摘要
钢锚箱组合索塔锚固结构是最近用于大跨度斜拉桥索塔锚固区的一种新型结构,在斜拉索斜向索力作用下组合索塔不仅承受竖向荷载,同时在水平面内还承受水平力,该水平力往往是控制索塔受力的关键因素。该文在研究钢锚箱组合索塔结构及其传力机理的基础上,提出了分析组合索塔水平受力的简化计算模型,通过与已有的试验结果对比,验证了该文提出的简化分析模型的合理性和准确性。
A composite cable-pylon with a steel-anchor-box as a new developed structure was adopted in long-span cable-stayed bridges recently.Bearing the inclined cable force,the composite pylon burdened not only vertical forces but horizontal forces in a horizontal plane which usually is the key mechanical issue controlling the structural design.Studying the configuration and mechanical behavior of a composite cable-pylon with a steel-anchor-box,a simplified analytical model for the horizontal mechanical behavior of a composite pylon is proposed.Comparing to finished experimental results,the rationality and accuracy of this simplified analytical model are verified.
出处
《工程力学》
EI
CSCD
北大核心
2011年第A01期172-177,共6页
Engineering Mechanics
基金
国家自然科学基金项目(50708075)
关键词
斜拉桥
索塔
钢锚箱
组合结构
简化分析模型
cable-stayed bridge
cable-pylon
steel-anchor-box
composite structure
simplified analysis model
