广州猎德大桥索塔日照温度效应分析  

Analysis of Sunshine Temperature Effect on Tower of Liede Bridge in Guangzhou

作　　者：谢尚英[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《桥梁建设》2007年第2期72-75,共4页Bridge Construction

摘　　要：广州猎德大桥是一座自锚式独塔两跨悬索桥,索塔为贝壳状混凝土结构。处于外界环境中的混凝土结构,由于受日照、气温变化等气候因素的影响而引起非线性的温度分布,产生温度应力和温度变形。结合猎德大桥的地理位置、方位、气候条件等因素,以热传导理论对索塔的日照温度分布进行分析,并对温度应力进行计算,为索塔提供相关的设计依据。The Liede Bridge in Guangzhou is a two-span and single tower sell-anchored suspension bridge with the tower designed as a shell-shape concrete structure. Exposed to the external environment and influenced by the climate conditions, such as sunshine and temperature variations, the temperature distribution in concrete structure will become nonlinear, causing temperature stress and temperature deformation. In this paper, in the light of the geographic locations, directions and climate conditions of the Liede Bridge, the thermal conductivity theory is used to analyze the sunshine temperature distribution and to calculate the temperature stress in the tower structure of the Bridge. The analysis and calculation in the paper provides bases for the relevant design of the structure.

关 键 词：悬索桥 桥塔 温度应力 温度变形 

分 类 号：U443.38[建筑科学—桥梁与隧道工程]