大连普兰店湾五跨提篮拱桥设计

大连市普湾新区16号路跨海大桥为主跨200m的五跨提篮拱桥,其跨径布置为（50＋ 170 ＋200＋ 170＋50）m,主拱肋采用钢箱截面,拱肋轴线总体内倾9°.主梁为钢—混凝土组合梁结构,由边纵梁、横梁、小纵梁组成的纵横体系,其上设混凝土桥面板,下部采用群桩基础.介绍了该桥的设计特点并计算了多种工况下的结构受力状态,希望对此类桥梁的设计与施工起到一些借鉴作用.

Design of Five-across Basket Handle Arch Bridge in Pulandian Bay,Dalian

The cross - sea bridge, located at No. 16 Road, Pulandian Bay New Area, Dalian, is a five - across basket handle arch bridge with 200m main bridge. The layout of its span is 50 ＋ 170 ＋ 200 ＋ 170 ＋ 50. Steel box section is adopted in the main arch rib and the axis of arch rib generally leans inside for 90. The girder is made of steel - concrete composite beam and it is a system composed of side girders, beams and small beams. Concrete bridge deck slab is set as the upper part and pile group foundation is used as the lower part. The design feature of the bridge is introduced and structure stress states under various working conditions are calculated, which is wish to have some reference function for the bridge design and construction.