基于状态空间法的SMA-复合支座隔震结构分析
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摘要
研究了SMA(shape memory alloy)绞线-叠层橡胶复合支座的工作原理,将结构控制理论中的结构状态空间法应用到该复合支座隔震结构的数值模拟分析中。建立了普通框架、安装叠层橡胶支座和安装SMA复合支座框架的结构状态方程,应用SIMULINK工具箱建立结构仿真模型,得出不同条件下框架结构的时程反应曲线。通过对比分析可以看出SMA-复合支座能很好地改变结构的隔震效果,应用状态空间法进行SMA-复合支座隔震结构的数值模拟分析简单准确。
The operating principle of SMA strands-composite bearing was studied,and the state space method of structure control theory was used in shock isolation analysis based on the composite bearing.The state space equation was established based on the common frame and the frame was controlled by laminated rubber bearings or SMA strands-composite bearings,and the simulation model was established by SIMULINK tool box,then the seismic responses under three conditions were gotten.The results show that the seismic responses are reduced obviously as using the composite bearing,and the state space method used in shock isolation analysis of SMA strands-composite bearing is simple and accurate.
The operating principle of SMA strands-composite bearing was studied,and the state space method of structure control theory was used in shock isolation analysis based on the composite bearing.The state space equation was established based on the common frame and the frame was controlled by laminated rubber bearings or SMA strands-composite bearings,and the simulation model was established by SIMULINK tool box,then the seismic responses under three conditions were gotten.The results show that the seismic responses are reduced obviously as using the composite bearing,and the state space method used in shock isolation analysis of SMA strands-composite bearing is simple and accurate.
引文
[1]高小旺,龚思礼,苏经宇,等编.建筑抗震设计规范理解与应用[M].北京:中国建筑工业出版社,2002.334-335.
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[4]李惠,毛晨曦.新型SMA耗能器及结构地震反应控制试验研究[J].地震工程与工程振动,2003,23(1):133-139.
[5]刘海卿,李忠献.应用形状记忆合金-橡胶复合支座的结构隔震[J].自然灾害学报.2006.15(3):123-127.
[6]刘海卿.形状记忆合金绞线-叠层橡胶复合支座及其结构隔震研究[D].天津.天津大学博士学位论文,2006.
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[9]刘伟庆,章征涛,欧谨.结构抗震控制的动态仿真分析方法研究[J].防灾减灾工程学报,2004,24(4):382-388.
[10]刘晶波.结构动力学[M].北京:机械工业出版社,2005.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997.38-115.
[3]倪立峰,李爱群,左小宝.形状记忆合金阻尼性能的试验研究[J].地震工程与工程振动,2002.22(6):129-134.
[4]李惠,毛晨曦.新型SMA耗能器及结构地震反应控制试验研究[J].地震工程与工程振动,2003,23(1):133-139.
[5]刘海卿,李忠献.应用形状记忆合金-橡胶复合支座的结构隔震[J].自然灾害学报.2006.15(3):123-127.
[6]刘海卿.形状记忆合金绞线-叠层橡胶复合支座及其结构隔震研究[D].天津.天津大学博士学位论文,2006.
[7]徐赵东,郭迎庆.MATLAB.语言在建筑抗震工程中的应用[M].北京:科学出版社,2004.
[8]秦东,范立础.钢筋混凝土结构倒塌全过程数值模拟[J].同济大学学报,2001,29(1):80-83.
[9]刘伟庆,章征涛,欧谨.结构抗震控制的动态仿真分析方法研究[J].防灾减灾工程学报,2004,24(4):382-388.
[10]刘晶波.结构动力学[M].北京:机械工业出版社,2005.
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