摘要
本文首先试验研究了荷载作用下高性能混凝土冻融循环的耐久性 ,提出了荷载作用下冻融循环断裂可靠度的概率统计方法。研究表明 :荷载作用下的破坏主要为外荷载加速冻融破坏 ,诱发动弹性模量降低和试件断裂。通过对应力作用下混凝土材料冻融失效破坏的可靠度计算 。
Both in bearing external load and freez-thaw, the durability of HPC has been experimentally studied at first. Then a statistical method for analysing the probability of failure of concrete, was to be put forward. The rezults show that, the failure of concrete mainly appears to accelerate the freez-thawing damerge, i.e.to induce the dynamic modulus of elasticity decreasing and the specimen rupture. Based on calculating the probability of failure of concrete the freez-thawing cycles, below which the concrete is assured of safty at a certain reability, will be obtained.
出处
《混凝土与水泥制品》
北大核心
2000年第3期3-6,共4页
China Concrete and Cement Products
关键词
冻融循环耐久性
概率统计
可靠度
高性能混凝土
Freez-thawing durability, Statistical method, Releability, Equated cycle of freez-thawing
