High pier construction method for external whole operation platform

Abstract

The invention relates to a high pier construction method for an external whole operation platform. The construction method comprises the following steps that: firstly, the external whole operation platform (3) is machined according to the size of the outline of a pier body; before pier body construction, the external whole operation platform (3) is wholly hoisted to the top of a poured pier body (1) and is connected with a poured pier body template (2) on the outer surface of the poured pier body (1) by bolts; when steel bars are installed, construction is carried out on a safety operation platform (4) of the external whole operation platform by workers and installation and positioning of the steel bars are assisted by utilizing the external whole operation platform; and after the installation of the steel bars is finished, the connecting bolts between the external whole operation platform (3) and the poured pier body template (2) are dismantled, and the external whole operation platform (3) is wholly hoisted and dismantled by a crane... According to the high pier construction method for the external whole operation platform, the external whole operation platform is adopted in the steel bar construction of the high pier body, the thickness of a concrete protection layer of the steel bars of the high pier as well as construction safety can be ensured, and the construction efficiency can be improved.

Description

technical field [0001] The invention relates to the construction of high piers of bridges, in particular to a high pier construction method of an external integral operation platform. In particular, it refers to the construction method of high pier and pier body reinforcement using an external integrated operating platform, which is also called an external integrated construction platform. Background technique [0002] In the construction of the existing high piers of bridges, the construction of steel reinforcement for the pier body is one of the important processes. At present, the commonly used method for the construction of steel reinforcement for the pier body of the high pier is to set up scaffolding outside the pier body of the high pier as an operating platform for construction personnel to assist During the construction of the pier body reinforcement, the construction personnel perform the installation operation of the pier body reinforcement such as binding the rei...

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Problems solved by technology

[0003] 1. It is difficult to locate the steel support, and it may overturn under strong wind conditions. There are many scaffold collapse accidents. It is difficult to control the thickness of the concrete protective layer of the high pier steel bar (also referred to as the high pier steel bar protective layer). Once the bar body is exposed , will seriously affect the structural safety and durability

[0004] 2. The height of the scaffolding needs to be the same as the height of the pier body of the high pier. It cannot be dismantled before the construction is completed, and it cannot be used effectively. The investment in the large adjacent facilities of the high pier is large, it is difficult to check and maintain, the quality of the erection is not easy to control, and the construction cost high

[0005] 3. It takes a long time to erect and dismantle the scaffolding, and the construction efficiency is low, resulting in a long construction period for the pier body of the high pier, and high labor and mechanical costs

[0006] 4. It is difficult to standardize safety facilities and cannot be in place in time

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