Research on mechanical properties of double-sided composite beam with corrugated steel web
To further explore the application scope of the double composite action principle,the simulation of a single-span double-sided composite beam test was performed using the finite element method.This simulation revealed the failure mechanism under load and provided insights.Subsequently,the concept of combining the double-sided composite beam with a corrugated steel web,known as the corrugated steel web double-sided composite beam,was proposed.Finally,a comparative analysis of the corrugated steel web double-sided composite beam was conducted using finite element simulation and theoretical calculations with variable parameters.The results indicate that the corrugated steel web double-sided composite beam exhibits significant improvements in flexural capacity,stiffness,and plastic rotational behavior compared to a conventional corrugated steel web composite beam.The proposed stiffness degradation curve effectively reflects the decay of structural stiffness during the loading process.The structural yield point can be quickly determined using the structural stiffness half-life method in the experiment.The mechanical performance of the H-shaped corrugated steel web composite beam is generally poor,making it unsuitable for engineering applications.The corrugated steel web composite beam demonstrates relatively good robustness,while the flat web composite beam exhibits poor robustness.
NETL
NSTL
万方数据
