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| Author | : Aidcer L. Vidot Vega |
| Publisher | : |
| Total Pages | : 226 |
| Release | : 2004 |
| Genre | : Bridges |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 91 |
| Release | : 2004 |
| Genre | : Earthquake hazard analysis |
| ISBN | : |
| Author | : Alok Goyal |
| Publisher | : |
| Total Pages | : 448 |
| Release | : 1989 |
| Genre | : Briones Dam (Calif.) |
| ISBN | : |
| Author | : Nawawi Chouw |
| Publisher | : CRC Press |
| Total Pages | : 190 |
| Release | : 2017-08-25 |
| Genre | : Technology & Engineering |
| ISBN | : 1351665693 |
Seismic Performance of Soil-Foundation-Structure Systems presents invited papers presented at the international workshop (University of Auckland, New Zealand, 21-22 November 2016). This international workshop brought together outstanding work in earthquake engineering that embraces a holistic consideration of soilfoundation-structure systems. For example, the diversity of papers in this volume is represented by contributions from the fields of shallow foundation in liquefiable soil, spatially distributed lifelines, bridges, clustered structures (see photo on front cover), sea floor seismic motion, multi-axial ground excitation, deep foundations, soil-foundation-structurefluid interaction, liquefaction-induced settlement and uplift with SFSI. A fundamental knowledge gap is manifested by the isolated manner geotechnical and structural engineers work. A holistic consideration of soil-foundation-structures systems is only possible if civil engineers work collaboratively to the mutual benefit of all disciplines. Another gap occurs by the retarded application of up-to-date research findings in engineering design practices. Seismic Performance of Soil-Foundation-Structure Systems is the outcome from the recognized need to close this gap, since it has been observed that a considerable delay exists between published research findings and application of the principles revealed by the research. Seismic Performance of Soil-Foundation-Structure Systems will be helpful in developing more understanding of the complex nature of responses these systems present under strong earthquakes, and will assist engineers in closing the gaps identified above.
| Author | : Jaime A. Mercado |
| Publisher | : |
| Total Pages | : 175 |
| Release | : 2021 |
| Genre | : |
| ISBN | : |
Soil-structure interaction (SSI) effects are relevant for the seismic analysis of tall buildings on shallow foundations since the dynamic behavior of structures is highly affected by the interaction between the superstructure and supporting soils. As part of earthquake-resistant designs of buildings, considering SSI effects in the analysis provides more realistic estimates of its performance during a seismic event, particularly when both the structure and soil undergo large demands that can compromise serviceability. Oversimplifications of structural or soil modeling in the analysis introduces variability and biases in the computed seismic response.
| Author | : Jonathan P. Stewart |
| Publisher | : |
| Total Pages | : 760 |
| Release | : 1997 |
| Genre | : Accelerograms |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 1985 |
| Genre | : |
| ISBN | : |
The seismic design of secondary systems such as piping requires knowledge of the motions at various locations of the primary structures. When the structure or buildings are subjected to earthquake-like excitations at the ground level, the responses at different floor levels may be quite different from each other. This difference depends on the building and soil frequency characteristics, the characteristics of the input signals, the damping levels, and soil-structure interaction effects. When multiple independent excitations are considered in the analysis of piping systems, the responses can be considered to have two distinct components. One is due to the inertia of masses alone (dynamic component) and the other is due to the time varying differential motion of the support points (pseudo-static component). To address this problem, a sample of six piping systems, two of which were subjected to thirty-three earthquakes, were studied to develop a statistical assessment of different methods of predicting the dynamic, pseudo-static and combined response. Both uniform and independent support motion methods were considered. The results are obtained in tabular form. The mean and standard deviation for the two piping systems subjected to thirty-three earthquakes were obtained to allow an assessment of the adequacy and level of conservatism associated with each method. These results are also displayed in graphical form for selected, critical locations in the piping systems. The limitations of each method and recommendations are discussed.
| Author | : Wen-Hwa Wu |
| Publisher | : |
| Total Pages | : 174 |
| Release | : 1994 |
| Genre | : Earthquake engineering |
| ISBN | : |
| Author | : Q. A. Hossain |
| Publisher | : |
| Total Pages | : 5 |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
While developing seismic analysis models for buildings that support safety-related equipment, a number of issues should be considered to ensure that the input motions for performing seismic qualification of safety-related equipment are properly defined. These considerations are listed and discussed here with special attention to the effect and importance of the interaction among the foundation soil, the building structure, the equipment anchors, and the equipment structure. Typical industry practices are critically examined to assess their adequacy for determining the input motions for equipment seismic qualification. The features that are considered essential in a soil-structure interaction (SSI) model are described. Also, the effects of inappropriate treatment or representation of these features are discussed.
| Author | : Luis Gerardo Buitrago Goyez |
| Publisher | : |
| Total Pages | : 210 |
| Release | : 2017 |
| Genre | : Earthquake engineering |
| ISBN | : |
The importance of soil-structure interaction (SSI) effects on the seismic response of buildings has been long recognized and has been researched for over 40 years. However, SSI analysis has only been applied in a few building projects because the fixed base condition is considered to provide a conservative estimation for the response of buildings under seismic loads. This assumption of a fixed base condition adopted by practitioners is not always conservative or cost-effective, especially for rigid buildings over soft soils. Additionally, for the case of ductile steel frames with eccentric configurations, the influence of SSI on their seismic performance has not been investigated. In this study, the seismic performance of eccentrically braced frames (EBFs) considering SSI effects is investigated using analytical models. Background information and modern guidelines available to consider SSI in the seismic analysis of buildings are presented and discussed. Following, a 3-story building with EBFs on shallow foundations is analyzed with and without SSI. The beam on Winkler foundation approach is used to model the linear and nonlinear soil-foundation interface behavior, considering linear-elastic, elastic-perfectly plastic, and nonlinear springs. Inter-story drifts, residual drifts, link rotations, and axial load column demands were similar for frames with flexible base and fixed base conditions when elastic and elastic-perfectly plastic springs were used. However, when nonlinear springs were used, frames with a flexible base showed a significant reduction in their responses in comparison to those observed for the fixed base condition. As a result, a reduction in frame member sizes was possible and justified through SSI analyses.
