Shear-wall dominant reinforced concrete buildings constructed with tunnel-form technique are prevalently constructed in regions with high seismicity due to their ease of construction and inherent resistance to lateral forces. However, the current seismic codes and the design provisions constitute inadequate guidelines for the earthquake-resistance design of these buildings. In particular, the prediction of their fundamental periods via current empirical expressions yields not only erroneous results, but also ignores soil-structure interaction (SSI) effects. For the objective of understanding their dynamic characteristics, a series of eigen analyses is conducted with and without considering SSI effects. The soil effects on foundations are represented by linear translational and rotational winkler springs, and rigidities of the springs are computed from the foundation size and the uniform soil compressibility. An ensemble of 140 different shear-wall dominant buildings with varying heights is simulated in three-dimensions considering four different soil conditions. It is proven that the vibration periods and the mode shapes of the shear-wall dominant buildings may change depending on the different soil conditions. Based on the results of the three dimensional fi nite element analyses, a set of new empirical equations was proposed to predict the fundamental periods of the shear-wall dominant buildings accounting the SSI effects.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.