A STUDY ON SEISMIC UPGRADING DESIGN OF THE ANCHOR-BOLT OF THE EXPOSED-TYPE COLUMN BASE IN EXISTING OLD STEEL BUILDINGS

Akira MATSUO; Kiichiro SAWADA; Hirokuni KATO; Yoshinobu FUJITANI; Takao TAKAMATSU; Hiroyuki TAMAI

doi:10.11273/jssc.17.68_23

Akira MATSUO, Kiichiro SAWADA, Hirokuni KATO, Yoshinobu FUJITANI, Takao TAKAMATSU, Hiroyuki TAMAI

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Keywords: Seismic Upgrading, Exposed-type Column Base, Upgrading Design, Deformation Capacity

JOURNAL FREE ACCESS

2010 Volume 17 Issue 68 Pages 68_23-68_28

DOI https://doi.org/10.11273/jssc.17.68_23

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Abstract

In the preceding researches authors have proposed the seismic upgrading method of an anchor-bolt in an exposed-type column base in the existing old steel buildings and the tension test of the upgraded anchor-bolt showed enough upgrading effect. In this paper an experimental test of exposed-type column base using such upgraded anchor-bolts is performed and upgrading effect is recognized, and it is shown that the exposed-type column bases using such upgraded anchor-bolts could satisfy the rotation capacity demanded in the structural design.

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