摘要
板式橡胶支座由多层均匀分布的橡胶与钢板粘结而成。本文利用网格法光学测量技术获得橡胶钢板层合界面的应变场,以宏观剪切负荷-变形同步的形式研究了橡胶与钢板粘结界面间的应变场。观测到应变集中现象,且主应变最大值出现在粘结界面边缘部位。根据其应变集中现象和观测结果说明了橡胶支座内损伤的萌生机理。
Multilayer steel plate elastometric bearings have been applied in the bridge engineering and construction engineering to reduce the earthquake device extensively, which usually making of some thin steel plates as reinforced layer. This study aims to investigate experimentally the experimental strain field ahead of laminated elastomeric bearing and cracking process synchronously with loading and deformation responses by testing. Strain field and cracks on the surface of specimen are observed and recorded synchronously with loading and deformation response. The images of specimen are analyzed by the coordinate grid analysis method. Fundamental for damage of elastomeric proposed in the paper.
出处
《试验技术与试验机》
2006年第2期10-13,共4页
Test Technology and Testing Machine
基金
江苏省交通厅基金研究项目<橡胶支座病害界定与支座更换技术>编号(05Y47)
南京东南大学大学生创新实践(SRTP)支持项目编号(06052220)
关键词
橡胶支座
粘结界面
应变场
网格
损伤
elastomeric bearing
interfacial bonding
strain field
micro grid
damage
