A steel truss floor deck early stripping support system

Abstract

This application relates to the field of building support, and in particular to an early-stripping support system for steel truss floor slabs. The system includes several parallel and vertically arranged support members; multiple horizontal connecting rods vertically fixed between adjacent support members; and several quick-release plates. Each support member has a quick-release joint at its end near the bottom formwork. Adjacent quick-release plates are fixed at both ends of the quick-release joints and abut against the bottom formwork. The quick-release plates and the lower chord reinforcement on the bottom formwork are located in the same vertical plane. This application achieves the technical effect of stably supporting steel truss floor slabs without the need for reusable scaffolding or thickened bottom formwork, and the structure is easy to install and disassemble.

Description

Technical Field

[0001] This application relates to the field of building support, and in particular to an early stripping support system for steel truss floor slabs. Background Technology

[0002] In the construction industry, the application of reinforced steel truss floor decking is becoming increasingly widespread. It effectively improves the efficiency and quality of floor decking construction, reduces on-site wet work, accelerates construction progress, and lowers labor intensity, playing a significant role in promoting the development of industrialized construction and prefabricated buildings. As the construction industry continues to develop towards higher-rise and larger-scale structures, higher demands are being placed on the stability and convenience of reinforced steel truss floor decking support systems.

[0003] To ensure the stability of reinforced concrete truss floor slabs, the industry commonly employs two reinforcement methods: one is to use reusable scaffolding, constructing complex scaffolding structures to support the floor slabs; the other is to thicken the bottom formwork to enhance its load-bearing capacity, thereby ensuring the stability of the reinforced concrete truss floor slabs during construction. However, these existing support methods have significant drawbacks. The erection and dismantling of reusable scaffolding is cumbersome, requiring substantial time and labor costs, and occupies considerable space; while thickening the bottom formwork increases material costs and may also adversely affect the floor slab's self-weight and the overall structure. Utility Model Content

[0004] The purpose of this application is to overcome the above-mentioned technical problems and provide a steel truss floor deck early stripping support system.

[0005] A reinforced steel truss floor deck early stripping support system is provided for supporting a reinforced steel truss floor deck, wherein the reinforced steel truss floor deck includes a bottom formwork and lower chord reinforcement located on the upper surface of the bottom formwork, comprising:

[0006] Several support members are provided, each of which is parallel to the others. Each support member is vertically arranged on the side of the bottom formwork away from the lower chord reinforcement and has a quick-release connector at the end near the bottom formwork.

[0007] Multiple horizontal connecting rods are vertically fixed between two adjacent support members, and

[0008] Several quick-release plates are provided, with two adjacent quick-release plates fixed at both ends of the quick-release joint and abutting against the bottom template. The quick-release plates and the lower chord reinforcement are located in the same vertical plane.

[0009] By adopting the above scheme, the horizontal connecting rod is used to connect the support component, the support component supports the quick-release plate, and the quick-release plate is used to support the bottom formwork and the truss structure above the bottom formwork, thereby achieving stable support for the steel truss floor slab, eliminating the need to reinforce the truss floor slab by using turnover scaffolding or thickening the bottom formwork.

[0010] In one embodiment, the support includes a lower support tube and an upper support tube sleeved inside the lower support tube. The lower support tube can be fixed at any position along the length of the upper support tube. The quick-release tray is fixed at one end of the upper support tube away from the lower support tube. The end of the lower support tube away from the upper support tube is provided with a base.

[0011] By adopting the above solution, the length of the support component can be adjusted to meet the support requirements of floors of different heights, and the base allows the support component to be stably supported on the ground.

[0012] In one embodiment, the upper support tube is provided with a plurality of mounting holes arranged in an array along its length, and the support member further includes a pin that passes through both the mounting holes and the lower support tube.

[0013] By adopting the above solution, after adjusting the support to a suitable length, the pin is simultaneously inserted through the mounting hole and the lower support hole, thereby achieving the fixation of the upper support tube and the lower support tube.

[0014] In one embodiment, the lower support tube has a slot at one end near the upper support tube, and the pin passes through both the slot and the mounting hole.

[0015] By adopting the above solution, since there is a gap between the mounting holes, the pin can only be adjusted at a fixed distance when it is engaged with different mounting holes. By setting the pin hole, the length of the support can be finely adjusted when the pin is fixed in different positions of the slot.

[0016] In one embodiment, the length of the slot is greater than the distance between two adjacent mounting holes.

[0017] By adopting the above solution, the insufficient length of the slot is avoided, which would prevent the mounting hole and slot from fully compensating for the adjustment error caused by the spacing between adjacent mounting holes when adjusting the support.

[0018] In one embodiment, the support further includes a screw-in nut, and the lower support tube has an external thread that mates with the screw-in nut at one end near the upper support tube, and the slot passes through the external thread.

[0019] By adopting the above scheme, when the pin passes through both the slot and the mounting hole, the engagement nut engages with the external thread. By rotating the engagement nut until it abuts against the pin, the engagement nut limits the pin and prevents the pin from sliding along the slot under the action of gravity.

[0020] In one embodiment, the upper support tube is provided with scale lines along its length.

[0021] By adopting the above solution, the length of each support component can be precisely adjusted.

[0022] In one embodiment, the outer circumferential surface of the lower support tube is provided with a wheel buckle plate, and both ends of the horizontal connecting rod are provided with fixing plates that are fixed to the wheel buckle plate.

[0023] By adopting the above scheme, the horizontal connecting rod and the support are fixed.

[0024] In one embodiment, the quick-release connector has a mounting post at its bottom, which is inserted into the upper support tube.

[0025] By adopting the above solution, the installation of the upper support pipe and the quick-release connector can be achieved, and the disassembly of the support components can also be facilitated.

[0026] In one embodiment, the quick-release connector has a first mounting groove on both sides, and the quick-release tray has a second mounting groove at both ends that connects to the first mounting groove. The quick-release connector also has a quick-release locking strip on both sides. The quick-release locking strip is embedded in both the first mounting groove and the second mounting groove, and the two ends of the quick-release locking strip are respectively fixed to the second mounting groove of two adjacent quick-release trays.

[0027] By adopting the above solution, the two ends of the quick-release lock bar are fixed to the second mounting groove of the adjacent quick-release bracket, thereby fixing the two adjacent quick-release brackets. The first mounting groove limits the quick-release lock bar to prevent it from slipping.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. Horizontal connecting rods are used to connect support components, which support quick-release trays. Quick-release trays are used to support the bottom formwork and the truss structure above the bottom formwork, thereby achieving stable support for the steel truss floor deck. At the same time, it is easy to install and dismantle, eliminating the need to reinforce the truss floor deck by using turnover scaffolding or thickening the bottom formwork.

[0030] 2. Due to the spacing between the mounting holes, the pin can only be adjusted at a fixed distance when it mates with different mounting holes. By setting a pin hole, the length of the support can be finely adjusted when the pin is fixed in different positions in the slot. By setting a thread and a screw nut on the outer circumference of the lower support tube, when the pin passes through both the slot and the mounting hole at the same time, the screw nut engages with the external thread. Rotating the screw nut until it abuts against the pin limits the pin, preventing it from sliding along the slot under the action of gravity.

[0031] 3. Both ends of the quick-release lock bar are fixed to the second mounting groove of the adjacent quick-release bracket, thereby fixing the two adjacent quick-release brackets. The first mounting groove limits the quick-release lock bar to prevent it from slipping. Attached Figure Description

[0032] Figure 1 This is an installation diagram of a steel truss floor deck early stripping support system provided in this application.

[0033] Figure 2 yes Figure 1 An enlarged view of region A.

[0034] Figure 3 This is a cross-sectional view of the connection between the upper and lower support pipes.

[0035] Figure 4 This is a schematic diagram showing the connection relationship between the wheel buckle plate and the horizontal connecting rod.

[0036] Figure 5 This is a front view of the quick-release connector.

[0037] Figure 6 This is a side view of the quick-release connector.

[0038] Figure 7 This is a front view of the quick-release tray.

[0039] Figure 8 This is a cross-sectional view of the connection between the quick-release tray and the quick-release lock bar.

[0040] Explanation of reference numerals in the attached drawings: 1. Support component; 11. Lower support tube; 111. Base; 112. Slot; 113. Ring buckle plate; 12. Upper support tube; 121. Mounting hole; 122. Scale line; 123. External thread; 13. Quick-release connector; 131. Mounting column; 132. First mounting slot; 14. Pin; 15. Engaging nut; 2. Horizontal connecting rod; 21. Fixing plate; 3. Quick-release support plate; 31. Second mounting slot; 4. Quick-release locking strip; 5. Steel truss floor deck; 51. Bottom formwork; 52. Lower chord reinforcement. Detailed Implementation

[0041] Therefore, it is necessary to provide an early-stripping support system for the steel truss floor slab 5 that is easy to install and disassemble and can stably support the steel truss floor slab 5.

[0042] Please see Figure 1 , Figure 1 This is an installation diagram of an early-stripping support system for a steel truss floor slab provided in this application. The early-stripping support system for the steel truss floor slab 5 that does not require removal of the bottom formwork provided in this application includes several support members 1, multiple horizontal connecting rods 2, and several quick-release plates 3. Each support member 1 is parallel to the others, and multiple horizontal connecting rods 2 are vertically fixed between adjacent support members 1. Two adjacent quick-release plates 3 are respectively fixed at both ends of a quick-release joint 13. The support members 1 form a stable frame through the connection of the horizontal connecting rods 2. During actual installation, the quick-release plates 3 and the lower chord reinforcement 52 are in the same vertical plane. The quick-release plates 3 evenly transfer force to the bottom formwork 51 and the lower chord reinforcement 52, thereby achieving stable support for the steel truss floor slab 5.

[0043] Please refer to the following: Figure 2-3 , Figure 3 This is a cross-sectional view of the connection between the upper and lower support pipes. Support component 1 includes a lower support pipe 11 and an upper support pipe 12. The lower support pipe 11 is generally made of metal, such as a steel pipe. It is a hollow tubular structure with a circular shape, which helps to ensure uniform stress distribution. The lower support pipe 11 can be made of seamless steel pipe to improve its strength and sealing. In practical applications, a square metal pipe can also be used instead of a circular steel pipe, as long as the load-bearing requirements are met. A base 111 is provided at the end of the lower support pipe 11 away from the upper support pipe 12. The base 111 is usually a square or circular metal plate, which is fixed to the end of the lower support pipe 11 by welding. The function of the base 111 is to increase the contact area with the ground, so that the support component 1 can be stably supported on the ground and prevent the support component 1 from tilting or shaking. In addition to the metal plate base 111, a rubber anti-slip base 111 can also be used to further enhance stability.

[0044] The upper support tube 12 is also a hollow tubular structure made of metal, generally matching the inner diameter of the lower support tube 11 so that they can be fitted together. It has multiple mounting holes 121 arranged in an array along its length. These mounting holes 121 are circular through holes for the subsequent installation of the pins 14. The mounting holes 121 can be machined using drilling technology to ensure their precision and dimensional accuracy. The upper support tube 12 has graduation markings along its outer wall. These markings can be lines and numbers engraved on the tube wall or scale strips pasted on. The purpose of these markings is to allow for precise adjustment of the length of each support component 1, facilitating operation by construction personnel according to actual needs.

[0045] The upper support tube 12 is fitted inside the lower support tube 11. The lower support tube 11 can be fixed at any position along the length of the upper support tube 12, allowing the support member 1 to adapt to the support requirements of floors of different heights. A slot 112 is provided at one end of the lower support tube 11 near the upper support tube 12. The slot 112 is an elongated through hole, the length of which is greater than the distance between two adjacent mounting holes 121. The purpose of the slot 112 is that, since there is a gap between the mounting holes 121, when the pin 14 mates with different mounting holes 121, only a fixed distance can be adjusted. Through the slot 112, when the pin 14 is fixed at different positions in the slot 112, the length of the support member 1 can be finely adjusted. The slot 112 can be machined using a milling process to ensure its dimensional accuracy.

[0046] The pin 14 is generally a metal rod-shaped structure, such as a steel rod. Its diameter matches the inner diameter of the mounting hole 121 and the slot 112 to ensure smooth insertion. The surface of the pin 14 should be smooth to reduce friction with the mounting hole 121 and the slot 112, facilitating insertion and removal. Both ends of the pin 14 can be chamfered to prevent scratches. In addition to steel rod pins 14, high-strength plastic pins 14 can also be used to reduce weight while meeting strength requirements. The pin 14 passes through both the mounting hole 121 and the slot 112 on the lower support tube 11, thereby fixing the upper support tube 12 to the lower support tube 11.

[0047] The lower support tube 11 has an external thread 123 at one end near the upper support tube 12. The external thread 123 mates with the engagement nut 15 through which the pin 14 passes. The engagement nut 15 is generally a hexagonal nut, but it can also be directly machined into a sleeve shape, and its material is the same as that of the lower support tube 11. When the pin 14 passes through both the slot 112 and the mounting hole 121, the engagement nut 15 is rotated until it abuts against the pin 14. The engagement nut 15 limits the pin 14, preventing it from sliding along the slot 112 under the action of gravity.

[0048] When the length of the support 1 needs to be adjusted, first align the different mounting holes 121 with the slots 112 to make a rough adjustment to the length of the support 1. Then, move the upper support tube 12 to the appropriate position according to the scale, insert the pin 14 into the mounting hole 121 and the slot 112 at the same time, and finally turn the engagement nut 15 to abut against the lower part of the pin 14, so that the upper support tube 12 and the lower support tube 11 no longer slide relative to each other, thereby keeping the support 1 at the length to be adjusted.

[0049] Please refer to the following: Figure 4 , Figure 4This is a schematic diagram showing the connection between the ring fastener and the horizontal connecting rod. A ring fastener 113 is provided on the outer circumference of the lower support tube 11. The ring fastener 113 is a circular metal disc with multiple eyelets arranged in a circular array on its surface, and is fixed to the lower support tube 11 by welding. The function of the ring fastener 113 is to facilitate the installation and fixation of multiple horizontal connecting rods 2 in different directions. Both ends of the horizontal connecting rod 2 are provided with fixing plates 21 that are fixed to the ring fastener 113. The fixing plates 21 are generally square metal plates with holes corresponding to the eyelets of the ring fastener 113, and are fixed to the ring fastener 113 by bolts or clips. This connection method allows the horizontal connecting rods 2 to be firmly installed between adjacent support members 1, enhancing the stability of the entire support system. The horizontal connecting rods 2 are usually metal rods, and their construction is also a hollow tubular structure, similar to the support members 1, thus ensuring strength while reducing weight.

[0050] Please refer to the following: Figure 5-6 , Figure 5 This is a front view of the quick-release connector. The bottom of the quick-release connector 13 has a mounting post 131 that inserts into the upper support tube 12. The mounting post 131 is a cylindrical metal post with a diameter that matches the inner diameter of the upper support tube 12. It is inserted into the upper support tube 12 through an interference fit or other fixing method, thus enabling the installation of the upper support tube 12 and the quick-release connector 13, and also facilitating the disassembly of the support component 1. In some cases, a dovetail joint can also be used to connect the mounting post 131 and the upper support tube 12 to enhance the connection's strength.

[0051] Please refer to the following: Figure 7-8 , Figure 8 This is a cross-sectional view of the connection between the quick-release plate and the quick-release locking bar. The quick-release connector 13 has first mounting grooves 132 on both sides. The first mounting grooves 132 are strip-shaped grooves, the width and depth of which are determined according to the dimensions of the quick-release locking bar 4. The quick-release plate 3 has second mounting grooves 31 at both ends that mate with the first mounting grooves 132. The shape and dimensions of the second mounting grooves 31 match the first mounting grooves 132. The quick-release connector 13 also has quick-release locking bars 4 embedded in the first mounting grooves 132 and the second mounting grooves 31 on both sides. The quick-release locking bar 4 is generally a metal strip, and its ends are fixed to the second mounting grooves 31 of two adjacent quick-release plates 3 by bolts or other fixing structures at both ends. The first mounting grooves 132 limit the quick-release locking bar 4, preventing it from slipping, thereby fixing the two adjacent quick-release plates 3. The quick-release plate 3 abuts against the bottom formwork 51, and the quick-release plate 3 and the lower chord steel bar 52 on the bottom formwork 51 are located on the same vertical plane. This allows the supporting force to be transmitted more reasonably and improves the supporting effect.

[0052] The working principle of this application is as follows: The entire early-stripping support system for the steel truss floor slab 5 without the need for dismantling the bottom formwork, through the coordinated action of the support member 1, the horizontal connecting rod 2, and the quick-release bracket 3, facilitates installation and dismantling while also providing stable support for the steel truss floor slab 5. The adjustable length design of the support member 1 allows the system to adapt to floors of different heights, improving its versatility. The quick-release joint 13 and the quick-release bracket 3 facilitate installation and dismantling, improving construction efficiency. The horizontal connecting rod 2 enhances the connection strength between the support members 1, ensuring the stability of the entire system. This system reduces labor and material costs, avoids the cumbersome process of erecting and dismantling reusable scaffolding, and eliminates the adverse effects of thickened bottom formwork 51 on the floor slab's self-weight and the overall structure.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel bar truss floor falsework early dismantling support system for supporting a steel bar truss floor falsework (5), the steel bar truss floor falsework (5) comprising a bottom formwork (51) and a lower chord steel bar (52) located on the upper surface of the bottom formwork (51), characterized in that, include: A number of support members (1) are provided, each of the support members (1) being parallel to each other. Each support member (1) is vertically arranged on the side of the bottom template (51) away from the lower chord reinforcement (52) and has a quick-release connector (13) at the end near the bottom template (51). Multiple horizontal connecting rods (2) are vertically fixed between two adjacent support members (1), and Several quick-release trays (3) are provided, with two adjacent quick-release trays (3) fixed at both ends of the quick-release joint (13) and abutting against the bottom template (51). The quick-release trays (3) and the lower chord reinforcement (52) are located in the same vertical plane.

2. The early-strip support system of a steel bar truss floor support plate according to claim 1, characterized in that: The support member (1) includes a lower support tube (11) and an upper support tube (12) sleeved inside the lower support tube (11). The lower support tube (11) can be fixed at any position along the length of the upper support tube (12). The quick-release tray (3) is fixed at the end of the upper support tube (12) away from the lower support tube (11). The end of the lower support tube (11) away from the upper support tube (12) is provided with a base (111).

3. The early strip support system of a steel bar truss floor support plate according to claim 2, characterized in that: The upper support tube (12) is provided with a plurality of mounting holes (121) arranged in an array along the length direction. The support member (1) also includes a pin (14) that passes through both the mounting holes (121) and the lower support tube (11).

4. The early-strip support system of a steel bar truss floor support plate according to claim 3, characterized in that: The lower support tube (11) has a slot (112) at one end near the upper support tube (12), and the pin (14) passes through both the slot (112) and the mounting hole (121).

5. The early strip support system of a steel bar truss floor support plate according to claim 4, characterized in that: The length of the slot (112) is greater than the distance between two adjacent mounting holes (121).

6. The early strip support system of a steel bar truss floor support plate according to claim 5, characterized in that: The support member (1) also includes a screw-on nut (15), and the lower support tube (11) is provided with an external thread (123) that mates with the screw-on nut (15) at one end near the upper support tube (12), and the slot (112) is provided with the external thread (123).

7. The early stripping support system for reinforced steel truss floor slabs according to claim 2, characterized in that: The upper support tube (12) has scale lines (122) along its length.

8. The early stripping support system for reinforced truss floor slabs according to claim 2, characterized in that: The lower support tube (11) has a wheel buckle plate (113) on its outer circumference, and both ends of the horizontal connecting rod (2) are provided with fixing plates (21) that are fixed to the wheel buckle plate (113).

9. The early stripping support system for reinforced steel truss floor slabs according to claim 2, characterized in that: The quick-release connector (13) has a mounting post (131) at its bottom, and the mounting post (131) is inserted into the upper support tube (12).

10. The early stripping support system for reinforced steel truss floor slabs according to claim 9, characterized in that: The quick-release connector (13) is provided with a first mounting groove (132) on both sides. The quick-release tray (3) is provided with a second mounting groove (31) at both ends that connects to the first mounting groove (132). The quick-release connector (13) is also provided with a quick-release locking strip (4) on both sides. The quick-release locking strip (4) is embedded in both the first mounting groove (132) and the second mounting groove (31). The two ends of the quick-release locking strip (4) are respectively fixed to the second mounting groove (31) of the two adjacent quick-release trays (3).

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