Seismic vulnerability in the communities of San Lucas and San Juan Evangelista, a challenge for masonry construction

• DOI: https://doi.org/10.22533/at.ed.5157325141110

• Palavras-chave: Vulnerable, disasters, resilience, masonry.

• Keywords: Vulnerable, disasters, resilience, masonry.

• Abstract:

  Natural phenomena of geological, hydrological, and atmospheric origin—earthquakes, volcanic eruptions, floods, hurricanes, etc.—are events that represent latent dangers that are considered a threat to the social and economic development of a region or country. San Juan Evangelista and San Lucas Evangelista, ancient towns in Tlajomulco that make up the Franciscan Route, are part of the municipality's cultural heritage due to their handicrafts and Baroque churches, which are considered architectural monuments. However, their buildings, like their communities, are vulnerable to natural disasters such as those mentioned above, testing the resilience of society and government, which are failing in terms of comprehensive disaster management. Experience in field research in seismic engineering and disaster assessment highlights the need to update Guadalajara's Seismic Resistance Regulations, as it is possible to mitigate natural effects by applying the basic principles of seismic engineering. The objective of this work is to satisfactorily assess the seismic risk of a group of homes and to study h r corrective measures to reduce the risk that earthquakes can cause to structures made of unreinforced masonry and adobe. The methodology is that implemented by the Pacific Earthquake Engineering Research Center (PEER), as it is a robust tool for evaluating structural performance in terms of probabilistic analysis. The results obtained were the evaluation of the cost and recovery time of a structure that has been damaged by an earthquake and that can be discretized into two time intervals called rational and irrational. It was concluded that parallel repair was more expensive because it requires a significant number of workers to carry out rehabilitation activities. Congestion problems were also identified when the threshold of workers per unit area was exceeded. With regard to irrational factors, it was concluded that due to the complexity of the problem, a generic sequence was used, as shown in Figure 2.