Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs
This study introduces an innovative spiral stiffener to mitigate the local buckling issue of thin-walled steel tubular concrete. In response to diverse restraint forms, 5 distinct specimen types were designed to probe the eccentric compression test. behavior & failure modes of the composite memb...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-02-01
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| Series: | Journal of Asian Architecture and Building Engineering |
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| Online Access: | http://dx.doi.org/10.1080/13467581.2025.2457384 |
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| author | Zhen-Shan Wang Qian-Li Huang Jia-Yi Han Jun Wei Jun-Long Lu |
| author_facet | Zhen-Shan Wang Qian-Li Huang Jia-Yi Han Jun Wei Jun-Long Lu |
| author_sort | Zhen-Shan Wang |
| collection | DOAJ |
| description | This study introduces an innovative spiral stiffener to mitigate the local buckling issue of thin-walled steel tubular concrete. In response to diverse restraint forms, 5 distinct specimen types were designed to probe the eccentric compression test. behavior & failure modes of the composite member. Test results: Spiral ribs limit steel tube buckling between stiffeners, reduce degree. Vs. ord. concrete-filled steel tube, bearing cap. up from 932kN to 1119kN (20% growth), safety margin from 1.48 to 1.84 (24% incr.). An empirical analysis of impact parameters was conducted, revealing that the pitch（$p$） and width-thickness ratio of the spiral rib（${b_{\rm{r}}}/{t_{\rm{r}}}$） had a more pronounced effect on the damage morphology of the specimen. Design recommendations were provided: the diameter-thickness ratio of the steel pipe（${d_{\rm{s}}}/{t_{\rm{s}}}$）was limited to 110–150, the reinforcement rate($\rho $) was between 0.8% and 2%, the pitch was 3.33 times the diameter of the specimen, and the width-thickness ratio of the spiral ribs was between 6 and 10. Through eccentricity(${e_0}/{r_c}$) analysis, the damage limitations of this new component were determined to be approximately 0.5 eccentricity for both large and small eccentricities. Finally, based on superposition theory, a formula for ecc. compressive bearing cap. of new member type is proposed. |
| format | Article |
| id | doaj-art-10e00db187f8497993d943760386417d |
| institution | Kabale University |
| issn | 1347-2852 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Architecture and Building Engineering |
| spelling | doaj-art-10e00db187f8497993d943760386417d2025-02-11T15:10:10ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522025-02-010012410.1080/13467581.2025.24573842457384Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribsZhen-Shan Wang0Qian-Li Huang1Jia-Yi Han2Jun Wei3Jun-Long Lu4Xi’an University of TechnologyXi’an University of TechnologyXi’an University of TechnologySuzhou University of Science and TechnologyXi’an University of TechnologyThis study introduces an innovative spiral stiffener to mitigate the local buckling issue of thin-walled steel tubular concrete. In response to diverse restraint forms, 5 distinct specimen types were designed to probe the eccentric compression test. behavior & failure modes of the composite member. Test results: Spiral ribs limit steel tube buckling between stiffeners, reduce degree. Vs. ord. concrete-filled steel tube, bearing cap. up from 932kN to 1119kN (20% growth), safety margin from 1.48 to 1.84 (24% incr.). An empirical analysis of impact parameters was conducted, revealing that the pitch（$p$） and width-thickness ratio of the spiral rib（${b_{\rm{r}}}/{t_{\rm{r}}}$） had a more pronounced effect on the damage morphology of the specimen. Design recommendations were provided: the diameter-thickness ratio of the steel pipe（${d_{\rm{s}}}/{t_{\rm{s}}}$）was limited to 110–150, the reinforcement rate($\rho $) was between 0.8% and 2%, the pitch was 3.33 times the diameter of the specimen, and the width-thickness ratio of the spiral ribs was between 6 and 10. Through eccentricity(${e_0}/{r_c}$) analysis, the damage limitations of this new component were determined to be approximately 0.5 eccentricity for both large and small eccentricities. Finally, based on superposition theory, a formula for ecc. compressive bearing cap. of new member type is proposed.http://dx.doi.org/10.1080/13467581.2025.2457384thin-walled concrete-filled steel tubespiral ribpressurized by eccentricityparametric analysisultimate carrying capacity |
| spellingShingle | Zhen-Shan Wang Qian-Li Huang Jia-Yi Han Jun Wei Jun-Long Lu Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs Journal of Asian Architecture and Building Engineering thin-walled concrete-filled steel tube spiral rib pressurized by eccentricity parametric analysis ultimate carrying capacity |
| title | Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs |
| title_full | Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs |
| title_fullStr | Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs |
| title_full_unstemmed | Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs |
| title_short | Research on bias stress characteristics and influencing factors of concrete stacked columns with thin-walled steel tubes restrained by spiral ribs |
| title_sort | research on bias stress characteristics and influencing factors of concrete stacked columns with thin walled steel tubes restrained by spiral ribs |
| topic | thin-walled concrete-filled steel tube spiral rib pressurized by eccentricity parametric analysis ultimate carrying capacity |
| url | http://dx.doi.org/10.1080/13467581.2025.2457384 |
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