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Synchronous lifting device for inner mold and outer mold of hollow pier and construction method of synchronous lifting device

A technology of simultaneous lifting and hollow piers, applied in the direction of erecting/assembling bridges, bridge parts, bridges, etc., can solve the construction difficulties of binding steel bars and the installation and dismantling of internal and external formwork, the accuracy and stability of steel bar binding are difficult to control, and the impact on the life safety of operators. and other problems, to achieve the effect of reducing engineering costs, speeding up construction efficiency, and easy installation

Pending Publication Date: 2021-06-29
ROAD & BRIDGE EAST CHINA ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction process, under normal circumstances, it is necessary to use a frame body tied with steel bars to assist in the installation of the steel bars in the hollow pier. After the steel bars in the hollow pier are bound and pre-buried, the frame body is lifted away, and then the inner and outer molds are hoisted. The hoisting operation The process is complicated, and the repeated transfer, disassembly and assembly of the frame body and internal and external formwork increases the workload of the tower crane and increases the safety risk
And limited by the space of the operating platform, the installation and disassembly of the binding steel bars and the internal and external formwork is more difficult, the accuracy and stability of the steel bar binding are difficult to control, and the life safety of the operators is also affected

Method used

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  • Synchronous lifting device for inner mold and outer mold of hollow pier and construction method of synchronous lifting device
  • Synchronous lifting device for inner mold and outer mold of hollow pier and construction method of synchronous lifting device
  • Synchronous lifting device for inner mold and outer mold of hollow pier and construction method of synchronous lifting device

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Embodiment Construction

[0038] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a mechanical connection. A connection can also be an electrical connection, a direct connection, or an indirect connection through an intermediary, or an internal connection between two elements or an interaction relationship between two elements. Those of o...

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Abstract

The invention belongs to the technical field of hollow pier formwork installation and construction methods, and discloses a synchronous lifting device for an inner mold and an outer mold of a hollow pier and a construction method of the synchronous lifting device. The synchronous lifting device comprises an inner formwork, an outer formwork system, a connecting platform and a lifting system, and the outer formwork system comprises an outer formwork and an outer formwork truss; the outer formwork is located in the outer side wall of the hollow pier, the inner formwork and the outer formwork are arranged at intervals, the outer formwork is arranged on the outer side of the inner formwork, and a pouring space is formed between the inner formwork and the outer formwork; the connecting platform is located above the inner formwork and the outer formwork and fixedly connected with the truss of the inner formwork and the truss of the outer formwork. and the lifting system is installed at the end, away from the connecting platform, of the outer formwork truss. The device can drive the inner formwork and the outer formwork to be lifted synchronously, is simple in structure, easy to install and high in safety, and reduces the risk of high-altitude lifting. The lifting device is used in the construction method of the hollow pier, the construction efficiency of the hollow pier is improved, and the life safety of operators is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of formwork installation and construction methods for hollow pier, in particular to a synchronous lifting device for inner and outer molds of hollow pier and a construction method thereof. Background technique [0002] Hollow pier is a form of structure widely used in the design of railway or expressway bridge pier structure. Especially when the bridge is high, it is preferable to use hollow thin-walled pier structure and cooperate with climbing form method for construction. During the construction process, under normal circumstances, it is necessary to use a frame body tied with steel bars to assist in the installation of the steel bars in the hollow pier. After the steel bars in the hollow pier are bound and pre-buried, the frame body is lifted away, and then the inner and outer molds are hoisted. The hoisting operation The process is complicated, and the repeated transfer, disassembly and assembly of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
CPCE01D21/00E01D19/02
Inventor 刘让群周继军宋刚肖含宇王广义
Owner ROAD & BRIDGE EAST CHINA ENG
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