Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression
Width-thickness ratio was an important parameter for designing Concrete Filled Rectangular Steel Tube (CFRST). Welding longitudinal stiffener on the internal wall of steel pipe could delay the local buckling, which increased the limit of width-thickness ratio. If there was not enough stiffener and i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2020-01-01
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| Series: | Tehnički Vjesnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/361328 |
| _version_ | 1797207098739654656 |
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| author | Hongping Liu* Zhiheng Zhang Zhang Cheng Jin Wei Guoliang Zeng |
| author_facet | Hongping Liu* Zhiheng Zhang Zhang Cheng Jin Wei Guoliang Zeng |
| author_sort | Hongping Liu* |
| collection | DOAJ |
| description | Width-thickness ratio was an important parameter for designing Concrete Filled Rectangular Steel Tube (CFRST). Welding longitudinal stiffener on the internal wall of steel pipe could delay the local buckling, which increased the limit of width-thickness ratio. If there was not enough stiffener and its sectional dimension was too small, the local buckling of steel pipe would occur, inducing its bearing capacity seriously. If the stiffener sectional dimension was too large, concrete filled in steel tube would be broken up, which reduces its bearing capacity. To solve that problem, this paper studied local buckling of CFRST with longitudinal stiffener under axial compression and design of longitudinal stiffener. It established buckling analysis model, simplified local buckling analysis as calculating buckling load of thin plate clamped on loading side and unloading side under axial force. It deduced buckling load and buckling coefficient based on the principle of energy. The results showed that buckling mode depended on stiffening rigidity. Therefore, it put forward minimum stiffening rigidity ratio that controlled the stiffener design. This paper also came up with a formula to calculate minimum stiffening rigidity ratio. It provided guidance on designing number, sectional dimension and material performance. |
| first_indexed | 2024-04-24T09:17:31Z |
| format | Article |
| id | doaj.art-d25d16e18bb342ed8d51716f47f5fd33 |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:17:31Z |
| publishDate | 2020-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-d25d16e18bb342ed8d51716f47f5fd332024-04-15T16:40:32ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392020-01-012761904190910.17559/TV-20191202092507Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial CompressionHongping Liu*0Zhiheng Zhang1Zhang Cheng2Jin Wei3Guoliang Zeng4Civil engineering design academy of Chang'an University Co., LTD, Chang'an University, Middle-section of Nan'er Huan Road Xi'an, ShaanXi Province, 710064, ChinaSchool of highway, Chang'an University, Middle-section of Nan'er Huan Road Xi'an, ShaanXi Province, 710064, ChinaSchool of highway, Chang'an University, Middle-section of Nan'er Huan Road Xi'an, ShaanXi Province, 710064, ChinaSchool of highway, Chang'an University, Middle-section of Nan'er Huan Road Xi'an, ShaanXi Province, 710064, ChinaHunan Lianzhi Technology Co., Ltd,Changsha, Hunan, China, Yanhe Road, Wangcheng Economic and Technological Development Zone, Changsha, Hunan Province,410000,ChinaWidth-thickness ratio was an important parameter for designing Concrete Filled Rectangular Steel Tube (CFRST). Welding longitudinal stiffener on the internal wall of steel pipe could delay the local buckling, which increased the limit of width-thickness ratio. If there was not enough stiffener and its sectional dimension was too small, the local buckling of steel pipe would occur, inducing its bearing capacity seriously. If the stiffener sectional dimension was too large, concrete filled in steel tube would be broken up, which reduces its bearing capacity. To solve that problem, this paper studied local buckling of CFRST with longitudinal stiffener under axial compression and design of longitudinal stiffener. It established buckling analysis model, simplified local buckling analysis as calculating buckling load of thin plate clamped on loading side and unloading side under axial force. It deduced buckling load and buckling coefficient based on the principle of energy. The results showed that buckling mode depended on stiffening rigidity. Therefore, it put forward minimum stiffening rigidity ratio that controlled the stiffener design. This paper also came up with a formula to calculate minimum stiffening rigidity ratio. It provided guidance on designing number, sectional dimension and material performance.https://hrcak.srce.hr/file/361328analytical solutionconcrete-filled steel tubedesignlocal bucklinglongitudinal stiffenerrectangular |
| spellingShingle | Hongping Liu* Zhiheng Zhang Zhang Cheng Jin Wei Guoliang Zeng Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression Tehnički Vjesnik analytical solution concrete-filled steel tube design local buckling longitudinal stiffener rectangular |
| title | Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression |
| title_full | Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression |
| title_fullStr | Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression |
| title_full_unstemmed | Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression |
| title_short | Local Buckling of Concrete Filled Rectangular Steel Tube with Longitudinal Stiffener under Axial Compression |
| title_sort | local buckling of concrete filled rectangular steel tube with longitudinal stiffener under axial compression |
| topic | analytical solution concrete-filled steel tube design local buckling longitudinal stiffener rectangular |
| url | https://hrcak.srce.hr/file/361328 |
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