BEHAVIOR OF REGULAR STEEL MOMENT RESISTING CONCENTRICALLY BRACED FRAMES (MRCBFs) IN SEISMIC ZONES

摘要：

An equation is proposed to improve the design of medium-rise ductile steel moment-resisting concentrically braced frames. The equation was derived by defining the minimum strength ratio for the resisting columns of the moment frames and the bracing system to have consistent strong column weak beam weaker brace collapse mechanisms assumed in the design premises of international building codes. The expression is supported with the pushover analysis of 26 ductile steel MRCBFs, with different heights and two different bracing configurations. From the analysis of the research results a strong relationship is found between the collapse mechanism and the building height, beams stiffness and the conceptual design for the bracing system.

关键词： Steel concentrically braced frames collapse mechanisms building codes

作者: E. Tapia-Hernández A. Tena-Colunga

作者单位: Dept. de Materiales, Universidad Autónoma Metropolitana, México City.

会议类型: 国际会议

会议名称: 14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）