摘要
在钢管混凝土拱桥施工中,无支架缆索吊装斜拉扣挂施工方法目前使用最多,扣索索力的确定是其中的一项重要内容。应用"零弯矩法"计算扣索索力会出现负值和不均衡的情况,分别从公式推导和计算实例说明这一点,并指出了"零弯矩法"的适用范围。
The construction method of non-bracket cable-stayed suspension is often used in the long-span CFST arch bridges, of which the calculation of cable force is an important work. The use of 'zero moment method' will lead to the negative number and non-equilibrium of cable force in some conditions. The authors explore the issue through the calculation formulas and examples, and point out application scope of 'zero moment method'.
出处
《长沙交通学院学报》
2004年第1期15-18,共4页
Journal of Changsha Communications University
关键词
钢管混凝土拱桥
斜拉扣挂
扣索索力
“零弯矩法”
适用范围
CFST arch bridge
cable-stay
calculation of cable force
zero moment method
application scope
