EXPERIMENTAL INVESTIGATION OF STEEL TRUSS REINFORCED CONCRETE TRANSFER BEAM
A new type of steel-concrete composite transfer beam, steel truss reinforced concrete (STRC) transfer beam, was developed according to the force transference mechanism of deep beam. Experimental works of two herringbone STRC transfer deep beams, one triangle STRC transfer deep beam and one normal reinforced concrete (RC) transfer deep beam were carried out to study the mechanical behaviors of the STRC beams. Experimental results showed that STRC deep beam is of high ultimate bearing capacity, large rigidity and good ductility. For the four specimens, the ultimate bearing capacity of STRC deep beam is about 1.3 to 1.4 times and the rigidity is about 1.3 to 1.5 times that of RC deep beam. Strut-and-tie force transference model is formed in STRC deep beams, in which diagonal steel struts of steel truss arranged along the abutments and loading point together with concrete enclosed outside act as SRC struts, and bottom flexural reinforcements and (or) horizontal steel plates act as horizontal tie. Loads can be transferred in the shortest and direct way. Meanwhile the steel truss enhances the integral rigidity and compatibility ability of deformation and prevents deep beams from fragile failure.
steel truss reinforced concrete (STRC) transfer deep beam mechanical behavior ezperimental investigation
Yi Wu Chun Yang Jian Cai Yun Zhou Chun-Mei Zhang
College of Civil Engineering of Guangzhou University, Guangzhou 510641, P.R. China School of Civil Engineering and transportation of South China University of Technology, Guangzhou 51
国际会议
广州
英文
714-719
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）