Effects of coupling ratios on the behavior of coupled walls

Chung-Chan Hung, Wei Ting Lu

研究成果: Conference contribution

摘要

Coupled walls are often used in mid-rise and high-rise structural systems to provide adequate lateral stiffness and strength to resist earthquakes. A coupled wall is composed by two or more structural walls connected by coupling beams. Under severe earthquakes, coupling beams are expected to undergo large deformation reversals. Therefore, they have to possess sufficient strength and ductility capacity. The paper presented herein investigates the influence of coupling ratio on the seismic behavior of coupled walls using nine coupled walls with different designs; coupling ratio is defined as the proportion of the moment resistance generated by coupling actions to the overall overturning moment. The behavior of the various coupled walls is investigated using nonlinear pushover analysis. It is found that for coupled walls with small coupling ratios, the resulting coupling action might not be sufficient to connect individual structural wall, thus causing excessive seismic response. On the other hand, although the coupled walls that are designed to have a large coupling ratio can reduce the base moment demand, the resulting system behavior might not satisfy the preferred yield mechanism. Based on the analysis results, the paper suggests appropriate ranges of coupling ratios for coupled walls with different heights.

原文English
主出版物標題ISEC 2013 - 7th International Structural Engineering and Construction Conference
主出版物子標題New Developments in Structural Engineering and Construction
發行者Research Publishing Services
頁面1135-1140
頁數6
ISBN(電子)9810753551, 9789810753559
DOIs
出版狀態Published - 2013
事件7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013 - Honolulu, United States
持續時間: 2013 六月 182013 六月 23

Other

Other7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013
國家United States
城市Honolulu
期間13-06-1813-06-23

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

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