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Suspension Bridge and Construction Method of Saddle Parabolic Space Hybrid Cable System

A space mixing and parabolic technology, applied in the direction of suspension bridges, bridges, bridge materials, etc., can solve the problems of small space stiffness, poor spanning ability, poor wind resistance stability, etc., and achieve the effect of improving space stiffness, reducing displacement, and strengthening integrity

Active Publication Date: 2019-06-18
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Purpose of the invention: The purpose of the invention is to provide a suspension bridge with a saddle parabolic space mixed cable system and its construction method, so as to solve the technical problems of the existing suspension bridge structure with small space rigidity, poor spanning ability and poor wind resistance stability

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  • Suspension Bridge and Construction Method of Saddle Parabolic Space Hybrid Cable System
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  • Suspension Bridge and Construction Method of Saddle Parabolic Space Hybrid Cable System

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] Such as Figure 1-6 As shown, a suspension bridge of a saddle parabolic space hybrid cable system includes: a bridge tower 4, which includes a portal frame column 41, a parabolic tower cap 42, and a tower cap supporting inclined column 43; parallel steel wire cables 1, which are suspended on the bridge Between the towers 4, the ends of the parallel wire cables 1 are fixed by the anchorage 9; the saddle parabolic cable net 2 is a space cable net formed by the saddle parabolic space net drooping, the saddle parabolic cable net 2 is covered on the parallel steel wire cables 1, and the saddle parabolic cable net 2 is There are multiple steel structure curved beams 5 placed on the parabolic cable net 2, and the parallel steel wire cables 1, the saddle parabolic cable net 2 and the steel structural curved beam 5 are fixed by clamps, and the saddle parabolic cable net 2 is ...

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Abstract

The invention provides a suspension bridge with a packsaddle paraboloid space mixing cable system. The suspension bridge comprises bridge towers, parallel wire ropes, packsaddle paraboloid cable nets and space stay cable nets, wherein each bridge tower comprises a portal type frame column, a parabola-shaped tower cap and tower cap supporting oblique cylinders; the parallel wire ropes are hung between the bridge towers; the end parts of the parallel wire ropes are fixed through an anchorage; each packsaddle paraboloid cable net is a space cable net formed by the sinking of a packsaddle paraboloid space net, and is coated on the parallel wire ropes; a plurality of steel structure curved beams are also arranged on the packsaddle paraboloid cable nets I, and the parallel wire ropes, the packsaddle paraboloid cable networks and the steel structure curved beams are fixed through a corresponding fixture; the space stay cable nets are respectively arranged on two sides of the parallel wire ropes; and the upper end of each space stay cable net is anchored in the corresponding tower cap supporting oblique cylinders, and the lower end of each space stay cable net is connected with the corresponding reinforced steel girder. The suspension bridge disclosed by the invention has the advantages of being high in spanning capacity, high in structural space rigidity, good in wind resisting stability, convenient to construct and the like, so that the problem of the wind resisting stability of an extra-large span suspension bridge is fundamentally solved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a suspension bridge with a saddle parabolic space hybrid cable system and a construction method thereof. Background technique [0002] For traditional suspension bridges with parallel cable systems, as the span increases, the vertical deflection frequency and torsional vibration frequency both decrease and gradually tend to approach each other, resulting in flutter at low wind speeds. Therefore, how to improve the spanning capacity of the suspension bridge and at the same time ensure that the super-long-span suspension bridge has sufficient lateral stiffness and wind resistance stability are two major problems faced by the super-long-span suspension bridge. [0003] There are three ways to improve the wind resistance of long-span suspension bridges: improving the aerodynamic performance of the section, controlling the vibration characteristics of the structure, and changing the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D11/02E01D19/16E01D21/00E01D101/32
CPCE01D11/02E01D19/16E01D21/00E01D2101/32
Inventor 徐文平袁吉汗郭进邓欣强玮良戴航夏叶飞
Owner SOUTHEAST UNIV
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