A cable-stayed bridge with multifunctional large cantilever box girder

A multi-functional, box-girder technology, applied in the direction of cable-stayed bridges, bridges, bridge forms, etc., can solve the problems of high economic cost and achieve the effects of reasonable investment, stable structure and convenient construction

Active Publication Date: 2016-06-15
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some bridges with special functional requirements, the cross-sectional form of the existing box girder design cannot meet the requirements, or the economic cost is relatively high

Method used

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  • A cable-stayed bridge with multifunctional large cantilever box girder
  • A cable-stayed bridge with multifunctional large cantilever box girder
  • A cable-stayed bridge with multifunctional large cantilever box girder

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: see figure 1 . This embodiment proposes an inclined cable-stayed bridge including a bridge tower 1 , a main span 2 and a side span 3 . The main span 2 is between the two bridge towers 1, and the outer sides of the two bridge towers 1 are respectively two side spans 3

[0022] see Figure 1~4 , The inclined cable-stayed bridge described in this embodiment is provided with two bridge towers 1 in the longitudinal direction, and a single bridge tower structure is adopted in the transverse direction. The two bridge towers 1 are located on both sides of the main span 2 respectively. Only one bridge tower 1 is arranged in the transverse center of one end of the main span 2 . Both lateral sides of the bridge tower 1 are single bridge decks 4 .

[0023] see Figure 4 , in this embodiment, the main span 2 of the cable-stayed bridge is designed with a steel box girder structure, which is in the shape of an inverted trapezoid as a whole. The inverted trapezoida...

Embodiment 2

[0031] Embodiment 2: This embodiment proposes a specific inclined cable-stayed bridge designed using the bridge tower 1 . The structure of the cable-stayed bridge is basically the same as in Embodiment 1.

[0032] The total length of the main bridge of the inclined cable-stayed bridge described in this embodiment is 845.4 meters. Among them, the main span 2 is 575 meters. Such as figure 1 and 4 As shown, this embodiment is an inclined cable-stayed bridge, and the steel box girder structure design adopted in the main span 2 is inverted trapezoidal. The inverted trapezoidal steel box girder is composed of a central rectangular box girder 6 and triangular box girders 7 on both sides of the rectangular box girder 6 . In this embodiment, the transverse width of the rectangular box girder 6 is 11 meters, that is, the transverse width of the central isolated area 5 is 11 meters. The transverse width of the triangular box girder 7 is 19 meters, that is, a single bridge deck 4 is ...

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Abstract

The invention discloses a cable-stayed bridge with multifunctional large cantilever box girders. The cable-stayed bridge comprises bridge towers, stay cables, a main span and side spans, the main span is located between the two bridge towers, the side spans are located on the two sides of the main span, the main span and each side span are each of an inverted trapezoidal box girder structure which is composed of one rectangular box girder located at the center and the corresponding triangular box girders located on the two sides of the rectangular box girder, a center isolation region is located above each rectangular box girder, and a single-width bridge floor is arranged above a top plate of each triangular box girder. The bridge towers are suitable for being located at the center of the cable-stayed bridge with the multifunctional large cantilever box girders to form a stable structure, and the cable-stayed bridge is of a brand new design form.

Description

technical field [0001] The invention relates to the field of cable-stayed bridges, in particular to a cable-stayed bridge provided with a multifunctional large cantilever box girder. Background technique [0002] The box girder is a structural form of a bridge. It is called a box girder because it looks like a box. Steel box girder, also called steel plate box girder, is a box girder structure made of steel. It is also a commonly used structural form of long-span bridges, and is generally used on bridges with large spans. [0003] In long-span cable-supported bridges, the span of the bridge girder made of steel box girders can reach hundreds of meters or even thousands of meters. The common box girder structure is generally divided into several beam sections to be manufactured and installed separately. Its cross-section has the characteristics of wide and flat shape, and the aspect ratio reaches about 1:10. [0004] Specifically, steel box girders are generally connected b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D11/04
CPCE01D11/04
Inventor 罗世东王新国张晓江杨勇张治华周继黎曙文赵剑锋史娣柳鸣陈泽宇明发焱罗春林崔苗苗谢晓慧李的平李桂林董春燕陈名欢陈晓辉严定国张杰
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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