Effects of coupling ratios on the behavior of coupled walls

Chung-Chan Hung, Wei Ting Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationISEC 2013 - 7th International Structural Engineering and Construction Conference
Subtitle of host publicationNew Developments in Structural Engineering and Construction
PublisherResearch Publishing Services
Pages1135-1140
Number of pages6
ISBN (Electronic)9810753551, 9789810753559
DOIs
Publication statusPublished - 2013
Event7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013 - Honolulu, United States
Duration: 2013 Jun 182013 Jun 23

Other

Other7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013
CountryUnited States
CityHonolulu
Period13-06-1813-06-23

Fingerprint

Earthquakes
Seismic response
Nonlinear analysis
Ductility
Stiffness

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Hung, C-C., & Lu, W. T. (2013). Effects of coupling ratios on the behavior of coupled walls. In ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction (pp. 1135-1140). Research Publishing Services. https://doi.org/10.3850/978-981-07-5354-2-St-44-117
Hung, Chung-Chan ; Lu, Wei Ting. / Effects of coupling ratios on the behavior of coupled walls. ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction. Research Publishing Services, 2013. pp. 1135-1140
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Hung, C-C & Lu, WT 2013, Effects of coupling ratios on the behavior of coupled walls. in ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction. Research Publishing Services, pp. 1135-1140, 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013, Honolulu, United States, 13-06-18. https://doi.org/10.3850/978-981-07-5354-2-St-44-117

Effects of coupling ratios on the behavior of coupled walls. / Hung, Chung-Chan; Lu, Wei Ting.

ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction. Research Publishing Services, 2013. p. 1135-1140.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Hung C-C, Lu WT. Effects of coupling ratios on the behavior of coupled walls. In ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction. Research Publishing Services. 2013. p. 1135-1140 https://doi.org/10.3850/978-981-07-5354-2-St-44-117