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Internal ground anchor suspension bridge

A technology for suspension bridges and slings, applied to suspension bridges, bridges, bridge parts, etc., can solve problems such as large amount of foundation engineering, negative impact on environmental beauty, and impact on the economical efficiency of suspension bridge structures, so as to reduce stress and amplitude, and reduce calculation length , the effect of increasing the lateral stiffness

Active Publication Date: 2016-11-16
GUANGXI UNIV
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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 anchorage and anchorage foundation of the anchor suspension bridge occupy a considerable part of the project cost, and become an important aspect affecting the structural economy of the suspension bridge; in urban areas or tourist areas, the construction of bulky anchorages will also have a negative impact on the aesthetics of the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The span arrangement of the inland anchor suspension bridge of this embodiment is the same as that of the Runyang Yangtze River Bridge. Such as figure 1 As shown, an inland anchor suspension bridge is mainly composed of main cable 1, sling 2, pylon 3, inclined column 4, horizontal bar 5 and main girder 10; Between the beams 10; the cable tower 3 is arranged at both ends of the main beam 10; the inclined column 4 and the horizontal bar 5 are respectively arranged on both sides of the cable tower 3, and there is a common end point, that is, the inclined column The end of 4 is on the same horizontal line as the horizontal bar 5, and the end point is set at the midpoint of the cable tower 3; a steering block I7 is provided at the end of the horizontal bar 5; a cable saddle 6 is provided on the top of the cable tower 3, and the cable tower The bottom of 3 is poured with foundation II11 and a steering block II12 is provided; foundation I9 is ​​poured at the bottom of incline...

Embodiment 2

[0066] The span arrangement of the inland anchor suspension bridge of this embodiment is the same as that of the Wufengshan Yangtze River Bridge. Such as image 3 As shown, an inland anchor suspension bridge is mainly composed of main cable 1, sling 2, pylon 3, inclined column 4, horizontal bar 5 and main girder 10; Between the beams 10; the cable tower 3 is arranged at both ends of the main beam 10; the inclined column 4 and the horizontal bar 5 are respectively arranged on both sides of the cable tower 3, and there is a common end point, that is, the inclined column The end of 4 is on the same horizontal line as the horizontal bar 5, and the end point is set at the midpoint of the cable tower 3; a steering block I7 is provided at the end of the horizontal bar 5; a cable saddle 6 is provided on the top of the cable tower 3, and the cable tower The bottom of 3 is poured with foundation II11 and a steering block II12 is provided; foundation I9 is ​​poured at the bottom of incl...

Embodiment 3

[0070] The span arrangement of the inland anchor suspension bridge of this embodiment is the same as that of the Nanjing Fourth Yangtze River Bridge. Such as figure 1 As shown, an inland anchor suspension bridge is mainly composed of main cable 1, sling 2, pylon 3, inclined column 4, horizontal bar 5 and main girder 10; Between the beams 10; the cable tower 3 is arranged at both ends of the main beam 10; the inclined column 4 and the horizontal bar 5 are respectively arranged on both sides of the cable tower 3, and there is a common end point, that is, the inclined column The end of 4 is on the same horizontal line as the horizontal bar 5, and the end point is set at the midpoint of the cable tower 3; a steering block I7 is provided at the end of the horizontal bar 5; a cable saddle 6 is provided on the top of the cable tower 3, and the cable tower The bottom of 3 is poured with foundation II11 and a steering block II12 is provided; foundation I9 is ​​poured at the bottom of ...

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Abstract

The invention discloses an internal ground anchor suspension bridge which is mainly composed of a main cable, slings, cable bent towers, inclined columns, horizontal rods and a main beam. Each inclined column and the corresponding horizontal rod are arranged on the two sides of the corresponding cable bent tower and share the same end point, in other words, the end portion of each inclined column and the corresponding horizontal rod are located on the same horizontal line, and each end point is arranged at the middle point of the corresponding cable bent tower. A steering block I is arranged at the end portion of each horizontal rod. A cable saddle is arranged on the top of each cable bent tower. A foundation II is poured at the bottom of each cable bent tower, and a steering block II is arranged at the bottom of each cable bent tower. A foundation I is poured at the bottom of each inclined column. The end portions of the main cable are sequentially wound around the cable saddles on the tops of the cable bent towers, the steering blocks I at the end portions of the horizontal rods and the steering blocks II at the bottoms of the cable bent towers and are fixed to the foundations I. According to the internal ground anchor suspension bridge, the anchorage large in size is removed, the calculated length of the main cable connected with the anchorage is reduced, and therefore the stress and amplitude of the main cable under the dead load effect are reduced; and compared with a self-anchorage suspension bridge, the span of the internal ground anchor suspension bridge is far larger than that of the self-anchorage suspension bridge.

Description

technical field [0001] The invention belongs to a suspension bridge, in particular to an inland anchor 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. The two sides are used to suspend the main girder through the main cable, so that the main cable, boom and main girder form a structure with a triangular cross-section in space; the present invention utilizes the stability of the triangle to form a structure similar to a triangular box gird...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D11/02E01D19/00
CPCE01D11/02E01D19/00
Inventor 谢肖礼张一鸣欧阳平王波唐冬云
Owner GUANGXI UNIV