摘要
针对桁架拱肋假设中出现的线形调整问题,利用影响矩阵法进行处理。通过该方法可得到为满足设计要求线形与标高所需要的扣索长度的调整量和扣索索力增量。通过封铰前的扣索调整,使实际拱轴线逼近设计拱轴线。满足精度要求。
The alignment adjustment problem about erection course of truss arch rib is settled by the influence matrix method.The required adjustment value of cable length and increment of cable tension for ideal alignment can be obtained by this method.Through the cable adjustment sealing hinge,so that the actual design of arch axis of arch axis approximation.Meet the requirements of precision.
出处
《北方交通》
2013年第1期80-81,共2页
Northern Communications
关键词
大跨离钢管混凝土拱桥
线形调整
影响矩阵法
Long-span concrete-filled steel tube arch bridge
Alignment adjustment
Influence matrix method
