基于差异演化的砌体结构动力检测
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摘要
采用动力检测获得砌体结构低阶模态参数,结合差异演化算法对砌体结构层间刚度进行识别,并通过层间刚度与砌体轴心抗压强度的关系获得砌体结构的主要强度。数值算例表明,该方法简单高效,识别结果准确。可为既有砌体结构的性能检测提供一种新的方法。
A method of dynamic test for masonry structures using the low order modal parameters is presented. Differential evolution is utilized to achieve the identification of the storey stiffness of masonry structures. The strengths of masonry structure are obtained through the relevance between the storey stiffness and axial compressive strength. The numerical simulation shows the method is precise,simple and efficient. The method may become a new way of masonry structure test.
A method of dynamic test for masonry structures using the low order modal parameters is presented. Differential evolution is utilized to achieve the identification of the storey stiffness of masonry structures. The strengths of masonry structure are obtained through the relevance between the storey stiffness and axial compressive strength. The numerical simulation shows the method is precise,simple and efficient. The method may become a new way of masonry structure test.
引文
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[8]曹晖,林秀萍.结构损伤识别中噪声的模拟[J].振动与冲击,2010,29(5):106-109.CAO Hui,LIN Xiuping.Noise simulation of structural damage identification[J].Journal of Vibration and Shock,2010,29(5):106-109.
[2]张伟.基于粒子群优化算法的结构参数及损伤识别[D].上海:同济大学土木工程学院,2008.ZHANG Wei.Structural parameter estimation and damage identification based on particle swarm optimization[D].Shanghai:School of Civil Engineering,Tongji University,2008.
[3]张力.砌体结构基于群集智能的动力检测[J].福建建设科技,2009,(4):21-23.ZHANG Li.Dynamic test of masonry structure based on swarm intelligence[J].Fujian Constructional Technology,2009,(4):21-23.
[4]Storn R,Price K.Differential Evolution–A simple and efficient adaptive scheme for global optimization over continuous spaces[R].TR-95-012,CA:ICSI Berkeley,1995.
[5]Storn R,Price K.Differential Evolution–A Simple and Efficient Heuristic for Global Optimization over Continuous Spaces[J].Journal of Global Optimization,1997,11:341-359.
[6]施楚贤.砌体结构理论与设计[M].北京:中国建筑工业出版社,1992.SHI Chuxian.The Theory and design of masonry structure[M].Beijing:China Architecture and Building Press,1992.
[7]郑山锁,樊立新.采用脉动法检测与评定砌体房屋的质量[J].西安建筑科技大学学报,1996,28(4):472-476.ZHENG Shansuo,FAN Lixin.Testing and evaluating the quality of masonry buildings by pulsating method[J].Journal of Xi’an University of Architecture and Technology,1996,28(4):472-476.
[8]曹晖,林秀萍.结构损伤识别中噪声的模拟[J].振动与冲击,2010,29(5):106-109.CAO Hui,LIN Xiuping.Noise simulation of structural damage identification[J].Journal of Vibration and Shock,2010,29(5):106-109.
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