Existing bridges on pile groups: In-situ measurement of stiffness
نویسندگان
چکیده
Retrofit of existing bridges founded on pile groups can be a challenging, costly, and time-consuming operation, especially when foundation interventions are required. The optimization retrofit design, hence such complicated interventions, may done by allowing controlled strongly nonlinear response associated energy dissipation mechanisms to develop during seismic loading. Taking advantage also offer improved performance. Nevertheless, prerequisite for the application rational design concepts is realistic evaluation actual stiffness capacity groups. latter estimated based in-situ soil testing (e.g. CPT) according current state practice, while former has been approached until now solely analytically numerically. This paper proposes first approach simplified estimation method measurements lateral vibration bridges. Estimates parameters obtained with equations motion, using bridge pier its system low-amplitude non-destructive dynamic A numerical study conducted evaluate efficiency proposed explore applicability in real-scale projects.
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ژورنال
عنوان ژورنال: Soil Dynamics and Earthquake Engineering
سال: 2021
ISSN: ['1879-341X', '0267-7261']
DOI: https://doi.org/10.1016/j.soildyn.2021.106797