Tower-anchor combined suspension bridge

A suspension bridge and anchoring technology, which is applied in the direction of suspension bridges, bridges, bridge construction, etc., can solve the problems of large amount of foundation engineering, affecting the economical efficiency of the suspension bridge structure, and the negative impact on the beautiful environment, so as to achieve short construction period, reduce the calculation length, and save back cables long effect

Active Publication Date: 2017-01-04
广西恒正建设工程质量检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in general conventional ground-anchored suspension bridges, it is necessary to build bulky anchors to anchor the main cable, which results in a very large amount of foundation work for the anchorage structure in places with poor geological conditions, which often becomes a difficult point in the project; The anchorag

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] The span arrangement of the tower-anchor integrated suspension bridge in this embodiment is the same as that of the Runyang Yangtze River Bridge. Such as figure 1 As shown, a tower-anchor integrated suspension bridge is mainly composed of a main cable 1, a sling 2, a cable tower 3, a horizontal bar 5, a main girder 6 and an inclined column 7; Between the main beam 6; the horizontal bar 5 intersects vertically with the cable tower 3; the horizontal bar 5 and the inclined column 7 are respectively arranged on both sides of the cable tower 3, and the inclined column 7 is a two-force bar, and the horizontal The pole 5, the cable tower 3 and the slanted column 7 have a common intersection; the bottom of the slanted column 7 is poured with a slanted column foundation 10; the end of the horizontal bar 5 is added with an auxiliary pier II4, and the bottom of the auxiliary pier II4 is poured with an auxiliary pier II Foundation 9; the bottom of the cable tower 3 is poured with ...

Embodiment 2

[0139] The span arrangement of the tower-anchor integrated suspension bridge in this embodiment is the same as that of the Wufengshan Yangtze River Bridge. Such as figure 2 As shown, a tower-anchor integrated suspension bridge is mainly composed of a main cable 1, a sling 2, a cable tower 3, a horizontal bar 5, a main girder 6 and an inclined column 7; between the main beam 6; the horizontal bar 5 intersects the cable tower 3 vertically; the horizontal bar 5 is connected to the cable tower 3 and connected to the main beam 6, and auxiliary piers are respectively added at both ends of the horizontal bar 5 II4. Auxiliary pier I15; the slanting column 7 is a two-force rod, which is located inside the cable tower 3, and the horizontal bar 5, cable tower 3 and slanting column 7 have a common intersection point; the bottom of the auxiliary pier II4 is poured to assist Pier II foundation 9; the bottom of the inclined column 7 intersects with the bottom of the auxiliary pier I 15, an...

Embodiment 3

[0143] The span arrangement of the tower-anchor-integrated suspension bridge in this embodiment is the same as that of the Nanjing Fourth Yangtze River Bridge. Such as image 3 As shown, a tower-anchor integrated suspension bridge is mainly composed of a main cable 1, a sling 2, a cable tower 3, a horizontal bar 5 and a main girder 6; between; the horizontal bar 5 intersects vertically with the cable tower 3; the horizontal bar 5 is connected to the cable tower 3, and is connected with the main beam 6; I15; the bottoms of the auxiliary pier II4 and auxiliary pier I15 are respectively poured with the auxiliary pier II foundation 9 and the auxiliary pier I foundation 17; A steering block II13 is provided at the bottom; a cable saddle 11 is provided on the top of the cable tower 3; a steering block I12 is provided at the end of the horizontal bar 5; The cable saddle 11, the steering block I12 at the end of the horizontal rod 5, and the steering block II13 at the bottom of the c...

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Abstract

The invention discloses a tower-anchor combined suspension bridge. The tower-anchor combined suspension bridge is mainly composed of a main cable, suspension cables, cable towers, horizontal rods and a main beam. The main cable is wound around the tower tops, the horizontal rods and the tower bottoms in sequence and finally anchored between the cable towers on the two sides of the suspension bridge. The cable tower form of the tower-anchor combined suspension bridge is greatly different from that of a traditional suspension bridge, the eccentric lines of the cable towers are curves, and back cables can be prevented from generating bending moment on the towers when rotating around the towers; the width lines of the cable towers are curves, and it can be guaranteed that materials are fully utilized. On the premise of keeping the span of a traditional ground anchor suspension bridge, large-size anchors can be omitted, tower foundations and anchors are combined, the calculated length of the main cable connected with the anchors is reduced, the stress and amplitude of the main cable are reduced under the dead load action, the horizontal tension of the main cable can be balanced by the counter force of the foundations and the axial force of the main beam together, and the foundations are stressed obliquely downwards. The tower-anchor combined suspension bridge is more reasonable in stress, and strength and beauty unification can be achieved more easily under the premise of guaranteeing structure safety, economy and durability.

Description

technical field [0001] The invention belongs to a suspension bridge, in particular to a tower-anchor integrated suspension bridge. Background technique [0002] The suspension bridge structure has the characteristics of good mechanical performance, large spanning capacity, light and beautiful appearance, strong earthquake resistance, various structural forms, and good adaptability to terrain. It is often used as a Preferred bridge type. Therefore, people have also designed various suspension bridge structures. For example, Chinese patent application No. 201510012845.7 discloses a suspension bridge with high torsional rigidity, including a main girder, a cable tower, a main cable and a suspender. Both sides are used to suspend the main girder through the main cable, so that the main cable, suspender and main girder form a structure with a triangular cross-section in space; it uses the stability of the triangle to form a structure similar to a triangular box girder, which fu...

Claims

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Application Information

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IPC IPC(8): E01D11/02E01D19/00E01D19/14E01D19/16
CPCE01D11/02E01D19/00E01D19/14E01D19/16
Inventor 谢肖礼覃霞
Owner 广西恒正建设工程质量检测有限公司
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