Estimating Effective Fundamental Period of RC Frames with Steel Eccentric Bracing according to Initial Vibration Period

سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,383

فایل این مقاله در 7 صفحه با فرمت PDF قابل دریافت می باشد

این مقاله در بخشهای موضوعی زیر دسته بندی شده است:

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

ICCE09_1284

تاریخ نمایه سازی: 7 مهر 1391

چکیده مقاله:

Most of seismic codes propose an experimental equation, distributed for different structural systems, to present fundamental period. To make sure for required modifications on seismic design codes, one hundred eighty concrete moment resisting frames with steel eccentric braces giving variety in number of stories, bracing kinds of spans, length of link beam and number of spans have been considered to capture vibration period by performing two-dimensional nonlinear pushover analyses. Pushover Analyses havebeen conducted using SAP-2000 program, which can consider material nonlinearities almost near reality. At the end, fundamental period and effective fundamental period both derived by analysis and the experimental has been discussed concerning bracing kind of spans, length of link beam and height ofstructure. This research has suggested an analytical equation based on analysis to present fundamental period. Analytical results confirm the validity of the experimental equation for presenting fundamental period in the case of reminded frames

نویسندگان

Mohammad Reza Hoseinzadeh

Department of Civil Engineering, Behbahan Branch, Islamic Azad University, Behbahan