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A platform for research: civil engineering, architecture and urbanism
Study on the Effects of Pedestrians on the Aerostatic Response of a Long-Span Pedestrian Suspension Bridge
https://orcid.org/https://orcid.org/0000-0002-3728-4129
According to a long-span pedestrian suspension bridge, the sectional models of the human-footbridge system were proposed, and then the force measurement tests were performed to study the effects of the pedestrian density (ρ), pedestrian permutation, and wind attack angle (α) on the drag force coefficient (CH), lift force coefficient (CV), and pitching moment coefficient (CM), respectively. So, it is found that: (1) with the increase of ρ, both CH and CV with α < −2° increase, while both CV with α ≥ −2° and CM with ρ ≠ 0.0 P/m2 decrease. (2) when ρ > 0.2 P/m2, there is a significant effect of the pedestrian permutations on CH and CM, while the effect of the pedestrian permutations on CV is small. Then, the static wind forces were calculated and applied to the pedestrian suspension bridge, and the effects of ρ and pedestrian permutations on the aerostatic response were studied. So, it is found that: 1) with the increase of ρ, the aerostatic response increases; 2) the effects of the pedestrian permutations with ρ ≤ 0.5 P/m2 on the aerostatic response can be ignored, while there are disadvantageous effects of the pedestrian permutations with ρ > 0.5 P/m2 and larger wind-blocking area on the aerostatic response.
Study on the Effects of Pedestrians on the Aerostatic Response of a Long-Span Pedestrian Suspension Bridge
https://orcid.org/https://orcid.org/0000-0002-3728-4129
According to a long-span pedestrian suspension bridge, the sectional models of the human-footbridge system were proposed, and then the force measurement tests were performed to study the effects of the pedestrian density (ρ), pedestrian permutation, and wind attack angle (α) on the drag force coefficient (CH), lift force coefficient (CV), and pitching moment coefficient (CM), respectively. So, it is found that: (1) with the increase of ρ, both CH and CV with α < −2° increase, while both CV with α ≥ −2° and CM with ρ ≠ 0.0 P/m2 decrease. (2) when ρ > 0.2 P/m2, there is a significant effect of the pedestrian permutations on CH and CM, while the effect of the pedestrian permutations on CV is small. Then, the static wind forces were calculated and applied to the pedestrian suspension bridge, and the effects of ρ and pedestrian permutations on the aerostatic response were studied. So, it is found that: 1) with the increase of ρ, the aerostatic response increases; 2) the effects of the pedestrian permutations with ρ ≤ 0.5 P/m2 on the aerostatic response can be ignored, while there are disadvantageous effects of the pedestrian permutations with ρ > 0.5 P/m2 and larger wind-blocking area on the aerostatic response.
Study on the Effects of Pedestrians on the Aerostatic Response of a Long-Span Pedestrian Suspension Bridge
https://orcid.org/https://orcid.org/0000-0002-3728-4129
According to a long-span pedestrian suspension bridge, the sectional models of the human-footbridge system were proposed, and then the force measurement tests were performed to study the effects of the pedestrian density (ρ), pedestrian permutation, and wind attack angle (α) on the drag force coefficient (CH), lift force coefficient (CV), and pitching moment coefficient (CM), respectively. So, it is found that: (1) with the increase of ρ, both CH and CV with α < −2° increase, while both CV with α ≥ −2° and CM with ρ ≠ 0.0 P/m2 decrease. (2) when ρ > 0.2 P/m2, there is a significant effect of the pedestrian permutations on CH and CM, while the effect of the pedestrian permutations on CV is small. Then, the static wind forces were calculated and applied to the pedestrian suspension bridge, and the effects of ρ and pedestrian permutations on the aerostatic response were studied. So, it is found that: 1) with the increase of ρ, the aerostatic response increases; 2) the effects of the pedestrian permutations with ρ ≤ 0.5 P/m2 on the aerostatic response can be ignored, while there are disadvantageous effects of the pedestrian permutations with ρ > 0.5 P/m2 and larger wind-blocking area on the aerostatic response.
Study on the Effects of Pedestrians on the Aerostatic Response of a Long-Span Pedestrian Suspension Bridge
KSCE J Civ Eng
Li, Yu (author) / Chen, Zhe (author) / Dong, Shi-Jie (author) / Li, Jia-Wu (author)
KSCE Journal of Civil Engineering ; 25 ; 3866-3878
2021-10-01
13 pages
Article (Journal)
Electronic Resource
English
Long-span pedestrian suspension bridge , Sectional model of the human-footbridge system , Aerostatic force coefficient , Aerostatic response , Pedestrian density , Pedestrian permutation Engineering , Civil Engineering , Industrial Pollution Prevention , Geotechnical Engineering & Applied Earth Sciences
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