Performance-based time-varying aseismic design method for durability damaged RC members
LIANG Yan1, LI Jie1, LUO Xiaoyong2, CHEN Huai1
1. College of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
2.College of Civil Engineering, Central South University, Changsha 410075, China
Applying the performance-based aseismic design method, considering influences of typical durability environment and time-varying earthquake action, the performance-based time-varying aseismic design method for durability damaged RC members was explored. Through quantified processing of panels’ deformation ability, under the typical durability environment within the design working life, the quantified relation expressions among panels’ damage indexes, relative height of compression zone, stirrup characteristic value and curvature ductility were established. In RC member aseismic durability design, the design demands were adjusted to meet performance objective requirements according to the durability environment and design working life. So, the aseismic design indexes, such as, stirrup characteristic value, minimum reinforcement ratio and relative height of compression zone were adjusted. Their adjusting coefficients for different design working lifes under the common atmosphere environment were given.
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