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A long-span space cable-net system suspension bridge

A suspension bridge, long-span technology, applied in the direction of suspension bridges, bridges, bridge construction, etc., can solve problems such as limited wind resistance stability effect, and achieve the effect of facilitating cable anchorage connection, improving flutter critical wind speed, and good visual effect.

Active Publication Date: 2021-06-11
SOUTHEAST UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

The first two methods have limited effect on improving the wind resistance stability. The new space cable system only needs to add some construction procedures. By changing the cable system, the torsional vibration and lateral horizontal vibration of the suspension bridge are coupled to a certain extent, improving The dynamic stability of the cable system to improve the wind resistance stability of the whole bridge can improve the torsional stiffness and lateral stiffness of the suspension bridge structure, and obtain good wind resistance performance

Method used

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  • A long-span space cable-net system suspension bridge
  • A long-span space cable-net system suspension bridge
  • A long-span space cable-net system suspension bridge

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Embodiment Construction

[0023] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0024] Such as figure 1 , 2 As shown, a suspension bridge with a large-span space cable network system according to the present invention includes an arched bridge tower 1, a main cable 2, a boom 3, parallel cables 4, a space cable network 5, a back cable 6, an arched Ring girder 7, stiffened steel girder 8, anchorage, cap 9, and pile foundation 10; the above-mentioned arched...

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Abstract

The invention discloses a long-span space cable-net system suspension bridge, which belongs to the field of civil engineering. The long-span space cable network system suspension bridge mainly includes arched bridge towers, main cables, suspenders, parallel cables, space cable nets, back cables, arched ring beams, stiffened steel beams, anchors, caps and pile foundations. and other structures. The invention uses Bezier curves to optimize the traditional portal bridge tower, making its line shape more smooth and more likely to meet the anchoring requirements of the space cables; the space cable network is arranged in the form of a hyperbolic paraboloid, which effectively improves the cable system. At the same time, the excellent mechanical properties of the single leaf hyperboloid are used to improve the shape of the traditional pile foundation, and the anti-overturning performance is significantly improved under the condition of ensuring its bending and shearing bearing capacity. The long-span space cable-net system suspension bridge proposed by the present invention can greatly improve the wind resistance stability of the suspension bridge, and can be used as a reference for the construction of the long-span space cable-net system suspension bridge.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a large-span space cable-net system suspension bridge. Background technique [0002] Suspension bridge, also known as suspension bridge, is a bridge structure in which the main cable is tensioned as the main load-bearing member. It has the characteristics of large spanning capacity, reasonable force, and the best use of material strength. It is favored for its advantages of speed and convenience. Modern suspension bridges originated in the United States. The Brooklyn Bridge with a main span of 486m was built in New York in 1883 and is considered to be the starting point of modern suspension bridges. my country's modern suspension bridges started relatively late, but developed rapidly. At present, the Xiamen Haicang Bridge, Jiangyin Yangtze River Bridge, and Runyang Yangtze River Bridge have been built successively, marking that my country's suspension bridges have st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D11/02E01D19/00E01D19/14E01D19/16E02D27/12
CPCE01D11/02E01D19/00E01D19/14E01D19/16E02D27/12
Inventor 王浩贾怀喆
Owner SOUTHEAST UNIV
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