Proposal of lateral load pattern for pushover analysis of RC buildings

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Proposal of lateral load pattern for pushover analysis of RC buildings

Author: F. Khoshnoudian ∗ , S. Mestri, F. Abedinik | Size: 1.3 MB | Format: PDF | Quality: Unspecified | Publisher: Comp. Meth. Civil Eng., Vol. 2, 2 (2011) 169-183 ©Copyright by the University of Guilan, Printed in I.R. Iran | Year: 2011 | pages: 15

The proposal lateral load pattern for pushover analysis is given in two forms for symmetric concrete buildings: 1-(X/H) 0.5 for low-rise and mid-rise buildings, 2- Sin(ΠX/H) for high-rise buildings. These two forms give more realistic results as compared to conventional load patterns such as triangular and uniform load patterns. The assumed buildings of 4, 8, 12, 16, 20 and 30 story concrete buildings are special moment frame which have been designed according to 2800 standard. Then using conventional load patterns and proposal load patterns, the pushover analysis has been done and results have been compared with the outcomes of nonlinear time history analysis. Results show the accuracy of proposed load pattern in comparing to the load patterns proposed by standards such as FEMA356.

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