Wall connecting piece for connecting outer wall and outdoor elevator outer wall scaffold
By pre-embedding L-shaped connecting rods and water-stop rings in the exterior wall, the problem of not being able to install wall ties on the exterior walls of basements in mountainous areas was solved, ensuring the stability and waterproofing effect of the elevator scaffolding, and reducing material waste and construction costs.
Patent Information
- Application Number
- CN202421838091.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In mountainous construction, it is impossible to install wall ties on the basement exterior walls, which leads to instability of the outdoor elevator scaffolding. Furthermore, the steel pipe pre-embedding method is difficult to effectively fix in areas with heavy rainfall and high groundwater pressure, posing a risk of water seepage.
The wall ties structure, which uses pre-embedded L-shaped connecting rods and water-stop rings, includes right-angle sections, straight sections, and circular rings. It is fixed to the outer wall by welding and combined with malleable cast iron fasteners to connect the horizontal and vertical poles of the scaffold, forming a stable elevator scaffold system.
This achieved a reliable connection between the outdoor elevator scaffolding and the exterior wall, avoiding the risks of scaffolding collapse and leakage, and reducing material costs and construction complexity.
Smart Images
Figure CN223661341U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding. Background Technology
[0002] During construction, especially in mountainous areas like Chongqing and Guiyang, basements are often located above ground level with reinforced concrete exterior walls. This makes it impossible to install wall ties on the basement walls. As the outdoor elevator scaffolding rises higher, it becomes increasingly unstable, often resulting in a growing distance between the scaffolding and the wall. Therefore, establishing proper wall ties, effectively securing the scaffolding, and preventing its collapse are crucial issues that must be addressed during construction.
[0003] Due to the high height of the outdoor elevator scaffolding, neither outriggers nor pre-embedded steel pipes are feasible. If the traditional steel pipe wall ties are used for reinforcement, the steel pipes are pre-embedded in the exterior wall using steel pipe fasteners. Once the concrete reaches its design strength after the current floor is poured, it can provide reinforcement. However, in areas like Guiyang, where there is heavy rainfall and deep foundations, the water table is high, resulting in significant water pressure in the basement. Basement exterior wall waterproofing relies on the structure's own waterproofing and waterproof membranes. The holes left in the basement exterior walls after the scaffolding is removed are difficult to repair and seal. Failure of any waterproofing layer could lead to water seepage. Utility Model Content
[0004] The purpose of this utility model is to provide a wall tie for connecting the exterior wall and the outdoor elevator scaffolding. The pre-embedded wall tie solves problems such as controlling the distance between the outdoor elevator scaffolding and the exterior wall, the verticality of the outdoor elevator scaffolding, and potential leakage hazards in the exterior wall structure.
[0005] This utility model includes an external scaffold horizontal bar 1, an external scaffold vertical bar 2, a water-stop ring 4, and an L-shaped connecting rod. The L-shaped connecting rod is formed by bending a steel bar at 90° and is divided into a right-angle section 3, a straight section 5, and a circular ring 7. The L-shaped connecting rod is partially embedded in the external wall 6. The water-stop ring 4 is welded to the straight section 5 embedded in the wall by the L-shaped connecting rod. The external scaffold horizontal bar 8 is located above the external scaffold horizontal bar 1 and is connected to the external scaffold vertical bar 2 by fasteners. The three components form the entire outdoor elevator external scaffold system. The external scaffold vertical bar 2 passes through the circular ring 7 of the L-shaped connecting rod, and the circular ring 7 is connected to the outdoor elevator external scaffold vertical bar 2 to form a wall tie.
[0006] The right-angle section 3, straight section 5 and circular section 7 inside the outer wall 6 are made of round steel with a diameter of 20mm. The total length of the right-angle section 3 embedded inside the outer wall 6 is 260mm. The length of the straight section 5 is the distance between the center of the wall and the frame, and one end forms the total length of the circular section 7. The diameter of the circular section 7 is 5-10mm larger than the outer diameter of the steel pipe of the outer frame upright 2. The water-stop ring 4 is 50mm away from the edge of the outer wall of the structure. The circular section 7 is connected to the outdoor elevator outer frame upright 2.
[0007] The surfaces of the straight section 5 and the annular section 7 are coated with anti-rust paint.
[0008] The horizontal bar 1 and the vertical bar 2 of the external scaffold are connected by fasteners made of malleable cast iron. The fasteners are double fasteners.
[0009] The water-stop ring 4 and the straight section 5 are fully welded together on both sides.
[0010] The horizontal bar 1 of the external scaffold is a round steel pipe, the vertical bar 2 of the external scaffold is a round steel pipe, and the water-stop ring 4 is a steel plate ring.
[0011] The specifications for the round steel pipe are φ48×3.6mm.
[0012] The specifications for the water-stop ring 4 are 4mm thick and 150mm in diameter.
[0013] The steel bars for the pre-embedded right-angle section 3, straight section 5, and circular section 7 are HPB300 steel bars with a diameter of 20mm.
[0014] The straight section 5 extends into the through-wall bolt hole opened in the outer wall 6. The threaded end of the straight section 5 extends out of the inner side of the outer wall 6 and is fitted with a nut. The outer frame upright 2 is inserted into the ring part 7.
[0015] Multiple sets of wall ties are used to connect the exterior wall to the outdoor elevator scaffolding. These sets of wall ties are arranged sequentially between the scaffolding uprights 2 and the exterior wall 6. The longitudinal and transverse spacing of the wall ties is strictly set according to the specific plan.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This utility model adopts the method of pre-embedded wall tie components in structural concrete, which ensures a reliable connection between the outdoor elevator scaffolding and the wall. It is also highly practical and inexpensive, reducing material rental costs and material waste compared to the previous method of pre-embedding with steel pipes.
[0018] 2. The wall tie of this utility model will not damage the structural wall and plays a key role in preventing leakage of the exterior wall. Attached Figure Description
[0019] Figure 1 This is a side view of the pre-embedded and connected wall-connecting component of the present invention for use in external walls and outdoor elevator scaffolding.
[0020] Figure 2 This is a top view diagram showing the pre-embedded and connected wall ties between the exterior wall and the outdoor elevator scaffolding of this utility model.
[0021] In the diagram, the external scaffold horizontal bar is 1, the external scaffold vertical bar is 2, the right-angle section is 3, the water-stop ring is 4, the straight section is 5, the external wall is 6, the circular ring is 7, and the external scaffold small horizontal bar is 8. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0023] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a structural schematic diagram of a wall tie for connecting an exterior wall to an outdoor elevator scaffold, provided in an embodiment of the present invention. Figure 2 This is a top view of the application of the wall tie for connecting the exterior wall and the outdoor elevator scaffolding provided in an embodiment of the present utility model.
[0025] In a specific embodiment, the wall tie provided by this utility model for connecting the side wall of the basement exterior wall and the exterior wall scaffolding mainly includes the following components: a right-angle section 3 embedded in the wall, a straight section 5, a circular ring 7, a water-stop ring 4, an exterior wall 6, an exterior scaffolding horizontal bar 1, an exterior scaffolding vertical bar 2, and an exterior scaffolding small horizontal bar 8.
[0026] First, the L-shaped connecting rod is processed, consisting of three parts: a right-angle section 3, a straight section 5, and a circular ring 7. Then, the water-stop ring 4 is welded to the straight section 5. Next, the L-shaped connecting rod is pre-embedded in the outer wall 6 according to the positioning dimensions. The right-angle section 3 in the pre-embedded wall 6 is 260mm long, and the circular ring 7 is bent into a circle, slightly larger than the steel pipe. The circular ring 7 is connected to the external scaffold upright 2 to form a wall tie.
[0027] In this embodiment, the water-stop ring 4 is welded to the right-angle section 3 inside the pre-embedded wall to form a later anti-leakage measure.
[0028] In this embodiment, during the dismantling of the frame, the wall ties are gradually cut off. After the cut-off ends are treated with rust prevention, the waterproof layer can be applied.
[0029] In this embodiment, the L-shaped connecting rod is made of round steel, with one end pre-embedded at 90° and the other end being a circular ring 7.
[0030] To more clearly illustrate the application effect of the wall tie used to connect the exterior wall and the outdoor elevator scaffolding, a specific construction method is given below:
[0031] The first step is to bend one end of the round steel into a 90° hook and embed it in the wall. The length of the right-angle section 3 is 260mm, and the length of the straight section 5 embedded in the wall is half the size of the outer wall.
[0032] The second step is to place the four water-stop rings 50mm from the edge of the outer wall, and after fixing the position, weld them together on both sides.
[0033] The third step is to make the length of the straight section 5 the distance between the center of the wall and the frame, and to form a circular part 7 at one end. The circular part 7 needs to be bent into a circle, and the size of the circle should be slightly larger than the size of the steel pipe.
[0034] The fourth step is to pre-embed the L-shaped connecting rods according to the measured and positioned dimensions after setting up the wall formwork, and then pour concrete.
[0035] Fifth, after the concrete pouring and curing of the exterior wall 6 of this floor is completed and the concrete reaches the design strength, the wall tie can play an effective tying role.
[0036] Step 6: When installing the outdoor elevator scaffolding, the external scaffolding uprights 2 pass through the circular ring 7 to install the scaffolding, forming a wall tie and serving as a tie.
[0037] Step 7: During the dismantling of the scaffold, gradually remove the wall ties, apply anti-rust paint to the cut ends, and then proceed to the next step.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wall tie for connecting an exterior wall to an outdoor elevator scaffold, characterized in that, The system includes an external scaffold horizontal bar (1), an external scaffold vertical bar (2), a water-stop ring (4), and an L-shaped connecting rod. The L-shaped connecting rod is made by bending a steel bar at 90° and is divided into a right-angle section (3), a straight section (5), and a circular ring (7). The L-shaped connecting rod is embedded in the external wall (6). The water-stop ring (4) is welded to the straight section (5) embedded in the wall. The external scaffold horizontal bar (8) is located above the external scaffold horizontal bar (1) and is connected to the external scaffold vertical bar (2) by fasteners. The three components form the entire outdoor elevator external scaffold system. The external scaffold vertical bar (2) passes through the circular ring (7) of the L-shaped connecting rod and is connected to the outdoor elevator external scaffold vertical bar (2) to form a wall tie.
2. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The right-angle section (3), straight section (5) and circular section (7) of the outer wall (6) are made of round steel with a diameter of 20mm. The total length of the right-angle section (3) embedded in the outer wall (6) is 260mm. The length of the straight section (5) is the distance between the center of the wall and the frame, and one end forms the total length of the circular section (7). The diameter of the circular section (7) is 5-10mm larger than the outer diameter of the steel pipe of the outer frame upright (2). The water-stop ring (4) is 50mm away from the edge of the outer wall of the structure. The circular section (7) is connected to the outdoor elevator outer frame upright (2).
3. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The straight section (5) and the annular section (7) are coated with anti-rust paint.
4. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The horizontal bar (1) of the external scaffold and the vertical bar (2) of the external scaffold are connected by fasteners made of fixed malleable cast iron, and the fasteners are double fasteners.
5. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The water-stop ring (4) and the straight section (5) are fully welded together on both sides.
6. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The horizontal bar (1) of the external scaffold is a round steel pipe, the vertical bar (2) of the external scaffold is a round steel pipe, and the water-stop ring (4) is a steel plate ring; the specifications of the round steel pipe are φ48×3.6mm, and the specifications of the water-stop ring (4) are 4mm thick and 150mm in diameter.
7. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The steel bars in the pre-embedded right-angle section (3), straight section (5), and circular section (7) are HPB300 steel bars with a diameter of 20mm.
8. The wall tie for connecting the exterior wall and the outdoor elevator exterior wall scaffolding according to claim 1, characterized in that, The straight section (5) extends into the through-wall screw hole opened in the outer wall (6), and the threaded end of the straight section (5) extends out of the inner side of the outer wall (6) and is fitted with a nut. The outer frame upright (2) is inserted into the ring part (7).