Sponsor: CISR

PI: Patricia Clayton

A recent increase in the number of low-magnitude earthquakes across the state of Texas has raised concerns over the seismic risk to the state’s building stock. Following recent earthquakes in the Texas and Oklahoma regions, the most common types of damage observed included damage to chimneys and masonry veneers in residential construction. In Texas, a region with historically low seismicity, brick and stone veneers are very common. The fact that anchorage requirements and inspection are often loosely enforced in residential construction sectors, make masonry veneers on residential homes particularly vulnerable to seismic damage. This project aims at investigating the seismic vulnerability of non-seismically detailed masonry veneers, including consideration of common anchorage installation errors that have been observed in the region. This work utilizes computational models of masonry veneer anchors and wall panels that are based on experimental data from past studies. Models will be subjected to a suite of ground motions from the Oklahoma, Texas, and Kansas to investigate how characteristics of seismic hazards particular to this region may affect seismic vulnerability compared to other commonly considered Central and Eastern U.S. seismic hazards (e.g., the New Madrid seismic hazards). Fragility curves developed from this study will be used to investigate potential effects of earthquake scenarios across the state.