Arched truss ground counter-force pre-pressing device

Abstract

The invention discloses an arched truss ground counter-force pre-pressing device which comprises a body, and the body comprises a pre-pressing pedestal formed by connecting a transverse rod and a vertical rod in a perpendicular crossing mode and a counter-force beam fixedly connected to the bottom of the vertical rod. The pre-pressing pedestal is horizontally placed on the ground, an arched truss piece is laid on the pre-pressing pedestal, a limiting pier is fixedly arranged at the joint of the vertical rod and an arch ring of the truss piece of the pre-pressing pedestal, and the arch ring and the vertical rod are fixedly connected through the limiting pier; a counter-force pier base fixed on the vertical rod is supported at the bottom end of the counter-force beam, and a forcing device is arranged between the top end of the counter-force beam and a truss bottom beam of the truss piece. The invention aims to provide the ground counter-force pre-pressing device which can prevent the bracket from being in an upright state, and is short in construction period and high in arch truss pre-pressing efficiency.

Description

Technical field [0001] The present invention relates to the field of bridge engineering construction techniques, and more particularly to an arched truss terrestrial reaction force preload device. Background technique [0002] As the housing bridge design style continues to pursue aesthetics, the beams on the increasing suspension bridge are in the curved shape, so the beam bracket on the suspension bridge must adopt a supporting method including the arched truss. The traditional construction scaffold prematch is mainly pre-compressed by sandbags, water tanks or steel. Since the stent beams in an upright state are high, the materials are large, the lifting period is long, and the weather is affected by the weather. Personnel need more, and the safety of high-altitude construction staff is difficult to ensure a lot of safety hazards. Therefore, there is an urgent need to avoid the bracket in an upright state, the construction period is short, the arched truss pre-compressive effic...

AI Technical Summary

Problems solved by technology

The traditional method of preloading construction supports mainly uses sandbags, water tanks or steel for preloading. Due to the weight of the support beams in the upright state, the material investment is large, the hoisting period is long, and it is greatly affected by the weather.

A large number of personnel are needed, and it is difficult to guarantee the safety of construction personnel working at heights, which brings many safety hazards

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