Temperature Effect on Main Girder of Strengthened Dongming Huanghe River Highway Bridge in Service

It exists a great influence on deformation and internal force of large span bridge when temperature changes, the influence of the temperature must be considered and try to avoid in the process of construction control. Under monitoring to the construction process of Tieluoping super-large bridge on the scene, the influence law on internal force of Tieluoping Bridge is analyzed considering temperature effect, and the influence considering the sunshine temperature difference on cable tower deviation and stress is obtained, and the size of influence of main girder elevation, cable force and strain because of temperature field and distribution rule internal temperature field are clear. It provides powerful help for the smooth construction.

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Construction Technology of Jiu-Jiang Yangtze River Highway Bridge

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.501-504.1274 ◽

2014 ◽

Vol 501-504 ◽

pp. 1274-1278 ◽

Cited By ~ 3

Author(s):

Yong Tao Zhang ◽

Xin Li ◽

Xin Peng You

Keyword(s):

Yangtze River ◽

Control Measures ◽

Highway Bridge ◽

Construction Technology ◽

Box Girder ◽

Cable Stayed Bridge ◽

Long Span ◽

North Side ◽

Steel Box Girder ◽

Main Girder

Jiu-Jiang Yangtze River Highway Bridge, with a main span of 818m, is another long span hybrid girder cable-stayed bridge which connects Jiang Xi province and Hu Bei province in China. Steel box girder is adopted in main span and north side span, and main girder of south side span and south tower nearby is designed of concrete box girder. The pylon is concrete structure, with the height of 242.3m and H-shape. There are 216 cables used in this bridge, of which are assembled by parallel strands. Jiu-Jiang Yangtze River Highway Bridge began to construct in 2009, and was closed in December, 2012. The bridge opened to traffic officially in the next year. Design concept, construction method and vibration control measures about Jiu-Jiang Yangtze River Highway Bridge are introduced in this article.

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Segmental Intelligent Model Test of Box Girder Bridge Strengthened By a Cable-Stayed System by Mathematical Calculation

Journal of Physics Conference Series ◽

10.1088/1742-6596/2083/4/042051 ◽

2021 ◽

Vol 2083 (4) ◽

pp. 042051

Author(s):

Xianggang Wang ◽

Yongli Shen ◽

Yongcheng Yang ◽

Xinxin Zhou ◽

Gangnian Xu ◽

...

Keyword(s):

Model Test ◽

Yellow River ◽

Scale Model ◽

Highway Bridge ◽

Test Results ◽

Box Girder ◽

Concrete Box Girder ◽

Girder Bridge ◽

Main Girder ◽

Intelligent Model

Abstract Dongming Yellow River Highway Bridge is an important super large bridge across the Yellow River on national highway 106. In order to effectively improve the cracking and deflection of the bridge, the cable-stayed system is used to reinforce the main girder of the project. In order to analyze the stress state of joist, bracket and box girder, the static loading of cable is carried out through scale model test to study the mechanical properties of concrete box girder segment, joist and bracket, verify the reliability of bracket and concrete box girder anchorage, and optimize the reinforcement method of cable-stayed system according to the test results.

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