Dynamic Analysis of Steel Braced Reinforced Concrete frames

سال انتشار: 1393
محل انتشار: دومین کنگره بین المللی سازه ، معماری و توسعه شهری
کد COI اختصاصی: ICSAU02_0566
زبان مقاله: انگلیسی
تعداد مشاهده: 661

نویسندگان

Msc, Civil Engineering, Sistan and Baluchestan University

چکیده

Steel bracing of RC frames has received some attention in recent years both as a retrofitting measure to increase the shear capacity of the existing RC buildings and as a shear resisting element in the seismic design of new buildings. An important consideration in the design of steel-braced RC frames is the level of interaction between the strength capacities of the RC frame and the bracing system. This interaction is caused mainly as a result of the modifying effects of brace-frame connections and the manner in which the two systems share the applied load. The interaction manifest itself in the notion that the strength capacity of the brace-frame system is found to be different to that obtained from the direct summation of the strength capacities of the brace and the frame, calculated separately. In this paper, results of experimental investigations aimed at evaluating the level of interaction between bracing system and RC frame are discussed. Based on these results the modifying effects of connections on the level of interaction between the two systems capacities are evaluated. The results of this investigation would enable the design engineers to conduct a more accurate and economical design of braceframe system.

کلیدواژه ها

Reinforced concrete, Braced RC frames, cyclic load tests retrofitting

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