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- Title
Experimental characterization of SDOF-embedded foundation systems with asymmetric interface condition.
- Authors
Arabpanahan, Mohammad; Mirghaderi, Seyed Rasoul; Ghalandarzadeh, Abbas
- Abstract
Various geometric and mechanical conditions for soil–foundation interfaces affect the superstructure and foundation responses against earthquake. As one of these conditions, 2D asymmetry of soil around the embedded rigid foundation is emphasized in the present paper. Accordingly, a reduced-scaled embedded foundation bearing SDOF superstructure is considered under slow lateral cyclic and dynamic shake table tests in design and service levels at 1 g state, and the system response is compared to those of systems containing surface and embedded foundations with symmetric condition. Test results show the asymmetry in the moment–rotation response curve for system with asymmetric soil condition in static state. While for dynamic response, the behavior under harmonic excitation with the design amplitude level is close to one of system with surface foundation. In addition, the foundation moment capacity of nonlinear dynamic response can be estimated properly through theoretical expression for foundation with asymmetric condition. Moreover, the rocking behavior in two-way excitation causes significant loss of superstructure response relative to the foundation in all three cases.
- Subjects
BUILDING foundations; SHAKING table tests; DESIGN services; EARTHQUAKES; TEST design
- Publication
Acta Geotechnica, 2024, Vol 19, Issue 5, p2669
- ISSN
1861-1125
- Publication type
Article
- DOI
10.1007/s11440-023-02135-5