In order to understand the seismic performance of weir structure under seismic events, concrete weir structure with infinite foundations was modeled in ABAQUS. Additionally, this study conducted the three different design response spectra based on KBC 2009, ASCE 7-05, and EuroCode 8. The results from numerical analyses showed that the seismic behavior of weir structure subjected to seismic ground motions was sensitive to natural frequency and mass participation factors.

This study presented the seismic performance of weir structures with infinite foundations subjected to seismic ground motions, rather than finite soil foundation to avoid the reflection of seismic wave propagation at the mesh boundaries. The analytical model of weir structures was developed in ABAQUS　platform and then the seismic performance of concrete weir structure was evaluated through design response spectrum (KBC 2009). It was revealed that the maximum stresses obtained from infinite models was significantly increased, in comparison to the finite models.

In this study, wind fragility for anchor systems installed at sign structures was developed through Monte Carlo simulation method. The fragility is a conditional limit state probability, presented as a function of the 3-second gust wind speed, based on a relation between statistics of wind loads and anchor system resistances. Advertisement sign attached to concrete wall structure was investigated using probabilistic approach with consideration of anchor type, exposure category, and wind directionality. The results showed that the failure due to tension on anchor bolt was dominant and occurred at a very high wind speed. The fragility methodology described in this paper can be used to develop performance-based design guidelines for advertisement structure in high wind regions as well as to provide information on which to base structural safety or expected loss assessments.

This study presents the seismic safety evaluation of weir structures subjected to earthquakes. In order to conduct the numerical analysis using KBC 2009 design spectrum, simple linear elastic 2D plane strain Finite Element (FE) model was modeled in ABAQUS. the results obtained from numerical analysis noted that the weir structure was more sensitive to tensile stress than compressive stress.