A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span space cable net system suspension bridge
The invention discloses a large-span space cable net system suspension bridge, and belongs to the field of civil engineering. The large-span space cable net system suspension bridge mainly comprises arch-shaped bridge towers, main cables, suspension rods, parallel cables, space cable nets, back cables, arch-shaped ring beams, stiffening steel beams, anchorages, bearing platforms, pile foundationsand other structures. A Bessel curve is applied to optimize a traditional portal bridge tower, so that the line shape of the portal bridge tower is smoother, and the anchoring requirement for arranging space cables can be met more easily; the space cable net is arranged in a hyperbolic paraboloid form, so that the space rigidity and the flutter critical wind speed of the cable system are effectively improved; and meanwhile, the excellent mechanical property of the uniparted hyperboloids is applied to improve the appearance of a traditional pile foundation pile body, and the anti-overturning performance is obviously improved under the condition that the anti-bending and anti-shearing bearing capacity of the pile foundation pile body is guaranteed. The large-span space cable net system suspension bridge provided by the invention can greatly improve the wind-resistant stability of the suspension bridge, and can be used as a reference for constructing the large-span space cable net systemsuspension bridge.
本发明公开了一种大跨径空间索网体系悬索桥，属于土木工程领域。该大跨径空间索网体系悬索桥主要包括拱形桥塔、主缆、吊杆、平行索缆、空间索网、背索、拱形环梁、加劲钢梁、锚碇、承台和桩基础等结构。本发明应用贝塞尔曲线对传统的门式桥塔进行优化，使其线形更加流畅，更易满足布置空间索缆的锚固需求；将空间索网布置成双曲抛物面形式，有效的提高了缆索体系的空间刚度与颤振临界风速；同时应用单叶双曲面优良的力学性能来改善传统的桩基础桩身外形，在保证其抗弯抗剪承载力的条件下，明显的提升了抗倾覆性能。本发明提出的一种大跨径空间索网体系悬索桥可极大的改善悬索桥抗风稳定性问题，可为建造大跨径空间索网体系悬索桥作为参考。
Large-span space cable net system suspension bridge
The invention discloses a large-span space cable net system suspension bridge, and belongs to the field of civil engineering. The large-span space cable net system suspension bridge mainly comprises arch-shaped bridge towers, main cables, suspension rods, parallel cables, space cable nets, back cables, arch-shaped ring beams, stiffening steel beams, anchorages, bearing platforms, pile foundationsand other structures. A Bessel curve is applied to optimize a traditional portal bridge tower, so that the line shape of the portal bridge tower is smoother, and the anchoring requirement for arranging space cables can be met more easily; the space cable net is arranged in a hyperbolic paraboloid form, so that the space rigidity and the flutter critical wind speed of the cable system are effectively improved; and meanwhile, the excellent mechanical property of the uniparted hyperboloids is applied to improve the appearance of a traditional pile foundation pile body, and the anti-overturning performance is obviously improved under the condition that the anti-bending and anti-shearing bearing capacity of the pile foundation pile body is guaranteed. The large-span space cable net system suspension bridge provided by the invention can greatly improve the wind-resistant stability of the suspension bridge, and can be used as a reference for constructing the large-span space cable net systemsuspension bridge.
本发明公开了一种大跨径空间索网体系悬索桥，属于土木工程领域。该大跨径空间索网体系悬索桥主要包括拱形桥塔、主缆、吊杆、平行索缆、空间索网、背索、拱形环梁、加劲钢梁、锚碇、承台和桩基础等结构。本发明应用贝塞尔曲线对传统的门式桥塔进行优化，使其线形更加流畅，更易满足布置空间索缆的锚固需求；将空间索网布置成双曲抛物面形式，有效的提高了缆索体系的空间刚度与颤振临界风速；同时应用单叶双曲面优良的力学性能来改善传统的桩基础桩身外形，在保证其抗弯抗剪承载力的条件下，明显的提升了抗倾覆性能。本发明提出的一种大跨径空间索网体系悬索桥可极大的改善悬索桥抗风稳定性问题，可为建造大跨径空间索网体系悬索桥作为参考。
Large-span space cable net system suspension bridge
一种大跨径空间索网体系悬索桥
WANG HAO (author) / JIA HUAIZHE (author)
2020-06-05
Patent
Electronic Resource
Chinese
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