A special-shaped arch bridge in space and its construction method

A special-shaped and arch bridge technology, which is applied in arch bridges, bridge construction, bridge maintenance, etc., can solve problems such as high cost, single shape of urban landscape bridges, and difficult construction, so as to save maintenance costs, improve lateral stiffness and overall space stability, The effect of simplifying the construction process

Active Publication Date: 2021-01-08
GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned existing technical defects, the present invention provides a special-shaped arch bridge in space and its construction method, which has the characteristics of light and beautiful structure, large span, wide bridge width, reasonable force, convenient and fast construction, and solves the problem of existing urban landscape bridges. Problems such as single shape, high cost and difficult construction

Method used

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  • A special-shaped arch bridge in space and its construction method
  • A special-shaped arch bridge in space and its construction method
  • A special-shaped arch bridge in space and its construction method

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Embodiment 1

[0038] Such as Figure 1-9 As shown in the present embodiment, a single-span 136m downward space special-shaped arch bridge includes left and right symmetrical support structures, a main girder 1 on the two support structures, and an arch rib structure on the main girder 1. , where the main girder adopts prestressed concrete simply supported box girder with multi-chamber fish-bellied section, the roof of the box girder is 40m wide, the width-span ratio is 1:3.4, the girder height is 3.5m, and the aspect ratio is 1:11.4; The bottom plate of the straight section at the bottom of the beam is 17.432m wide, and the bottom plate of the straight section and the side webs at both ends of the top plate are connected by a circular arc plate. The radius of the arc plate is 20m, and the thickness of the bottom plate of the straight section is 0.22m; The slab is the tie rod arrangement area and the arch rib anchorage area, so the thickness of the middle web is taken as 0.9m, and the thickn...

Embodiment 2

[0047] The construction method of a kind of space special-shaped arch bridge shown in the present embodiment is used for building the space special-shaped arch bridge described in embodiment 1, specifically comprises the following steps:

[0048] a. Build two left-right symmetrical support structures with an interval of 136m. The support structures include bridge piers, bridge caps and piles from top to bottom.

[0049] b. Construct or hoist the main girder on the two supporting structures, the main girder adopts a prestressed concrete simply supported box girder with multi-chamber fish belly type; for rivers and streams with deep water depth and conditions for using large floating cranes, The prefabricated main beam can be fixed on the two supporting structures by means of hoisting; for rivers and streams with shallow water depth and no conditions for using large floating cranes, the method of erecting the cast-in-place concrete main beam on the two supports Structurally cons...

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Abstract

The invention discloses a space special-shaped arch bridge and a construction method thereof. The space special-shaped arch bridge comprises two supporting structures, a main beam arranged on the twosupporting structures and an arch rib structure arranged on the main beam, the arch rib structure comprises a main arch rib and two auxiliary arch ribs arranged on the two sides of the main arch rib correspondingly, arch feet arranged at the two ends of the auxiliary arch ribs and the main arch ribs are arranged on the upper parts of the middles of the two supporting structures correspondingly, the rise span ratio of the main arch rib is 1 / 5.0-1 / 5.5, and the rise span ratio of the auxiliary arch ribs is 1 / 4.0-1 / 4.5; the main arch rib and the two auxiliary arch ribs are connected through inclined struts correspondingly, and cross struts are arranged on the positions, corresponding to all the inclined struts, between the two auxiliary arch ribs; the main arch rib is connected with the main beam through vertical suspenders, and the two auxiliary arch ribs are connected with the outer sides of the corresponding side of the main beam through inclined suspenders. The space special-shaped arch bridge and the construction method thereof have the characteristics that the structure is light and attractive, the span is large, the bridge is wide, stress is reasonable, and construction is convenient and fast, and the problems that in the existing city view, the bridge pose is single, the cost is high, and construction is difficult are solved.

Description

technical field [0001] The invention relates to the technical field of highway and municipal bridge engineering, in particular to a space special-shaped arch bridge suitable for crossing rivers (crossing rivers) and a construction method thereof. Background technique [0002] my country has rich bridge resources and profound bridge culture. In today's era of rapid urban construction, traditional urban spaces are infused with modern connotations, and new urban spaces are constantly being created. As a bridge between urban functions and cultural carriers, people no longer simply require it to be sturdy and durable, but hope that it will become a kind of space art and exist in people's social and cultural life; Due to the particularity of its geographical location, the surrounding area is densely populated and the background outline is uneven. The shape of the bridge should pursue the unity of the characteristics of the times and individual characteristics. [0003] For river-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D4/00E01D22/00E01D21/00
Inventor 宁平华唐明裴欧键灵郭钰瑜陈水盛粟洪王鹏汪荷玲曹志光刘杰李新春麦梓浩凌晨
Owner GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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