湖南大学学报（自然科学版）2016，Vol.43Issue(3)：104-112,9.
一般大气环境下钢筋混凝土构件抗震性能时变特征
Time-dependent Seismic Performance of Reinforced Concrete Member under Common Atmosphere Environment
摘要
Abstract
Based on high-precision nonlinear finite element analysis,the multi-factor combined effects on reinforced concrete were considered,including concrete carbonation,reinforcement corrosion,and bond-slip performance degradation.And a refined finite element model was established to investigate the influence of durability deterioration on the seismic performance of reinforced concrete members in common atmosphere environment from corrosion rate of reinforcement and carbonation rate of concrete.It is re-vealed that ,when the service life was less than 30 years,the seismic performance of reinforced concrete members was changed little,while after 30 years,it degraded significantly.On the other hand,when the service life reached 100 years,concrete bearing capacity decreased to 22.5 %,stiffness decreased to 33.5 %,ductility decreased to 36.7 % and energy dissipation decreased to 40.5 %.To this end,it sug-gests that the influence of the service life and durability deterioration on seismic performance of the rein-forced concrete members in common atmosphere environment should be considered in seismic design to guarantee the earthquake-resisting capacity of the structures.关键词
钢筋混凝土/耐久性/抗震/时变特征/一般大气环境Key words
reinforced concrete/durability/anti-seismic/time dependent/common atmosphere envi-ronment分类
建筑与水利引用本文复制引用
梁岩,陈淮,罗小勇..一般大气环境下钢筋混凝土构件抗震性能时变特征[J].湖南大学学报（自然科学版）,2016,43(3):104-112,9.基金项目
国家自然科学基金资助项目（51178470），National Natural Science Foundation of China（51178470）；国家自然科学基金重点资助项目（U1361204），Major Research Project of National Natural Science Foundation of China （）
