Pounding force response spectrum under near-fault strong ground motion

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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ISAV02_018

تاریخ نمایه سازی: 26 اسفند 1391

Abstract:

The impact force response spectrum between two adjacent linear structures excited by faultnormal pulse and fault-parallel displacement with different magnitudes has been considered. Bothstructures have been modelled by single-degree-of-freedom systems and pounding has been simulatedby the non-linear viscoelastic model. The system of coupled equations of motion of the model has been solved by the fourth-order runge-kutta method. The results of the study indicate that thepeak pounding force between adjacent structures induced by fault-normal pulse is many times larger than that induced by fault-parallel displacement. Because of high velocity of the fault motion and under fault-normal pulse with magnitudes M=5, 6, and 7 the gap size of 15cm, 90cm, and 2.25m are necessary, respectively, to avoid collisions for all considered combinations of the structural periods. Under fault-parallel displacement with magnitudes M=5, 6, and 7 the separation gap of 5.5cm, 31cm, and 97cm are necessary, respectively, to prevent pounding

Authors

Moein Rezaei Balouchi

MS Student, Dept. of Civil Eng., Faculty of Eng., University of Guilan, P.O. Box ۳۷۵۶,

Reza Saleh Jalali

Assistant Professor,

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