Steel enclosing purlin and enclosure gap filling device
By using a gap-filling device between the steel waler and the retaining structure in the foundation pit retaining structure, and by using an installation frame and template to fix the concrete bottom formwork, the problem of filling the gap between the steel waler and the construction pile was solved, which improved construction efficiency, reduced costs, and enhanced the stability of the steel support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
In the foundation pit retaining structure, the gap between the steel waler and the construction pile affects the stress of the steel support, and the manual filling of concrete is laborious and costly, making it difficult to effectively transmit pressure loads.
A gap-filling device between the steel waler and the retaining structure is adopted. The concrete bottom formwork is fixed by the installation frame and template, and the construction piles and steel walers are used as side formwork for concrete pouring, which simplifies the installation process and reduces costs.
It achieves efficient and low-cost concrete filling, improves construction efficiency, enhances the stability of steel supports, and reduces construction costs.
Smart Images

Figure CN224451657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foundation pit retaining construction, and in particular to a gap filling device between steel walers and retaining structures. Background Technology
[0002] When the foundation pit retaining structure is a combination of SMW method piles and steel supports, after the foundation pit is excavated, the steel walers are installed, and the steel supports are installed, there is a certain gap between the depression formed by two adjacent method piles and the steel walers, for example, 3-8cm. If the steel support is directly opposite the depression, it will affect the overall stress of the steel support and pose a safety hazard to the foundation pit.
[0003] Based on design requirements, the gap between the concrete piles and the steel walers needs to be filled with plain fine aggregate concrete to transmit pressure loads. However, due to the small volume of concrete to be poured, manual formwork erection is laborious, resulting in poor filling effectiveness and high costs. Therefore, it is necessary to develop a gap-filling device between the steel walers and the retaining structure to save construction costs and improve construction efficiency. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the present invention provides a gap filling device for steel walers and enclosure structures.
[0005] The present invention provides a gap-filling device for steel walers and enclosure structures, which adopts the following technical solution:
[0006] A gap-filling device between a steel waler and an enclosure structure includes an installation frame and a template. The installation frame includes two installation plates arranged symmetrically at the top and bottom. The steel waler is located between the two installation plates. Connecting bolts are vertically arranged on the left and right sides of the steel waler. The ends of the connecting bolts pass through the installation plates and are fixed by connecting nuts. A template is fitted on the connecting bolts near the construction piles. The template is located between the bottom surface of the steel waler and the top surface of the installation plate below. The shape of the template is adapted to the shape of the area enclosed by two adjacent construction piles.
[0007] By adopting the above technical solution, the template is fixed by an easy-to-install mounting frame. The template serves as the bottom formwork for pouring concrete, while the outer walls of the piles and steel walers serve as the side formwork. Concrete can then be poured into the area enclosed by the bottom and side formwork. This device has a simple structure, is easy to install, and has a low cost. It can improve construction efficiency and reduce construction costs while completing the pouring of joint-filling concrete.
[0008] Optionally, a steel bracket is fixed to the hot-rolled H-beam located inside the pile, and a steel waler is supported on top of the steel bracket.
[0009] Optionally, the steel support is vertically fixed to the steel waler, and a stiffening plate is also fixed between the steel support and the steel waler. A lifting lug is fixed to the hot-rolled H-beam, which is located above the steel waler. A steel strand connects the lifting lug to the steel support.
[0010] By adopting the above technical solutions, the stability of the steel support was improved.
[0011] Optionally, the mounting plate can be made of angle steel.
[0012] By adopting the above technical solution, it is convenient to obtain materials for production.
[0013] Optionally, a round hole is provided on one side of the mounting plate, and an elongated hole is provided on the other side of the mounting plate. Baffles are provided on the left and right sides of the elongated hole, and the baffles are fixed to the mounting plate. An adjusting bolt is rotatably connected between the two baffles. A sliding tube is threaded on the adjusting bolt, and a sliding ring is slidably connected in the elongated hole. The sliding ring is fixed to the sliding tube.
[0014] By adopting the above technical solution, it is convenient to adjust and fix the position of the connecting screw according to the steel waler of different widths, so as to adapt to the steel waler of different widths.
[0015] Optionally, the sliding ring includes a support part, a connecting part, and a limiting part. The support part and the connecting part are attached to the upper and lower sides of the mounting plate, and the connecting part is inserted into the elongated hole and fixedly connected to the support part and the limiting part respectively.
[0016] By adopting the above technical solution, the support part, connecting part and limiting part cooperate with the mounting plate, so that the sliding ring can only move within the elongated hole and cannot be disengaged from the elongated hole.
[0017] Optionally, the support and connecting parts are both annular, and the limiting part is semi-circular.
[0018] By adopting the above technical solution, it is easy for the connecting screw to directly contact the steel waler, providing effective support. Attached Figure Description
[0019] Figure 1 This is a top view of the gap filling device between the steel waler and the enclosure structure according to Embodiment 1 of this utility model.
[0020] Figure 2 This is a side view of the gap filling device between the steel waler and the enclosure structure according to Embodiment 1 of this utility model.
[0021] Figure 3 This is a schematic diagram of the gap filling device between the steel waler and the enclosure structure in Embodiment 1 of this utility model.
[0022] Figure 4 This is a top view of the mounting plate of Embodiment 2 of this utility model.
[0023] Figure 5 yes Figure 4 Sectional view along the AA direction.
[0024] Explanation of reference numerals in the attached drawings: 1. Method pile; 2. Hot-rolled H-beam; 20. Lifting lug; 3. Steel bracket; 4. Steel waler; 5. Steel support; 50. Stiffening plate; 6. Steel strand; 7. Mounting frame; 70. Mounting plate; 700. Round hole; 701. Long hole; 71. Connecting bolt; 72. Connecting nut; 73. Baffle; 74. Adjusting bolt; 75. Sliding tube; 76. Sliding ring; 760. Support part; 761. Connecting part; 762. Limiting part; 8. Template. Detailed Implementation
[0025] The following combination Figures 1-5 The present invention will be described in further detail below.
[0026] This utility model discloses a gap filling device between a steel waler and an enclosure structure. Example 1
[0027] Reference Figure 1 and Figure 2 A hot-rolled H-beam 2 is inserted into the construction pile 1. A steel bracket 3 is fixed to the outer wall of the hot-rolled H-beam 2. A steel waler 4 is supported on the top of the steel bracket 3. The steel waler 4 is perpendicular to the construction pile 1 to bear the lateral load. A steel support 5 is vertically fixed to the side of the steel waler 4 away from the construction pile 1. A stiffening plate 50 is fixed between the steel support 5 and the steel waler 4. A lifting lug 20 is fixed to the outer wall of the hot-rolled H-beam 2. The lifting lug 20 is located above the steel waler 4. A steel strand 6 is connected between the lifting lug 20 and the steel support 5 to improve the stability of the steel support 5.
[0028] Reference Figures 1-3 The gap filling device between the steel waler and the enclosure structure includes multiple mounting frames 7 installed on the steel waler 4. A template 8, serving as the bottom formwork for concrete pouring, is installed on the top of each mounting frame 7. Each mounting frame 7 includes two mounting plates 70 arranged symmetrically vertically. The steel waler 4 is located between the two mounting plates 70. The length direction of the mounting plates 70 is perpendicular to the length direction of the steel waler 4. In this embodiment, the mounting plates 70 are made of angle steel. Two circular holes 700 are formed on each mounting plate 70, and the distance between the two circular holes 700 is adapted to the width of the steel waler 4.
[0029] Reference Figure 2 and Figure 3A connecting screw 71 is inserted into two corresponding circular holes 700. A connecting nut 72 is threaded onto the end of the connecting screw 71. The connection between the upper and lower mounting plates 70 is achieved by the cooperation of the connecting screw 71 and the connecting nut 72. The template 8 is fitted onto the connecting screw 71 near the construction pile 1. The shape of the template 8 is adapted to the shape of the area enclosed between two adjacent construction piles 1 to fill the space and prevent concrete from leaking during concrete pouring. The bottom surface of the template 8 is supported on the mounting plate 70, and the top surface of the template 8 is supported on the steel waler 4.
[0030] The implementation principle of Embodiment 1 of this utility model is as follows: After the steel waler 4 is installed, the two mounting plates 70 in the mounting frame 7 are placed on the upper and lower sides of the steel waler 4 respectively, and the template 8 is placed simultaneously. Then, the connecting bolts 71 are inserted and fixed with the connecting nuts 72. The template 8 serves as the bottom formwork for pouring concrete, and the outer wall of the method pile 1 and the outer wall of the steel waler 4 serve as the side formwork for pouring concrete. Concrete can then be poured into the area enclosed by the bottom formwork and the side formwork. This device has a simple structure, is easy to install, and has a low cost. It can improve construction efficiency and reduce construction costs while completing the pouring of joint filling concrete. Example 2
[0031] Reference Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that, in this embodiment, a circular hole 700 is opened on one side of the mounting plate 70, and an elongated hole 701 is opened on the other side. A baffle 73 is provided on the left and right sides of the elongated hole 701, and the baffle 73 is vertically fixed to the mounting plate 70. The baffle 73 is perpendicular to the extension direction of the elongated hole 701. An adjusting bolt 74 is rotatably connected to the baffle 73 near the circular hole 700. The adjusting bolt 74 is rotatably inserted through the other baffle 73.
[0032] Reference Figure 4 and Figure 5 A sliding tube 75 is threaded onto the adjusting bolt 74. A sliding ring 76 is slidably connected inside the elongated hole 701. The sliding ring 76 includes a support part 760, a connecting part 761, and a limiting part 762. The support part 760 is annular and fixedly connected to the sliding tube 75. The support part 760 is set against the surface of the mounting plate 70. The connecting part 761 is slidably inserted into the elongated hole 701. The connecting part 761 is annular. The limiting part 762 is fitted against the side of the mounting plate 70 away from the support part 760. The limiting part 762 is fixedly connected to the connecting part 761. The limiting part 762 is semi-circular and does not directly contact the steel waler 4. The connecting screw 71 directly contacts the steel waler 4.
[0033] The implementation principle of Embodiment 2 of this utility model is as follows: Based on the different widths of the steel walers 4, rotating the adjusting bolt 74 with a wrench drives the sliding tube 75 to move along the adjusting bolt 74. The sliding tube 75 drives the sliding ring 76 to move. Due to the structural limitations of the support part 760, the connecting part 761, the limiting part 762, and the mounting plate 70, the sliding ring 76 can only move along the length direction of the elongated hole 701. The connecting screw 71 is inserted into the center hole of the sliding ring 76, making the connecting screw 71 directly contact the steel waler 4. Then, the connecting screw 71 is fixed by the connecting nut 72. The above components cooperate to achieve the purpose of the mounting bracket 7 effectively adapting to steel walers 4 of different widths.
[0034] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A steel purlin and enclosure gap filling device, characterized by: The system includes an installation frame (7) and a template (8). The installation frame (7) includes two installation plates (70) arranged symmetrically at the top and bottom. The steel waler (4) is located between the two installation plates (70). The left and right sides of the steel waler (4) are respectively provided with vertical connecting screws (71). The ends of the connecting screws (71) pass through the installation plates (70) and are fixed by connecting nuts (72). The template (8) is fitted on the connecting screws (71) near the construction pile (1). The template (8) is located between the bottom surface of the steel waler (4) and the top surface of the installation plate (70) below. The shape of the template (8) is adapted to the shape of the area enclosed by the two adjacent construction piles (1).
2. The steel purlin and enclosure gap filling device of claim 1, wherein: A steel bracket (3) is fixed to a hot-rolled H-beam (2) located inside the construction pile (1), and a steel waler (4) is supported on the top of the steel bracket (3).
3. The steel purlin to envelope gap filling device of claim 2, wherein: The steel support (5) is vertically fixed to the steel waler (4), and a stiffening plate (50) is also fixed between the steel support (5) and the steel waler (4). A lifting lug (20) is fixed on the hot-rolled H-beam (2). The lifting lug (20) is located above the steel waler (4), and a steel strand (6) is connected between the lifting lug (20) and the steel support (5).
4. The steel purlin and enclosure gap filling device of claim 1, wherein: The mounting plate (70) is made of angle steel.
5. The steel purlin to envelope gap filling device according to any one of claims 1-4, wherein: A round hole (700) is provided on one side of the mounting plate (70), and an elongated hole (701) is provided on the other side of the mounting plate (70). Baffles (73) are provided on the left and right sides of the elongated hole (701). The baffles (73) are fixed to the mounting plate (70). An adjusting bolt (74) is rotatably connected between the two baffles (73). A sliding tube (75) is threaded on the adjusting bolt (74). A sliding ring (76) is slidably connected inside the elongated hole (701). The sliding ring (76) is fixedly connected to the sliding tube (75).
6. The steel purlin and enclosure gap filling device of claim 5, wherein: The sliding ring (76) includes a support part (760), a connecting part (761) and a limiting part (762). The support part (760) and the connecting part (761) are attached to the upper and lower sides of the mounting plate (70). The connecting part (761) passes through the elongated hole (701) and is fixedly connected to the support part (760) and the limiting part (762) respectively.
7. The steel purlin and enclosure gap filling device of claim 6, wherein: The support part (760) and the connecting part (761) are both annular, and the limiting part (762) is semi-circular.