Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

Nonlinear earthquake analyzes of structures are increasingly required by building codes and other seismic design regulations. An essential component of these analyses is that the geotechnical engineer has to provide the structural engineer with a set of strong motion time histories, typically three or seven sets containing two orthogonal horizontal components, and one vertical component if needed. The procedure for selecting the seed time histories and modifying them to match the design response spectrum involves several steps including development of seismological criteria, earthquake deaggregation analysis, and spectral matching. This procedure for selecting and modifying earthquake ground motions is explained based on three example projects in the San Diego region; i.e., seismic retrofit of an existing hospital complex, seismic retrofit of an existing historic bridge, and seismic design of a harbor facility. Challenges and identified issues encountered in practice will be discussed and some suggestions will be proposed.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

COinS
 
May 24th, 12:00 AM May 29th, 12:00 AM

Dealing in Practice with Selecting and Modifying Earthquake Ground Motions for Nonlinear Analysis

San Diego, California

Nonlinear earthquake analyzes of structures are increasingly required by building codes and other seismic design regulations. An essential component of these analyses is that the geotechnical engineer has to provide the structural engineer with a set of strong motion time histories, typically three or seven sets containing two orthogonal horizontal components, and one vertical component if needed. The procedure for selecting the seed time histories and modifying them to match the design response spectrum involves several steps including development of seismological criteria, earthquake deaggregation analysis, and spectral matching. This procedure for selecting and modifying earthquake ground motions is explained based on three example projects in the San Diego region; i.e., seismic retrofit of an existing hospital complex, seismic retrofit of an existing historic bridge, and seismic design of a harbor facility. Challenges and identified issues encountered in practice will be discussed and some suggestions will be proposed.