摘要
斜拉桥的主塔是桥梁的主要受力构件之一,桥梁上部结构的恒载和活载绝大部分都是通过主塔传到基础上。由于折线塔斜拉桥的索力还需要来平衡倾斜折线形主塔的重量。因此,各对称位置的索力是不平衡的,且差异较大。鉴于折线形索塔锚固区受力状态的复杂性,对其主塔锚固区进行理论上的空间分析和模型试验,从而得出折线塔拉索锚固区的受力特点及理论分析方法。
The main pylon of cable-stayed bridge is one of main stressed components of bridge.The constant load and live load of bridge superstructure are transferred to the foundation mostly through the main pylon.Owing to the cable force of dogleg pylon cable-stayed bridge required to balance the weight of the main dogleg pylon,the cable force of each symmetrical position is not balanced,and is gready different.In view of the stress status complexity of dogleg cable pylon anchorage zone,the space analysis and model test are theoretically carried out for the anchorage zone of its main pylon so as to give the stress characteristic and theoretical analysis method for the cable anchorage zone of dogleg pylon.
出处
《城市道桥与防洪》
2014年第4期83-86,4-5,共4页
Urban Roads Bridges & Flood Control
关键词
斜拉桥
折线塔
锚固区
cable-stayed bridge
dogleg pylon
anchorage zone
