Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod
In this paper, the torsional moment of the right-angle fastener bolt is taken as the main research parameter, and the torsional stiffness performance of the right-angle fastener under different working conditions is studied experimentally. By establishing the moment–rotation relationship model of th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/8/4838 |
| _version_ | 1797606543687942144 |
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| author | Meng Ji Fankui Zeng Yiping Dong Yuchuan Fan |
| author_facet | Meng Ji Fankui Zeng Yiping Dong Yuchuan Fan |
| author_sort | Meng Ji |
| collection | DOAJ |
| description | In this paper, the torsional moment of the right-angle fastener bolt is taken as the main research parameter, and the torsional stiffness performance of the right-angle fastener under different working conditions is studied experimentally. By establishing the moment–rotation relationship model of the node, the mechanical performance and rotation characteristics of the semirigid connection of the node are studied. According to the joint stiffness value determined by the experimental study and the theory of semirigid connection frame with lateral displacement, the calculation formulas of the stiffness correction coefficient <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>α</mi><mi>u</mi></msub></mrow></semantics></math></inline-formula> of the transverse bar and the constraint coefficient K at the end of the vertical bar are derived, and the effective length coefficient <i>μ</i> of the vertical bar and the theoretical value of the stable bearing capacity of the vertical bar under different working conditions are given. Compared with the current standard values, it is found that the theoretical calculation results of the percentage increase of the stable bearing capacity of the vertical bar are 3 to 4 times larger than the standard calculation results when the step distance is reduced. The theoretical calculation method can better consider the semirigid characteristics of the joint and the influence of adjacent members on the stable bearing capacity of the vertical bar. |
| first_indexed | 2024-03-11T05:16:41Z |
| format | Article |
| id | doaj.art-259cdc15ad1f4c4ba890455e6f9507db |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:16:41Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-259cdc15ad1f4c4ba890455e6f9507db2023-11-17T18:09:58ZengMDPI AGApplied Sciences2076-34172023-04-01138483810.3390/app13084838Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright RodMeng Ji0Fankui Zeng1Yiping Dong2Yuchuan Fan3School of Civil & Architecture Engineering, Xi’an Technological University, Xi’an 710021, ChinaSchool of Civil & Architecture Engineering, Xi’an Technological University, Xi’an 710021, ChinaSchool of Civil & Architecture Engineering, Xi’an Technological University, Xi’an 710021, ChinaSchool of Civil & Architecture Engineering, Xi’an Technological University, Xi’an 710021, ChinaIn this paper, the torsional moment of the right-angle fastener bolt is taken as the main research parameter, and the torsional stiffness performance of the right-angle fastener under different working conditions is studied experimentally. By establishing the moment–rotation relationship model of the node, the mechanical performance and rotation characteristics of the semirigid connection of the node are studied. According to the joint stiffness value determined by the experimental study and the theory of semirigid connection frame with lateral displacement, the calculation formulas of the stiffness correction coefficient <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>α</mi><mi>u</mi></msub></mrow></semantics></math></inline-formula> of the transverse bar and the constraint coefficient K at the end of the vertical bar are derived, and the effective length coefficient <i>μ</i> of the vertical bar and the theoretical value of the stable bearing capacity of the vertical bar under different working conditions are given. Compared with the current standard values, it is found that the theoretical calculation results of the percentage increase of the stable bearing capacity of the vertical bar are 3 to 4 times larger than the standard calculation results when the step distance is reduced. The theoretical calculation method can better consider the semirigid characteristics of the joint and the influence of adjacent members on the stable bearing capacity of the vertical bar.https://www.mdpi.com/2076-3417/13/8/4838fastener-type steel pipe formwork bracketstable bearing capacitynode semirigidityframe of sideway |
| spellingShingle | Meng Ji Fankui Zeng Yiping Dong Yuchuan Fan Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod Applied Sciences fastener-type steel pipe formwork bracket stable bearing capacity node semirigidity frame of sideway |
| title | Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod |
| title_full | Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod |
| title_fullStr | Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod |
| title_full_unstemmed | Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod |
| title_short | Calculation Method of Stable Bearing Capacity of Fastener-Type Steel Pipe Formwork Support Upright Rod |
| title_sort | calculation method of stable bearing capacity of fastener type steel pipe formwork support upright rod |
| topic | fastener-type steel pipe formwork bracket stable bearing capacity node semirigidity frame of sideway |
| url | https://www.mdpi.com/2076-3417/13/8/4838 |
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