龙湾大桥混凝土双边箱主梁设计计算

On Design & Calculation of Concrete Bilateral Box Main Beam of Longwan Bridge

以广东省龙湾大桥为工程背景,主要介绍了大跨度斜拉桥双边箱主梁的设计。同时,针对超宽预应力混凝土双边箱主梁斜拉桥的受力特点,应用平面有限元软件及ANSYS程序对其受力进行分析,指出设计时要加强拉索锚固区锚固齿块的构造和配筋等。

With the background of Guangdong Longwan Bridge,the design of bilateral box main beam of large span cable-stayed bridge is mainly introduced in this paper.Meanwhile,aiming at the stress features of extra-wide prestressed concrete bilateral box cable-stayed bridge,plane finite elements software and ANSYS Program are used to analyze stress situation.It is pointed out that structure and reinforcement of anchoring tooth block of cable anchorage zone should be strengthened during the design.