太平湖大桥初步设计

太平湖大桥是新建铜陵至汤口高速公路中1座重要桥梁,位于黄山区太平湖柳家梁峡谷风景区,跨越太平湖。推荐方案主桥为中承式钢管混凝土提篮拱桥,跨度达300m;主拱肋由4根1000mm钢管混凝土构件和腹杆、横向缀板组成;主拱圈矢跨比为1 4,拱轴系数为1 33。本文着重介绍该桥推荐方案的总体设计思路,包括自然条件、桥型选择、桥梁总体布置、结构设计、结构计算、施工方法和方案比较等。

Preliminary Design of the Taiping Lake Bridge

The Taiping Lake Bridge is an importan bridge of the expressway from Tonglin to Tangkou,which through the scenic spot of Liujialiang valley,Taiping Lake of Mountain Huangshan,and the bridge is crossing over the Taiping Lake.The recommend plan of the main bridge is a half-through basket handle concrete filled steel tube arch bridge,with a main span over 300m.Four concrete filled steel tubes,horizontal battens and brace struts compose the main arch,the diameter of steel tubes is 1000mm,the rise to span ratio is 1/4,and the arch axis factor is 1.33.The preliminary design of bridge is introduced in this paper,including environment condition,bridge type comparison,structure design and calculation,construction method etc.