Flexural stiffness and bearing capacity of corrugated steel plate composite structures reinforced by concrete
In order to enhance the load-bearing capacity of single-layer corrugated steel plates(CSP),bolts were welded on the CSP as shear connectors,and then a concrete layer was poured on the CSP to jointly bear the force.Three concrete-reinforced corrugated steel plate assemblies were statically loaded to analyze the effect of different concrete thicknesses on the force behavior of the structure,which verified the reliability of welded studs as shear connectors.The test results show that compared with a single corrugated steel plate,the load-bearing capacity of the composite slab was increased by 60%-111%,and flexural stiffness was more than 4 times.Based on the force performance of corrugated steel plate-concrete(CSPC)composite slab,the calculation method applicable to the flexural stiffness of corrugated steel composite slab was proposed.The numerical model were established in the ABAQUS software to verify the reliability.This study provides design references for the application of concrete reinforced corrugated steel composite structures in long span bridges and culverts.
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维普
