Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome
Previous research has confirmed that the newly proposed pentagonal three–four strut hybrid cable dome exhibits superior static performance compared to traditional cable domes, though its dynamic characteristics still require further study. Cable domes are wind-sensitive structures, and the results o...
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/2/461 |
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| author | Hui Lv Dewang Liu Lian Shao Yaopeng Liu Zhongyi Zhu Shilin Dong Yanfen Zhong |
| author_facet | Hui Lv Dewang Liu Lian Shao Yaopeng Liu Zhongyi Zhu Shilin Dong Yanfen Zhong |
| author_sort | Hui Lv |
| collection | DOAJ |
| description | Previous research has confirmed that the newly proposed pentagonal three–four strut hybrid cable dome exhibits superior static performance compared to traditional cable domes, though its dynamic characteristics still require further study. Cable domes are wind-sensitive structures, and the results of a wind-induced vibration analysis are beneficial for the selection and construction of cable domes. In this study, a finite element model of a new open-type cable dome with a span of 120 m is established. The MATLAB 2017a programming language is employed to simulate pulsating winds, followed by a nonlinear dynamic analysis to analyze the wind-induced vibrations of the structure. The reliability of the pulsating wind model is confirmed by comparing the simulated spectrum with the target spectrum. Moreover, a wind-induced vibration time history analysis is performed to obtain the node displacement and internal force of components wind vibration coefficients, aiding in the approximation of pulsating winds with average winds in a wind-resistant design. Furthermore, a parametric analysis is carried out, ranking nodes and components based on sensitivity. The result shows that the structure exhibits the strongest wind resistance when the rise–span ratio is <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="normal">f</mi><mo>/</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0.07</mn></mrow></mrow></semantics></math></inline-formula> and the thickness–span ratio is <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="normal">h</mi><mo>/</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0.08</mn></mrow></mrow></semantics></math></inline-formula>. Notably, the outer upper chord node, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>2</mn><mi mathvariant="normal">a</mi></mrow></mrow></semantics></math></inline-formula>, and the inner lower chord hoop cable, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">H</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></semantics></math></inline-formula>, are identified as the most sensitive node and component within the structure, respectively. Overall, the structure demonstrates excellent wind resistance performance, and the maximum wind vibration coefficient value remains below 3. |
| first_indexed | 2024-03-07T22:39:23Z |
| format | Article |
| id | doaj.art-1b54e1e47a544f599303d33449070149 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-07T22:39:23Z |
| publishDate | 2024-02-01 |
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| record_format | Article |
| series | Buildings |
| spelling | doaj.art-1b54e1e47a544f599303d334490701492024-02-23T15:10:18ZengMDPI AGBuildings2075-53092024-02-0114246110.3390/buildings14020461Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable DomeHui Lv0Dewang Liu1Lian Shao2Yaopeng Liu3Zhongyi Zhu4Shilin Dong5Yanfen Zhong6College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, ChinaCollege of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, ChinaNIDA Technology Company Limited, Hong Kong Science Park, Hong Kong, ChinaBeijing Institute of Architectural Design, Beijing 100045, ChinaSpace Structures Research Center, Zhejiang University, Hangzhou 310058, ChinaCollege of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, ChinaPrevious research has confirmed that the newly proposed pentagonal three–four strut hybrid cable dome exhibits superior static performance compared to traditional cable domes, though its dynamic characteristics still require further study. Cable domes are wind-sensitive structures, and the results of a wind-induced vibration analysis are beneficial for the selection and construction of cable domes. In this study, a finite element model of a new open-type cable dome with a span of 120 m is established. The MATLAB 2017a programming language is employed to simulate pulsating winds, followed by a nonlinear dynamic analysis to analyze the wind-induced vibrations of the structure. The reliability of the pulsating wind model is confirmed by comparing the simulated spectrum with the target spectrum. Moreover, a wind-induced vibration time history analysis is performed to obtain the node displacement and internal force of components wind vibration coefficients, aiding in the approximation of pulsating winds with average winds in a wind-resistant design. Furthermore, a parametric analysis is carried out, ranking nodes and components based on sensitivity. The result shows that the structure exhibits the strongest wind resistance when the rise–span ratio is <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="normal">f</mi><mo>/</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0.07</mn></mrow></mrow></semantics></math></inline-formula> and the thickness–span ratio is <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mi mathvariant="normal">h</mi><mo>/</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0.08</mn></mrow></mrow></semantics></math></inline-formula>. Notably, the outer upper chord node, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>2</mn><mi mathvariant="normal">a</mi></mrow></mrow></semantics></math></inline-formula>, and the inner lower chord hoop cable, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="normal">H</mi></mrow><mrow><mn>1</mn></mrow></msub></mrow></semantics></math></inline-formula>, are identified as the most sensitive node and component within the structure, respectively. Overall, the structure demonstrates excellent wind resistance performance, and the maximum wind vibration coefficient value remains below 3.https://www.mdpi.com/2075-5309/14/2/461pentagonal three–four strut hybrid open-type cable domewind-induced vibrationparametric analysiswind vibration coefficients |
| spellingShingle | Hui Lv Dewang Liu Lian Shao Yaopeng Liu Zhongyi Zhu Shilin Dong Yanfen Zhong Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome Buildings pentagonal three–four strut hybrid open-type cable dome wind-induced vibration parametric analysis wind vibration coefficients |
| title | Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome |
| title_full | Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome |
| title_fullStr | Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome |
| title_full_unstemmed | Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome |
| title_short | Wind-Induced Vibration Analysis of a Pentagonal Three–Four Strut Hybrid Open-Type Cable Dome |
| title_sort | wind induced vibration analysis of a pentagonal three four strut hybrid open type cable dome |
| topic | pentagonal three–four strut hybrid open-type cable dome wind-induced vibration parametric analysis wind vibration coefficients |
| url | https://www.mdpi.com/2075-5309/14/2/461 |
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