Experimental study on the Quasi plane assumption of variable cross-section continuous rigid frame bridge with corrugated steel webs
LIU Baodong
LI Zushuo
XU Rui
Abstract：A three-span single cell box variable cross-section continuous rigid frame bridge model with corrugated steel webs is designed and constructed.Combining the experiments with finite element numerical simulation,the Quasi plane assumption of variable cross-section continuous rigid frame bridge with corrugated steel webs is studied.The results show that the axial stiffness of corrugated steel webs is negligible and only the upper and lower concrete flanges are effectively considered to resist the axial forces and bending moments;the longitudinal strain distributions along the depth of 3/8 and 1/4 midspan sections are similar to that of 1/2 mid-span section;the longitudinal strain direction along the depth of inner bearing section is contrary to that of 1/2,3/8 and 1/4 mid-span sections,and the strain value of the roof and floor are basically same;the strain distributions of 1/2 mid-span section and inner bearing section obey the Quasi plane assumption,while that of 3/8 and 1/4 mid-span sections do not accord with the Quasi plane assumption;the strain distribution of the part between the 1/4 mid-span section and 1/2 mid-span section tends to obey the assumption.
Keywords：bridge engineeringcorrugated steel webQuasi plane assumptionmodel testfinite element analysis
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 28-33 )