Seismic Response of Two Specific Sites in the New Madrid Seismic Zone

Liu, Wanxing; Stephenson, Richard W.

doi:10.1061/40744(154)161

Cited by 3 publications

(3 citation statements)

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“…Design of structures in NEA with a natural period in this range will benefit from the lower design spectral acceleration estimated by a SSGMRA compared to those estimated using the general procedure. This attenuation is also consistent with previous Mississippi Embayment SSGMRA research (Cox et al 2012, Liu and Stephenson 2004, Malekmohammadi and Pezeshk 2015, Zheng et al 2010).…”

Section: -D Site Response Analysis Resultssupporting

confidence: 91%

“…NL analysis can better predict soil behavior under large strains from strong ground motions at soft soil sites, because it accounts for changes in soil properties at each time step (Kim et al 2016). However, EQL analysis is still the most common method in practice (Rathje et al 2010) and has proved to be valuable for studies within the NMSZ (Liu and Stephenson 2004).…”

Section: Site Response Methodologymentioning

confidence: 99%

“…The thick sedimentary deposits in NEA are expected to damp out high-frequency seismic waves, posing little threat for amplification of short-period waves like those seen in the Missouri River Flood Plain (Cox et al 2012). Liu and Stephenson (2004) conducted site response for two bridge sites in the Missouri Boot-heel, where subsurface soils are more than 600 m thick. They demonstrated the importance of using both equivalent linear (EQL) and nonlinear (NL) site response analyses and the effects of deep soil deposits that cause period migration from short to long periods.…”

Section: Introductionmentioning

confidence: 99%

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Cost Savings of Implementing Site-Specific Ground Motion Response Analysis in the Design of Short-Period Mississippi Embayment Bridges

Wood

Baker

2018

Earthquake Spectra

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Deep dynamic site characterization and a site-specific ground motion response analysis (SSGMRA) were conducted for a bridge site in Monette, Arkansas. The SSGMRA indicated the design acceleration response spectrum determined using the American Association of State Highway and Transportation Officials (AASHTO) general seismic procedure could be reduced by one third for the short-period range due to attenuation of the short-period ground motions. The steel girder pile-bent bridge, originally designed using the AASHTO general seismic design procedure, was redesigned using the updated seismic demands estimated from SSGMRA. A cost-savings analysis was then conducted to determine the potential savings associated with conducting the SSGMRA. By designing based on the results of the SSGMRA, a potential gross savings of $205,000, or 7% of the original bridge construction cost, could be achieved for the study bridge. Items that contributed most to the cost savings were the pile and embankment construction.

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Section: -D Site Response Analysis Resultssupporting

confidence: 91%