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Assessing building’s post-earthquake functional recovery accounting for utility system disruption

Resilient Cities and Structures 2023年第3期2卷 53-73页

作者： Negar Mohammadgholibeyki Maria Koliou Abbie B.Liel Zachry Department of Civil and Environmental Engineering Texas A&M UniversityCollege StationTX 77843United States Department of Civil Environmental and Architectural EngineeringUniversity of Colorado BoulderUnited States

Experience from past earthquakes has demonstrated the need to account for design goals beyond safety,known as functional recovery objectives,in the interest of community *** have been proposed in the literature to assess the post-earthquake functional recovery of a building,but without accounting for utility systems’disruption,which may be a key contributor to determining when a building is *** paper integrates a previously proposed probabilistic method for estimating the post-earthquake restoration of critical utility services with an individual building’s functional recovery assessment *** integration was performed by incorporating utilities into the building system fault trees embedded into a functional recovery framework for various building occupancies(residential and commercial office buildings).Once incorporated,the results are used to interrogate the functional recovery of a reinforced concrete building,and the recovery time results were presented for seven cases investigating contributing factors in the functional recovery results including the number of crews available for lifeline restoration,the effect of low-quality service on meeting tenant requirements for elevators,heating ventilation and air conditioning(HVAC),plumbing and electrical systems,consideration of fire watch,the effect of building seismic retrofit,as well as different cases of fragility functions for the lifeline *** showed that utility systems’disruption does not have a significant impact on the recoccupancy of a building because only one utility-dependent building system(fire suppression)is needed for the building’s *** reoccupancy,utility systems are significant for functional recovery,mainly at moderate hazard levels because,at these levels,lifeline networks could be damaged without significant building damage,such that the lifeline systems restoration *** with more restrictive tenant requirements are more sen

关键词： Post-earthquake functional recovery Utility service lifeline recovery Restoration time

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