the fasteners 24 to realize the connection of the two fixing fixtures 2 and the support beam 1 into one;
[0036] The shape of the clamping groove 23 is adapted to the cross-sectional shape of the support beam 1. In this embodiment, the width of the clamping groove 23 is matched with the thickness of the lower flange of the support beam 1. Preferably, the width of the clamping groove 23 cannot be too small so that the support beam 1 can pass through the opening and enter the clamping groove 23; at the same time, the width of the clamping groove 23 cannot be too large to prevent the upper clamping plate 21 and the lower clamping plate 22 from failing to clamp the steel beam and moving or shaking during use.
[0037] In a preferred embodiment, the length of the lower splint 22 is greater than the length of the upper splint 21, and greater than half the length of the lower flange plate of the support beam 1; when in use, the fixing fixtures 2 are relatively and staggered, and the two upper splints 21 are respectively located on both sides of the web of the support beam 1. Preferably, the length of the two upper splints 21 enables them to contact the web of the support beam 1 to increase the contact area between the upper splint 21 and the support beam 1, making the connection more stable and facilitating the transfer of load; at this time, the length direction of the two lower splints 22 partially overlaps to allow the mounting hole to pass through, so as to facilitate the fastener 24 to pass through the mounting hole to connect the two fixing fixtures 2 together, so that the two are firmly fixed to the support beam 1.
[0038] Through the above technical solution, a stable connection between the fixing clamp and the support beam 1 can be achieved without welding or using other connecting structures. The installation and disassembly operations are more convenient, so that the fixing clamp can be used cyclically while avoiding damage to the support beam 1.
[0039] Furthermore, the fixing fixtures 2 are arranged at intervals, and one end of the cable 3 is connected to the portion of the fastener 24 located between the fixing fixtures 2 .
[0040] Specifically, the fastener 24 adopts a high-strength bolt, and its two ends are fixed to the two fixing fixtures 2 by nuts; the number of fasteners 24 can be set according to usage requirements. When the number of fasteners 24 is odd, the cable 3 passes around the fastener 24 in the middle and is fixed by a matching wire rope clamp; when the number of fasteners 24 is even, the cable 3 passes around the fastener 24 in the middle and is fixed by a matching wire rope clamp, so that the two fixing fixtures 2 are balanced in force, and the load is evenly transferred to the support beam 1, so that different parts of the support beam 1 are in a force balance state, which is beneficial to improving the stability and safety of the connection structure.
[0041] The above-mentioned cable 3 is made of steel wire rope, which has the advantages of high strength, light weight and good load transmission. Its overall length can be adjusted by the matching steel wire rope clamp so that it can meet the use requirements, with stable connection and convenient construction.
[0042] like Figure 1 、 Figure 3 、 Figure 4 As shown, the connecting component 4 in this embodiment is arranged in the middle of the span direction of the steel truss floor deck 5, and includes a hook 43; one end of the cable 3 is provided with a hook or a connecting ring adapted to the hook 43. By connecting the hook or the connecting ring of the cable 3 to the hook 43, the connection between the cable 3 and the connecting component 4 can be conveniently achieved, and then the connection between the cable 3 and the steel truss floor deck 5 can be achieved.
[0043] In the present application, the connection component 4 can be set to one or more. When the connection component 4 is set to one, the position of the hook 43 is set at the center of the steel truss floor deck 5. Two support beams 1 are provided above the steel truss floor deck 5. The two support beams 1 are respectively connected to a cable 3 through a fixing clamp. The two cables 3 are respectively connected to the hook 43, and they jointly bear the tension transmitted by the steel truss floor deck 5; when the connection component 4 is set to multiple, the hooks 43 are evenly dispersed along the span of the steel truss floor deck 5, each hook 43 is respectively connected to a cable 3, and the cables 3 on both sides are alternately set, and they jointly bear the tension transmitted by the steel truss floor deck 5.
[0044] Preferably, the connection assembly 4 also includes a support rod 41 and a connection seat 42; the support rod 41 is fixed to the web 52 of the steel truss floor deck 5 in a direction perpendicular to the span of the steel truss floor deck 5, and the connection seat 42 is fixed to the support rod 41 and is provided with a threaded portion for threaded connection with the hook 43. Preferably, the support rod 41 is passed between the webs 52 of the steel truss floor deck 5 in a direction perpendicular to the upper chord 51 of the steel truss floor deck 5, and is welded or tied to the upper end of the web 52. The connection seat 42 is welded to the upper part of the support rod 41 and is located between adjacent webs 52. The hook 43 is threadedly connected to the connection seat 42 for easy installation and disassembly. By providing the support rod 41, the tensile force can be better transmitted to the steel truss floor deck 5, so that the force on the steel truss floor deck 5 is more balanced.
[0045] When in use, the hook 43 is installed on the connecting seat 42, and then the cable 3 is connected to the hook 43, and then the concrete of the steel truss floor deck 5 is poured. After the concrete is formed, the cable 3 and the hook 43 are removed in turn, which facilitates the turnover of the cable 3 and the hook 43 without damaging the finished surface of the concrete.
[0046] In a specific embodiment, the connecting seat 42 includes two short columns and at least one high-strength nut. The bottom of the short column is welded to the support rod 41. The high-strength nut is arranged between the two short columns, and its threaded portion is arranged in the vertical direction. The lower end of the hook 43 is provided with a thread that matches the threaded portion. By inserting the hook 43 into the threaded portion and rotating the hook 43, a stable connection between the hook 43 and the connecting seat 42 can be achieved. Similarly, the hook 43 can also be quickly removed from the connecting seat 42, and the operation is convenient and quick.
[0047] In order to ensure the flatness of the concrete finishing surface of the steel truss floor deck 5 and facilitate subsequent construction, the height of the connecting seat 42 does not exceed the height of the concrete finishing surface of the steel truss floor deck 5. It can be understood that when the hook 43 is removed from the connecting seat 42, the connecting seat 42 will not protrude from the concrete connecting surface and leave holes in the corresponding position of the finished surface. The flatness of the concrete finishing surface can be achieved by plastering, filling and other measures.
[0048] In a specific embodiment, the span of the steel truss floor decking 5 is large and the weight is heavy. In order to achieve a better supporting effect, a plurality of connecting seats 42 are provided in the length direction of the support rod 41. Each connecting seat 42 is connected to a cable 3. The cables 3 on both sides are alternately arranged to jointly bear the steel truss floor decking 5, and further transmit the tension transmitted by the steel truss floor decking 5 to the support beam 1, thereby achieving stable support for the steel truss floor decking 5; preferably, a plurality of connecting seats 42 are evenly dispersed, so that each part of the steel truss floor decking 5 and the support beam 1 is evenly stressed.
[0049] In another specific embodiment, the two connecting components 4 are symmetrically arranged relative to the mid-span of the steel truss floor deck 5, and are respectively connected to the support beam 1 through the cable 3, thereby achieving a good supporting effect for the large-span steel truss floor deck 5.
[0050] This application utilizes support beams above the steel truss floor deck, and uses fixing fixtures, cables, and connection components to connect to the steel truss floor deck, providing tension to the steel truss floor deck. This tension can offset the gravity load and part of the impact force during the concrete pouring of the steel truss floor deck, so as to prevent the steel truss floor deck from deforming and sagging. Compared with erecting a support frame on the floor slab below the steel truss floor deck, this reduces the weight that the building structure needs to bear, effectively avoiding damage to the building structure; at the same time, it reduces the difficulty and complexity of construction, reduces the material consumption of the support frame, reduces construction costs, and improves the construction efficiency of the steel truss floor deck; it can be flexibly applied to situations where there are holes below the steel truss floor deck, the space is small, and it is impossible to erect a support frame;
[0051] The fixing fixture in the present application is detachably mounted on the support beam, and clamps the support beam from four directions through the upper and lower clamping plates. The connection is stable, installation and removal are convenient, and the fixture can be used cyclically, thus avoiding damage to the support beam.
[0052] The connection assembly in this application can more conveniently connect the cable to the steel truss floor deck by providing support rods, mounting seats and hooks, so that the steel truss floor deck is more evenly stressed and has a good supporting effect.
[0053] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A steel truss floor deck suspension system, characterized by: It includes a support beam, a fixing fixture, a connecting assembly and a cable; the fixing fixture is engaged with the support beam and is detachably connected to the support beam; one end of the cable is connected to the fixing fixture, and the other end is detachably connected to the connecting assembly; the connecting assembly is used to connect the steel truss floor deck; the fixing fixtures are arranged in pairs and form a slot that is compatible with the support beam to clamp the support beam from four directions; the fixing fixtures are detachably connected by a number of fasteners.
2. The steel truss floor deck suspension system according to claim 1, characterized in that: The fixing fixture includes a parallel upper clamping plate and a lower clamping plate, a clamping groove with an opening is formed between the upper clamping plate and the lower clamping plate, and the two clamping grooves surround the clamping slot; the opposite end of the lower clamping plate connected to the upper clamping plate is provided with a mounting hole for installing the fastener.
3. The steel truss floor deck suspension system according to claim 2, characterized in that: The fixing fixtures are arranged relative to each other and staggered, and the length direction of the lower clamping plates partially overlaps to allow the mounting holes to pass through.
4. The steel truss floor deck suspension system according to claim 3, characterized in that: The fixing fixtures are arranged at intervals, and one end of the pull cable is connected to a portion of the fastener located between the fixing fixtures.
5. The steel truss floor deck suspension system according to any one of claims 1 to 4, characterized in that: The connecting assembly is arranged in the middle of the span direction of the steel bar truss floor deck, and includes a hook; one end of the cable is provided with a hook or a connecting ring adapted to the hook.
6. The steel bar truss floor deck suspension system according to claim 5, characterized in that: The connecting assembly also includes a support rod and a connecting seat; the support rod is fixed to the web of the steel truss floor deck in a direction perpendicular to the span of the steel truss floor deck, and the connecting seat is fixed to the upper part of the support rod and is provided with a threaded portion for threaded connection with the hook.
7. The steel truss floor deck suspension system according to claim 6, characterized in that: The height of the connecting seat does not exceed the height of the finished concrete surface of the steel truss floor slab.
8. The steel truss floor deck suspension system according to claim 6 or 7, characterized in that: A plurality of connecting seats are provided in the length direction of the support rod.
9. The steel truss floor deck suspension system according to claim 8, characterized in that: The two connection components are symmetrically arranged relative to the mid-span of the steel bar truss floor deck, and are respectively connected to the support beam through the cables.