华南理工大学学报（自然科学版）
華南理工大學學報（自然科學版）
화남리공대학학보（자연과학판）
Journal of South China University of Technology (Natural Science Edition)
2015年
7期
92-99
,共8页
查晓雄%左洋%刘乐%王新捷
查曉雄%左洋%劉樂%王新捷
사효웅%좌양%류악%왕신첩
多层集装箱房屋%地震作用%隔震体系%滑移%等效阻尼比%力学性能
多層集裝箱房屋%地震作用%隔震體繫%滑移%等效阻尼比%力學性能
다층집장상방옥%지진작용%격진체계%활이%등효조니비%역학성능
multilayer container building%earthquake action%isolation system%sliding%equivalent damping ratio%mechanical property
针对目前广泛应用的多层集装箱房屋，提出了一种基于箱体之间摩擦耗能的滑移隔震体系。首先，建立了结构滑移隔震模型，并利用结构随机振动理论分析推导了层层滑移隔震结构各层等效阻尼比与摩擦系数之间的关系；然后，利用Abaqus非线性有限元软件建立了六层集装箱模型，对隔震结构、采用规范阻尼比的非隔震结构和采用等效阻尼比的非隔震结构分别在强震作用下的动力反应进行了弹塑性时程研究，分析了结构顶点位移、结构层间位移角以及结构层间滑移量等相关指标。结果表明：滑移隔震体系能有效减小结构各层最大位移；隔震结构和采用等效阻尼比的非隔震结构的最大层间位移角远小于采用规范阻尼比的非隔震结构；地震波的频谱特性会明显影响层层滑移隔震结构的动力反应。
針對目前廣汎應用的多層集裝箱房屋，提齣瞭一種基于箱體之間摩抆耗能的滑移隔震體繫。首先，建立瞭結構滑移隔震模型，併利用結構隨機振動理論分析推導瞭層層滑移隔震結構各層等效阻尼比與摩抆繫數之間的關繫；然後，利用Abaqus非線性有限元軟件建立瞭六層集裝箱模型，對隔震結構、採用規範阻尼比的非隔震結構和採用等效阻尼比的非隔震結構分彆在彊震作用下的動力反應進行瞭彈塑性時程研究，分析瞭結構頂點位移、結構層間位移角以及結構層間滑移量等相關指標。結果錶明：滑移隔震體繫能有效減小結構各層最大位移；隔震結構和採用等效阻尼比的非隔震結構的最大層間位移角遠小于採用規範阻尼比的非隔震結構；地震波的頻譜特性會明顯影響層層滑移隔震結構的動力反應。
침대목전엄범응용적다층집장상방옥，제출료일충기우상체지간마찰모능적활이격진체계。수선，건립료결구활이격진모형，병이용결구수궤진동이론분석추도료층층활이격진결구각층등효조니비여마찰계수지간적관계；연후，이용Abaqus비선성유한원연건건립료륙층집장상모형，대격진결구、채용규범조니비적비격진결구화채용등효조니비적비격진결구분별재강진작용하적동력반응진행료탄소성시정연구，분석료결구정점위이、결구층간위이각이급결구층간활이량등상관지표。결과표명：활이격진체계능유효감소결구각층최대위이；격진결구화채용등효조니비적비격진결구적최대층간위이각원소우채용규범조니비적비격진결구；지진파적빈보특성회명현영향층층활이격진결구적동력반응。
Aiming at the widely-used multilayer container buildings , a new sliding isolation system is proposed on the basis of the friction energy dissipation between containers .Firstly, a sliding isolation structure model is con-structed , and a relationship between the equivalent damping ratio and the friction coefficient of each layer of layer -upon-layer sliding isolation structure is derived through the random vibration theory .Then, a six-layer container model are constructed on the basis of the nonlinear finite element software Abaqus , and the elasto-plastic nonlinear time history of dynamic response for strong earthquake is investigated on an isolated structure , a non-isolated struc-ture of ordinary damping ratio and a non-isolated structure of equivalent damping ratio .Finally, the relative struc-ture indexes, such as the top displacement , the angular displacement between structural layers and the slip between structural layers, are analyzed.The results show that (1) the proposed sliding isolation system can reduce the max-imum displacement of each structural layer effectively; ( 2 ) the isolated structure and the non-isolated structure with equivalent damping ratio have much smaller maximum angular displacement between structural layers than the non-isolated structure with specification damping ratio does; and (3) the spectral characteristics of seismic waves can affect the dynamic response of layer-upon-layer sliding isolation structures significantly .
