General Seismic Load Distribution for Optimum Performance-Based Design of Shear-Buildings |
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Authors: | Iman Hajirasouliha Kypros Pilakoutas |
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Institution: | 1. Department of Civil Engineering , The University of Nottingham , Nottingham , United Kingdom i.hajirasouliha@nottingham.ac.uk;3. Department of Civil &4. Structural Engineering , The University of Sheffield , Sheffield , United Kingdom |
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Abstract: | An optimization method based on uniform damage distribution is used to find optimum design load distribution for seismic design of regular and irregular shear-buildings to achieve minimum structural damage. By using 75 synthetic spectrum-compatible earthquakes, optimum design load distributions are obtained for different performance targets, dynamic characteristics, and site soil classifications. For the same structural weight, optimum designed buildings experience up to 40% less global damage compared to code-based designed buildings. A new general load distribution equation is presented for optimum performance-based seismic design of structures which leads to a more efficient use of structural materials and better seismic performance. |
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Keywords: | Optimization Performance-Based Seismic Design Irregular Structures Lateral Forces Site Soil Classification Ductility |
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