| Summary: | 碩士 === 國立臺灣大學 === 土木工程學研究所 === 105 === To fulfill the demand of privacy and serviceability, huge amount of wall members were used in traditional reinforce concrete residential building in Taiwan. Most of them are walls with openings. Due to the prevailing of frame system, the shear strength of those infilled wall are strongly influenced by the boundary elements. Therefore, for the building design and retrofitting, the effect of boundary elements on the shear strength of infilled walls cannot be neglected.
The objective of this research is to propose a model of lateral load displacement curve of RC shear wall. For the evaluation of seismic capacity of walls with openings, the proposed model can first define the critical segment, then construct the interaction relationship between wall segment and boundary elements, and finally form lateral load deflection curve of the wall. The proposed lateral load displacement curve can be used for the pushover analysis.
Literatures show that the influential effect of boundary elements to shear capacity of walls is significant. AIJ code also defines some parameters of boundary element into design shear strength equation of shear wall. The lateral load displacement curve proposed by this research includes the contribution of boundary elements to shear capacity of shear wall. Therefore, the proposed model provides better estimations for shear walls with boundary elements.
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