Structural behavior of traditional Dieh-Dou timber main frame

Sok Yee Yeo, Kohei Komatsu, Min Fu Hsu, Yu Lin Chung, Wen Shao Chang

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Under different combinations of horizontal and vertical loads, a total of three quasi-static cyclic tests were conducted to investigate the structural behavior of the Dieh-Dou timber frame. Typical deformation patterns include column rocking, joint rotation around the primary beam-column and column Dou-column regions, vertical shear around the column mortise, embedment around primary beam-column regions, and vertical shearing around the mortise regions of the Dou members. Visible deformation generally began from 1/30 rad onward. The column-restoring force contributed mainly to the frame’s moment resistance when displacement is small. When frame deformation exceeds 1/50 rad, bending moment from the primary beam dominated the global restoring force. Hence, the column-restoring force and the primary beam-column connection generally undertake the primary moment-resisting mechanism while the complex bracket structures above the primary beam play a secondary role. Based on the embedment theory and semi-rigid spring concept, a new theoretical model was developed to estimate the global behavior of the Dieh-Dou main frame. Although the prediction tends to be on the conservative side, the predicted model is generally in good agreement with the observed results.

Original languageEnglish
Pages (from-to)555-577
Number of pages23
JournalInternational Journal of Architectural Heritage
Issue number4
Publication statusPublished - 2018 May 19

All Science Journal Classification (ASJC) codes

  • Conservation
  • Architecture
  • Visual Arts and Performing Arts


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