华中科技大学学报（自然科学版）Issue(3)：92-95,101,5.DOI:10.13245/j.hust.140320
考虑垂度及抗弯刚度影响的斜拉桥索力测试
Tension force estimation for cable-stayed bridge under both sag and bending stiffness effects
摘要
Abstract
Based on the vibration differential equation of axially loaded beam ,the nonlinear vibration differential equation of cables considering the effects of both sag and bending stiffness was estab-lished .The multiple-scale method was introduced to solve such difficulty and a simplified nonlinear function was established .Based on the function ,the effects of initial condition ,tension force ,stiff-ness and the geometric characteristics of the cable on fundamental frequency were discussed .A practi-cal formula was proposed and its application range was discussed .The applicability of the proposed practical formula was verified by comparision of the results with those mentioned in the literature and the FEM calculation .关键词
索力测试/垂度/抗弯刚度/非线性振动/多尺度法Key words
tension force estimation/cable sag/bending stiffness/nonlinear vibration/multiple-scale method分类
交通工程引用本文复制引用
吴霄,肖汝诚..考虑垂度及抗弯刚度影响的斜拉桥索力测试[J].华中科技大学学报（自然科学版）,2014,(3):92-95,101,5.基金项目
国家重点基础研究发展计划资助项目（2013CB036300）；江西省交通厅重大科研项目（2012C0002）． （）
