PERFORMANCE-BASED DESIGN FOR SEISMIC STRENGTHENING OF RC FRAMES USING STEEL CAGING AND ALUMINUM SHEAR YIELDING DAMPERS
Gravity-load designed RC buildings with open ground-story are generally considered as seismic-deficient in terms of lateral strength, stiffness, drift capacity, and energy dissipation potential. This paper evaluates effectiveness of two strengthening techniques involving external steel cage for strengthening of ground-story columns and aluminum shear panels for dissipation of seismic energy. A performance-based method is developed to design various elements of the proposed strengthening schemes, based on balancing the input energy due to earthquakes to the energy dissipated through plastic hinges and aluminum panels for a target yield mechanism. Nonlinear static and time-history analyses of strengthened frames verified excellent seismic performance of strengthened frame in terms of enhanced lateral strength, stiffness, and energy dissipation and reduced damages in RC frame members under selected ground motions.
Seismic strengthening RC frame Performance-based design Steel caging Aluminum Shear link Open ground-story
D. C. Rai D. R. Sahoo
Associate Professor,Dept. of Civil Engineering,Indian Institute of Technology Kanpur,Kanpur,India Doctoral Scholar,Dept. of Civil Engineering,Indian Institute of Technology Kanpur,Kanpur,India
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）