摘要
为研究寒冷区域跨海以及跨河大桥在冰振作用下的机理和响应特点,该文通过冰激桥墩振动室内模型试验模拟直立桥墩结构在3种冰速作用下的振动反应。通过观测到的具体试验现象以及实测到的不同冰速下桥墩应变以及加速度时程响应来分析直立桥墩结构在冰荷载作用下的响应特点;并将实测到的结构响应与有限元计算结果进行比较,进一步验证模型试验所选择的相似律的合理性和精确程度,为以后冰激结构振动室内模型试验的发展提供一定的借鉴。
To research the mechanism and response characteristics of ice-induced pier vibrations in cold areas,a laboratory test is performed for the simulation of ice-induced vibrations of a pier structure with three speeds in this paper. In further,the characteristics of pier responses are analyzed by the observed test phenomenon and measured strain or acceleration time history curves.Then the measured test results are compared with numerical values,so that the rationality and accuracy of the similitude law can be verified.All of the above can provide some important references for the model test develop of ice-induced pier structures.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第9期137-139,156,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50678033)
