TY - JOUR ID - 700834 TI - A Cost Value Approach for Designing Base Isolated Structures JO - Journal of Seismology and Earthquake Engineering JA - JSEE LA - en SN - 1735-1669 AU - Ramezani, Soheil AU - Ziyaeifar, Mansour AD - Ph.D. Graduate, International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran AD - Associate Professor, Structural Engineering Research Center, International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran Y1 - 2021 PY - 2021 VL - 23 IS - 1 SP - 51 EP - 64 KW - Value analysis KW - Cost-Benefit Analysis KW - Rate-based design KW - Value-based design KW - Base Isolation DO - 10.48303/jsee.2022.1978148.1039 N2 - In this work a value-based design approach is used to rationalize the structural design procedure in terms of initial investment and structural performance as well as other related parameters like design life span and economical conditions of the region. In this approach, at first a definition for design value is introduced in which the structural performance is converted to cost equivalent and based on this definition a value design curve for the structural system is found. Then, an optimality criterion is adapted to find a rational design point for the structural system. The results of such studies for residential occupancy shows the fact that a sub-optimal value design point for a base-isolated structural system requires much lower design shear force than the one usually recommended by code-based design approaches. According to the results, the base isolation system does not provide a strong justification to be used instead of the fixed-base system even in economies with high discount rates. UR - http://www.jsee.ir/article_700834.html L1 - http://www.jsee.ir/article_700834_5a4dec2928b57d71a955a6abf4607e10.pdf ER -