位移型耗能减震结构优化设计
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摘要
提出了一种应用于耗能减震体系参数设计的新型优化数学模型。模型目标函数体现了明确的设计意义,在保证几种地震波作用下结构最大层间位移角接近设计值的前提下,尽可能使得应用的耗能体系刚度最小。新模型同时解决了不同地震波作用下优化结果各不相同,优化参数难以选择的问题,是一种有效的优化设计方法。
A new mathematic model of parameter optimization for displacement-based energy dissipative devices subjected to earthquake is established.The model is characterized with an minimized sum of stiffnesses of energy dissipative devices as its objective function with a constraint that the maximum story-drift angle of the structure served by those devices is close to its designed value under exciting of several given earthquake waves.The problem that it is difficult to choose parameters of those devices due to their different optimal results with different earthquake waves acting is solved using this new model.An example is also illustrated to verify the proposed model.
A new mathematic model of parameter optimization for displacement-based energy dissipative devices subjected to earthquake is established.The model is characterized with an minimized sum of stiffnesses of energy dissipative devices as its objective function with a constraint that the maximum story-drift angle of the structure served by those devices is close to its designed value under exciting of several given earthquake waves.The problem that it is difficult to choose parameters of those devices due to their different optimal results with different earthquake waves acting is solved using this new model.An example is also illustrated to verify the proposed model.
引文
[1]中华人民共和国国家标准,建筑抗震设计规范(GB50011—2001)[M].北京:中国建筑工业出版社,2001.
[2]Singh M P,Moreschi L M.Optimal seismic response controlwith dampers[J].Earthquake Engineering&Structural Dy-namics,2001,30(4):553—572.
[3]Moreschi L M.Seismic design of energy dissipation systemsfor optimal structural performance,Virginia Polytechnic In-stitute and State University,2000.
[4]冼巧玲,周福霖,成文山.框架结构消能支撑的减震优化方法[J].世界地震工程,1999,15(2):49—55.
[5]冼巧玲,成文山,周福霖.消能支撑参数优化方法的进一步研究[J].湖南大学学报,2000,27(3):73—80.
[6]徐玉野,王全凤,罗漪.摩擦耗能支撑参数优化[J].华侨大学学报,2004,25(1):45—50.
[7]李宏男,常治国,赵柏东.微种群遗传算法优化结构振动控制[J].地震工程与工程振动,2002,22(5):92—96.
[8]李宏男,金峤.遗传BP神经网络主动AMD对偏心结构的减震控制[J].地震工程与工程振动,2003,23(2):134—142.
[9]Holland J H.Adaptation in nature and artificial systems.TheUniversity of Michigan Press,1975.
[10]Pezeshk S,Camp C V,Chen D.Design of nolinear framedstructures using genetic optimization[J].Journal of Structur-al Engineering,2000:126(3):382—388.
[2]Singh M P,Moreschi L M.Optimal seismic response controlwith dampers[J].Earthquake Engineering&Structural Dy-namics,2001,30(4):553—572.
[3]Moreschi L M.Seismic design of energy dissipation systemsfor optimal structural performance,Virginia Polytechnic In-stitute and State University,2000.
[4]冼巧玲,周福霖,成文山.框架结构消能支撑的减震优化方法[J].世界地震工程,1999,15(2):49—55.
[5]冼巧玲,成文山,周福霖.消能支撑参数优化方法的进一步研究[J].湖南大学学报,2000,27(3):73—80.
[6]徐玉野,王全凤,罗漪.摩擦耗能支撑参数优化[J].华侨大学学报,2004,25(1):45—50.
[7]李宏男,常治国,赵柏东.微种群遗传算法优化结构振动控制[J].地震工程与工程振动,2002,22(5):92—96.
[8]李宏男,金峤.遗传BP神经网络主动AMD对偏心结构的减震控制[J].地震工程与工程振动,2003,23(2):134—142.
[9]Holland J H.Adaptation in nature and artificial systems.TheUniversity of Michigan Press,1975.
[10]Pezeshk S,Camp C V,Chen D.Design of nolinear framedstructures using genetic optimization[J].Journal of Structur-al Engineering,2000:126(3):382—388.
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