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| Finite parametric analysis of high-strength steel eccentrically braced frame with corrugated replaceable link |
| Received:March 30, 2022 Revised:May 24, 2022 |
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| DOI：10.7511/jslx20220330001 |
| KeyWord:replaceable link eccentrically brace frame high strength steel parameter analysis seismic performance |
| Author | Institution |
| 李慎 |
西安理工大学 土木建筑工程学院, 西安 |
| 吴喜梅 |
西安理工大学 土木建筑工程学院, 西安 |
| 李晓蕾 |
西安理工大学 土木建筑工程学院, 西安 |
| 田建勃 |
西安理工大学 土木建筑工程学院, 西安 |
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| Abstract: |
| This paper proposed a new type of corrugated replaceable links and the plastic deformation is isolated in the links,and the flange and web bolt splicing connection with the frame beam by expanding the section,which is easy to realize the bolt elastic design,reduce the bolt slippage,and facilitate the link replacement after an earthquake.By setting a new type of variable section replaceable link in the eccentrically braced steel frame,combining the large elastic deformation range of high strength steel with the superior plastic deformation of the new type of replaceable link,a high strength steel eccentrically braced frame with variable section replaceable link is formed,and the ABAQUS software is used to simulate and verify the existing end plate connection replaceable link test specimen.The finite element model of the high strength steel eccentrically braced frame with variable section replaceable links was established,and the bearing capacity,stiffness,plastic rotation,plastic distribution and other force mechanisms of the structure were studied by cyclic loading.The effect of the variation of three parameters,namely the length of energy dissipation region (e),the combination of steel strength and the length of replaceable link (e'),on the seismic performance of the structure is considered. |
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