振动台试验

• Firstly , the constitution and characteristic of ims system ' s is introduced . and the state of art is summarized . then the shock table test for a l / 2 . 7scale model of the very system performed by the institute of yunan province for earthquake engineering research is presented in detail
  首先介绍了预应力板(梁)柱体系的基本构成及其特点，总结国内外对该体系的研究现状，详细介绍了云南省工程抗震研究所对该体系进行的振动台试验研究情况。
• The semi - active logic control algorithm was proposed , which includes six kinds of semi - active logic control method . they are the semi - active logic control method a , b and c for single mr damper , the semi - active logic control method d , e and f for multiple mr dampers . a series of numerial simulation and experimental investigations on the seismic responses of the tall building with a podium structure using single damper / multiple mr dampers were first carried out on the seismic simulator in the hong kong polytechnic university on 2002 - 2003
  针对带裙房高层建筑地震反应的鞭梢效应问题，以瞿伟廉教授和徐幼麟教授提出的“ er mr智能阻尼器耦联的带裙房高层建筑结构地震反应的半主动控制”理论为起点，采取理论分析、计算机仿真和地震模拟振动台试验等研究手段，首次将基于泛布尔代数的逻辑控制方法引入结构控制领域，提出了半主动逻辑控制方法，包括单mr阻尼器半主动逻辑控制a 、 b 、 c和多mr阻尼器半主动逻辑控制d 、 e 、 f等六种。
• Considering the similitude law for shaking table test , we study the test results and obtain some conclusions which are a ) generally , the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration , b ) when the intensity is on and above eight degree , the silty soil deposit will be liquefied dramatically , c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great , the relationship is represent as a concave curve , or else as a protruding curve and tends to stability . ( 3 ) based on the triaxial compression test and the resonant column test , some studies are made such as a ) the duncan - chang parameters of constitutive model , b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits . in order to deal with the test data , a computer program is compiled
  ( 2 )利用小型振动台进行了k _ 0固结状态下粉土的振动液化模拟研究，通过分析正弦荷载作用下的试验资料，验证了粉土的孔隙水压力增长模式的合理性；从微分方程推导了基于土体振动台模型试验的相似律，并从模型实体、孔压时程曲线和相似律等方面做出了分析，得出了如下结论：在小型振动台试验中，模型箱中的粉土都发生了液化，液化的时刻和输入加速度幅值有关，而对频率的变化不太敏感；粉土在相当于8 9度地震烈度的加速度幅值作用下可能产生严重的液化；孔压的增长曲线形状与施加的荷载有关：当施加荷载为由小到大的形式时，曲线形状为上凹的曲线；当施加荷载为等幅的正弦荷载或荷载幅值由大到小时，曲线形状为上凸的曲线，且逐渐趋于稳定。
• In this paper , the author combines the theory analysis with the experiment research method , and discusses the seismic behaviours , 3d elaborate finite element analysis and simplified model analysis of a kind of multi - function tall building - " sub - shearwall supported by frame " , which is applied widely today . the main contents are as follows : in order to observe the failure process and the earthquake response of the complex structure , and to analysis the seismic behaviour of the structural system and structural members , a 1 / 20 cement mortor model of a complex tall - building which is about to be built was producted and the shaking table test of this model under 26 sorts of earthquake loads was made . using sap2000 finite element analysis program , a 3d analysis model was built in computer , and the elastic time - history analysis of the model was done
  本文采用理论分析和试验研究相结合的方法，研究了目前应用较多的综合性大厦? ?框支分区剪力墙高层商住楼的抗震性能及空间精细分析和简化分析方法，主要内容为以下几方面：对一拟建的复杂高层建筑结构，采用1 20比例的空间整体模型，进行了26种工况下的模拟地震振动台试验，观察了结构的破坏过程和地震反应，分析了结构及构件的抗震性能；建立了结构的精细空间模型，利用sap2000n大型有限元分析程序对结构进行了弹性时程分析；通过有限元分析与试验结果的对比，对结构的抗震性能和抗震能力做出综合评价，认为该结构由于转换层上部去掉部分楼板，既可满足建筑设计的通风、采光等要求，又可达到协调结构转换层上、下楼层抗侧刚度的效果，是一种较理想的有多道抗震防线的结构型式。
• Finally , shaking table experiments are carriod out , in which input several different character seismic waves with different acceleration peak value on several states of the shell model . the experimental results prove the theory research to be correct and show that the control strategy raised in this thesis is effective and feasible
  最后，进行了双层柱面网壳的被动控制减震试验，对于网壳在替换不同杆件数量、位置和输入不同加速度峰值的不同频谱特性的地震波下的地震反应进行了上百种工况的振动台试验。
• Abstract : by means of shaking - table test , the static and dynamic properties of high rockfill dams constructed on deep overburdens are researched ; the reasonability and correctness of the mathematical and mechanical models developed and employed in the numerical analysis , which simulate the interaction of dam mass - foundation , are proved
  文摘:通过振动台试验研究，探讨了修建在深覆盖层上的高堆石坝动力工作性态；验证了数值分析时建立的考虑坝体-地基相互作用的数学、力学模型的正确性。
• Based on the shaking table test , finite element analysis is applied to the structure , and the period , acceleration , displacement and torsion of the model under different seismic action are calculated compared test with finite element analysis results , the exactitude and reliability of each other are verified . based on comparison , further finite element analysis of the model is done , chiefly on the seismic reaction of the floor near the transfer floor and the loading of the components
  本文在振动台试验的基础上，对模型结构进行了有限元分析，计算了模型结构的周期和地震作用下的加速度、位移、和扭转等地震反应，将试验结果和有限元分析结果对比，验证了试验和有限元程序的准确性和可靠性，在对比的基础上，对模型结构进行了进一步的有限元分析，着重研究了转换层上下相邻层的地震反应和结构构件的受力情况。
• Based on a shaking table experiment of steel reinforced concrete frame - shearwall structure model with steel truss transfer stories and finite element analysis , its seismic performance is studies deeply . in order to evaluate the structural seismic performance , three approaches , shaking table experiment for simulating earthquake , time - history analysis method and static elastic - plastic analysis method , are used in this project
  本文的主要工作是研究和评估带高位大跨度钢桁架转换层型钢混凝土框架?剪力墙结构的抗震性能，为此，采用了三种方法：模拟地震振动台试验方法；弹性时程分析方法；弹塑性静力( push - over )分析方法，展开了对课题的研究。
• In the former , two computing modes of fem are built , aimed at the coupling of variable - profile pylon , curved - axis arch and flexible cable . the software algor feas is used to get the results of dynamic numerical analysis , such as natural vibration frequency , vibration mode , dynamic displacement , dynamic stress , which are compared with the results of shaking table test research to draw to important conclusions . these conclusions provide not only potent basis for the design and construction of nanjing century tower , but also reference for other pylon - cable - arch structures similar to the project
  在动态数值分析中，针对世纪塔变截面的塔身，曲线轴线的拱以及柔性拉索相互耦合时清况，建立两种有限元计算模式，利用有限元软件algorfeas得到动力数值分析的结果，如：自振频率、振型、动位移、动应力等等，再和振动台试验研究成果作比较，得到一些重要的结论，从而为南京世纪塔工程的设计和施工提供强有力的依据，而且为类以于世纪塔工程的其它塔-索-拱结构的设计也提供一定的参考。
• 4 , for the above optimal parameters , a large - scale shaking table model testing of the tmd seismic decrease structure using the el centra earthquake wave and an artificial earthquake wave ( rgb ) simulated by the trigonometric progression method is conducted . the above theories are approved through the analysis of the testing results
  4 、针对理论分析提出的tmd装置参数的优化取值，进行了tmd减震结构模型在elcentro地震波和由三角级数模拟法模拟的人工地震波( rgb )作用下的模拟地震振动台试验，试验结果验证了理论的正确性。