摘要
在超大跨径桥梁中 ,静风荷载不仅会引起结构的动力特性改变 ,还将导致结构强度破坏和失稳。本文以超大跨径桥梁为研究对象 ,计入几何、材料以及静风荷载的非线性的三重影响 ,对它们在静风荷载作用下的关键问题进行了研究 ,揭示了结构的静风荷载响应与三分力系数曲线关系 ,给出了研究方法和一系列研究成果。
Aerostatic load will not only cause alteration of dynamic character of super-long-span bridge structures, but also will lead the structure to collapse or buckling. Taking the multiple influence of the geometrical nonlinear and the material nonlinear and the nonlinear caused by aerostatic load into consideration, the key points of the structure under aerostatic load are researched in this paper. The relationship between the response of aerostatic load and three components of static aerostatic coefficients are also discussed. A series of research methods and results are presented.
出处
《公路交通科技》
EI
CAS
CSCD
北大核心
2001年第6期34-38,54,共6页
Journal of Highway and Transportation Research and Development
基金
高等学校骨干教师计划资助项目
国家自然科学基金资助项目 (5989541 0 )
关键词
超大跨径桥梁
静风荷载
非线性
Super-long-span bridge
Aerostatic load
Nonlinear
