A detachable support structure of a steel bar truss floor support plate

CN224799980UActive Publication Date: 2026-09-25CHINA CONSTR FIRST BUREAU GRP SOUTHEAST CONSTR CO LTD
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Patent Information

Application Number
CN202522386379.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-09-25
Estimated Expiration
2035-11-11

AI Technical Summary

Technical Problem

[0002]在建筑施工中,钢筋桁架楼承板于长悬挑端、大宽度等特定状况下需要临时支撑结构进行稳固支撑,以保证施工安全和楼承板的施工质量,目前钢筋桁架楼承板底部的临时支撑存在的技术问题是其结构多为通过现场加工完成后以焊接的方式固定于钢梁上,然而将临时支撑结构直接焊接在钢梁上,不仅费时费力,增加施工成本,且由于现场加工精度及焊接精度难以精准把控,整体支撑平整度偏差较大,在施工完成后,还要面临因切割拆除临时支撑结构给钢梁带来的损伤及较长时间的高空切割作业带来的风险,由于楼承板跨度、悬挑长度、钢梁截面尺寸不一,也会存在临时支撑结构重复利用率低,不易周转使用的问题

Benefits of technology

本实用新型通过设置可伸缩调节的连接件、第一抵接件、第二抵接件,能够方便地通过调整连接件的长度将第一抵接件、第二抵接件分别抵紧在工字钢梁的上翼缘和下翼缘之间,进而将固定架及支托件固定在工字钢梁上,安装拆卸便捷,适配多种规格工字钢梁;水平托杆和斜托杆通过销轴铰接,可转动调整,便于调节水平托杆的水平度,保证支撑效果;斜托杆长度可伸缩且水平托杆设有多个铰接孔二,能适应不同悬挑长度或跨度的楼承板,提高了结构的通用性;且整个结构可拆卸,作业后不仅免于切割作业带来的风险及避免对工字钢梁带来的切割损伤,还便于收纳和周转使用,减少了资源浪费,降低了施工成本,解决了常规结构中多为通过现场加工完成后以焊接的方式固定于钢梁上,加工精度及焊接精度难以精准把控,施工完成后,还要面临因切割拆除临时支撑结构给钢梁带来的损伤及较长时间的高空切割作业带来的风险的技术问题。

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Abstract

The utility model relates to floor support plate construction technology field, concretely disclose a kind of steel bar truss floor support plate detachable support structure, including I-beam, multiple groups of fixing frame, support piece, fixing frame includes first abutment, second abutment and connecting piece, connecting piece two ends are respectively with the middle part welding fixed of first abutment, second abutment, the opposite side of first abutment and second abutment is respectively with the upper flange inner side and lower flange inner side of I-beam and is tightly contacted, support piece includes horizontal support bar and inclined support bar, first abutment, second abutment are each equipped with hinged hole one, horizontal support bar one end end portion and inclined support bar one end end portion are respectively with first abutment and second abutment through pin shaft hinged, multiple hinged holes two are equipped with in length direction interval on horizontal support bar, the end of inclined support bar away from second abutment is hinged with horizontal support bar web, to install and detach conveniently, adapt to multiple specifications I-beam, it is convenient to store and turn around use.
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Description

Technical Field

[0001] This utility model relates to the field of floor decking construction technology, and in particular to a detachable support structure for steel truss floor decking. Background Technology

[0002] In building construction, steel truss floor decks require temporary support structures for stable support in specific situations such as long cantilever ends and large widths to ensure construction safety and the quality of the floor deck construction. Currently, the technical problem with the temporary support at the bottom of steel truss floor decks is that the structure is mostly fixed to the steel beam by welding after on-site processing. However, directly welding the temporary support structure to the steel beam is not only time-consuming and labor-intensive, increasing construction costs, but also has a large deviation in the overall flatness of the support due to the difficulty in accurately controlling the on-site processing and welding accuracy. After construction, there is also the risk of damage to the steel beam caused by cutting and removing the temporary support structure and the risk of long-term high-altitude cutting operations. Due to the different spans, cantilever lengths, and cross-sectional dimensions of the floor decks, there is also the problem of low reuse rate of the temporary support structure and difficulty in reusing it. Utility Model Content

[0003] The purpose of this utility model is to provide a detachable support structure for steel truss floor decking. The technical problem to be solved is that the structure is mostly fixed to the steel beam by welding after on-site processing. It is difficult to accurately control the processing and welding accuracy. After construction, there is also the risk of damage to the steel beam caused by cutting and dismantling the temporary support structure and the risk of long-term high-altitude cutting operations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A detachable support structure for a steel truss floor deck includes an I-beam at the bottom of the floor deck, multiple sets of fixing frames mounted on the I-beam, and support members mounted on the fixing frames. Each fixing frame includes a first abutment, a second abutment, and a connector. The connector is a turnbuckle, with both ends welded to the middle of the first and second abutments respectively. The opposing sides of the first and second abutments are respectively abutted against the inner sides of the upper and lower flanges of the I-beam. The support members include horizontal supports and diagonal supports, arranged in a right-angled triangular structure. Both the first and second abutments have a hinge hole. One end of the horizontal support and one end of the diagonal support are hinged to the first and second abutments respectively via pins. Multiple hinge holes are spaced apart along the length of the horizontal support. The diagonal support is a turnbuckle, with the end of the diagonal support away from the second abutment hinged to the web of the horizontal support.

[0005] Furthermore, the web of the I-beam is provided with multiple sets of stiffening ribs at intervals on both sides, and is fixedly mounted on both sides of the stiffening ribs.

[0006] Furthermore, both the first and second abutting parts are channel steel or angle steel.

[0007] Furthermore, reinforcing rods are fixedly provided between the connector and the first abutment and between the connector and the second abutment.

[0008] Furthermore, the horizontal support rod is made of channel steel or angle steel.

[0009] Furthermore, the horizontal support rod is set horizontally, with its top side flush with the top side of the I-beam.

[0010] Compared with the prior art, this utility model has the following features and beneficial effects: This utility model, by setting up a telescopically adjustable connector, a first abutment, and a second abutment, allows for convenient adjustment of the length of the connector to secure the first and second abutment between the upper and lower flanges of the I-beam, thereby fixing the fixing frame and support to the I-beam. Installation and disassembly are convenient, and it is compatible with various specifications of I-beams. The horizontal support rod and the diagonal support rod are hinged by a pin and can be rotated for adjustment, facilitating the levelness of the horizontal support rod and ensuring support effectiveness. The diagonal support rod is telescopic, and the horizontal support rod has multiple hinge holes to accommodate different cantilever lengths. The use of floor decking with varying degrees or spans improves the versatility of the structure; moreover, the entire structure is detachable, eliminating the risks associated with cutting operations and avoiding damage to the I-beams after construction. It also facilitates storage and reuse, reducing resource waste and construction costs. This solves the technical problems of conventional structures, which are often fixed to steel beams by welding after on-site processing, making it difficult to accurately control the processing and welding precision. After construction, there are also risks associated with cutting and dismantling temporary support structures to damage the steel beams and prolonged high-altitude cutting operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Attached reference numerals: 1. Floor deck; 2. I-beam; 3. First abutment; 4. Second abutment; 5. Connector; 6. Horizontal support rod; 7. Diagonal support rod; 8. Hinge hole one; 9. Hinge hole two; 10. Stiffening rib; 11. Reinforcing rod. Detailed Implementation

[0013] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0014] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0015] This utility model discloses a detachable support structure for steel truss floor decking, such as... Figure 1As shown, the structure includes an I-beam 2 at the bottom of the floor deck 1, multiple sets of fixing frames mounted on the I-beam 2, and support members mounted on the fixing frames. The cantilevered end of the floor deck 1 is equipped with an edge sealing plate, which is welded to the upper reinforcing steel bars at the cantilevered end of the floor deck 1. Multiple sets of stiffening ribs 10 are spaced apart on both sides of the web of the I-beam 2. The fixing frames are located on the side of the I-beam 2 facing the cantilevered end of the floor deck 1, and are mounted on both sides of the stiffening ribs 10. Each fixing frame includes a first abutment 3, a second abutment 4, and a connecting member 5. The first abutment 3 and the second abutment 4 are both channel steel or angle steel, and the length of the connecting member 5 is adjustable. Connector 5 is preferably a basket screw. Both ends of connector 5 are welded and fixed to the middle of the first abutment 3 and the second abutment 4, respectively. By adjusting the length of connector 5, the opposite sides of the first abutment 3 and the second abutment 4 are respectively pressed against the inner sides of the upper and lower flanges of the I-beam 2. Reinforcing rods 11 are fixed between connector 5 and the first abutment 3, and between connector 5 and the second abutment 4. The connection position between the reinforcing rods 11 and connector 5 should not conflict with the length adjustment function of connector 5. The support includes a horizontal support rod 6 and an inclined support rod 7. The horizontal support rod 6 is horizontally positioned. The top side is flush with the top side of the I-beam 2. The horizontal support rod 6 is used to support the bottom of the cantilever end of the floor slab 1. The horizontal support rod 6, the diagonal support rod 7, and the connecting piece 5 are arranged in a right-angled triangle structure. The first abutment piece 3 and the second abutment piece 4 are both provided with hinge holes 8. The hinge holes 8 are located on the side away from the web of the I-beam 2. One end of the horizontal support rod 6 and one end of the diagonal support rod 7 are respectively hinged to the first abutment piece 3 and the second abutment piece 4 by a pin. When needed, the end of the horizontal support rod 6 can rotate around the first abutment piece 3, and the end of the diagonal support rod 7 can rotate around the second abutment piece 4, thereby facilitating the adjustment of the horizontal support rod 6. To ensure the horizontality of the bottom support at the cantilever end of the floor deck 1 and to facilitate the subsequent storage and reuse of the fixing frame and support components, the horizontal support rod 6 is preferably made of channel steel or angle steel. Multiple hinge holes 9 are spaced apart along the length of the horizontal support rod 6. The length of the inclined support rod 7 is adjustable. The inclined support rod 7 is preferably a turnbuckle screw. The end of the inclined support rod 7 away from the second abutment 4 is hinged to the belly of the horizontal support rod 6. By setting multiple hinge holes 9 and setting the inclined support rod 7 with adjustable length, it is convenient to adjust the support position of the inclined support rod 7 on the belly of the horizontal support rod 6 according to the cantilever length of the floor deck 1, so as to achieve overall stability.

[0016] During construction, fixing frames are installed on both sides of the stiffening ribs 10 of the I-beam 2, and the fixing frames are fixed by adjusting the length of the connecting piece 5. Then, the horizontal support rod 6 and the diagonal support rod 7 are hinged to the first abutment piece 3 and the second abutment piece 4 respectively. Then, according to the span of the floor deck 1 or the cantilever length of the cantilever end, the diagonal support rod 7 is hinged to the appropriate hinge hole 9 on the horizontal support rod 6. The length of the diagonal support rod 7 is adjusted so that the horizontal support rod 6 is horizontal and stably supported at the bottom of the floor deck 1. After construction is completed, the fixing frames are removed from the I-beam 2 by adjusting the length of the connecting piece 5, and the diagonal support rod 7 is removed from the horizontal support rod 6. The horizontal support rod 6 and the diagonal support rod 7 are rotated for storage for future reuse.

[0017] This utility model, by setting up telescopically adjustable connectors, a first abutment, and a second abutment, allows for convenient adjustment of the length of the connectors to secure the first and second abutment to the upper and lower flanges of the I-beam, thereby fixing the fixing frame and support to the I-beam. Installation and disassembly are convenient, and it is compatible with various specifications of I-beams. The horizontal and diagonal supports are hinged by pins and can be rotated for adjustment, facilitating leveling of the horizontal supports and ensuring support effectiveness. The diagonal supports are telescopic, and the horizontal supports have multiple hinge holes, adapting to floor decking with different cantilever lengths or spans, improving the structure's versatility. Furthermore, the entire structure is detachable, eliminating the risks associated with cutting operations and preventing damage to the I-beam after construction. It also facilitates storage and reuse, reducing resource waste and lowering construction costs.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable support structure for a steel truss floor deck, comprising an I-beam (2) at the bottom of the floor deck (1), multiple sets of fixing frames mounted on the I-beam (2), and support members mounted on the fixing frames, characterized in that: The fixing frame includes a first abutment (3), a second abutment (4), and a connecting member (5). The connecting member (5) is a turnbuckle screw. Both ends of the connecting member (5) are welded and fixed to the middle of the first abutment (3) and the second abutment (4), respectively. The opposite sides of the first abutment (3) and the second abutment (4) are respectively pressed against the inner side of the upper flange and the inner side of the lower flange of the I-beam (2). The support includes a horizontal support rod (6) and a diagonal support rod (7). The horizontal support rod (6), the diagonal support rod (7), and the connecting member (5) are all connected to the I-beam (2). The connectors (5) are arranged in a right-angled triangle structure. The first abutment (3) and the second abutment (4) are provided with hinge holes (8). One end of the horizontal support rod (6) and one end of the inclined support rod (7) are respectively hinged to the first abutment (3) and the second abutment through a pin. The horizontal support rod (6) is provided with multiple hinge holes (9) spaced apart along the length direction. The inclined support rod (7) is a basket screw. The end of the inclined support rod (7) away from the second abutment (4) is hinged to the belly of the horizontal support rod (6).

2. The detachable support structure for steel truss floor slabs according to claim 1, characterized in that: The web of the I-beam (2) is provided with multiple sets of stiffening ribs (10) at intervals on both sides, and is fixedly mounted on both sides of the stiffening ribs (10).

3. The detachable support structure for steel truss floor slabs according to claim 2, characterized in that: Both the first abutting member (3) and the second abutting member (4) are channel steel or angle steel.

4. The detachable support structure for steel truss floor slabs according to claim 3, characterized in that: A reinforcing rod (11) is fixedly provided between the connector (5) and the first abutment (3) and between the connector (5) and the second abutment (4).

5. The detachable support structure for steel truss floor decking according to claim 1, characterized in that: The horizontal support rod (6) is made of channel steel or angle steel.

6. A detachable support structure for reinforced steel truss floor slabs according to any one of claims 1 to 5, characterized in that: The horizontal support rod (6) is set horizontally, and the top side of the horizontal support rod (6) is flush with the top side of the I-beam (2).