Seismic Evaluation of Traditional Timber Structures in Taiwan

Abstract eng:
The Taiwanese historic Dieh-Dou frames are prone to joint failures by element pull out or excessive rotation, during earthquake, as seen from reports and observations following the 1999 Chi-Chi earthquake. A series of laboratory tests were performed to obtain the actual value of rotational and translational stiffness and joint capacity, and a FE model of Dieh-Dou frame confirmed that these values fall within semi-rigid range very close to hinge behaviour. A parametric study indicates that rotational stiffness governs the overall displacements more than translational stiffness does. A non linear step by step analysis was performed to study the seismic response of these frames, where the model was updated at each step in accordance with the failure criteria. Results show that several elements pulled out or failed by exceeding rotational capacity in the early stage, especially in the corridor zone; this matches well with the observed failure mode of this building under the Chi-Chi earthquake confirming the accuracy of the methodology.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket