An efficient performance‐based seismic design method for reinforced concrete frames |
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| Authors: | Iman Hajirasouliha Payam Asadi Kypros Pilakoutas |
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| Institution: | 1. Department of Civil Engineering, The University of Nottingham, , Nottingham, UK;2. Civil Engineering Department, Sharif University of Technology, , Tehran, Iran;3. Department of Civil & Structural Engineering, The University of Sheffield, , Sheffield, UK |
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| Abstract: | In this paper, a practical method is developed for performance‐based design of RC structures subjected to seismic excitations. More efficient design is obtained by redistributing material from strong to weak parts of a structure until a state of uniform deformation or damage prevails. By applying the design algorithm on 5, 10 and 15‐storey RC frames, the efficiency of the proposed method is initially demonstrated for specific synthetic and real seismic excitations. The results indicate that, for similar structural weight, designed structures experience up to 30% less global damage compared with code‐based design frames. The method is then developed to consider multiple performance objectives and deal with seismic design of RC structures for a design spectrum. The results show that the proposed method is very efficient at controlling performance parameters and improving structural behaviour of RC frames. Copyright © 2011 John Wiley & Sons, Ltd. |
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| Keywords: | structural optimization structural damage reinforced concrete frames seismic performance nonlinear dynamic behaviour |
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