Cooperative construction method for hoisting and mounting guardrail template

Abstract

The invention provides a collaborative construction method for hoisting and mounting a guardrail template. The method comprises the following steps: binding formed guardrail steel bars; adopting two sets of hoisting devices to hoist an inner side formwork and an outer side formwork of a guardrail correspondingly, and moving the inner side formwork and the outer side formwork to the two sides of the guardrail steel bars, synchronously positioning and lowering the inner side formwork and the outer side formwork of the guardrail to the two sides of the guardrail steel bars, and defining a pouring space of the guardrail by the inner side formwork and the outer side formwork of the guardrail; and oppositely pulling and fixing the guardrail inner side formwork and the guardrail outer side formwork. The method has the advantages of mechanical device, simple and convenient method, labor saving and construction cost saving, the construction progress can be effectively accelerated, and the construction safety is improved.

Description

technical field [0001] The invention relates to the field of infrastructure construction, in particular to a collaborative construction method for hoisting and installing guardrail templates. Background technique [0002] In the construction process of cast-in-place concrete continuous girder bridge, the operation of the guardrail of the bridge superstructure usually adopts the construction steps of binding of guardrail steel bars-formwork fixing-concrete pouring-formwork removal; in terms of the work of guardrail formwork fixing, it usually The finalized steel formwork was used to seal and fix the formwork. However, during the process of fixing the steel formwork, it was found that the bulkiness of the steel formwork was not conducive to the on-site fixing construction. At the same time, the steel formwork on the outside of the guardrail had a relatively large construction cost under high-altitude operations and limited work space. Difficulty and hidden dangers; therefore, ...

AI Technical Summary

Problems solved by technology

[0002] In the construction process of cast-in-place concrete continuous girder bridge, the operation of the guardrail of the bridge superstructure usually adopts the construction steps of binding of guardrail steel bars-formwork fixing-concrete pouring-formwork removal; in terms of the work of guardrail formwork fixing, it usually The finalized steel formwork was used to seal and fix the formwork. However, during the process of fixing the steel formwork, it was found that the bulkiness of the steel formwork was not conducive to the on-site fixing construction. At the same time, the steel formwork on the outside of the guardrail had a relatively large construction cost under high-altitude operations and limited work space. Difficulty and hidden dangers; thus steel formwork fixed construction period and construction difficulty directly affect the construction progress and construction quality of guardrail construction

[0003] At present, during the fixed installation process of cast-in-place box girder guardrail steel formwork, forklifts are generally used to move the steel formwork to the area near the guardrail steel formwork installation and construction, and the steel formwork inside the guardrail is leaned against the steel bar binding section of the guardrail with the cooperation of multiple people. On the inner side, pass the steel mold by hand on the platform of the hanging basket to carry out the outer steel mold of the guardrail. Alignment of the steel mold, after the alignment is completed, the upper and lower ends of the pull screw are fixed, so as to achieve the purpose of fixing the steel mold of the guardrail. The entire steel mold fixing process is inefficient, relies heavily on labor and the construction operation is inconvenient, which affects the construction efficiency and cost

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