تأثیر طراحی اسکلت بندی قوی بر شکنندگی لرزه ای ساختمان های RC

تأثیر طراحی اسکلت بندی قوی بر شکنندگی لرزه ای ساختمان های RC

Efect of strong‑column weak‑beam design provision on the seismic fragility of RC frame buildings

سال نشر:

25 April 2018

نویسندگان:

Mitesh Surana Yogendra Singh Dominik H. Lang

تعداد صفحه فارسی/انگلیسی:

-

11

کلمات کلیدی:

Capacity design · Collapse probability ، Incremental dynamic analysis ، RC moment-resisting frame buildings · Strong-column weak-beam design

دانشگاه

نشریه

International Journal of Advanced Structural Engineering

چکیده مقاله

A B S  R A C T

Incremental dynamic analyses are conducted for a suite of low- and mid-rise reinforced-concrete special moment-resisting frame buildings. Buildings non-conforming and conforming to the strong-column weak-beam (SCWB) design criterion are considered. These buildings are designed for the two most severe seismic zones in India (i.e., zone IV and zone V) following the provisions of Indian Standards. It is observed that buildings non-conforming to the SCWB design criterion lead to an undesirable column failure collapse mechanism. Although yielding of columns cannot be avoided, even for buildings conforming to a SCWB ratio of 1.4, the observed collapse mechanism changes to a beam failure mechanism. This change in collapse mechanism leads to a signifcant increase in the building’s global ductility capacity, and thereby in collapse capacity. The fragility analysis study of the considered buildings suggests that considering the SCWB design criterion leads to a
signifcant reduction in collapse probability, particularly in the case of mid-rise buildin

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