Performance of Improved Ground and Earth Structures

Mitchell, James K.
Martin II, James R.
Olgun, C. Guney
Emrem, Canan
Durgunoglu, H. Turan
Çetin, Kemal Önder
Karadayilar, Turhan


Performance of seismic-isolated bridges in relation to near-fault ground-motion and isolator characteristics
Dicleli, Murat (SAGE Publications, 2006-11-01)
This paper investigates the performance of seismic-Isolated bridges (SIBs) subjected to near-fault (NF) earthquakes with forward rupture directivity effect (FRDE) in relation to the isolator, substructure, and NF earthquake properties, and examines some critical design clauses in AASHTO's Guide Specifications for Seismic Isolation Design. It is found that the SIB response is a function of the number of velocity pulses, magnitude of the NF ground motion, and distance from the fault. Particularly, a reasonabl...
Practical Implementation of Generalized Force Vectors for the Multimodal Pushover Analysis of Building Structures
Alici, F. Soner; Sucuoğlu, Haluk (SAGE Publications, 2015-05-01)
A practical implementation of generalized multimodal pushover analysis is presented in this study, where the number of pushovers is reduced significantly in view of the number of modes contributing to seismic response. It has been demonstrated in two case studies that the reduced procedure for generalized pushover analysis is equally successful in estimating the maximum member deformations and forces under a ground excitation with reference to nonlinear response history analysis. It is further shown that th...
Forced Vibration Testing and Finite Element Modeling of a Nine-Story Reinforced Concrete Flat Plate-Wall Building
Çelik, Ozan Cem; Sucuoğlu, Haluk; Akyüz, Uğurhan (SAGE Publications, 2015-05-01)
Tunnel form buildings, owing to their higher construction speed and quality, lower cost, and superior earthquake resistance over that of conventional reinforced concrete buildings, have been widely used for mass housing, urban renewal, and post-earthquake reconstruction projects all over the world as well as in Turkey. However, there have been few dynamic tests performed on existing buildings with this structural system. This study investigates the dynamic structural properties of a typical nine-story reinf...
Empirical attenuation equations for vertical ground motion in Turkey
Kalkan, E; Gulkan, P (SAGE Publications, 2004-08-01)
In the aftermath of two destructive urban earthquakes in 1999 in Turkey, empirical models of strong motion attenuation relationships that have been previously developed for North American and European earthquakes have been utilized in a number of national seismic hazard studies.. However, comparison of empirical evidence and estimates present significant differences. For that reason, a data set created from a suite of 100 vertical strong ground motion records from 47 national earthquakes that occurred betwe...
Improved effective damping equation for equivalent linear analysis of seismic-isolated bridges
Dicleli, Murat (SAGE Publications, 2006-02-01)
In this study, an improved effective damping (ED) equation is proposed to obtain more reasonable estimates of the actual nonlinear response of seismic-isolated bridges (SIB) using equivalent linear (EL) analysis procedure. For this purpose, first the EL analysis results using AASHTO's ED equation is evaluated using harmonic and seismic ground motions. The effect of several parameters such as substructure stiffness, isolator properties, and the intensity and frequency characteristics of the ground motion are...
Citation Formats
J. K. Mitchell et al., “Performance of Improved Ground and Earth Structures,” Earthquake Spectra, pp. 191–225, 2000, Accessed: 00, 2020. [Online]. Available: