摘要
为寻求考虑减振器影响的斜拉桥索力计算方法,本文提出了受减振器影响的斜拉索等效索长这一概念,讨论了减振器与等效索长之间的关系,分别导出了基于RITZ法和弦振动理论的等效索长计算公式及其适用范围,给出了完整实用的等效索长计算方法,从而可求解更为精确的索力值;算例验证了通过等效索长求解索力的正确性和可行性。
In order to improve the method of cable tension calculation with the influence of dampers, this paper presents a concept of equivalent cable length, discusses the relationship between dampers and equivalent cable length, educes the equivalent cable length calculation formulas and their ranges of application based on RITZ method and string vibration theory, at last presenting a complete and practical equivalent cable length calculation plan so that we can calculate the cable tension more precisely. The example in the end of this paper confirms the correctness and feasibility of such a plan.
出处
《上海应用技术学院学报（自然科学版）》
2008年第3期215-219,共5页
Journal of Shanghai Institute of Technology: Natural Science
基金
上海市科学技术委员会基金资助项目(072105115)
关键词
斜拉桥
索力
减振器
等效索长
RITZ法
弦振动
cable-stayed bridge
cable tension
damper
equivalent cable length
RITZ method
stringvibration
作者简介
林立（1983-），男，硕士研究生。
