• comparison of equivalent linear and nonlinear ground response analysis methods in the time domain

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 431
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     earthquake resistant design is an important consideration for designing structures in seismic prone areas. on the other hand to get the design earthquake motion at the ground surface or at the foundation of a structure, engineers need to make a seismic site response analysis. the motion equation is a second-order propagation type of equation. this equation can be solved in either frequency domain or time domain. quake/w is a geotechnical finite element software product used for the dynamic analysis of earth structures subjected to earthquake shaking and other sudden impact loading. this software solves the equation of motion in the time domain by integrating in a small time increment. in this paper, the coyote lake problem is simulated by the software. this modeling is carried out without any boundary conditions and only by enough increasing the width of the soil layers. the analyses were done by equivalent linear and nonlinear methods. the peak ground acceleration and response spectrum at the ground surface are determined by the two approaches for the site. comparison of the results shows that the nonlinear approach predicts closer response to real recorded data with respect equivalent linear.

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