EQUIVALENT SDOF MODELS FOR PROBABILISTIC PERFORMANCE ASSESSMENT OF MULTISTORY BUILDINGS: METHODOLOGY AND APPLICATION FOR STEEL SPECIAL MOMENT FRAMES

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
View: 333

This Paper With 12 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

SEE08_184

تاریخ نمایه سازی: 27 خرداد 1399

Abstract:

The paper proposes a methodology for generating equivalent single-degree-of-freedom (eqSDOF) models that can mimic the response of multistory buildings from the linear-elastic range through collapse in a probabilistic context. The use of an SDOF model as a surrogate for multistory buildings can significantly alleviate the high computational cost for probabilistic assessment of seismic response considering both model uncertainty and record-to-record variability. To showcase the proposed methodology, the eqSDOF model is developed for special steel moment frame (SMF) buildings. The properties of the eqSDOF model representing a multi-degree-of-freedom (MDOF) structure are computed using a probabilistic function of the fundamental period of the structure developed using Bayesian linear regression. To validate the proposed model, the response of a multistory building is compared with that of the corresponding eqSDOF model. The results show that the proposed eqSDOF model captures the behavior of the MDOF structure up to collapse with acceptable accuracy in response statistics and 95% reduction in analyses runtime

Keywords:

Authors

Shaghayegh Vaseghiamiri

Ph.D. Student, Center for Infrastructure Sustainability and Resilience Research, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Mojtaba Mahsuli

Associate Professor, Center for Infrastructure Sustainability and Resilience Research, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Mohammad Ali Ghannad

Professor, Center for Infrastructure Sustainability and Resilience Research, Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Farzin Zareian

Associate Professor, Department of Civil and Environmental Engineering, University of California - Irvine, Irvine, U.S.A