Study on Energy Dissipation Mechanism and Collapse-Resistant Performance of RC Frame-Shear-Wall Structure under Strong Earthquake

Abstract:

Energy dissipation mechanism is very important for the structural collapse-resistant performance under strong earthquakes. Two reinforced concrete (RC) frame-shear-wall structures with different span-depth ratios in coupling beams were designed according to current Chinese seismic design code and then analyzed by nonlinear time-history analysis method under a serial of strong earthquake records. Based on the analysis results, energy dissipation mechanism and collapse-resistant performance of the two structures under strong earthquakes are studied. And the “strong wall limb-weak coupling beam” mechanism, which is achieved in the structure with larger span-depth ratio in coupling beams, is proposed to serve as the reasonable energy dissipation mechanism for RC frame-shear-wall structure. The damage of wall limb is controlled effectively under this energy dissipation mechanism, which leads to good collapse-resistant performance.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2550-2554
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2550
• Online since: October 2012
• Authors: Zhi Wei Miao, Zhao Yun Qiu, Yang Ming
• Keywords: Collapse-Resistant Performance, Energy Dissipation Mechanism, Nonlinear Time-History Analysis, RC Frame-Shear-Wall Structure

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