A research on post earthquake seismic evaluation of buildings using two secure cameras

• Main Authors: Wel-Cheng Chao, 趙偉丞
• Other Authors: Ting-Yu Hsu
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/9amzpz

碩士 === 國立臺北科技大學 === 土木工程系土木與防災碩士班 === 105 === Fast seismic assessment of a structure after an earthquake can facilitate recovery of operation and therefore improve resilience of the structure. For the facility that plays key roles of rescuing or refuge centers (such as hospitals, power facilities etc.) or high-value facilities (such as high-tech factories, financial centers, etc.), immediate operation again right after disrupt due to an earthquake for these structure is critical. Although many approaches have been proposed, they usually require additional measurement sensors and systems. However, since many buildings are already equipped with surveillance monitoring systems with sufficient luminance, using these existing equipments to extract story drift ratio from recorded images to evaluate building damage during an earthquake should be well-accepted by building owners. This proposed new approach is verified using shaking table experiments of a twin tower buiding. Commercial surveillance cameras are installed in the buildings and story drift ratios during earthquakes are used to evaluate damage level. The results are compared to the one measured by LVDT and accelerometers and feasibility of the proposed approach is verified.