Fixing structure for prefabricated diaphragm wall assembly construction

Abstract

The utility model discloses a fixing structure for prefabricated diaphragm wall assembly construction, which comprises a profile steel bearing base, the profile steel bearing base stretches across two sides of a guide wall, the prefabricated diaphragm wall is assembled in the guide wall, an internal thread sleeve is arranged at the top of the prefabricated diaphragm wall, one end of a thread steel bar is connected with the internal thread sleeve, and the other end of the thread steel bar is connected with a screw. And the other end of the deformed steel bar is connected with the profile steel bearing base, so that the prefabricated diaphragm wall is fixed. The prefabricated underground diaphragm wall vertical fixing device is formed by assembling standard steel parts, and is simple in structure and convenient to install. The screw-thread steel bar is used for hanging and fixing, the top surface of the prefabricated diaphragm wall is leveled and the vertical elevation is adjusted through the nut, and the prefabricated diaphragm wall is simple, fast, stable and reliable. The deformed steel bar, the hexagonal nut, the steel base plate and the section steel bearing base can be recycled, so that the manufacturing cost is saved.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, and in particular relates to a fixing structure used for the assembly construction of a prefabricated ground-connected wall. Background Art

[0002] In recent years, my country has actively developed prefabricated buildings, and the construction of prefabricated subway stations has made great progress. In my country's urban rail transit construction, underground continuous walls are the most widely used form of foundation pit support. Compared with traditional cast-in-place ground-connected walls, prefabricated ground-connected walls are produced in factories, with the characteristics of controllable quality, low environmental pollution and fast construction speed, which is in line with the development direction of green construction in the future.

[0003] The construction of prefabricated ground-anchored walls mainly includes trenching, hoisting and assembly, temporary ground fixation, and trench wall gap filling. After the hoisting and assembly are in place, temporary ground fixation measures need to be adopted in a timely manner.

[0004] However, there is currently no better fixing method that can be constructed simply and quickly. Therefore, it is necessary to develop a fixing structure for the assembly construction of prefabricated ground-connected walls based on actual on-site construction, which can achieve simple structure, reliable force, and rapid construction, and can ensure accurate leveling and height adjustment of the wall top, and can be recycled to reduce construction costs. Summary of the invention

[0005] The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a fixing structure used for the assembly construction of prefabricated ground-connected walls.

[0006] The technical solution of the utility model is: a fixed structure for the assembly construction of prefabricated ground-connected walls, including a steel bearing base, the steel bearing base spanning across two sides of a guide wall, a prefabricated ground-connected wall assembled in the guide wall, an internally threaded sleeve provided on the top of the prefabricated ground-connected wall, one end of a threaded steel rod connected to the internally threaded sleeve, and the other end of the threaded steel rod connected to the steel bearing base, thereby realizing the fixation of the prefabricated ground-connected wall.

[0007] Furthermore, the threaded steel rod is a double-headed threaded steel rod, and the threaded steel rod is fixed to the steel support base and the prefabricated ground connection wall by means of threads.

[0008] Furthermore, a steel plate is provided on the top of the steel support base, a through hole is formed in the steel plate, and the upper threaded section of the threaded steel rod passes through the through hole and is fixed by a hexagonal nut.

[0009] Furthermore, an internal threaded sleeve is provided at the top of the prefabricated ground connecting wall, the opening of the internal threaded sleeve faces upward, and the lower threaded section of the threaded steel rod is screwed into the internal thread of the internal threaded sleeve.

[0010] Furthermore, a double-web H-shaped steel support is provided at the upper end of the guide wall, and the double-web H-shaped steel support is arranged relatively on both sides of the guide wall.

[0011] Furthermore, the steel bearing base is arranged on a double-web H-shaped steel support, thereby reducing the pressure of the steel bearing base on the guide wall.

[0012] Furthermore, the steel bearing base includes a base frame, and a double-web H-shaped steel cross arm is arranged on the base frame.

[0013] Furthermore, the base frame is formed by welding square steel pipes, and the base frame is in the form of a frame with a hollow middle portion.

[0014] The beneficial effects of the utility model are as follows:

[0015] The prefabricated vertical fixing devices of the ground-connected wall in the utility model are all assembled by using standard steel parts, and have a simple structure and are easy to install.

[0016] The utility model adopts threaded steel rods for suspension and fixing, and uses nuts to level the top surface of the prefabricated ground-connected wall and adjust the vertical elevation, which is simple, fast, stable and reliable.

[0017] The threaded steel rod, the hexagonal nut, the steel pad and the steel bearing base of the utility model can be recycled, thus saving the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 It is a plan view of the utility model;

[0020] Figure 3 It is a structural diagram of the threaded steel rod in the utility model;

[0021] Figure 4 It is a structural diagram of the internal thread sleeve in the utility model;

[0022] Figure 5 It is a plan view of the medium-sized steel bearing base of the utility model;

[0023] Figure 6 It is a cross-sectional view of the medium-sized steel bearing base of the utility model;

[0024] Figure 7 It is a schematic diagram of fixing the threaded steel rod in the utility model;

[0025] Figure 8 It is a structural diagram of a double-web H-shaped steel support in the utility model;

[0026] in:

[0027] 1 Threaded steel rod 2 Internal thread sleeve

[0028] 3 Square steel tube 4 Double web H-shaped steel cross arm

[0029] 5 Steel plate 6 Hexagonal nut

[0030] 7 Double web H-beam support. DETAILED DESCRIPTION

[0031] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0032] like Figures 1 to 8 As shown, a fixing structure for the assembly construction of a prefabricated ground-connected wall comprises a steel bearing base, wherein the steel bearing base spans across two sides of a guide wall, a prefabricated ground-connected wall is assembled inside the guide wall, an internally threaded sleeve 2 is arranged on the top of the prefabricated ground-connected wall, one end of a threaded steel rod 1 is connected to the internally threaded sleeve 2, and the other end of the threaded steel rod 1 is connected to the steel bearing base, so as to fix the prefabricated ground-connected wall.

[0033] The threaded steel rod 1 is a double-ended threaded steel rod, and the threaded steel rod 1 is fixed to the steel bearing base and the prefabricated ground connecting wall by means of threads.

[0034] A steel plate 5 is provided on the top of the steel bearing base. A through hole is formed in the steel plate 5. The upper threaded section of the threaded steel rod 1 passes through the through hole and is then screwed on a hexagonal nut 6 for fixing.

[0035] An internal threaded sleeve 2 is provided on the top of the prefabricated ground connecting wall. The opening of the internal threaded sleeve 2 faces upward, and the lower threaded section of the threaded steel rod 1 is screwed into the internal thread of the internal threaded sleeve 2 .

[0036] A double-web H-shaped steel support 7 is provided on the upper end of the guide wall, and the double-web H-shaped steel support 7 is arranged opposite to each other on both sides of the guide wall.

[0037] The steel bearing base is arranged on the double-web H-shaped steel support 7 to reduce the pressure of the steel bearing base on the guide wall.

[0038] The steel bearing base comprises a base frame, on which a double-web H-shaped steel cross arm 4 is arranged.

[0039] The base frame is formed by welding square steel pipes 3, and the base frame is a frame form with a hollow middle portion.

[0040] Specifically, the steel pad 5 is arranged on the double-web H-shaped steel crossarm 4. The threaded steel rod 1 passes between the double-web H-shaped steel crossarms 4, and the double-web H-shaped steel crossarms 4 are used for suspension bearing.

[0041] More specifically, at least two steel pads 5 are arranged on each set of double-web H-shaped steel cross arms 4 , and a threaded steel rod 1 is arranged in each steel pad 5 .

[0042] Specifically, the internal threaded sleeve 2 is anchored in the prefabricated ground-connected wall through horizontal steel bars and vertical steel bars.

[0043] Specifically, the steel support base is in a four-shaped shape, and the steel support base includes a base frame, which is composed of square steel pipes 3 assembled and welded. Two groups of double-web H-shaped steel cross arms 4 are arranged on the base frame for hanging loads. The spacing between the two groups of double-web H-shaped steel cross arms 4 is greater than the diameter of the threaded steel rod 1.

[0044] Specifically, Figure 3 As shown, the threaded steel rod 1 is a solid rod, and both ends of the threaded steel rod 1 form external threads for bidirectional fixation.

[0045] Specifically, Figure 4 As shown, the internal thread sleeve 2 is stepped, and the internal thread sleeve 2 is hollow to form an internal thread, and the internal thread is connected to the threaded steel rod 1.

[0046] Specifically, an external thread is formed on the outer wall of the internally threaded sleeve 2, and the external thread of the internally threaded sleeve 2 enhances the anchoring force between the internally threaded sleeve 2 and the prefabricated ground-connected wall concrete.

[0047] Specifically, Figure 5 As shown, the base frame is also provided with a square steel pipe 3 in the middle, and the square steel pipe 3 in the middle is connected to the double-web H-shaped steel cross arm 4, and the double-web H-shaped steel cross arm 4 can be reinforced by the square steel pipe 3 in the middle.

[0048] Specifically, Figure 6 As shown, the double-web H-shaped steel cross arm 4 includes a top plate and a bottom plate, the top plate and the bottom plate are parallel, two webs are arranged between the top plate and the bottom plate, the webs are perpendicular to the top plate and the bottom plate, and the two webs are parallel.

[0049] Specifically, the double-web H-shaped steel support 7 has the same structure as the double-web H-shaped steel cross arm 4 .

[0050] Specifically, the through hole in the steel backing plate 5 is larger than the diameter of the threaded steel rod 1 and smaller than the diameter of the circumscribed circle of the hexagonal nut 6 .

[0051] The construction steps of this utility model are as follows:

[0052] S1: When the ground-connected wall is prefabricated, an internal threaded sleeve 2 is embedded in the top of the wall and anchored with steel bars;

[0053] S2: After the ground-connected wall is grooved, double-web H-shaped steel supports 7 are installed on both sides of the guide wall;

[0054] S3: Use a crane to hoist and assemble the prefabricated ground-connected wall;

[0055] S4: After the prefabricated wall is put in place, the threaded steel rod 1 is installed, and the threaded steel rod 1 is connected to the pre-buried internal threaded sleeve 2 on the top of the wall;

[0056] S5: Install the steel bearing base (avoid the lifting position), connect the threaded steel rod 1 with the hexagonal nut 6 and the steel pad 5 to achieve preliminary fixation;

[0057] S6: Use hexagonal nut 6 to accurately level and heighten the top surface of the wall.

[0058] The prefabricated vertical fixing devices of the ground-connected wall in the utility model are all assembled by using standard steel parts, and have a simple structure and are easy to install.

[0059] The utility model adopts threaded steel rods for suspension and fixing, and uses nuts to level the top surface of the prefabricated ground-connected wall and adjust the vertical elevation, which is simple, fast, stable and reliable.

[0060] The threaded steel rod, the hexagonal nut, the steel pad and the steel bearing base of the utility model can be recycled, thus saving the construction cost.

Claims

1. A fixed structure for the assembly and construction of a prefabricated ground-connected wall, characterized in that: The invention comprises a steel bearing base, the steel bearing base spans across two sides of a guide wall, a prefabricated ground connection wall is assembled inside the guide wall, an internally threaded sleeve (2) is arranged on the top of the prefabricated ground connection wall, one end of a threaded steel rod (1) is connected to the internally threaded sleeve (2), and the other end of the threaded steel rod (1) is connected to the steel bearing base, so as to fix the prefabricated ground connection wall.

2. A fixed structure for prefabricated ground-connected wall assembly construction according to claim 1, characterized in that: The threaded steel rod (1) is a double-ended threaded steel rod, and the threaded steel rod (1) is fixed to the steel support base and the prefabricated ground connection wall by means of threads.

3. A fixed structure for prefabricated ground-connected wall assembly construction according to claim 2, characterized in that: A steel pad (5) is arranged on the top of the steel bearing base, a through hole is formed in the steel pad (5), and the upper threaded section of the threaded steel rod (1) passes through the through hole and is then screwed with a hexagonal nut (6) for fixation.

4. A fixed structure for prefabricated ground-connected wall assembly construction according to claim 2, characterized in that: The opening of the internally threaded sleeve (2) faces upward, and the lower threaded section of the threaded steel rod (1) is screwed into the internal thread of the internally threaded sleeve (2).

5. The fixing structure for prefabricated ground-connected wall assembly construction according to claim 1 is characterized in that: A double-web H-shaped steel support (7) is provided at the upper end of the guide wall, and the double-web H-shaped steel support (7) is arranged opposite to each other on both sides of the guide wall.

6. A fixed structure for prefabricated ground-connected wall assembly construction according to claim 5, characterized in that: The steel bearing base is arranged on the double-web H-shaped steel support (7), so as to reduce the pressure of the steel bearing base on the guide wall.

7. The fixing structure for prefabricated ground-connected wall assembly construction according to claim 1 is characterized by: The steel bearing base comprises a base frame, on which a double-web H-shaped steel cross arm (4) is arranged.

8. A fixed structure for prefabricated ground-connected wall assembly construction according to claim 7, characterized in that: The base frame is formed by welding square steel pipes (3), and the base frame is in the form of a frame with a hollow middle portion.

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