摘要
本文研究了地震荷载下桥梁自振频率在弹塑性阶段的变化规律．理论分析和桥梁模型破坏试验表明：随着塑性变形的加剧，自振频率不断降低．
In the paper the various regular patterns of elastic-plastic frequency of bridges to act on seismic load are studied.The theory analyse and beam bridge models seismic fracture test show that the frequency gradually reduces with the increase of plastic deformation.
出处
《广东工业大学学报》
CAS
1995年第2期85-89,共5页
Journal of Guangdong University of Technology
