Nonlinear Longitudinal Shear Distribution in Steel-Concrete Composite Beams

Archives of civil engineering

B. Grzeszykowski^1¹  E. Szmigiera^2² 

[1] Warsaw University of Technology, 00-637, Warsaw, Poland^1;Warsaw University of Technology, 00-637, Warsaw, Poland^2

关键词: composite beam;    steel;    concrete;    longitudinal shear;    shear flow;    fiber element method;    non-ductile shear connectors;   

DOI  :  10.2478/ace-2019-0005

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

This paper describes a fiber-based model proposed for computing the nonlinear longitudinal shear distribution in composite steel-concrete beams. The presented method incorporates the accurate stress-strain relationship with strain softening for concrete and bi-linear constitutive relation for structural steel, both in agreement with Eurocodes, however any one-dimensional constitutive relation can be used. The numerical solution for a simply supported beams loaded with the uniform load, concentrated force and both was presented. The results indicate that the highest value of the shear flow for a beam under an uniform load is at the ends and in the one third of the span length and for the point load, the maximum shear is in the proximity of the concentrated force.

【 授权许可】

Unknown