Graduate Thesis Or Dissertation | Physical Modeling of Progressive Damage and Failure of Wood-Frame Coastal Residential Structures Due to Waves and Surge Forces | ID: qb98mn641 | translation missing: de.hyrax.product_name
A physical model study was performed to examine the forces and response of 1:6 scale wood-frame coastal residential structures subjected to storm surge and waves. An on-grade and an elevated specimen were tested and exposed to regular waves with varying water depths and wave heights to simulate Hurricane Sandy’s conditions. Results show that through careful design, wood-frame model specimens can be constructed to behave similarly to full-scale structures. Vertical pressures and forces on the elevated specimen were also examined in this study and were significantly affected by wave height, air gap, and water depth. The results indicate that maximum vertical forces are positively correlated to wave height and water depth and negatively correlated to air gap. Breaking type also affects vertical forces. Nonbreaking waves correlated to relatively small vertical forces and waves breaking directly on the specimen correlated to peak vertical forces. Maximum vertical forces were also found to occur out of phase with the crest of an incoming wave and lags slightly behind the crest. An uplift pressure distribution equation was developed for an elevated residential structure dependent on wave height and air gap. The equation is generally conservative when compared to other data sets. The results and data presented in this thesis increase the current knowledge of the interaction between waves and residential structures, which may be useful to increase the resiliency of coastal communities.
The material is this thesis is based upon work partially supported by the US Department of Homeland Security under award No. 2015-ST-061-ND0001-01 and by the National Science Foundation under awards 1519679 and 1661315. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the Department of Homeland Security or the National Science Foundation.