Construction method of deepwater non-covering-layer steel trestle

Abstract

The invention discloses a construction method of a deepwater non-covering-layer steel trestle and belongs to the technical field of bridge construction. The method includes the following steps of steel pipe pile foundation construction, crossbeam construction, cross bridging construction, longitudinal beam construction, distributive beam construction, bridge floor steel plate construction, pouringof concrete piles in steel pipe piles, anti-dumping inclined strut installation, guardrail construction and load stacking. In steel pipe pile foundation construction, the steel pipe piles are installed on a riverbed in a single-row form, and each steel pipe pile is provided with a settlement observation point; in cross bridging construction, each cross bridging comprises an underwater cross bridging arranged on the corresponding steel pipe pile and located under the water surface; and in guardrail construction, multiple installation seats are arranged on the two opposite sides of the steel trestle at intervals and detachably connected with guardrails through bolts and nuts. The method solves the problems that a deepwater non-covering-layer steel trestle is poor in stability and is likelyto be overturned during a flood.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method of a steel trestle bridge in deep water without a covering layer. Background technique [0002] The steel trestle bridge is a relatively common construction bridge, mainly supported by steel pipe piles, bearing the load of Bailey beams or section steel, and laying steel plates for the passage of personnel and equipment. Since the steel trestle bridge can solve the problem of temporary construction passages for bridge piers in the water, it is widely used at home and abroad. At present, most of the steel trestle bridges are located on the river bed with covering layer, and the flow velocity of the water flow is relatively small; for steel trestle bridges located in deep water and geological conditions without covering layer, due to the thin covering layer at the bridge position, most of the bedrock is exposed. It is difficult for the steel pipe p...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for a deep-water uncovered steel trestle bridge in order to solve the problem that the deep-water uncovered steel trestle bridge has poor stability and is prone to overturning when encountering floods.

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