A New Buckling-Restrained Brace with a Variable Cross-Section Core
In this paper, a new type of buckling-restrained brace characterized by a variable cross-section core (BRB-VCC) is proposed and investigated. The practical design equations of the BRB-VCC are derived based on mechanical and mathematical theories. Six specimens are designed and tested to clarify the...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4620430 |
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| _version_ | 1832563276847775744 |
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| author | Liang Li Tianhua Zhou Junwu Chen Jianfeng Chen |
| author_facet | Liang Li Tianhua Zhou Junwu Chen Jianfeng Chen |
| author_sort | Liang Li |
| collection | DOAJ |
| description | In this paper, a new type of buckling-restrained brace characterized by a variable cross-section core (BRB-VCC) is proposed and investigated. The practical design equations of the BRB-VCC are derived based on mechanical and mathematical theories. Six specimens are designed and tested to clarify the mechanical behaviours of the BRB-VCC and to validate the reliability of the proposed equations. The test results show that (1) none of the specimens buckle under compression, as expected, and their ductilities and energy dissipation capacities are satisfactory; (2) the derived formulas are reliable and can be conveniently used in engineering practice; and (3) the yielding displacement of the BRB-VCC is approximately 70% that of the traditional TJ-1 buckling-restrained brace (BRB-TJ-1), which may yield earlier than the BRB-TJ-1 in concrete structures under the action of an earthquake. |
| format | Article |
| id | doaj-art-2a9b02a11dca485cb8d3ba8ab2902708 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-2a9b02a11dca485cb8d3ba8ab29027082025-02-03T01:20:28ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/46204304620430A New Buckling-Restrained Brace with a Variable Cross-Section CoreLiang Li0Tianhua Zhou1Junwu Chen2Jianfeng Chen3College of Civil Engineering, Chang’an University, Xi’an 710055, ChinaCollege of Civil Engineering, Chang’an University, Xi’an 710055, ChinaCollege of Civil Engineering, Chang’an University, Xi’an 710055, ChinaCollege of Civil Engineering, Chang’an University, Xi’an 710055, ChinaIn this paper, a new type of buckling-restrained brace characterized by a variable cross-section core (BRB-VCC) is proposed and investigated. The practical design equations of the BRB-VCC are derived based on mechanical and mathematical theories. Six specimens are designed and tested to clarify the mechanical behaviours of the BRB-VCC and to validate the reliability of the proposed equations. The test results show that (1) none of the specimens buckle under compression, as expected, and their ductilities and energy dissipation capacities are satisfactory; (2) the derived formulas are reliable and can be conveniently used in engineering practice; and (3) the yielding displacement of the BRB-VCC is approximately 70% that of the traditional TJ-1 buckling-restrained brace (BRB-TJ-1), which may yield earlier than the BRB-TJ-1 in concrete structures under the action of an earthquake.http://dx.doi.org/10.1155/2019/4620430 |
| spellingShingle | Liang Li Tianhua Zhou Junwu Chen Jianfeng Chen A New Buckling-Restrained Brace with a Variable Cross-Section Core Advances in Civil Engineering |
| title | A New Buckling-Restrained Brace with a Variable Cross-Section Core |
| title_full | A New Buckling-Restrained Brace with a Variable Cross-Section Core |
| title_fullStr | A New Buckling-Restrained Brace with a Variable Cross-Section Core |
| title_full_unstemmed | A New Buckling-Restrained Brace with a Variable Cross-Section Core |
| title_short | A New Buckling-Restrained Brace with a Variable Cross-Section Core |
| title_sort | new buckling restrained brace with a variable cross section core |
| url | http://dx.doi.org/10.1155/2019/4620430 |
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