Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of Openings on Fluctuating Wind Pressure Characteristics of Large-Span Cantilevered Roofs
https://orcid.org/http://orcid.org/0000-0002-5329-7392
https://orcid.org/http://orcid.org/0000-0001-8875-7259
https://orcid.org/http://orcid.org/0000-0002-9394-2528
https://orcid.org/http://orcid.org/0000-0003-2543-2486
https://orcid.org/http://orcid.org/0000-0002-3717-0623
Based on the rigid pressure measurement test of the stadium large-span cantilevered roof. The influence of openings on the fluctuating wind pressure characteristics of roof is studied. Firstly, compare the roof of no opening and opening in some aspects, such as fluctuating wind pressure coefficients, skewness and kurtosis, and probability density functions. Secondly, the two types of roofs are divided into non-Gaussian regions based on the cumulative probability curve. Finally, the Hermite moment model is used to calculate the peak factor to consider the non-Gaussian distribution characteristics of the roof. The results show that probability distributions of fluctuating pressures within the vicinity of the windward-side edge, which appear serious deviation and bulge compared with those of standard Gaussian distribution, and which present typical non-Gaussian characteristics. However, the opening can effectively slow down the flow separation phenomenon in the edge opening area, which weakens the non-Gaussian characteristics. The area located in the middle and rear of the roof with smooth airflow still obeys gaussian distribution after opening. At last, the reasonable values of peak factor of the two types of roofs are put forward.
Influence of Openings on Fluctuating Wind Pressure Characteristics of Large-Span Cantilevered Roofs
https://orcid.org/http://orcid.org/0000-0002-5329-7392
https://orcid.org/http://orcid.org/0000-0001-8875-7259
https://orcid.org/http://orcid.org/0000-0002-9394-2528
https://orcid.org/http://orcid.org/0000-0003-2543-2486
https://orcid.org/http://orcid.org/0000-0002-3717-0623
Based on the rigid pressure measurement test of the stadium large-span cantilevered roof. The influence of openings on the fluctuating wind pressure characteristics of roof is studied. Firstly, compare the roof of no opening and opening in some aspects, such as fluctuating wind pressure coefficients, skewness and kurtosis, and probability density functions. Secondly, the two types of roofs are divided into non-Gaussian regions based on the cumulative probability curve. Finally, the Hermite moment model is used to calculate the peak factor to consider the non-Gaussian distribution characteristics of the roof. The results show that probability distributions of fluctuating pressures within the vicinity of the windward-side edge, which appear serious deviation and bulge compared with those of standard Gaussian distribution, and which present typical non-Gaussian characteristics. However, the opening can effectively slow down the flow separation phenomenon in the edge opening area, which weakens the non-Gaussian characteristics. The area located in the middle and rear of the roof with smooth airflow still obeys gaussian distribution after opening. At last, the reasonable values of peak factor of the two types of roofs are put forward.
Influence of Openings on Fluctuating Wind Pressure Characteristics of Large-Span Cantilevered Roofs
https://orcid.org/http://orcid.org/0000-0002-5329-7392
https://orcid.org/http://orcid.org/0000-0001-8875-7259
https://orcid.org/http://orcid.org/0000-0002-9394-2528
https://orcid.org/http://orcid.org/0000-0003-2543-2486
https://orcid.org/http://orcid.org/0000-0002-3717-0623
Based on the rigid pressure measurement test of the stadium large-span cantilevered roof. The influence of openings on the fluctuating wind pressure characteristics of roof is studied. Firstly, compare the roof of no opening and opening in some aspects, such as fluctuating wind pressure coefficients, skewness and kurtosis, and probability density functions. Secondly, the two types of roofs are divided into non-Gaussian regions based on the cumulative probability curve. Finally, the Hermite moment model is used to calculate the peak factor to consider the non-Gaussian distribution characteristics of the roof. The results show that probability distributions of fluctuating pressures within the vicinity of the windward-side edge, which appear serious deviation and bulge compared with those of standard Gaussian distribution, and which present typical non-Gaussian characteristics. However, the opening can effectively slow down the flow separation phenomenon in the edge opening area, which weakens the non-Gaussian characteristics. The area located in the middle and rear of the roof with smooth airflow still obeys gaussian distribution after opening. At last, the reasonable values of peak factor of the two types of roofs are put forward.
Influence of Openings on Fluctuating Wind Pressure Characteristics of Large-Span Cantilevered Roofs
Lecture Notes in Civil Engineering
Guo, Wei (Herausgeber:in) / Qian, Kai (Herausgeber:in) / Zhang, Min (Autor:in) / Fang, Pailin (Autor:in) / Liu, Qizhou (Autor:in) / Lu, Dan (Autor:in) / Pan, Dan (Autor:in)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
08.09.2022
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Large Eddy Simulation of Wind Field around Large-Span Cantilevered Roofs
| British Library Conference Proceedings | 2011
Fluctuating Wind Pressure Characteristics of Dome Roofs with Low Rise-Span Ratio
| DOAJ | 2023
Reducing the wind loading on large cantilevered roofs
| Elsevier | 1988
Characteristics of wind pressures on large cantilevered roofs: effect of roof inclination
| Online Contents | 2002
Equivalent static wind loads for cantilevered grandstand roofs
| Online Contents | 2002