摘要
斜拉桥以跨越能力大、结构新颖高效而成为现代桥梁工程中发展最快、最具有竞争力的桥型之一。混合梁斜拉桥主跨采用钢梁以减轻自重、增大跨越能力,边跨采用混凝土梁进行配重、并提高边跨刚度,充分发挥了钢和混凝土两种材料的优势。根据某实际工程,详细地介绍了双塔双索面混合式斜拉桥的受力特点及其分析设计要点。
The cable-stayed bridge is one of the bridge types with the most competition and the most rapidly developed in the modern bridge engineering because of large spanning capacity,new structure and high efficiency.The main span of the composite cable-stayed bridge uses the steel beam to lighten the deadweight and increase the spanning capacity,and the side span uses the concrete beam to balance the weight and to enhance the rigidity of side span,which fully play the superiority of two materials of steel and concrete.Based on an engineering case,the article introduces in detail the stress characteristics of the double-pylon double-plane composite cable-stayed bridge and analyzes its design gist.
出处
《城市道桥与防洪》
2011年第5期73-76,240-241,共4页
Urban Roads Bridges & Flood Control
关键词
混合式斜拉桥
设计分析
成桥索力
MIDAS
CIVIL
composite cable-stayed bridge,design analysis,cable force of the finished bridge,Midas civil
