大高宽比橡胶垫隔震结构振动台试验研究_1_.pdf

38 12 V ol138 N o1 12 2 0 0 6 12 JOURNA L OF HAR BIN INST ITUTE OF TECHNOLOGY D ec. 2006 ( 1) 1 1 2 2 王铁英 , 王焕定, 刘文光 , 张永山 1. , 150090, E-ma i:l w ty- jg lx@ sina. com; 2. 5 10405) : 介绍了相似比为 5高宽比为 31 1的模型结构振动台试验结果及初步分析. 首先介绍了铅芯橡胶 的隔震设计及橡胶 静力研究结果, 橡胶 隔震模型结构振动台试验的试验计划, 给出了 8度多 个地震波作 用下的试验结果. 试验结果的分析表明, 模型结构在 8度 E l- Centro波罕遇地震作用下, 位移和加速度反应 都很大. 橡胶 在垂直方向的刚度已经进入到非线性阶段, 橡胶 存在承载力失效的危险, 且模型竖向颠动 和水平晃动现象都很严重, 被迫停止试验, 说明隔震结构在高烈度地震作用下是存在倾覆危险的. : 高烈度区; 橡胶 隔震结构; 振动台试验; 倾覆 : TU 3521 1 : A : 0367 - 6234 2006) 12- 2060 - 05 On large height-width ratio rubber bearings isolation structure 1 1 2 2 WANG T ie-y ing , WANG H uan-d ing , L IU W en-guang , ZHANG Y ong- shan 1. Schoo l o f C iv il Eng ineer ing, H a rbin Institute o f T echno logy, H arbin 150090, Ch ina, E-m a il: w ty jg lx@ s ina. com; - 2. Schoo l of C iv il Eng ineer ing, G uangzhou U n ive rs ity, Guang zhou 510405, Ch ina) Abstract: The shak ing table test and analysis on a m odel structure are done. T he resem ble ratio of mode l structure is 5, and its height- w idth ratio is 311. A t first, the design process and the static test result of the designed lead- plug rubber bearings are introduced. Second ly, the load p lan of the shaking table test on the rubber bearing iso lation m ode l structure is put out. T hen the test result of intensity o f for