Corrugated steel box culvert

The span is 6.6m, the rise is 3.7m, and the length is 12m. It is evenly divided into two sections along the longitudinal direction, with the difference being the curvature of the top arch plate. The traditional corrugated steel bridge culvert with a cross-section shape has a large height, making it generally difficult to apply to low roadbed design in plain areas. To solve the above problems, corrugated steel box culvert structures with small rise span ratio, high cross-sectional utilization rate, and low requirements for filling back can be used as substitutes. Research has found that the main force on corrugated steel box culverts is bending moment, which is significantly different from the circumferential pressure theory used in traditional corrugated steel arched section shaped corrugated steel pipe structures.