Stochastic characteristics of seismic excitations at a non-uniform (rock and soil) site |
| |
Authors: | A Zerva WR Stephenson |
| |
Institution: | 1. Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA 19104, USA;2. GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand |
| |
Abstract: | This study analyzes data recorded at the dense array in the Parkway Valley, Wainuiomata, New Zealand, a small alluvial valley surrounded by graywacke outcrops. The array consisted of stations on both the sediment basin and the surrounding soft rock, with station separation distances pertinent for earthquake engineering applications. The array's configuration renders itself uniquely for the study of the spatial variation of seismic ground motions at sites with irregular topography for bridge response evaluations: the locations of the soft-rock stations surrounding the valley may be viewed as the locations of the bridge's abutments, and the locations of the stations in the basin as those of the bridge's intermediate piers. A further-away station, north-east of the valley, provided information on firm-rock data. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|