Finite Element Method of Composite Steel-Concrete Beams Considering Interface Slip and Uplift

Introduction:

In order to analyze the displacement and internal force of composite steel-concrete beams under the vertical load, The finite element solution of composite steel-concrete beams under concentrated loads considering the existence of interface slip and vertical uplift based on the basic idea of elastic mechanics was derived in this paper.

Method:

A new kind of stiffness equation of bar system was got and its correctness was demonstrated with experimental value, the problem of composite beams considering the existence of interface slip and vertical uplift was solved, avoiding to produce large amount of calculation with the body element method.

Results and Conclusion:

It can be seamlessly integrated into the current engineering design software, which provides effective help to practical engineering problems.

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