A four-lift self-assembly method for mobile formwork brackets

Abstract

The invention discloses a movable formwork bracket four-stage-lifting self-assembling method and belongs to the field of large bridge construction. During pier structure construction, steel tube supporting legs are embedded and arranged in advance, simple lifting and winding equipment is fixed on the supporting legs, and thin steel wire ropes and safety ropes are reserved; construction hanging baskets are mounted and used by the aid of the reserved thin steel wire ropes and the reserved safety ropes, so that constructors and small accessories can get on and off pier tops; simple cranes are lifted and mounted by the aid of the hanging baskets and pier top structural steel cantilever system; bracket mounting frame spare parts are lifted and mounted by the aid of the simple cranes as well as being assembled and formed at pier tops; brackets are lifted integrally by the aid of bracket mounting frames and winding systems. With the adoption of four-stage lifting technical measures, the construction technical problem that large lifting equipment cannot be used at construction sites for directly mounting brackets is solved, the operation is simple, material and equipment inputs are few, and the safety guarantee is improved. On the premise that the construction safety and the construction quality are guaranteed, the construction period of a whole project is shortened by 18%, and about 30% of the construction cost is saved.

Description

Technical field [0001] The invention relates to a four-lifting and self-assembling method of a movable mold carrier bracket. Background technique [0002] In the construction process of the large bridge high pier cast-in-place box girder mobile formwork method, the high-altitude assembly construction of the bracket is first required. In the past, large-scale hoisting equipment was used to directly hoist and assemble the high-altitude bracket. In practical applications, there are large safety hazards in the high-altitude hoisting and assembly of large-scale brackets. The cost of mechanical facilities is high, the safety risks are high, and the terrain is restricted by many conditions. [0003] In order to reduce safety risks and save construction technology costs (which can save large cranes, road treatment, equipment and materials costs), and solve the problem of bridge pier height, surrounding terrain, and environmental conditions, it is difficult to use large-scale lifting equipm...

AI Technical Summary

Problems solved by technology

In this way, through the four lifting technical measures, the construction technical problem that the large-scale hoisting equipment cannot be used to directly install the bracket on the construction site has been overcome, and the technical principle of fragmentation construction has been adopted. The operation is simple, the investment in materials and equipment is small, and the safety guarantee can be guaranteed. improve

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