The Comparison of the IDA and ET on Steel Structures Rehabilitated by Isolators
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
View: 6
This Paper With 17 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_CIVLJ-2-2_006
تاریخ نمایه سازی: 23 شهریور 1403
Abstract:
Endurance time (ET) method is a relatively new performance-based earthquake method for structural evaluation and design. In this method, the structure is subjected to a gradually intensifying accelorogram(s) and its performance is assessed based on the maximum time duration that it can meet the specified performance objectives. Using moment-resisting and braced frames which are rehabilitated by base isolators; it is shown that ET can estimate results of the Incremental dynamic analysis (IDA) with acceptable accuracy. Spectral acceleration has been considered as the intensity measure. While the IDA would require several nonlinear dynamic analyses under multiple suitably scaled ground motion records, the ET can practically estimate the seismic behavior of simple to complex systems only by few nonlinear time history analyses. Moreover, it is shown that even in intense ground motions, super structures do not show considerable nonlinear behaviors and interstory drifts, because of energy dissipating by base isolation. The results also show that the ET method has the benefits of both time history analysis and the simplicity of the nonlinear static methods and can potentially be a useful tool for evaluation and designing seismic-resistant structures.
Keywords:
Nonlinear analyses , Incremental dynamic analysis Endurance time method , Seismic Rehabilitation , base isolation
Authors
Hamed Arshadi
Department of Civil Engineering, Imam Khomeini International University, Qazvin, Iran
Ramezan Ali Izadifard
Department of Civil Engineering, Imam Khomeini International University, Qazvin, Iran
Homayun Estekanchi
Department of Civil Engineering, Sharif University of Technology, Tehran, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :