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Flexible supporting structure for bridge special for suspension type air express

A flexible support and suspension technology, used in bridges, suspension bridges, bridge parts, etc., can solve the problems of suspension-type air express obstacles, vehicle running is not stable enough, and the stiffness of suspension bridges is small, so as to reduce the degree of undulation of the vehicle body, reduce the The effect of small vibration and gentle deflection of the main beam

Pending Publication Date: 2018-06-19
DALIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the stiffness of the suspension bridge is small, and the displacement of the main girder is relatively large when the vehicle passes by. There is a large vibration, which makes the driving of the vehicle not stable enough
At present, the method to improve the vertical stiffness of the main girder is to use a multiple lever mechanism, which has a complex structure and high cost, which has created a major obstacle to the domestic promotion of the suspended sky express

Method used

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  • Flexible supporting structure for bridge special for suspension type air express

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Embodiment Construction

[0010] The specific embodiments of the present invention will be described in detail below with reference to the technical solutions and the accompanying drawings.

[0011] The span of the suspension bridge is arranged as 70m+200m+70m, the main beam 2 is a steel structure, and the cross-sectional area is 0.13m 2 , the cross-sectional area of ​​the two main cables is 0.1m 2 , the cross-sectional area of ​​the sling is 0.005m 2 , The spacing is 5m, remove the six sets of vertical conventional hangers 4 near the bridge tower, and replace them with six sets of inclined hangers, and the inclined hangers are arranged in a mesh form with an angle of 55 to 65°. Under the same load, the vertical deflection of the main beam 2 is significantly improved, the vibration is reduced, and the ride comfort is improved.

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Abstract

The invention provides a flexible supporting structure for a bridge special for a suspension type air express, and belongs to the technical field of bridge structure design. A floating system is usedfor a main beam of the suspension bridge, a cable bent tower is not provided with a supporting seat, vertical hangers near the cable bent tower are removed to be replaced with six groups of inclined hangers, the inclined hangers are distributed in a network-shaped structure, and the angle of the inclined hangers is 55-65 degrees. According to the flexible supporting structure for the bridge special for the suspension type air express, the vertical deflection linear shape of a main beam under the action of the air express can be obviously improved, the main beam becomes gentle, vibration is reduced, and the ride comfort is significantly improved.

Description

technical field [0001] The invention belongs to the technical field of bridge structure design, relates to the structural optimization of a suspension bridge, and particularly relates to a flexible support structure of a bridge dedicated to a suspension type air express. Background technique [0002] Suspended air express is a new type of transportation, often used in tourist scenic spots. The vehicle is suspended under the special lane, and the vehicle load is small. Therefore, the special bridges carrying the suspended air express are mostly in the form of suspension bridges to increase the size of the vehicle. The spanning capacity of the bridge. However, the stiffness of the suspension bridge is small, and the displacement of the main beam is large when the vehicle passes by. However, when the vehicle travels near the tower, because the main beam is supported on the support at the tower, which is equivalent to a rigid support, the vehicle will There is a large vibration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D11/02E01D19/16E01D19/14
CPCE01D11/02E01D19/14E01D19/16
Inventor 檀永刚白志娟黄才良张哲王会利潘盛山王骞
Owner DALIAN UNIV OF TECH
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