RESEARCH ON BENDING AND SHEARING BEHAVIOR OF SELF-COMPACTING CONCRETE BEAMS
Self-compacting concrete(SCC)has found wide applications in civil engineering structures,because it has the merits of high filling ability and good anti-segregation before hardening while good mechanical properties after hardening.However,the requirements of high volume binder and sand-to-aggregate ratio in self-compacting concrete may lead to reductions in the modulus of the SCC as well as the anchoring strength between the concrete and steel bars.If the mixture of self-compacting concrete is not reasonably optimized,the mechanical properties of self-compacting concrete structure may not be satisfying.So,it is important to investigate the flexural behavior of reinforced self-compacting concrete and normal concrete(NC)beams.In order to study the bending and shearing behavior of self-compacting concrete beam,an experimental program,which consists of eight self-compacting concrete beams and four corresponding normal concrete beams,is conducted to investigate their cracking loads,flexural capacities,shear capacities and failure modes.Comparisons of the flexural behavior between the self-compacting concrete members and normal concrete members are made and conclusions are come to.The testing results provide references for the design of self-compacting concrete structures and establishing related code provisions.
Self-compacting concrete beams Flezure behavior Shear behavior Ezperiment
Surong Luo Jianlan Zheng
College of Civil Engineering and Architecture,Fuzhou University,P.R.China
国际会议
长沙
英文
641-648
2005-05-26（万方平台首次上网日期，不代表论文的发表时间）