Theoretical and Experimental Analysis of Bending Behavior of Composite Beam with Notched Web
LI Guo-qiang,LI Liang,LI Xian-hui and SI Lin-jun
DOI:10.11835/j.issn.1674-4764.2011.03.002
Received October 16, 2010,Revised , Accepted , Available online July 01, 2015
Volume ,2011,Pages 1-7
- Abstract
A new kind of steel-concrete composite beam with notched web is proposed, and the bend and shear behaviors of this composite beam are investigated. First of all, the constitution, bearing characteristics and merits of the steel-concrete composite beam with notched web are introduced; then, a group of formulas about the bending capacity, slip between the steel beam and the concrete flange, and the deflection are introduced; after that, the bending behavior, slip effect and bearing characteristic of the steel-concrete composite beam with notched web are studied on 4 specimens, which are tested by applying two concreted vertical loads on the top of concrete flange. And the finite element model is adopted to analyze the results of the 4 specimens; finally, the reliabilities of the formulas are verified by comparing the results of theoretical formulas, the results of tests and that of finite element analysis. Study shows that the bend behavior and shear behavior are fine, and the popularization of this new kind of composite beam which can be broadly used in building engineering will save the consumption of steel.