Large steel mould supporting structure of triangular bracket for high side wall of subway station

Abstract

The utility model discloses a subway station high side wall triangular support large steel formwork supporting structure which comprises a full framing installed tightly attached to the side wall of a lower side wall and a foundation screw reserved at the top of the lower side wall, the top end of the full framing is flush with the top of the lower side wall, and a triangular support formwork is installed at the top of the full framing. The full framing comprises a disc buckle support, profile steel is installed above the disc buckle support, and a steel plate is laid on the profile steel. The triangular bracket template is connected with the foundation screw rod through a connecting assembly; an adjusting lever is mounted at the tail part of one end of the triangular bracket template far away from the high side wall; the foundation screw is embedded in the top of the lower side wall, so that the triangular support formwork of the high side wall can be conveniently installed when the high side wall, exceeding the triangular support formwork, of the top of the lower side wall is poured, meanwhile, the triangular support formwork is supported through the full framing, the position of the triangular support formwork is adjusted in cooperation with the adjusting lever, and the construction efficiency is improved. And the lateral pressure during high side wall pouring can be well resisted, operation is easy, and the workload is small.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, specifically to a large steel formwork support structure for a triangular bracket on a high side wall of a subway station. Background Technology

[0002] In subway station construction, triangular scaffold formwork is often used for side wall construction. This formwork consists of formwork (usually steel) and triangular frames, typically formed by connecting two triangular frames to the formwork. This method not only ensures high-quality concrete pouring but also allows for rapid turnover and high construction efficiency. The height of the side wall formwork is generally determined by the station's floor height. However, sometimes a section of the side wall is excessively high, exceeding the height of the triangular scaffold formwork. For such high side walls, after the lower part of the side wall is poured using the triangular scaffold formwork and the formwork is removed, a full-span scaffold is erected with bracing to support the formwork and resist the lateral pressure during concrete pouring. This support method requires the installation of horizontal bracing steel pipes in the middle of the full-span scaffold, which not only demands high installation quality but also involves a large workload and is inconvenient to operate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a large steel formwork support structure for the triangular bracket of the high side wall of a subway station, which can stably support the high side wall and ensure that the high side wall of the subway station can be poured with concrete using the triangular bracket formwork.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A large steel formwork support structure for a triangular bracket on a high side wall of a subway station includes a full-span bracket installed close to the lower side wall and anchor bolts pre-installed at the top of the lower side wall and evenly arranged along the top of the wall. The top of the full-span bracket is flush with the top of the lower side wall, and a triangular bracket template is installed on the top of the full-span bracket, close to the inner side wall of the high side wall. The full-span bracket includes a disc-lock bracket, with a steel section installed above it, and a steel plate laid on the steel section. The triangular bracket template and the anchor bolts are connected by a connecting component. An adjusting bar is installed at the tail end of the triangular bracket template away from the high side wall.

[0006] The aforementioned large steel formwork support structure for a triangular bracket on a high side wall of a subway station includes an anchor bolt comprising an anchoring section embedded in the lower side wall and a bolt section extending out of the lower side wall. The anchor bolt is made entirely of Φ25mm HRB335 steel. The bolt section of the anchor bolt is 700mm long and is set at a 45° angle to the ground. The anchoring length of the anchoring section embedded in the lower side wall is not less than 550mm. The spacing between adjacent anchor bolts is 250mm.

[0007] The above-mentioned large steel formwork support structure for the triangular bracket of the high side wall of a subway station includes an outer connecting rod connected to the anchor bolt. The outer end of the anchor bolt is provided with a connecting nut, and one end of the outer connecting rod is threadedly connected to the connecting nut. The outer connecting rods are connected by a pressure beam, and an outer nut for locking and limiting the pressure beam is installed on the outer connecting rod outside the pressure beam.

[0008] The above-mentioned large steel formwork support structure for the triangular bracket of the high side wall of a subway station has an outer connecting rod that is 500mm long, and the connecting nut is a Φ25 straight thread Class I connector. The outer nut is made of Q235B material.

[0009] The aforementioned triangular bracket large steel formwork support structure for the high side wall of a subway station has two pressure beams.

[0010] The above-mentioned large steel formwork support structure for the triangular bracket of the high side wall of a subway station has a top support at the top of the disc buckle bracket to support the steel section, which is an I20 I-beam.

[0011] The above-mentioned large steel formwork support structure for the triangular bracket of the high side wall of a subway station has a steel plate with a thickness of 2cm on top of the steel profile.

[0012] The above-mentioned large steel formwork support structure for the triangular bracket of the high side wall of a subway station uses a Φ40mm double-nut threaded rod, and a 10mm thick steel pad is provided at the bottom of the adjusting rod.

[0013] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0014] This utility model provides a large steel formwork support structure for a triangular bracket on a high side wall of a subway station. By pre-embedding anchor bolts at the top of the lower side wall, it is convenient to install the high side wall triangular bracket formwork when pouring the high side wall that extends beyond the top of the lower side wall. At the same time, the triangular bracket formwork is supported by a full-span scaffold, and the position of the triangular bracket formwork can be adjusted with adjusting bars. It can effectively resist the lateral pressure during the pouring of the high side wall. The operation is simple, the workload is small, and there is no need to install horizontal bracing steel pipes in the middle of the full-span scaffold. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the specific structure of this utility model.

[0016] Among them: 1. lower side wall, 2. high side wall, 3. triangular bracket formwork, 4. anchor bolt, 5. disc buckle bracket, 6. structural steel, 7. steel plate, 8. adjusting bar, 9. connecting nut, 10. external connecting rod, 11. pressure beam, 12. external nut. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] A large steel formwork support structure for the high side wall triangular bracket of a subway station, such as Figure 1 As shown, it includes a full-span support installed close to the side wall of the lower side wall 1 and anchor bolts 4 pre-installed on the top of the lower side wall 1 and evenly arranged along the top of the wall. The top of the full-span support is flush with the top of the lower side wall 1, and a triangular support template 3 is installed on the top of the full-span support, which is close to the inner side wall of the upper side wall 2.

[0019] The full-span scaffolding includes a disc-lock scaffold 5, with a steel section 6 installed above the disc-lock scaffold 5, and a steel plate 7 laid on the steel section 6. The triangular support template 3 is set on the steel plate 7.

[0020] The top of the disc buckle bracket 5 is provided with a top support for the steel section 6. The steel section 6 is made of I20 I-beams, and the steel plate 7 laid on top of the steel section 6 is 2cm thick.

[0021] The anchor bolt 4 includes an anchoring section embedded in the lower side wall 1 and a bolt section extending out of the lower side wall 1. The anchor bolt 4 is made of Φ25mm HRB335 steel. The length of the bolt section is 700mm. The spacing between adjacent anchor bolts 4 is 250mm. The bolt section of the anchor bolt 4 is set at 45° with the ground. The anchoring length of the anchoring section embedded in the lower side wall 1 is not less than 550mm.

[0022] The triangular bracket template 3 and the anchor bolt 4 are connected by a connecting assembly. The connecting assembly includes an outer connecting rod 10 connected to the anchor bolt 4. The outer end of the anchor bolt 4 is provided with a connecting nut 9. One end of the outer connecting rod 10 is threadedly connected to the connecting nut 9. The outer connecting rod 10 is 500mm long and is made of Φ25mm HRB335 steel. The connecting nut 9 is a Φ25 straight thread Class I connector.

[0023] The outer connecting rods 10 are connected by a pressure beam 11. There are two pressure beams 11. The outer connecting rods 10 outside the pressure beam 11 are equipped with an outer nut 12 for locking and limiting the pressure beam 11. The outer nut 12 is made of Q235B material.

[0024] An adjusting bar 8 is installed at one end of the triangular support formwork 3 away from the high side wall 2. The adjusting bar 8 is installed on the steel plate 7. The adjusting bar 8 is a Φ40mm double nut threaded rod. A 10mm thick steel pad is set at the bottom of the adjusting bar 8. The flatness of the steel film in the triangular support formwork is adjusted by the adjusting bar 8, thereby ensuring the quality and accuracy of the high side wall 2 pouring construction.

[0025] The installation method of this utility model is as follows:

[0026] First, when pouring the lower side wall, pre-embed anchor bolts 4 at the top. After pouring, remove the triangular support formwork and erect a full-span support according to the requirements for the erection of the station roof (middle slab) support, with the height reaching the top of the lower side wall 1.

[0027] Specifically, first, a disc-lock scaffold 5 is erected, which is set close to the side wall of the lower side wall 1. Then, the top support and the steel section 6 are installed. A 2cm thick steel plate 7 is laid on top of the steel section 6 as a platform for installing the high side wall triangular support formwork.

[0028] Then, the triangular bracket template 3 is installed on the upper part of the steel plate 7, and the pre-embedded anchor bolts 4 are connected and fixed to the triangular bracket template 3 by connecting nuts 9, outer connecting rods 10, outer nuts 12 and pressure beams 11.

[0029] Finally, adjusting bars 8 are installed at the tail of each triangular support formwork 3 and supported by steel plates 7. The triangular support formwork 3 is then fixed using the adjusting bars 8, after which the high sidewall concrete can be poured.

[0030] This utility model provides a large steel formwork support structure for a triangular bracket on a high side wall of a subway station. By pre-embedding anchor bolts at the top of the lower side wall, it is convenient to install the high side wall triangular bracket formwork when pouring the high side wall that extends beyond the top of the lower side wall. At the same time, the triangular bracket formwork is supported by a full-span scaffold, and the position of the triangular bracket formwork can be adjusted with adjusting bars. It can effectively resist the lateral pressure during the pouring of the high side wall. The operation is simple, the workload is small, and there is no need to install horizontal bracing steel pipes in the middle of the full-span scaffold.

Claims

1. A large steel formwork support structure for a triangular bracket on a high side wall of a subway station, characterized in that: The system includes a full-span support installed close to the lower side wall (1) and anchor bolts (4) pre-installed on the top of the lower side wall (1) and evenly arranged along the top of the wall. The top of the full-span support is flush with the top of the lower side wall (1). A triangular support template (3) is installed on the top of the full-span support, which is close to the inner side wall of the upper side wall (2). The full-span support includes a disc buckle support (5). A steel section (6) is installed above the disc buckle support (5), and a steel plate (7) is laid on the steel section (6). The triangular support template (3) is connected to the anchor bolts (4) by a connecting component. An adjusting bar (8) is installed at the tail end of the triangular support template (3) away from the upper side wall (2).

2. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 1, characterized in that: The anchor bolt (4) includes an anchoring section embedded in the lower side wall (1) and a bolt section extending out of the lower side wall (1). The anchor bolt (4) is made of Φ25mm HRB335 steel. The bolt section of the anchor bolt (4) is 700mm long and is set at 45° to the ground. The anchoring length of the anchoring section of the anchor bolt (4) embedded in the lower side wall (1) is not less than 550mm. The spacing between adjacent anchor bolts (4) is 250mm.

3. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 1, characterized in that: The connecting assembly includes an outer connecting rod (10) connected to the anchor bolt (4). The outer end of the anchor bolt (4) is provided with a connecting nut (9). One end of the outer connecting rod (10) is threadedly connected to the connecting nut (9). The outer connecting rods (10) are connected to each other through a pressure beam (11). An outer nut (12) for locking and limiting the pressure beam (11) is installed on the outer connecting rod (10) outside the pressure beam (11).

4. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 3, characterized in that: The outer connecting rod (10) is 500mm long, the connecting nut (9) is a Φ25 straight thread Class I connector, and the outer nut (12) is a Q235B material nut.

5. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 3, characterized in that: The number of the pressure beams (11) is 2.

6. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 1, characterized in that: The top of the disc buckle bracket (5) is provided with a top support for the steel section (6), which is made of I20 I-beam.

7. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 1, characterized in that: The thickness of the steel plate (7) laid on top of the steel section (6) is 2cm.

8. The large steel formwork support structure for the triangular bracket of a high side wall of a subway station according to claim 1, characterized in that: The adjusting lever (8) is a Φ40mm double nut threaded rod, and a 10mm thick steel pad is provided at the bottom of the adjusting lever (8).

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