典型文献
Mesoscopic investigation on seismic performance of corroded reinforced concrete columns
文献摘要：
In addition to the normal service loadings,engineering structures may be subjected to occasional loadings such as earthquakes,which may cause severe destruction.When the steel rebar is corroded,the damage could be more serious.To investigate the seismic performance of corroded RC columns,a three-dimensional mesoscale finite element model was established.In this approach,concrete was considered as a three-phase composite composed of aggregate,mortar matrix and interfacial transition zone(ITZ).The nonlinear spring were used to describe the bond slip between steel and concrete.The degradation of the material properties of the steel rebar and cover concrete as well as the bonding performance due to corrosion were taken into account.The rationality of the developed numerical analysis model was verified by the good agreement between the numerical results and the available experimental observation.On this basis,the effect of corrosion level,axial force ratio and shear-span ratio on the seismic performance of corroded RC columns,including lateral bearing capacity,ductility,and energy consumption,were explored and discussed.The simulation results indicate that the mesoscopic method can consider the heterogeneity of concrete,to more realistically and reasonably reflect the destruction process of structures.
文献关键词：
中图分类号：
作者姓名：
Jin Liu;Li Yanxi;Zhang Renbo;Du Xiuli
作者机构：
Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100024,China
文献出处：
引用格式：
[1]Jin Liu;Li Yanxi;Zhang Renbo;Du Xiuli-.Mesoscopic investigation on seismic performance of corroded reinforced concrete columns)[J].地震工程与工程振动（英文版）,2022(04):969-985
A类：
rebar
B类：
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AB值：
0.614863
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