Circular-arched steel-corrugated-plate bridge and culvert structure

Abstract

The invention relates to a circular-arched steel-corrugated-plate bridge and culvert structure. A circular-arched bridge and culvert with a reinforced concrete structure is not adaptable to foundation deformation and uneven settlement well, damages caused by earthquakes cannot be buffered effectively, construction cost is high and construction period is long. Bases are arranged at the lower portion of the bridge and culvert structure. Single-span or multi-span bridge arches are arranged on the upper portions of the bases, are steel-corrugated-plate circular arches and are formed by assembly and fixation of steel corrugated plates through bolts. The radius of each steel-corrugated-plate circular arch is 2.1648m, central angle is 135 degrees, arc curvature radius is 4.33m, single span is 4m, and rise height is 1.3365m. A circular-arched bridge and culvert with the structure has axial corrugations and excellent mechanics characteristics, stress strain caused by load is simultaneously distributed axially and radially, stress concentration of the load is effectively dispersed, advantages of a steel structure are exploited better, and wide application prospect is provided.

Description

Technical field [0001] The present invention belongs to the field of road transportation technology, which involves a culvert in an arc arched steel ripples. Background technique [0002] In many years of frozen soil, swelling soil, soft soil, wet trap and loess, due to the different load load loaded on the foundation, the unevenness of the foundation soil layer, and the influence of various external factors, the structure of the structure, the structure of the structureThe foundation will occur uneven settlement, which will cause the structure of the structure and the generation of the internal force of the structure. For rigid concrete structure, if this uneven deformation is too large, the internal force exceeds the structure of the structure, which will cause cracks and damage of the concrete structure and damage., Resulting in the function and life of the structure that affects the structure.Especially the arc arch bridge culverts of reinforced concrete structures cannot be ...

AI Technical Summary

Problems solved by technology

[0002] In bad foundations such as permafrost, expansive soil, soft soil, and collapsible loess, due to the different loads on the foundation, the unevenness of the foundation soil layer, and the influence of various external factors, the structure The uneven settlement of the foundation will cause the deformation of the structure and the generation of the internal force of the structure. For the rigid concrete structure, if the uneven deformation is too large and the internal force exceeds the limit of the internal force of the structure, it will cause cracks and damage to the concrete structure. , resulting in affecting the applicable function and life of the structure

In particular, arc arch bridges and culverts with reinforced concrete structures cannot well adapt to foundation deformation and uneven settlement, and cannot effectively buffer the damage caused by earthquakes. Moreover, the construction cost is high, and the construction period is long, which is mostly affected by environmental conditions in the rainy season. , the construction progress is slow

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