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Title: Full-Scale Experimental Verification of Soft-Story-Only Retrofits of Wood-Frame Buildings using Hybrid Testing

Source: Journal of Earthquake Engineering

Author(s)Jennings, Elaina; van de Lindt, John W.; Ziaei, Ershad; Bahmani, Pouria; Park, Sangki; Shao, Xiaoyun; Pang, Weichiang; Rammer, Douglas; Mochizuki, Gary; Gershfeld, Mikhail

Publication Year: 2015  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4714-3B

Abstract: The FEMA P-807 Guidelines were developed for retrofitting soft-story wood-frame buildings based on existing data, and the method had not been verified through full-scale experimental testing. This article presents two different retrofit designs based directly on the FEMA P-807 Guidelines that were examined at several different seismic intensity levels. The effects of the retrofits on damage to the upper stories were investigated. The results from the hybrid testing verify that designs following the FEMA P-807 Guidelines meet specified performance levels and appear to successfully prevent collapse at significantly higher seismic intensity levels well beyond for which they were designed. Based on the test results presented in this article, it is recommended that the soft-story-only retrofit procedure can be followed when financial or other constraints limit the retrofit from bringing the soft-story building up to current code or applying performance-based procedures.

Keywords: Soft-Story; Wood-Frame; Full-Scale Test; Retrofit; FEMA P-807; Hybrid Testing

Publication Review Process: Formally Refereed

File size: 1,068 kb(s)

Date posted: 08/13/2015

This publication is also viewable on Treesearch:  view
RITS Product ID: 73772
Current FPL Scientist associated with this product
Rammer, Douglas R.
Research General Engineer

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