Performance Evaluation of a Dual-Level Design Using 1994 Northridge Earthquake Records

Elwood, K.J.; Wen, Y.K.

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https://hdl.handle.net/2142/14225 Copy

Description

Title

Performance Evaluation of a Dual-Level Design Using 1994 Northridge Earthquake Records

Author(s)

• Elwood, K.J.
• Wen, Y.K.

Issue Date

1995-05

Keyword(s)

• Dual-level seismic design
• Earthquake engineering
• Earthquakes -- Northridge, 1994
• Reinforced concrete

Abstract

A Dual-level seismic design procedure, in which a building structure is designed for both an ultimate and a serviceability level force, is proposed and used to design a seven story RC moment frame. The performance of the structure is monitored by a nonlinear pushover analysis and the design is adjusted accordingly. For comparison, a seven story RC moment frame is also designed according to the 1991 NEHRP provisions .. The two designs are modeled using DRAIN-2DX and subjected to 84 strong ground motion records from the 1994 Northridge Earthquake. Response quantities for the two designs, such as damage indices and global and local drifts, are compared. Using this data, the reliabilities of the two designs at different response levels, given an event similar to the Northridge earthquake, are evaluated. It is concluded that the Dual-level design procedure results in better drift and damage control for severe ground motions that force the building into the inelastic range. Thus, excessive structural and non-structural damage may be avoided with little or no interruption to the building occupation after the earthquake.

Publisher

University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Civil Engineering Studies SRS-601

Type of Resource

text

Language

en

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http://hdl.handle.net/2142/14225

Sponsor(s)/Grant Number(s)

National Earthquake Hazards Education Program under National Science Foundation Grant CMS 94-15726

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