Construction platform for top of deck type concrete filled steel tube arch bridge stand column

Abstract

The utility model discloses a deck type concrete filled steel tube arch bridge stand column top construction platform which comprises a construction platform framework, the construction platform framework is fixed on a stand column cross beam, close to the top, of an arch bridge stand column, and the construction platform framework comprises a bottom support and a set of inclined supports. The bottom support is fixed on a stand column cross beam, close to the top, of an arch bridge stand column, the pedal support is arranged above the bottom support, the pedal is fixed on the pedal support, one end of the inclined support penetrates through the stand column cross beam and is connected with the bottom support through the main body connecting piece, and the other end of the inclined support is connected with the pedal support. And the welding problem of the top of the stand column and the top of the cover beam is solved, and the method is suitable for splicing construction of a concrete-filled steel tube arch bridge stand column top platform.

Description

Technical Field

[0001] The utility model relates to the technical field of steel tube concrete arch bridge construction, in particular to a construction platform for the top of a support type steel tube concrete arch bridge column. Background Art

[0002] After the columns of a top-decker steel tube concrete arch bridge are constructed, the cap beams need to be hoisted and installed. The embedded steel plates at the bottom of each cap beam need to be welded to the columns, necessitating an operating platform on top of the columns. The platform, erected at a height of 40 meters, requires sufficient load-bearing capacity and easy installation and disassembly. Conventional aerial operating platforms are often simply tied to the pedals for construction, which poses construction safety risks. Therefore, further improvements are needed to improve the ease of installation and disassembly of the platform atop the columns to enhance construction safety.

[0003] To this end, the utility model proposes a construction platform for the top of a column of a top-supported steel tube concrete arch bridge, which is used to solve the welding problem between the top of the column and the top of the cap beam. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a construction platform for the top of the column of the top-supported steel tube concrete arch bridge, which is convenient for welding the embedded steel plate at the bottom of the cap beam to the column and has high safety.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A construction platform for the top of a top-supported steel tube concrete arch bridge column, comprising a construction platform frame, which is fixed to a column crossbeam near the top of the arch bridge column. The construction platform frame comprises a bottom support and a group of oblique supports, the bottom support being fixed to the column crossbeam near the top of the arch bridge column, a pedal support being provided above the bottom support, a pedal being fixed to the pedal support, one end of the oblique support passing through the column crossbeam and connected to the bottom support via a main connecting piece, and the other end thereof being connected to the pedal support.

[0007] Furthermore, the pedal support is composed of a group of transverse supports and a group of longitudinal supports, the transverse supports and the longitudinal supports are connected by a main body connector, and the transverse supports and the longitudinal supports are all connected to the diagonal supports by a main body connector.

[0008] Furthermore, the main connecting piece is a snap ring.

[0009] Furthermore, the bottom support is composed of a group of circular steel pipes connected end to end, and the bottom support is fixed to the column beam by clamps and temporary welding.

[0010] Furthermore, the oblique supports, longitudinal supports and transverse supports are all circular steel pipes.

[0011] Furthermore, top protection is provided around the pedal.

[0012] Compared with the prior art, the technical solution of the utility model is as follows:

[0013] 1) The utility model provides a construction platform skeleton on the cross beam of the arch bridge column near the top. The construction platform skeleton includes a bottom support and a group of oblique supports. The bottom support is fixed to the cross beam of the column near the top. A pedal support is provided above the bottom support. A pedal is fixed to the pedal support. This facilitates welding construction around the top of the column, solving the welding problem between the top of the column and the top of the cap beam. The utility model is suitable for the assembly construction of the top platform of the steel tube concrete arch bridge column.

[0014] 2) The pedal support of the utility model is composed of a set of transverse supports and a set of longitudinal supports. The transverse supports and the longitudinal supports are connected by main connecting pieces. The transverse supports and the longitudinal supports are also connected to the diagonal supports by main connecting pieces. The diagonal supports indirectly fix the pedal support to the column beam.

[0015] 3) Compared with the traditional arch bridge column construction platform, the construction platform of the utility model avoids the use of cumbersome vertical supports to support the pedals, and supports them through a set of diagonal supports, which is safe, firm and simple to operate.

[0016] 4) The platform body of this utility model is assembled into a whole by steel pipes, and is installed on the column beams with the main connecting parts. It has the characteristics of easy disassembly, which effectively reduces the construction period and improves the safety of operators on the platform.

[0017] 5) The platform of this utility model can be assembled completely on site and hoisted as a whole to the top of the column for installation, which is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the cross section of the arch bridge of the utility model;

[0019] Figure 2 This is a partial front view of the arch bridge of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the transverse support and the longitudinal support of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the bottom support and the oblique support of the utility model.

[0022] In the figure: 1. Bottom support; 2. Diagonal support; 3. Main body connection; 4. Top protection; 5. Longitudinal support; 6. Pedal; 7. Column beam; 8. Horizontal support. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0024] Please refer to Figure 1-4 A construction platform for the top of a steel tube concrete arch bridge column. The construction platform skeleton is fixed to the column crossbeam 7 near the top of the arch bridge column. The construction platform skeleton includes a bottom support 1 and a set of diagonal supports 2. The bottom support 1 is fixed to the column crossbeam 7 near the top. A pedal support is provided above the bottom support 1. A pedal 6 is fixed to the pedal support to facilitate welding construction around the top of the column, solving the welding problem between the top of the column and the top of the cap beam. One end of the diagonal support 2 passes through the column crossbeam 7 and is connected to the bottom support 1 through the main connecting piece 3. The other end is connected to the pedal support.

[0025] The step support consists of a set of transverse supports 8 and a set of longitudinal supports 5. The transverse supports 8 are connected to the longitudinal supports 5 via the main connector 3. Both the transverse supports 8 and the longitudinal supports 5 are connected to the diagonal supports 2 via the main connector 3. The longitudinal supports 5 and transverse supports 8 must extend 100 cm from the center of the steel pipe to ensure that construction workers can surround them for welding. The step 6 is fixed on the longitudinal supports 5 and transverse supports 8 to form a construction platform.

[0026] Compared with the traditional arch bridge column construction platform, the construction platform of the utility model avoids the use of cumbersome height-direction longitudinal supports to support the pedals, and supports the pedals through a set of oblique supports 2, which is safe, firm and has simple procedures.

[0027] Pedal 6 needs to cut out the circular hole of column in advance, and pedal 6 is connected by fastening connector with longitudinal support 5, transverse support 8. In the present embodiment, fastening connector is bolt, and pedal 6 is the bamboo plywood of thickness 2cm.

[0028] In this embodiment, the main connecting member 3 is a snap ring and needs to be tightened by an electric machine.

[0029] The bottom support 1 is made of a set of circular steel tubes connected end to end, and the bottom support 1 is fixed to the column beam 7 by clamps and temporary welding. The bottom support 1, diagonal support 2, longitudinal support 5 and transverse support 8 are all circular steel tubes.

[0030] The pedal 6 is surrounded by a top protection 4 to ensure the safety of the construction workers.

[0031] The construction platform on top of the column can be fully assembled directly on site, and then can be hoisted and disassembled as a whole by a cable crane, which is easy to operate and can be reused, avoiding large-scale and overall cutting.

Claims

1. A construction platform for the top of a deck steel tube concrete arch bridge column, characterized in that The invention comprises a construction platform skeleton, wherein the construction platform skeleton is fixed on a column cross beam (7) near the top of an arch bridge column, and the construction platform skeleton comprises a bottom support (1) and a group of oblique supports (2). The bottom support (1) is fixed on a column cross beam (7) near the top of an arch bridge column, a pedal support is provided above the bottom support (1), and a pedal (6) is fixed on the pedal support. One end of the oblique support (2) passes through the column cross beam (7) and is connected to the bottom support (1) through a main connecting member (3), and the other end is connected to the pedal support.

2. A construction platform for the top of a deck steel tube concrete arch bridge column according to claim 1, characterized in that The pedal support is composed of a group of transverse supports (8) and a group of longitudinal supports (5), wherein the transverse supports (8) and the longitudinal supports (5) are connected via a main connecting member (3), and the transverse supports (8) and the longitudinal supports (5) are connected to the oblique supports (2) via the main connecting member (3).

3. The construction platform for the top of a deck steel tube concrete arch bridge column according to claim 2, characterized in that The main connecting piece (3) is a snap ring.

4. The construction platform for the top of a deck steel tube concrete arch bridge column according to claim 1, characterized in that The bottom support (1) is composed of a group of circular steel pipes connected end to end, and the bottom support (1) is fixed to the column beam (7) by means of a clamp and temporary welding.

5. The construction platform for the top of a deck steel tube concrete arch bridge column according to claim 2, characterized in that The oblique support (2), longitudinal support (5) and transverse support (8) are all circular steel pipes.

6. The construction platform for the top of a deck steel tube concrete arch bridge column according to claim 1, characterized in that The pedal (6) is provided with top protection (4) around it.

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