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Hybrid suspender arch bridge

A technology for suspension rods and arch bridges, applied in bridges, bridge parts, bridge construction, etc., to achieve the effects of improving the overall stiffness, improving in-plane and out-of-plane stability, and improving dynamic characteristics

Pending Publication Date: 2018-11-20
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the prominent problems existing in the existing arch bridges, and to propose a new arch bridge --- hybrid suspension rod arch bridge

Method used

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Examples

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Embodiment

[0092] The span arrangement (550m of the main span) of the mixed hanger arch bridge of this embodiment is all the same as that of the Lupu Bridge (total investment of 2.5 billion). Specifically: a hybrid suspender arch bridge, mainly composed of an arch rib 1, a main beam 2, a flexible suspender 4 and an arch rib cross brace 5; the flexible suspender 4 is arranged between the arch rib 1 and the main beam 2 ; wherein: several rigid oblique rods 3 are arranged between the arch rib 1 and the main beam 2, and the ends of the adjacent rigid oblique rods are connected successively, that is: counting from left to right, the first rigid oblique rod The top of the oblique rod is connected to the arch rib 1, the bottom of the first rigid oblique rod is fixedly connected to the bottom of the second rigid oblique rod and then connected to the main beam 2, and the top of the second rigid oblique rod is connected to the third rigid oblique rod The top of the rigid oblique rod is fixedly con...

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Abstract

The invention discloses a hybrid suspender arch bridge. The hybrid suspender arch bridge mainly consists of an arch rib, a main beam, a flexible suspender and an arch rib transverse brace. The flexible suspender is arranged between the arch rib and the main beam, wherein a plurality of rigid inclined rods are arranged between the arch rib and the main beam. And the ends of the adjacent rigid inclined rods are successively connected to form a plurality of triangular structures which are symmetrically arranged with the connection line of the central points of the arch rib and the main beam as the axis of symmetry. The tops of the rigid inclined rods divide the arch rib evenly, and the linear stiffness of the arch rib is improved by uniform restraint of the angular points of the triangle structures to the arch ribs. The bottoms of the rigid inclined rods are located at a maximum displacement and a midspan position of the original structure girder displacement envelope diagram, so that theweakness of the main beam is strengthened and the linear stiffness is also improved. Compared with a traditional arch bridge , the strength bearing capacity, dynamic characteristics and stability ofthe hybrid suspender arch bridge are also greatly improved, and the hybrid suspender arch bridge can also eliminate the 'seesaw' effect of the arch bridge when subjected to half-span load, and is especially suitable for high-speed railway bridges.

Description

technical field [0001] The invention belongs to an arch bridge system, and in particular relates to a hybrid suspension rod arch bridge. Background technique [0002] The arch is the earliest and greatest invention of human beings in the field of structure. From early bricks to iron, steel and concrete in the 18th century, when they were first applied to bridge structures, they were first used in arch bridges. The application of arch bridges in our country has a long history and has achieved brilliant achievements. Zhaozhou Stone Arch Bridge, built around 605 A.D., has a span of 37.4m and adopts a hollow-type arc arch, which shines in the history of bridge technology development in the world. After liberation, my country's arch bridge technology continued to innovate and improve, and continued to maintain the world's advanced level. Nowadays, arch bridges are not only widely used on highways, but also the most commonly used bridge type in high-speed railway bridges. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D12/00E01D19/00
CPCE01D12/00E01D19/00
Inventor 谢肖礼喻泽成邓俨峰黄扬
Owner GUANGXI UNIV
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