|
|
|
| Study on The Pedestrian Landscape Suspension Bridge with Hyperbolic Paraboloid Spatial Cable Network |
| LI Mu-hang1, XU Wen-ping1, JIANG Tao2, HU Tian-shi1, CHEN Ruo-fei1 |
1. School of Civil Engineering, Southeast University, Nanjing Jiangsu, 211189, China;
2. Jiangsu Southeast Special Technical Engineering Co., Ltd, Nanjing Jiangsu, 210008, China |
|
|
|
|
Abstract In order to improve the lateral stiffness of the flat pull pedestrian suspension bridge, using the straight-grained characteristics of the hyperbolic paraboloid, a flat pull pedestrian suspension bridge structural system of the hyperbolic paraboloid spatial cable network is proposed in this paper. The hyperbolic paraboloid spatial cable network is suspended on the parabola concave bent cap of the double leg column bridge tower, The bridge deck structure in the form of pipe truss structure is placed in the groove of hyperbolic paraboloid spatial cable network system. The spatial-crossing cable network with hyperbolic paraboloid provides horizontal component force and improves the lateral stiffness and torsional stiffness. Combined with a 120 m span pedestrian landscape suspension bridge in a canyon River, the engineering parameters are designed, the Midas finite element analysis model is established, the internal force is analyzed and calculated, and the dynamic modal analysis is carried out to verify the superiority of the flat pull pedestrian suspension bridge structure of hyperbolic paraboloid spatial cable network.
|
|
Received: 30 December 2021
|
|
|
|
[1] XIE Chun-sheng, BIAN Hong-po, LI Song, et al. Summary of Structural Characteristics and Design of Flat Pull Suspension Bridge[J]. Journal of China & Foreign Highway, 2016, 36(2):98-101. (in Chinese)
[2] SILANG Yong-zong, ZHAXI Luo-bu. Discussion on Flat Pull Pedestrian Suspension Bridge with Tubular Reticulated Space Cable System in Tube-net-shape[J]. Special Structure, 2021, 38(1):65-69. (in Chinese)
[3] ASTIZ M A. Flutter Stability of Very Long Suspension Bridges[J]. Journal of Bridge Engineering, 1998, 3(3):132-139.
[4] XIA Xiao-dong. Study on Lateral Vibration of Flexible Pedestrian Bridge[D]. Beijing:Beijing Jiaotong University, 2007. (in Chinese)
[5] TANG M-C. Super-long Span Bridges[J]. Structure and Infrastructure Engineering:Maintenance, Management, Life Cycle Design & Performance, 2017, 13(6):722-730.
[6] ZHANG Xin-jun. Study of the Wind Stability of Long-span Suspension Bridges with Spatial Cable Systems[J]. China Civil Engineering Journal, 2011, 44(6):80-86. (in Chinese)
[7] MA Long-bao. Human-Induced Lateral Vibration & Comfort Analysis of Some Steel Structure Pedestrian Bridge[J]. China Municipal Engineering, 2017(5):8-11, 95-96. (in Chinese)
[8] YANG Zhi-qun. Estimation of Critical Pedestrian Number for a Long Span Irregular Pedestrian Suspension Glass Bridge[J]. Highway engineering, 2017, 42(3):269-273. (in Chinese) |
|
|
|
2022, Vol. 16 
