Single-stud connecting structure for prefabricated floor slab and steel beam
Through the single-pin connection structure between prefabricated floor slabs and steel beams, the use of nail welding and grouting material leveling, the secondary pouring and cracking of floor slab joints in prefabricated buildings is solved, and the construction efficiency is improved and labor intensity is reduced.
Patent Information
- Application Number
- CN202422363985.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The secondary pouring and cracking of floor slab joints in existing prefabricated buildings leads to low construction efficiency and high labor intensity, and leveling treatment is required in the later stage.
A single-pin connection structure between prefabricated floor slabs and steel beams is adopted. By setting bolt holes on the prefabricated floor slabs and welding them with the steel beams, the grouting material is used to level it to avoid the risks of secondary casting and cracking.
It greatly saves the pouring area, improves construction efficiency, reduces labor intensity, avoids later polishing and leveling work, reduces costs and reduces cracking risks.
Smart Images
Figure CN223151355U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a single stud connection structure between a precast floor slab and a steel beam, belonging to the technical field of prefabricated buildings. Background Art
[0002] In prefabricated buildings, the floor slabs usually adopt composite floor slabs, which are laid on site. The joints between the upper layer of the composite floor slab and the slab are sealed by secondary pouring after formwork support. In addition to ensuring no leakage of concrete during pouring, there is also a large amount of concrete material for filling the gap, and leveling treatment is required later. Cracking may also occur after the concrete solidifies, further causing secondary quality problems. Summary of the Utility Model
[0003] The utility model overcomes the deficiencies of the prior art and provides a single stud connection structure between a precast floor slab and a steel beam. By using the method of stud welding, the casting area of secondary construction is greatly saved, the risk of cracking is avoided, and there is no need for grinding and leveling later, improving the construction efficiency and labor intensity.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a single stud connection structure between a precast floor slab and a steel beam, including a precast floor slab, a steel beam and studs. The precast floor slab is sequentially lapped on the steel beam. Multiple stud holes are sequentially arranged at the positions of the precast floor slab corresponding to the steel beam. The steel beam is located directly below the stud holes. The studs pass through the stud holes and are welded and fixed to the steel beam together.
[0005] Further, the studs are welded and fixed to the upper side of the steel beam.
[0006] Further, the studs are completely located within the stud holes and leveled by grouting material.
[0007] Further, the grouting material is C40.
[0008] Further, the stud holes are prefabricated holes.
[0009] Further, a steel bar mesh is embedded in the precast floor slab, and the stud holes are completely reliably avoided when being embedded.
[0010] The beneficial effects of the utility model compared with the prior art are as follows: The utility model does not require large-area secondary pouring. By using prefabricated stud holes, the studs can be quickly welded and fixed on the upper side of the precast floor slab by a stud welding machine, greatly saving the pouring slurry, improving the construction efficiency, reducing the labor intensity. After welding is completed, the gap between the stud holes and the studs is filled with slurry. The upper surface of the grouted stud holes is flush with the precast floor slab, saving the later grinding and leveling work, and further improving the construction efficiency and cost. Brief Description of the Drawings
[0011] The following further describes the present utility model in conjunction with the accompanying drawings.
[0012] Figure 1 It is a schematic structural diagram of the present utility model.
[0013] Figure 2 It is a schematic structural diagram of the steel beam installation in the present utility model.
[0014] Figure 3 It is a schematic top view structural diagram of the steel beam structure in the present utility model.
[0015] Figure 4 It is a schematic diagram of the lap joint of the precast floor slab in the present utility model.
[0016] Figure 5 It is a schematic diagram of the structural form of the precast floor slab in the present utility model Figure 1 .
[0017] Figure 6 It is a schematic diagram of the structural form of the precast floor slab in the present utility model Figure 2 .
[0018] Figure 7 It is a schematic diagram of the structural form of the precast floor slab in the present utility model Figure 3 .
[0019] Figure 8 It is a schematic partial structural diagram of the stud connection in the present utility model.
[0020] In the figure: 1 is the precast floor slab, 2 is the steel beam, 3 is the stud, 4 is the stud hole, 5 is the grouting material, 6 is the steel mesh, and 7 is the steel column. Specific embodiments
[0021] The following further elaborates on the present utility model in conjunction with specific embodiments.
[0022] As Figures 1 to 8 shown, a single stud connection structure of a precast floor slab and a steel beam of the present utility model includes a precast floor slab 1, a steel beam 2, and a stud 3. The steel beam 2 is of an I-shaped steel beam structure. The steel beam 2 is lapped with a steel column 7 to form one or more layers of steel frame structures. The precast floor slab 1 is sequentially lapped on the steel beam 2. Stud holes 4 are precast at the lap edge of the precast floor slab 1 and the steel beam 2. A plurality of stud holes 4 are sequentially arranged longitudinally along the steel beam 2. The steel beam 2 is located directly below the stud holes 4. The inner diameter and height of the stud holes 4 are both greater than the diameter and height of the stud 3, so that the stud 3 is installed by sinking into the stud holes 4. The stud 3 passes through the stud holes 4 and is welded and fixed to the upper side of the steel beam 2. The stud 3 is completely located within the stud holes 4 and is leveled by grouting with the grouting material 5. The grouting material 5 is C40.
[0023] In the utility model, a steel mesh 6 is embedded in the precast floor slab 1. When embedding the steel mesh 6, stud holes 4 can be arranged synchronously, so that the two do not interfere with each other. This avoids quality problems and construction difficulty problems caused by interference between the later drilled holes and the steel mesh 6.
[0024] The utility model does not require secondary large-area formwork support and pouring. By using the prefabricated stud holes 4, the studs 3 can be quickly welded and fixed on the upper side of the precast floor slab 1 by a stud welding machine, which greatly saves the pouring slurry, improves the construction efficiency, reduces the labor intensity. After welding, the gap between the stud holes 4 and the studs 3 is filled with slurry such as C40. The upper surface of the grouted stud holes 4 is flush with the precast floor slab 1, saving the later grinding and leveling work, further improving the construction efficiency and cost, and further reducing the cracking risk.
[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.
Claims
1. A single stud connection structure between a precast floor slab and a steel beam, characterized in that It includes precast floor slabs (1), steel beams (2) and stud bolts (3). The precast floor slabs (1) are successively lapped on the steel beams (2). Multiple stud bolt holes (4) are successively arranged at the positions of the precast floor slabs (1) corresponding to the steel beams (2). The steel beams (2) are located directly below the stud bolt holes (4). The stud bolts (3) pass through the stud bolt holes (4) and are welded and fixed to the steel beams (2).
2. The single stud connection structure between a precast floor slab and a steel beam according to claim 1, wherein The stud bolts (3) are welded and fixed to the upper side surface of the steel beams (2).
3. A single stud connection structure between a precast floor slab and a steel beam according to claim 1 or 2, characterized in that, The stud bolts (3) are completely located within the stud bolt holes (4), and the holes are leveled by grouting material (5).
4. The single stud connection structure between a precast floor slab and a steel beam according to claim 3, wherein, The grouting material (5) is C40.
5. A single stud connection structure between a precast floor slab and a steel beam according to claim 3, characterized in that, The stud bolt holes (4) are prefabricated holes.
6. The single stud connection structure between a precast floor slab and a steel beam according to claim 1, characterized in that, A steel mesh (6) is embedded in the precast floor slab (1), and the stud bolt holes (4) are completely reliably avoided from the steel mesh (6) during embedding.