Investigation on the Seismic Capacity of Plane Irregular Reinforced Concrete Building Structures

• Main Authors: Yu-Hua Wu, 巫雨驊
• Other Authors: Chin-Sheng Kao
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/03207917116229030653

碩士 === 淡江大學 === 土木工程學系碩士班 === 101 === The disasters of previous earthquakes showed that most of the severe damages from the structures were happened to flat or irregular facade ones when the earthquake hit. The main cause was such structures often occur in seismic torsional deformation and stress concentration. However, it is unavoidable that the plane irregularities keep appearing in the structures of buildings under the rising economy. Furthermore, as Taiwan is located on the Pacific seismic zone, the capacity of flat irregular building structures when the earthquake strikes becomes a topic which is worthy of study. For the irregular plane reinforced concrete structures in this thesis, it takes the concave corners and quality two kinds of sixth floor building structure as an example. First, it conducts with the structural analysis and design, and then proceeds with pushover analysis for seismic capacity evaluation. At the same time, analyzing both the irregular seismic capacity and the impact, which are compared to different eccentricity and vertical force, different dimension of the beam cross-section and different cross-sectional dimensions of the planar column. In conclusion, the above process are in order to comprehend the influences for structural seismic capacity of different effect factors, as well as the general seismic capacity evaluation mode of assessing the applicability in such structural seismic capacity. According to the result of the study, different eccentricity and vertical force distribution on different structural seismic capacity analysis results leads to different degrees of impact. Hence, the seismic capacity analysis should be discreetly chosen. In addition, the extension of beam and column section may increase the seismic capacity of building structure. Nevertheless, the extension of the beam cross-section dimensions of toughness may decrease the capacity of building structures while the extension of the column section consolidated the toughness capacity of building structure. The results of this study are available for engineering practitioners and the academia as a reference.