Multi-Hazard Risk and Asset Value Assessment of Heritage Buildings (Case Study in Iloilo City, Philippines)

Heritage buildings belong to the most vulnerable class of structures because of the material degradation and the lack of structural design present. With the increasing frequency and magnitude of disasters, the need to preserve heritage buildings is further underlined. The developed risk assessment method innovated the inclusion of the heritage building asset value as a component of the risk index. The risk assessment method considered the risks due to extreme wind, fire and earthquake. Using a rapid visual screening method, this preliminary assessment allows for the prioritization of several heritage buildings for deeper investigations and retrofitting procedures on the basis of the level of risk and ist asset value. In support to the initiatives of the Iloilo City government, the developed method was tested to about 30 heritage buildings in the said city. The study was able to create a shortlist of "prioritized" heritage buildings for preservation.