考慮豎向地震影響的滑移隔震結(jié)構(gòu)及其參數(shù)優(yōu)化
張延年1，劉麗1，邢然1，董錦坤2，朱朝艷2
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(1 沈陽建筑大學(xué)土木工程學(xué)院，沈陽 110168； 2 遼寧工業(yè)大學(xué)土木建筑學(xué)院，錦州 121001)［摘要］對水平-豎向耦合地震作用下滑移隔震結(jié)構(gòu)模型理論進行研究，建立其運動微分方程和滑移隔震結(jié)構(gòu)參數(shù)優(yōu)化設(shè)計模型。針對滑移隔震結(jié)構(gòu)的特點，提出標準遺傳算法的改進措施，并采用直接搜索算法與遺傳算法相結(jié)合構(gòu)成改進混合遺傳算法。采用改進混合遺傳算法對6層滑移隔震結(jié)構(gòu)進行參數(shù)優(yōu)化設(shè)計，可以很好地分析豎向地震作用對隔震層的影響。表明優(yōu)化設(shè)計模型與優(yōu)化設(shè)計算法對于滑移隔震結(jié)構(gòu)的參數(shù)優(yōu)化是有效的。［關(guān)鍵詞］結(jié)構(gòu)振動控制；滑移隔震結(jié)構(gòu)；耦合地震作用；參數(shù)優(yōu)化；遺傳算法Parameters optimization of sliding base-isolated structure consideringeffect of vertical earthquakeZhang 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博士后科學(xué)基金資助項目(20060400971)；建設(shè)部研究開發(fā)項目(06-k1-22)；沈陽建筑大學(xué)省級重點實驗室開放基金資助(JG200702)。作者簡介：張延年，博士后，副教授，Email:zhangyannian@sina.com。參考文獻［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］黃永林,孔建國,章熙海，等.基礎(chǔ)隔震技術(shù)的發(fā)展及其對未來建筑設(shè)計思想的影響［J］.工程抗震,2000,3(1):24-29［4］NAKAJIMA K, LEMURA H, TAKAHASHI Y, et al. Pseudo Dynamic Testsand Implementation of Sliding Bridge Isolators with Vertical Motion ［C］//12WCEE-2000: 1365-1372［5］張延年,劉劍平,李藝.雙向耦合地震作用下的混合控制結(jié)構(gòu)研究［J］.沈陽建筑大學(xué)學(xué)報(自然科學(xué)版),2006,22(1):1-5［6］張延年,李宏男.混合控制結(jié)構(gòu)的多維動力分析與優(yōu)化設(shè)計［J］.土木工程學(xué)報, 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］張延年,劉斌,朱朝艷.工程結(jié)構(gòu)優(yōu)化設(shè)計的改進混合遺傳算法［J］.吉林大學(xué)學(xué)報(工學(xué)版),2005,35(1):65-69［9］張延年,劉斌,李藝.建筑結(jié)構(gòu)優(yōu)化設(shè)計的改進進退遺傳算法［J］.哈爾濱工業(yè)大學(xué)學(xué)報, 2006,38(3): 410-413.［10］張延年,劉斌,郭鵬飛.混合遺傳算法在工程結(jié)構(gòu)優(yōu)化設(shè)計中的應(yīng)用［J］.工業(yè)建筑,2005,3
