Anti-leak structure constructed at the junction of steel bar truss floor slab

By using a combination of carbon fiber cloth and waterproof membrane layer at the junction of the steel truss floor slabs, along with the design of welded studs and ceramic washers, the leakage problem at the junction of the floor slabs was solved, and the waterproof performance and bonding strength were enhanced.

CN224531935UActive Publication Date: 2026-07-21CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the construction of steel structures, leakage is prone to occur at the junction of floor decking, causing the poured concrete to drip. Existing technologies have not been able to effectively solve this problem.

Method used

The system combines carbon fiber cloth layers and waterproof membrane layers, which are welded to floor slabs and steel beams with studs, and then bonded with ceramic gaskets and asphalt paste to form a leak-proof structure, enhancing bonding strength and waterproof performance.

Benefits of technology

It effectively prevents leakage at the junction of floor slabs, enhances the bonding strength between the floor slab and the concrete, prevents the waterproof membrane from being torn, and improves the overall anti-leakage performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of building construction technology, and disclose a kind of anti-seepage structure of construction in the junction of steel bar truss floor slab, the junction corresponds to the top of steel beam, and formed between two floor slabs, the anti-seepage structure includes: carbon fiber cloth layer, laid in the top of steel beam and covers the area corresponding the junction;Waterproofing membrane layer, laid in the top of carbon fiber cloth layer and covers the area corresponding the junction;And two fixing piece groups, respectively used for two floor slabs and steel beam fixed.The utility model can effectively solve the leakage problem of the junction under each working condition of floor slab by waterproofing membrane and carbon fiber cloth combination, while the high elastic modulus of carbon fiber cloth can also play the role of bearing, unloading, and effectively prevent waterproofing membrane from being torn, to enhance the overall anti-seepage performance.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a seepage prevention structure constructed at the junction of steel truss floor slabs. Background Technology

[0002] In modern building structures, steel structures are widely used due to their light weight and good mechanical properties. During steel structure construction, the construction of floor decking is particularly important, as it not only affects the overall safety of the steel structure but also its functionality. Therefore, how to properly construct steel structure floor decking is both a key focus and a challenge in the steel structure construction process.

[0003] In actual construction, the structural form of floor decking is mostly steel truss floor decking. Managers often only focus on the bond strength between the steel truss floor decking and the cast-in-place concrete, neglecting the details at the junction of the floor decking and the steel beams. This can lead to leakage at the junction of the floor decking and the steel beams, causing the poured concrete to drip. Therefore, we propose a leak-proof structure for the junction of steel truss floor decking to solve this problem. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a seepage-proof structure for construction at the junction of reinforced truss floor slabs, thus solving the problem of potential leakage at the junction of floor slabs.

[0005] This utility model is achieved through the following solution: a leak-proof structure constructed at the junction of reinforced concrete truss floor slabs, wherein the junction corresponds to the top of the steel beam and is formed between two floor slabs, and the leak-proof structure includes:

[0006] A carbon fiber cloth layer is laid on top of the steel beam and covers the area corresponding to the intersection.

[0007] A waterproof membrane layer is laid on top of the carbon fiber fabric layer and covers the area corresponding to the junction; and

[0008] Two fastener sets are used to fix the two floor slabs to the steel beams, respectively.

[0009] A further improvement of the anti-seepage structure of this utility model at the junction of steel truss floor slabs is that each of the fixing components includes multiple welding studs, and the multiple welding studs are spaced apart along the length direction of the junction and weld the steel beam to the corresponding floor slab.

[0010] A further improvement of the anti-seepage structure at the junction of the steel truss floor slab of this utility model is that multiple through holes corresponding to each welding stud are passed through both the carbon fiber cloth layer and the waterproof membrane layer. One end of the welding stud is welded to the steel beam, and the other end of the welding stud passes through the corresponding through hole and is welded to the floor slab.

[0011] A further improvement of the anti-seepage structure at the junction of the steel truss floor slabs of this utility model is that multiple weld joints corresponding to multiple through holes are passed through the two floor slabs respectively. The other end of the welding stud passes through the corresponding weld joint and extends to the top of the floor slab for anchoring in the cast-in-place concrete. The other end of the welding stud is fully welded to the corresponding weld joint.

[0012] A further improvement of the anti-leakage structure of this utility model at the junction of steel truss floor slabs is that a ceramic washer is provided on the outside of the weld stud to seal the gap between the weld stud and the corresponding through hole.

[0013] A further improvement of the anti-seepage structure of this utility model at the junction of the steel truss floor slab is that asphalt paste is used to bond the carbon fiber cloth layer and the waterproof membrane layer, as well as the waterproof membrane layer and the floor slab.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention effectively solves the leakage problem at the interface of floor slabs under various working conditions by combining waterproof membrane and carbon fiber cloth. At the same time, the high elastic modulus of carbon fiber cloth can also play a role in load-bearing and load-bearing, and effectively prevent the waterproof membrane from being torn, thereby enhancing the overall anti-leakage performance. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the floor slab splicing according to this utility model is shown.

[0017] In the diagram: 1. Steel beam; 2. Floor slab; 3. Carbon fiber cloth layer; 4. Waterproof membrane layer; 5. Welding stud; 6. Ceramic washer. Detailed Implementation

[0018] To address the potential leakage problem at the junction of floor slabs, this utility model provides a leak-proof structure for construction at the junction of reinforced truss floor slabs. The following detailed description, in conjunction with specific embodiments and accompanying drawings, further illustrates this leak-proof structure for construction at the junction of reinforced truss floor slabs.

[0019] See Figure 1 As shown, a seepage-proof structure is constructed at the junction of reinforced truss floor slabs. The junction corresponds to the top of the steel beam 1 and is formed between two floor slabs 2. The seepage-proof structure includes:

[0020] Carbon fiber cloth layer 3 is laid on top of steel beam 1 and covers the corresponding junction area;

[0021] Waterproof membrane layer 4 is laid on top of carbon fiber cloth layer 3 and covers the corresponding junction areas; and

[0022] Two fastener sets are used to fix the two floor slabs 2 to the steel beam 1 respectively.

[0023] The combination of waterproof membrane and carbon fiber cloth can effectively solve the leakage problem at the junction of floor slabs under various working conditions. At the same time, the high elastic modulus of carbon fiber cloth can also play a role in load-bearing and load-bearing, and effectively prevent the waterproof membrane from being torn, thereby enhancing the overall anti-leakage performance.

[0024] Each fastener group includes multiple welding studs 5, and the multiple welding studs 5 are spaced apart along the length direction of the junction and weld the steel beam 1 to the corresponding floor slab 2.

[0025] Both the carbon fiber cloth layer 3 and the waterproof membrane layer 4 have multiple through holes corresponding to each welding stud 5. One end of the welding stud 5 is welded to the steel beam 1, and the other end of the welding stud 5 passes through the corresponding through hole and is welded to the floor slab 2.

[0026] Multiple welds (not shown in the figure) are passed through the two floor slabs 2, each corresponding to a number of through holes. The other end of the welding stud 5 passes through the corresponding weld and extends to the top of the floor slab 2 for anchoring in the cast-in-place concrete. The other end of the welding stud 5 is fully welded to the corresponding weld.

[0027] By adopting the above design, the welding studs 5 can restrict the movement of the two intersecting floor slabs 2 relative to the steel beam 1 on the one hand, and on the other hand, the other end of the welding studs 5 is anchored in the concrete, which can greatly enhance the bond between the floor slabs 2 and the concrete.

[0028] Among them, the outer fixing sleeve of the welding stud 5 is equipped with a ceramic washer 6, which is used to seal the gap between the welding stud 5 and the corresponding through hole.

[0029] By adopting the above design, the ceramic washer 6 can enhance the anchoring strength of the weld stud 5, while protecting the waterproof membrane from damage.

[0030] Among them, asphalt paste is used to bond the carbon fiber cloth layer 3 to the waterproof membrane layer 4, and the waterproof membrane layer 4 to the floor slab 2.

[0031] By adopting the above design, it is convenient to lay and fix the carbon fiber cloth layer 3 and the waterproof membrane layer 4.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A leak-proof structure constructed at the junction of a reinforced truss floor slab, characterized in that, The junction corresponds to the top of the steel beam and is formed between two floor slabs. The anti-leakage structure includes: A carbon fiber cloth layer is laid on top of the steel beam and covers the area corresponding to the intersection. A waterproof membrane layer is laid on top of the carbon fiber fabric layer and covers the area corresponding to the junction; and Two fastener sets are used to fix the two floor slabs to the steel beams, respectively.

2. The anti-seepage structure constructed at the junction of the steel truss floor slab as described in claim 1, characterized in that, Each of the fastener assemblies includes multiple welding studs, which are spaced apart along the length of the junction and weld the steel beam to the corresponding floor slab.

3. The anti-seepage structure constructed at the junction of the steel truss floor slab as described in claim 2, characterized in that, Both the carbon fiber cloth layer and the waterproof membrane layer have multiple through holes corresponding to each welding stud. One end of the welding stud is welded to the steel beam, and the other end of the welding stud passes through the corresponding through hole and is welded to the floor slab.

4. The anti-seepage structure constructed at the junction of the steel truss floor slab as described in claim 3, characterized in that, The two floor slabs are perforated with multiple welds corresponding to multiple through holes. The other end of the welding stud passes through the corresponding weld and extends to the top of the floor slab for anchoring in the cast-in-place concrete. The other end of the welding stud is fully welded to the corresponding weld.

5. The anti-seepage structure constructed at the junction of the steel truss floor slab as described in claim 3, characterized in that, The welding stud is externally fixed with a ceramic washer to seal the gap between the welding stud and the corresponding through hole.

6. The anti-seepage structure constructed at the junction of reinforced truss floor slabs as described in claim 1, characterized in that, The carbon fiber cloth layer and the waterproof membrane layer, as well as the waterproof membrane layer and the floor slab, are bonded together using asphalt adhesive.