Existing old small bridge and culvert corrugated steel reinforcing construction method

Abstract

The invention discloses an existing old small bridge and culvert corrugated steel reinforcing construction method. The method comprises the steps: S1, carrying out on-site survey setting-out; S2, carrying out corrugated steel component manufacturing and entry inspection; S3, excavating the foundation of the old small bridge; S4, constructing a solid wall type abutment on the foundation;S5, pre-burying channel steel connecting pieces on the top surface of the foundation or the abutment;S6, carrying out corrugated steel plate piece assembling and arch installation; S7, carrying out anticorrosivecoating on the inner side of the corrugated steel plate on site; and S8, filling the space between the corrugated steel plate arch and the original bridge with concrete. The method has the advantagesof being safe and rapid in construction, short in construction period, environmentally friendly in construction, low in construction cost, remarkable in benefit, capable of effectively solving the problem that diseases are gradually generated in the using process of existing old small bridges and culverts and the like.

Description

technical field [0001] The invention relates to the technical field of corrugated steel reinforcement, in particular to a construction method for reinforcing corrugated steel of old small bridges and culverts in active service. Background technique [0002] Most of the old small bridges and culverts in active service are on national roads, provincial roads, and county and township roads (not expressways or first-class roads), and most of them are composed of reinforced concrete and masonry. With the rapid development of my country's national economy, higher requirements are put forward for transportation. Due to the dynamic load (vehicle load, wind load) in the old small bridges and culverts in active service, cyclically changing stresses are generated, and the overload of transport vehicles increases the fatigue stress of the small bridges and culverts, and the damage cannot be recovered. Changes may occur, which may endanger the safety and durability of small bridges and ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a reinforcement construction method of corrugated steel for old small bridges and culverts in active service, which uses corrugated steel with small cross-section, good flexibility, light weight, easy storage and transportation, and simple assembly and installation process to carry out the reinforcement of old small bridges and culverts. Reinforcement can effectively solve the problem that the old small bridges and culverts in active service are difficult to adapt to the increasing traffic volume or traffic load requirements, and there are potential safety hazards

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