佳木斯大学学报(自然科学版)
佳木斯大學學報(自然科學版)
가목사대학학보(자연과학판)
JOURNAL OF JIAMUSI UNIVERSITY (NATURAL SCIENCE EDITION)
2015年
2期
194-197,230
,共5页
框架-核心筒结构%广义剪切变形%消能减震%优化布置
框架-覈心筒結構%廣義剪切變形%消能減震%優化佈置
광가-핵심통결구%엄의전절변형%소능감진%우화포치
frame-tube structure%generalized shear deformation%energy dissipation%optimal placement
框架-核心筒结构多为弯剪型或剪弯型结构,常用的反映层间变形的参数层间位移角或有害位移角不能很准确地反映结构局部变形特征。本文将常见的框架-核心筒结构形式划分为不同的平面区格,引入广义剪切变形,探讨不同区格广义剪切变形的变化规律及相互关系。本文提出了一种区格广义剪切变形简便计算方法,据此讨论了框架-核心筒结构优化布置金属消能器的问题。最后以实际工程为例,应用反应谱法和非线性时程分析法,分析了金属消能器布置在不同区格的减震方案对结构的减震效果,得到了金属消能器布置在核心筒与框架柱之间区格的方案的效果优于将其布置在外围框架柱之间区格的方案。因此,可为高层框架-核心筒结构消能减震设计提供一定的借鉴。
框架-覈心筒結構多為彎剪型或剪彎型結構,常用的反映層間變形的參數層間位移角或有害位移角不能很準確地反映結構跼部變形特徵。本文將常見的框架-覈心筒結構形式劃分為不同的平麵區格,引入廣義剪切變形,探討不同區格廣義剪切變形的變化規律及相互關繫。本文提齣瞭一種區格廣義剪切變形簡便計算方法,據此討論瞭框架-覈心筒結構優化佈置金屬消能器的問題。最後以實際工程為例,應用反應譜法和非線性時程分析法,分析瞭金屬消能器佈置在不同區格的減震方案對結構的減震效果,得到瞭金屬消能器佈置在覈心筒與框架柱之間區格的方案的效果優于將其佈置在外圍框架柱之間區格的方案。因此,可為高層框架-覈心筒結構消能減震設計提供一定的藉鑒。
광가-핵심통결구다위만전형혹전만형결구,상용적반영층간변형적삼수층간위이각혹유해위이각불능흔준학지반영결구국부변형특정。본문장상견적광가-핵심통결구형식화분위불동적평면구격,인입엄의전절변형,탐토불동구격엄의전절변형적변화규률급상호관계。본문제출료일충구격엄의전절변형간편계산방법,거차토론료광가-핵심통결구우화포치금속소능기적문제。최후이실제공정위례,응용반응보법화비선성시정분석법,분석료금속소능기포치재불동구격적감진방안대결구적감진효과,득도료금속소능기포치재핵심통여광가주지간구격적방안적효과우우장기포치재외위광가주지간구격적방안。인차,가위고층광가-핵심통결구소능감진설계제공일정적차감。
Generally , the frame-core tube structure is shear bending or bending shear type structure . The common inter-story drifts, which reflect inter-story deformation, or the harmful inter-story drifts cannot reflect the partial deformation characters of structures accurately .In this study , the common frame -core tube structures were divided into different plane grids , also , generalized shear deformation was introduced in order to discuss the deformation change law and mutual relationship of different grids .This paper proposed a simplified calculation method of generalized shear deformation and it studied optimal allocation of placing metallic dampers in frame-tube structure .Finally, a practical engineering was exemplified with the response spectrum method and nonlinear time history analysis method to analyze different damping effects of different dissipation schemes that metal energy dissipative devices were placed in different grids .The conclusion shows that the scheme that the mental dissipative devices are placed in grids between core tube and frame column is better than that placed in grids between the outer frame columns .Thus some experiences can be afforded for the design of energy dissi-pation in the frame-tube structure .