您现在的位置:建筑结构>> 期 刊>> 2008年>> 第10期>>正文内容
考虑竖向地震影响的滑移隔震结构及其参数优化
张延年1,刘丽1,邢然1,董锦坤2,朱朝艳2
摘 要
(1 沈阳建筑大学土木工程学院,沈阳 110168; 2 辽宁工业大学土木建筑学院,锦州 121001)
[摘要]对水平-竖向耦合地震作用下滑移隔震结构模型理论进行研究,建立其运动微分方程和滑移隔震结构参数优化设计模型。针对滑移隔震结构的特点,提出标准遗传算法的改进措施,并采用直接搜索算法与遗传算法相结合构成改进混合遗传算法。采用改进混合遗传算法对6层滑移隔震结构进行参数优化设计,可以很好地分析竖向地震作用对隔震层的影响。表明优化设计模型与优化设计算法对于滑移隔震结构的参数优化是有效的。
[关键词]结构振动控制;滑移隔震结构;耦合地震作用;参数优化;遗传算法
Parameters optimization of sliding base-isolated structure consideringeffect of vertical earthquake
Zhang Yannian1, Liu Li1, Xing Ran1, Dong Jinkun2, Zhu Chaoyan2(1 School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China;2 School of Civil Engineering, Liaoning University of Technology, Jinzhou 121001, China)
Abstract:In order to study the influence of the action of coupling earthquake in both horizontal and vertical direction to vibration control structure and improve the effect of shock absorption of sliding base-isolated structure, theory of sliding base-isolated structure under the action of earthquake in both horizontal and vertical direction is researched. A kinematic differential equation is also developed accordingly. The optimal model for sliding base-isolated structure is set up. In view of the characteristics of parameters optimization of sliding base-isolated structure, the improvement measures of standard genetic algorithm are put forward. A new direct search algorithm is proposed and combined with improved genetic algorithm, which formed improved hybrid genetic algorithm. The parameters of 6-story sliding base-isolated structure are optimized with improved hybrid genetic algorithm and the influence of the action of earthquake in vertical direction is improved effectively. The results by exemplification show that the optimal model and improved hybrid genetic algorithm are efficient for parameters optimization of sliding base-isolated structure.
Keywords:vibration control;sliding base-isolated structure;coupling effect of earthquake; parameters optimization;genetic algorithm
博士后科学基金资助项目(20060400971);建设部研究开发项目(06-k1-22);沈阳建筑大学省级重点实验室开放基金资助(JG200702)。
作者简介:张延年,博士后,副教授,Email:zhangyannian@sina.com。
参考文献
[1]WESTERMO B, UDWADIA F. Periodic response of sliding oscillator system to harmonic excitation [J]. Earthquake Engineering & Structural Dynamics, 1983, 11(1):135-146
[2]MASASHI IURA, KUNIHITO MATSUI. Analytical expressions for three different modes in harmonic motion of sliding structures[J]. Earthquake Engineering & Structural dynamics, 1992, 21(9).
[3]黄永林,孔建国,章熙海,等.基础隔震技术的发展及其对未来建筑设计思想的影响[J].工程抗震,2000,3(1):24-29
[4]NAKAJIMA K, LEMURA H, TAKAHASHI Y, et al. Pseudo Dynamic Testsand Implementa
tion of Sliding Bridge Isolators with Vertical Motion [C]//12WCEE-2000: 1365-1372
[5]张延年,刘剑平,李艺.双向耦合地震作用下的混合控制结构研究[J].沈阳建筑大学学报(自然科学版),2006,22(1):1-5
[6]张延年,李宏男.混合控制结构的多维动力分析与优化设计[J].土木工程学报, 2007,40(8):8-16
[7]MASASHI- IURA, KUNIHITO MATSUI. Analytical expressions for three different modes in harmonic motion of sliding structures [J]. Earthquake Engineering and Structural Dynamics, 1992,21(9).
[8]张延年,刘斌,朱朝艳.工程结构优化设计的改进混合遗传算法[J].吉林
大学学报(工学版),2005,35(1):65-69
[9]张延年,刘斌,李艺.建筑结构优化设计的改进进退遗传算法[J].哈尔滨
工业大学学报, 2006,38(3): 410-413.
[10]张延年,刘斌,郭鹏飞.混合遗传算法在工程结构优化设计中的应用[J].工业建筑,
2005,3
下载地址

    你还没注册?或者没有登录?这篇论文要求至少是本站的注册会员才能阅读!

    如果你还没注册,请赶紧点此注册吧!

    如果你已经注册但还没登录,请赶紧点此登录吧!