Structural Behavior Estimation of North Caloocan Doctors Hospital for an Imminent 7.2 Magnitude Earthquake

• 발행기관: 한국방재학회
• 저자명: Azotea, Marc Sinan B De Luna, Emmanuel M Tiburcio, Rodelio A.
• 간행물 정보: 『Journal of Disaster Management』Journal of Disaster Management Vol.1 No.3, 46~62쪽, 전체 17쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2016.07.31

영문 초록

Natural disasters are considered inevitable. However, the damage of which can be mitigated through proper implementation from countermeasures. In the Philippines it was reported by the Philippine Volcanology and Seismology (PHILVOCS) that an ominous 7.2 magnitude earthquake in the second quarter of 2015 will hit the capital region of the country, Manila. A 25 percent estimated damage is assumed to be incurred throughout the region both from public and private infrastructures. The foresighted event led to the materialization of this study which assesses the stability of one hospital, the North Caloocan Doctors Hospital (NCDH), in case of the said earthquake. Moreover, the conducted research determines the potentiality of the structure for Immediate Occupancy (IO) in accordance with the criteria set by ATC-40, a code which contains standards and specifications that was developed by the state of California for the evaluation of seismic performance of existing buildings. Also, emergence of plastic hinges on the support structures were also checked and evaluated. SAP2000 is a 3D modeling software which creates a scaled representation of the building given the required input parameters for the simulation of a nonlinear pushover analysis of the earthquake event. This was used in this research. After the simulation, results were then compared to ATC-40 for the evaluation of its structural performance level and stability. Both the x and y direction of the structure was observed and it showed that the global displacement produced for x and y are 0.199 meters and 0.145 meters, respectively. However, in order to meet the objectives of the study, standards from ATC-40 for IO in terms of displacement should not exceed a value of 0.166 meters in any direction. The output clearly implies that the x-direction exceeded the given value, therefore making the structure not suitable for the level of performance the researchers wanted. Furthermore, during the pushover analysis, plastic hinges were developed under cases of IO and Life Safety (LS) and non on the Collapse Prevention (CP). This positively signifies that the structure, after the impending earthquake would still be safe and readily accessible for many.

키워드

Pushover Analysis Magnitude 7.2 Earthquake ATC-40 Structural Behavior SAP-2000