Kou kouzou rombunshuu
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
Reinforcement design of existing non-conformed steel buildings using STKR columns (Reinforcement with steel plates and steel angles)
Tatsuya NAKANOTakashi HASEGAWAKengo NAGAMINE
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2014 Volume 21 Issue 81 Pages 81_13-81_26

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Abstract

In 2007, the building standard law of Japan was revised and a specification of column overdesign factor (COF) was added in case of square tube columns. Our researches deal with existing non-conformed steel buildings using STKR columns according to being not satisfied with the specification of COF. In this paper, in order to enhance the full-plastic moment of column, reinforcement with steel plates and steel angles are proposed. An experimental verification of reinforced columns was conducted to investigate elasto-plastic behavior and confirm the validity of reinforcement design method. As a result, specifications for providing required bending moment to STKR columns were clarified.

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© 2014 Japanese Society of Steel Construction
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