The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member
The calculation method for buckling capacity of cross-laminated timber (CLT) under axial load with one-way members has been investigated and incorporated into design codes worldwide. However, the load may only be applied to a part of the CLT members. In this case, the available calculation method fo...
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MDPI AG
2022-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/1/84 |
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| author | Guofang Wu Liangliang Huo Yinlan Shen Haiqing Ren |
| author_facet | Guofang Wu Liangliang Huo Yinlan Shen Haiqing Ren |
| author_sort | Guofang Wu |
| collection | DOAJ |
| description | The calculation method for buckling capacity of cross-laminated timber (CLT) under axial load with one-way members has been investigated and incorporated into design codes worldwide. However, the load may only be applied to a part of the CLT members. In this case, the available calculation method for buckling capacity is not applicable. To solve this problem, a 3D numerical model was developed to study the buckling behavior of axially loaded CLT members. After being validated by comparison with experimental results, the model was used to investigate the buckling capacity of axially loaded CLT members with different aspect ratios and bearing length ratios. The CLT members all consisted of three layers. The thickness of the CLT members was 105 mm, the width ranged from 300 mm to 2100 mm, and the height ranged from 1400 mm to 3500 mm. It was found that the unloaded part of CLT served as constraints to the loaded part. The longer the unloaded part, the stronger the constraint was. The buckling capacity increased with the increase in bearing length ratios. An equivalent width method (EWM) was proposed; i.e., the partially loaded CLT member was replaced by a fully loaded member with an equivalent width, which can be determined by the proposed formulas. It was found that the proposed calculation method is reliable and simple to apply. This study supplies the missing calculation method for the buckling behavior of partially loaded CLT members and helps to promote the engineering application of CLT members. |
| first_indexed | 2024-03-10T01:48:14Z |
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| id | doaj.art-762b396573b24fff9d2fe0d2cac0bced |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T01:48:14Z |
| publishDate | 2022-01-01 |
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| spelling | doaj.art-762b396573b24fff9d2fe0d2cac0bced2023-11-23T13:12:02ZengMDPI AGBuildings2075-53092022-01-011218410.3390/buildings12010084The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT MemberGuofang Wu0Liangliang Huo1Yinlan Shen2Haiqing Ren3Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100090, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaFaculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, ChinaResearch Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100090, ChinaThe calculation method for buckling capacity of cross-laminated timber (CLT) under axial load with one-way members has been investigated and incorporated into design codes worldwide. However, the load may only be applied to a part of the CLT members. In this case, the available calculation method for buckling capacity is not applicable. To solve this problem, a 3D numerical model was developed to study the buckling behavior of axially loaded CLT members. After being validated by comparison with experimental results, the model was used to investigate the buckling capacity of axially loaded CLT members with different aspect ratios and bearing length ratios. The CLT members all consisted of three layers. The thickness of the CLT members was 105 mm, the width ranged from 300 mm to 2100 mm, and the height ranged from 1400 mm to 3500 mm. It was found that the unloaded part of CLT served as constraints to the loaded part. The longer the unloaded part, the stronger the constraint was. The buckling capacity increased with the increase in bearing length ratios. An equivalent width method (EWM) was proposed; i.e., the partially loaded CLT member was replaced by a fully loaded member with an equivalent width, which can be determined by the proposed formulas. It was found that the proposed calculation method is reliable and simple to apply. This study supplies the missing calculation method for the buckling behavior of partially loaded CLT members and helps to promote the engineering application of CLT members.https://www.mdpi.com/2075-5309/12/1/84buckling capacitycross-laminated timberwoodfinite element methodcalculation method |
| spellingShingle | Guofang Wu Liangliang Huo Yinlan Shen Haiqing Ren The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member Buildings buckling capacity cross-laminated timber wood finite element method calculation method |
| title | The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member |
| title_full | The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member |
| title_fullStr | The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member |
| title_full_unstemmed | The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member |
| title_short | The Effect of the Bearing Width on the Buckling Capacity of Partially Loaded CLT Member |
| title_sort | effect of the bearing width on the buckling capacity of partially loaded clt member |
| topic | buckling capacity cross-laminated timber wood finite element method calculation method |
| url | https://www.mdpi.com/2075-5309/12/1/84 |
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