CN211498497U

CN211498497U - Operation platform in hollow pier

Info

Publication number: CN211498497U
Application number: CN201921910029.8U
Authority: CN
Inventors: 王圣; 刘德安; 陈敏; 陈彪; 陈辉; 邹伟; 杨海龙
Original assignee: First Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: First Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-09-15
Anticipated expiration: 2029-11-07

Abstract

The utility model relates to the field of bridge building construction, in particular to an operation platform in a hollow pier, which comprises a platform framework and a reinforcing mesh sheet laid on the framework platform, wherein the platform framework comprises a rectangular framework and arc frameworks fixedly connected to the two sides of the rectangular framework, the rectangular framework is provided with at least two pull rods, each pull rod comprises a round pipe and a pull rod, and one end of each pull rod is movably connected in the round pipe; the arc skeleton includes a main skeleton, two side skeletons and a front end skeleton, and the main skeleton is rectangle and tail end and rectangle skeleton fixed connection, and the side skeleton articulates respectively in the both sides of main skeleton, and the front end skeleton articulates in the front end of main skeleton. The utility model discloses a pull pole and folding arc skeleton make operation platform can change along with the change of hollow pier inner platform cross-section, do not need repeated dismouting at each section construction station.

Description

Operation platform in hollow pier

Technical Field

The utility model relates to a bridge building construction field, concretely relates to operation platform in hollow mound.

Background

In the process of paving high-speed rails, high-speed roads and the like, bridges are often required to be erected, and the bridge piers of the bridges are generally cast in a segmented mode. And erecting an operation platform for multiple times inside the hollow pier for pouring the hollow pier to perform reinforcement binding operation, and performing problem troubleshooting and maintenance on the poured part of the pier. Because the cross-section in the hollow pier is round-ended and the size of the cross-section is gradually changed, the reinforcing steel bar binding operation of each layer needs to be rebuilt after the operation platform is dismantled, and a large amount of working hours need to be consumed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that exists, the utility model discloses a can adapt to hollow mound internal cross section and change to operation platform in the hollow mound that does not need repeated dismouting, its concrete technical scheme as follows:

an operation platform in a hollow pier comprises a platform framework and a reinforcing mesh laid on the framework platform, wherein the platform framework comprises a rectangular framework and arc frameworks fixedly connected to two sides of the rectangular framework, the rectangular framework comprises a group of long steel pipes parallel to each other and a group of short steel pipes parallel to each other, the long steel pipes are respectively and fixedly connected with the short steel pipes, at least two pull rods are arranged on the rectangular framework, each pull rod comprises a round pipe and a pull rod, two ends of each round pipe are respectively and fixedly connected to the long steel pipes parallel to each other, and one end of each pull rod is movably connected in the round pipe; the arc skeleton includes a main skeleton, two side skeletons and a front end skeleton, the tail end and the rectangle skeleton fixed connection of main skeleton, the side skeleton articulates respectively in the both sides of main skeleton, the front end skeleton articulates in the front end of main skeleton. Through the pull rod and the arc-shaped framework which can be folded, the size of the platform framework can be changed, and the change of the size of the inner section of the hollow pier is adapted.

Further, fixedly connected with horizontal main steel pipe on the platform skeleton, the one end of main steel pipe and the main skeleton fixed connection of platform skeleton one side, the other end and the main skeleton fixed connection of platform skeleton opposite side, and main steel pipe is parallel with long steel pipe. And supporting force is provided for the reinforcing mesh above the platform framework.

Furthermore, the number of the main steel pipes is two, slide rails are arranged below the main steel pipes, and the main steel pipes are hoisted with operation hanging baskets through the slide rails below the main steel pipes.

Furthermore, an operation platform window is formed in the rectangular framework, and a window plate is hinged to one side of the operation platform window. Make things convenient for the staff to carry out problem investigation and maintenance to the pier that the lower floor was pour through the operation hanging flower basket.

Furthermore, a limiting block is fixedly connected to the free end of the pull rod. The operation platform is fixed by clamping the limiting blocks on the straps of the inner die.

Furthermore, bolt through holes with equal intervals are formed in the round pipe, bolt holes with equal intervals are formed in the pull rod, and the round pipe and the pull rod are fixed through bolts. The telescopic amount of the drawing rod is effectively controlled.

Has the advantages that: the utility model can change the size of the framework through the pull rod and the arc-shaped framework which can be overturned, thereby adapting to the change of the internal section area of the hollow pier, and the operation platform does not need to be completely disassembled during each steel bar binding operation, the operation platform is directly hoisted, and then the operation platform is limited by the pull rod; and the pier that finishes pouring of lower floor can be overhauld through the hanging flower basket.

Drawings

Fig. 1 is a schematic top view of a platform frame according to an embodiment of the present invention;

fig. 2 is a schematic front view of a platform frame according to an embodiment of the present invention;

fig. 3 is a schematic view of a part of the structure of the drawing rod according to the embodiment of the present invention;

reference numerals: 1-a rectangular framework; 2-arc framework; 3-long steel pipe; 4-short steel pipe; 5-a drawing rod; 6-main skeleton; 7-side skeleton; 8-front end skeleton; 9-a hinge; 10-main steel pipe; 11-a work platform window; 12-a window panel; 13-operating the hanging basket; 14-round tube; 15-a pull rod; 16-bolt; 17-a limiting block.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

According to the figure 1, the hollow pier internal operation platform comprises a platform framework and a reinforcing mesh (not shown in the figure), wherein the platform framework comprises a rectangular framework 1 and two arc frameworks 2, the two arc frameworks 2 are respectively welded on two sides of the rectangular framework 1, the rectangular framework 1 comprises two parallel long steel pipes 3 and two parallel short steel pipes 4, the long steel pipes 3 and the short steel pipes 4 are mutually welded to form the rectangular framework 1, two pull rods 5 are respectively arranged on each of two sides of the rectangular framework 1 and each of two sides of the arc frameworks 2, two pull rods 5 are also arranged in the middle of the rectangular framework 1, each pull rod 5 comprises a circular pipe 14 and a pull rod 15, one end of each pull rod 15 is movably connected in the circular pipe 14, and the other end of each pull rod is provided with a limiting block 17 and is clamped on a strap of an internal mold through the limiting block 17; arc skeleton 2 includes a main frame 6, two side frameworks 7 and a front end skeleton 8, the tail end and the welding of rectangle skeleton 1 of main frame 6, the front end of main frame 6 and front end skeleton 8 pass through hinge 9 and articulate, the both sides of main frame 6 are articulated with side framework 7 through hinge 9 respectively. Rectangular skeleton 1 has many horizontal and fore-and-aft reinforcing bars (not seen in the figure) with the welding respectively on the arc skeleton 2, makes things convenient for laying of reinforcing bar net piece.

Fixedly connected with two horizontal main steel pipes 10 on the platform skeleton, the one end of main steel pipe 10 and the main skeleton 6 fixed connection of platform skeleton one side, the other end and the main skeleton 6 fixed connection of platform skeleton opposite side, and main steel pipe 10 is parallel with long steel pipe 3. The slide rail is installed to the below of main steel pipe 10 to main steel pipe 10 has operation hanging flower basket 13 through the mobilizable hoist and mount of slide rail, operation platform window 11 has been seted up on the rectangular skeleton 1, one side of operation platform window 11 is connected with luffer boards 12 that can overturn through hinge 9.

As shown in fig. 3, bolt through holes with equal intervals are formed in the circular tube 14, bolt holes with equal intervals are formed in the pull rod 15, and the circular tube 14 and the pull rod 15 are fixed by bolts 16.

The installation process of the operation platform comprises the following steps: after the construction of the previous stage of the hollow pier is completed, the whole operation platform is hoisted by using the electric hoist, the bolt 16 on the pull rod 5 is taken down after the limiting block 17 is separated from the strap of the inner mold, so that the pull rod 5 is shortened, the pull rod 5 is extended again until the operation platform is hoisted to the next construction station, the limiting block 17 is clamped on the strap of the inner mold of the next construction station, and then the bolt 16 is locked; when the section area of the arc-shaped framework 2 is larger than that of the inner section area of the hollow pier of the current station, the unfolded arc-shaped framework 2 is folded; after the platform framework is fixed, a steel bar net piece is laid above the platform framework, the steel bar net piece and the platform framework are locked through a steel wire rope, and when a construction station is replaced each time, the steel bar net piece at the edge is only required to be removed, and then the steel bar net piece is laid again at the next station; when the reinforcing steel bars at the next stage are bound, the operator can overhaul the pier which is poured at the previous stage through the operation hanging basket 13.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an operation platform in hollow mound, includes the platform skeleton and lays the reinforcing bar net piece on the skeleton platform, its characterized in that: the platform framework comprises a rectangular framework (1) and arc frameworks (2) fixedly connected to two sides of the rectangular framework (1), the rectangular framework (1) comprises a group of long steel pipes (3) which are parallel to each other and a group of short steel pipes (4) which are parallel to each other, the long steel pipes (3) are respectively and fixedly connected with the short steel pipes (4), at least two pull rods (5) are arranged on the rectangular framework (1), each pull rod (5) comprises a circular pipe (14) and a pull rod (15), two ends of the circular pipe (14) are respectively and fixedly connected to the long steel pipes (3) which are parallel to each other, and one end of each pull rod (15) is movably connected into the circular pipe (14); arc skeleton (2) include a main frame (6), two side skeletons (7) and a front end skeleton (8), the tail end and the rectangle skeleton (1) fixed connection of main frame (6), side skeleton (7) articulate respectively in the both sides of main frame (6), front end skeleton (8) articulate in the front end of main frame (6).

2. A work platform within a hollow pier as claimed in claim 1, wherein: fixedly connected with horizontal main steel pipe (10) on the platform skeleton, the one end of main steel pipe (10) and main skeleton (6) fixed connection of platform skeleton one side, the other end and main skeleton (6) fixed connection of platform skeleton opposite side, and main steel pipe (10) are parallel with long steel pipe (3).

3. A work platform within a hollow pier as claimed in claim 2, wherein: the number of the main steel pipes (10) is two, sliding rails are arranged below the main steel pipes (10), and the main steel pipes (10) are hoisted by the sliding rails below to form operation hanging baskets (13).

4. A work platform within a hollow pier as claimed in claim 3, wherein: the rectangular framework (1) is provided with an operation platform window (11), and one side of the operation platform window (11) is hinged with a window plate (12).

5. A work platform in a hollow pier according to any of claims 1 to 4, wherein: the free end of the pull rod (15) is fixedly connected with a limiting block (17).

6. A work platform in a hollow pier according to claim 5, wherein: the bolt through holes with equal intervals are formed in the round pipe (14), the bolt holes with equal intervals are formed in the pull rod (15), and the round pipe (14) and the pull rod (15) are fixed through bolts (16).