摘要
为了满足对活性粉末混凝土(RPC)结构进行非线性分析和设计的需要,通过试验研究了RPC试件在双轴受压状态下的强度和变形特性,分析了RPC的破坏形态、双轴抗压极限强度、峰值应变、应力-应变曲线等变化规律,给出了RPC的二轴峰值应力包络图与峰值应变包络图,建立了主应力空间下RPC的双轴破坏准则,为RPC按多轴强度理论进行设计提供了试验依据.
For purpose of performing the nonlinear analysis and designing reactive powder concrete（RPC） structure,experimental investigation of the deformation and strength of RPC specimens with size of 150 mm×150 mm×50 mm under biaxial compression was carried out.The stresses and strains at the biaxial loading directions of RPC specimens were obtained under biaxial strain controlled loading condition. Based on the test data,the change rule of the failure modes,biaxial comprehensive stress,peak strain and the stress-strain curves were studied.The biaxial strength envelop and peak strain envelops of RPC were obtained.The formula of Kupfer-Gerstle failure criterion for RPC under biaxial compression is proposed, which provide experimental base for the design of RPC structure considering the multi-axial strength.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2011年第3期305-309,316,共6页
Journal of Building Materials
基金
北京交通大学基本科研业务费资助项目(2009JBM070)
关键词
活性粉末混凝土(RPC)
双轴压
强度
变形
破坏准则
reactive powder concrete（RPC）
biaxial compression
strength
deformation
failure criterion
