Kou kouzou rombunshuu
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Study on Causes of Damage in Steel Lohse Bridge due to Hyogo-ken Nambu Earthquake by Dynamic Response Analysis
Hiroshi ZUIToshiyuki KITADAHiroshi NAKAITaiichi KAGAYAMA
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1998 Volume 5 Issue 18 Pages 1-10

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Abstract

Extensive damage was induced due to the Hyogo-ken Nambu Earthquake in the Rokko Island Bridge. The pivot shoes in the south side of the bridge were collapsed and the superstructure fell off from the shoes down to the framed pier and moved to the east side . The transverse displacement caused by the lateral movement was about 3 m. Some of the upper lateral bracings connecting two plane arch ribs were buckled. Dynamic response analyses are carried out to examine the causes of these damages. The results show that the buckling of the upper lateral bracings was caused by the lateral movement and the inclination of the superstructure.

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© Japanese Society of Steel Construction
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