Starting from a novel gradient-based method for the performance-based seismic design (PBSD) of framed RC structures, proposed by one of the authors, some improvements are presented in order to take into account the damage-induced stiffness degradation at larger response values. The method allows for the computation of the values of selected independent design variables (beams and column sections and reinforcement) leading to the attainment or non-exceedance of pre-defined mean annual frequencies for multiple limit states, i.e. incorporating control of the seismic risk during the design phase. The improvement is accomplished by doubling the number of equivalent linear analyses of seismic performance at each point in the design space, implementing an intermediate element-by-element damage assessment after the first analysis. The procedure is exemplified with reference to a 15-storey RC plane frame building.
Seismic design Inelastic analysis Mean annual rate Risk SAC
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CEB-FIP (2012) Probabilistic performance-based seismic design. Fib bulletin 68, Technical report of the Task Group 7.7 (Convener P. E. Pinto)Google Scholar
Cornell AC, Jalayer F, Hamburger RO, Foutch DA (2002) Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guidelines. J Struct Eng 128(4):526–533CrossRefGoogle Scholar
Franchin P, Pinto P (2012) Method for probabilistic displacement-based design of RC structures. J Struct Eng 138(5):585–591CrossRefGoogle Scholar
Günay MS, Sucuoglu H (2009) An improvement to linear-elastic procedures for seismic performance assessment. Earthq Eng Struct Dynam 39:907–931Google Scholar
Günay MS, Sucuoglu H (2010) An improvement to linear-elastic procedures for seismic performance assessment. Earthq Eng Struct Dynam 39(8):907–931Google Scholar
Ibarra LF, Medina RA, Krawinkler H (2005) Hysteretic models that incorporate strength and stiffness deterioration. Earthq Eng Struct Dynam 34(12):1489–1511CrossRefGoogle Scholar
Jalayer F, Cornell CA (2009) Alternative non-linear demand estimation methods for probability-based seismic assessments. Earthq Eng Struct Dynam 38(8):951–972CrossRefGoogle Scholar
Lignos DG, Krawinkler H (2011) Deterioration modeling of steel components in support of collapse prediction of steel moment frames under earthquake loading. J Struct Eng, ASCE 137(11):1291–1302CrossRefGoogle Scholar
Lin T, Harmsen SC, Baker JW, Luco N (2013) Conditional spectrum computation incorporating multiple causal earth-quakes and ground motion prediction models. Bull Seismol Soc Am 103(2A):1103–1116CrossRefGoogle Scholar
Loh CH, Jean WY, Penzien J (1994) Uniform-hazard response spectra–An alternative approach. Earthq Eng Struct Dynam 23(4):433–445CrossRefGoogle Scholar
Vamvatsikos D (2013) Derivation of new SAC/FEMA performance evaluation solutions with second-order hazard approximation. Earthq Eng Struct Dynam 42:1171–1188CrossRefGoogle Scholar