Construction method of ground anchor type steel structure overhanging sidewalk

Abstract

The invention discloses a construction method of a ground anchor type steel structure overhanging sidewalk. The construction method comprises the following steps: 1) construction preparation; 2) sitecleaning and lofting: cleaning the outer side of a road cantilever, and carrying out raft lofting on an original pavement; 3) manufacturing and mounting: manufacturing and mounting raft bottom-layer reinforcing steel bars, hidden beam reinforcing steel bars, main steel beams and raft upper-layer reinforcing steel bars; 4) mounting an outer template: mounting a raft and a hidden beam outer template; (5) concrete pouring and maintenance: pouring concrete into the raft and the hidden beam outer mold, carrying out vibration, and carrying out joint cutting and maintenance after the concrete is solidified; 6) paving a surface layer of the overhanging gallery road; 7) mounting arc-shaped handrails; and 8) paving an asphalt surface layer. The method has the beneficial effects that: the raft hiddenbeam is used as a fulcrum, high-strength anchor bolts are used for acting on an embedded end main steel beam to meet the anchoring force required by design, the inner raft and an old pavement structure are combined into an integral balance weight to provide a guarantee, and cantilever arrangement is conducted according to the principle that the anchoring force plus the integral balance weight islarger than all effective loads borne by the cantilever side on the premise that safety and stability are guaranteed.

Description

technical field [0001] The invention relates to the technical field of road construction engineering, in particular to a construction method for a ground-anchored steel structure cantilevered sidewalk. Background technique [0002] The cantilevered sidewalk is generally set at the position near the water or the cliff. It protrudes a certain distance from the road to form a cantilever, in order to widen the width of the road for pedestrians to walk or go sightseeing. Imperfect. After construction, due to the problem of cantilever balance and counterweight between the cantilever side and the road side, the position of the cantilever fulcrum is prone to subsidence or damage, resulting in potential safety hazards on the cantilever side. Therefore, the present invention is based on the traditional Innovation is carried out on the basis of picking balanced counterweights to fundamentally solve the problems existing in the prior art. Contents of the invention [0003] Aiming at ...

AI Technical Summary

Problems solved by technology

[0002] The cantilevered sidewalk is generally set at the position near the water or the cliff. It protrudes a certain distance from the road to form a cantilever, in order to widen the width of the road for pedestrians to walk or go sightseeing. Imperfect. After construction, due to the problem of cantilever balance and counterweight between the cantilever side and the road side, the position of the cantilever fulcrum is prone to subsidence or damage, resulting in potential safety hazards on the cantilever side. Therefore, the present invention is based on the traditional Innovate on the basis of picking a balanced counterweight, and fundamentally solve the problems existing in the existing technology

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