Cyclic Lateral Load Response of Bridge Column-Foundation-Soil Systems in Freezing Conditions

Mechanical properties of seasonally frozen and permafrost soils at high strain rate

“…Some structural damage during earthquakes has appeared to be directly attributed to the occurrence of frozen ground and ice formation. For example, recent research in Alaska and Iowa has clearly established the significance of frozen ground effects on the seismic response of bridge foundations (Sritharan et al, 2007;Suleiman et al, 2006;Wotherspoon et al, 2010;Xiong and Yang, 2008;Xu et al, 2011;Yang et al, 2007;Yang et al, 2008). It is very important to assess the effects of frozen soil on the seismic performance of superstructures.…”

Seismic design of drilled shafts in clay

“…The developed method was able to predict the secant stiffness to the first yield location within 10%. Yield and ultimate limit states were within 10% of the detailed analyses performed in LPILE (Reese et al, 2004) and correlated well with the full-scale experimental testing performed by Suleiman et al (2006). The overall comparisons included multiple displacement and rotation factors as well as local curvatures developed near the maximum moment location.…”

“…These principles state that the designer should allow flexural yielding while preventing an undesirable failure mode such as a brittle failure. In the exploratory research that examined the performance of continuous columns supported on drilled shaft foundations, Suleiman et al (2006) drew the following conclusions regarding the lateral load response of a full-scale test in wintry conditions with respect to summer conditions:…”

“…Although ignored in the development, it is clear that wintry conditions significantly alter the effects of SFSI. The effects were previously mentioned with the quick overview of the research performed by Suleiman et al (2006) and Sritharan et al (2007) at Iowa State University. These challenges as well as others are expanded on in the report that follows in the literature review provided in Chapter 2 and the examination of common methods used in practice provided in Chapter 3.…”

“…The exploratory research program consisted of analytical and experimental components. Following completion of the experimental investigation (Suleiman et al, 2006) the analytical study was performed by Sritharan et al (2007).…”