Proposed methodology on seismic risk assessment of movable and non-fixed equipment inside a medical facility: A case study: San Juan De Dios Hospital

• Main Authors: Almero, Glenn S., Costelo, Joseph Angelo P., Manubag, Alyssa Beatriz O., Zialcita, Stephanie A.
• Format: text
• Language: English
• Published: Animo Repository 2017
• Subjects: Earthquake hazard analysis > Philippines
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/6759
• Institution: De La Salle University

Metro Manila is exposed to the Marikina Fault Valley system. The East and West Valley Faults, according to PHILVOCS, can generate earthquakes of magnitudes 6.2 to 7.2, respectively. According to recent studies, the effects of the ensuing ground motion can be disastrous. Thousands of people could die with damage to properties estimated to reach 1.8 to 2.3 trillion pesos. In a post-earthquake scenario, affected people depend on the quick recovery of lifetime systems such as hospitals and its supporting facilities. In order to ensure the functionality, resilience and serviceability of a medical facility after a large magnitude earthquake, assessment of the structural, non-structural, supporting facilities as well as non-fixed and movable equipment within the facility is necessary. In this regard, this research focuses on assessing the seismic risk of non-fixed and movable equipment inside the emergency room (ER), intensive care unit (ICU) and wards of the San Juan de Dios Educational Foundation, Inc. Hospital (SJDEFI). The primary motivation for this endeavor is that SJDEFI is a medical facility which is highly vulnerable considering it is one of the oldest hospitals in the country being constructed in 1578. The results of the probability of seismic hazard assessment (PSHA) revealed the following ground accelerations at the hospital site: (a) 10% probalility of exceedance in 50 years (MRI = 475 years) equal to 0.527g and, (b) 2% probability of exceedance in 50 years (MRI = 2,475 years) equal to 0.564g. After subjecting it to constant acceleration, the equipment's potential to overturn depends on the slenderness of the equipment since slender blocks has the potential to topple at lower accelerations. Rooms that are subjected to constant acceleration will experience significant damage when subjected to 0.5g to 0.6g acceleration and will be extensively damage at magnitudes of 0.8g or higher.