华南地震
華南地震
화남지진
SOUTH CHINA JOURNAL OF SEISMOLOGY
2014年
2期
19-24
,共6页
张雷%张永山%莊初立%汪大洋%蔡长青
張雷%張永山%莊初立%汪大洋%蔡長青
장뢰%장영산%장초립%왕대양%채장청
高层结构%风振控制%混沌遗传算法%黏弹性阻尼器%优化分析
高層結構%風振控製%混沌遺傳算法%黏彈性阻尼器%優化分析
고층결구%풍진공제%혼돈유전산법%점탄성조니기%우화분석
High-rise building%Wind-induced vibration control%Chaos genetic algorithms%Viscoelastie damper%Optimization analysis
将混沌遗传算法(Chaos Genetic Algorithm,简称CGA)引入高层结构的风振控制优化中,对采用黏弹性阻尼器来控制风振响应的高层结构进行参数优化;用Matlab语言编制了均布法、迭代法、简单遗传算法(Simple Genetic Algorithm,简称SGA)和混沌遗传算法的风振控制优化分析程序;对9个高层结构进行风振控制优化,对比了算法程序的计算效率以及无控、均布、迭代、 SGA和CGA工况下的结构风振响应。研究结果表明:混沌遗传算法可以应用于高层结构风振控制优化之中;混沌遗传算法的计算效率比简单遗传算法最高提升了29%;经混沌遗传算法优化后,黏弹性阻尼器附加给结构的附加阻尼比与均布和迭代相比最高分别提高了61%和22%, CGA工况的顶层加速度响应与均布和迭代法相比最高分别减小了14%和12%。为高层结构风振控制优化研究提供了新思路,具有一定的理论价值和实际意义。
將混沌遺傳算法(Chaos Genetic Algorithm,簡稱CGA)引入高層結構的風振控製優化中,對採用黏彈性阻尼器來控製風振響應的高層結構進行參數優化;用Matlab語言編製瞭均佈法、迭代法、簡單遺傳算法(Simple Genetic Algorithm,簡稱SGA)和混沌遺傳算法的風振控製優化分析程序;對9箇高層結構進行風振控製優化,對比瞭算法程序的計算效率以及無控、均佈、迭代、 SGA和CGA工況下的結構風振響應。研究結果錶明:混沌遺傳算法可以應用于高層結構風振控製優化之中;混沌遺傳算法的計算效率比簡單遺傳算法最高提升瞭29%;經混沌遺傳算法優化後,黏彈性阻尼器附加給結構的附加阻尼比與均佈和迭代相比最高分彆提高瞭61%和22%, CGA工況的頂層加速度響應與均佈和迭代法相比最高分彆減小瞭14%和12%。為高層結構風振控製優化研究提供瞭新思路,具有一定的理論價值和實際意義。
장혼돈유전산법(Chaos Genetic Algorithm,간칭CGA)인입고층결구적풍진공제우화중,대채용점탄성조니기래공제풍진향응적고층결구진행삼수우화;용Matlab어언편제료균포법、질대법、간단유전산법(Simple Genetic Algorithm,간칭SGA)화혼돈유전산법적풍진공제우화분석정서;대9개고층결구진행풍진공제우화,대비료산법정서적계산효솔이급무공、균포、질대、 SGA화CGA공황하적결구풍진향응。연구결과표명:혼돈유전산법가이응용우고층결구풍진공제우화지중;혼돈유전산법적계산효솔비간단유전산법최고제승료29%;경혼돈유전산법우화후,점탄성조니기부가급결구적부가조니비여균포화질대상비최고분별제고료61%화22%, CGA공황적정층가속도향응여균포화질대법상비최고분별감소료14%화12%。위고층결구풍진공제우화연구제공료신사로,구유일정적이론개치화실제의의。
The paper intvoduces the Chaos Genetic Algorithms to wind-induced vibration control of high-rise building optimization, and optimizes the parameters of high-rise building of using viscoelastic dampers to control wind vibration responses. The paper compiles the programs of uniform method, iterative method, simple genetic algorithms, Chaos Genetic Algorithms by Matlab. Meanuhile the paper analyzes the wind vibration control optimization of 9 high-rise buildings, and compares the calculation efficiency of the algorithm programs and wind-induced re sponses of above conditions. The analysis results show that CGA theory can be applied to optimize the wind vibration of high-rise buildings; computational efficiency of CGA algorithm is improved by 29% than that of simple genetic algorithm; Optimized by CGA, the additional damping ratio which the viscoelastic damper added to structure compared with uniform and iteration respectively is improved by 61% and 22%. While the acceleration of top layer compared with uniform and iteration respectively is reduced by 61%and 22%. A new idea of wind vibration control for the high-rise building optimization research will be provide, which has certain theoretical value and practical significance.