INELASTIC BEHAVIOR OF STEEL BOX COLUMNS WITH INTERNAL BRACES
碩士 === 國立中央大學 === 土木工程學系 === 85 === Hollow steel box section has been widely used in bridge pier construction due to its high material strength and significant capability in resisting flexural and torsional load. However, the thin-walled elements of the...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1997
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| Online Access: | http://ndltd.ncl.edu.tw/handle/21472347704329174893 |
| Summary: | 碩士 === 國立中央大學 === 土木工程學系 === 85 === Hollow steel box section has been widely used in bridge pier
construction due to its high material strength and significant
capability in resisting flexural and torsional load. However,
the thin-walled elements of the section are susceptible to local
buckling failure under the action of major earthquake. The
performance of a locally buckled section will deteriorate with
the continuing application of external load. Therefore, the
study of the characteristics of members in the post-buckling
range is essential to a safe design.1. This study is focused on
the behavior of hollow box sections with braces added
internally. The collapsible braces were designed to fracture in
tension and buckle under compression. It was found in the
experimental investigation that the buckling strength of
internally braced section was higher than the bare hollow
section. Ductility and post-buckling performance of braced
section was also significantly improved. Relationship between
brace stiffness and member performance was also investigated in
this study.
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