Assessment of an RC existing hospital building with special moment frame using fragility curve

الموضوعات : Structural Engineering

Farhad Cheraghi ¹ , Abdolreza S. Moghadam ²

1 - Department of Civil Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2 - Associate Professor, International Institute of Earthquake Engineering and Seismology, Department of Earthquake Engineering, Tehran, Iran

تاريخ الإرسال : 21 الثلاثاء , رجب, 1438 تاريخ التأكيد : 15 الإثنين , ذو القعدة, 1438 تاريخ الإصدار : 22 الأربعاء , ربيع الأول, 1446

الکلمات المفتاحية: Fragility curve, Incremental dynamic analysis, Vulnerability, SeismoStruct,

ملخص المقالة :

In this study, an existing hospital structure has been evaluated with incremental dynamic analysis (IDA). This building is accommodated in Karaj with soil type II. At first, two 2-D frames along X, Y direction are selected. Then, five performance levels are determined according to “Rehabilitation Code for Existing Buildings (Publication No. 360) including Immediate Operational (IO), Limited Damage (LD), Life Safety (LS), Limited Life Safety (LLS), and Collapse Prevention (CP). The Peak Ground Acceleration (PGA) as earthquake intensity and relative displacement (Drift) as the failure index has been used for incremental dynamic analysis method via seismo-struct software. In the next step, the probability of reaching or exceeding of the structure to a limit state was determined. Results of incremental dynamic analysis for fragility curves show that the probability of reaching or exceeding from IO level is approximately . This probability is almost for LD, for LS, for LLS, and for CP. It has been signified that the probability of fragility is raised with increasing in PGA

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