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   基本自振周期 在 建筑科学与工程 分类中 的翻译结果: 查询用时:0.827秒
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基本自振周期     
相关语句
  fundamental natural period
    THE APPROXIMATE CALCULATION METHOD ON FUNDAMENTAL NATURAL PERIOD OF VIBRATION FOR MULTISTOREY AND HIGH-RISE STEEL FRAME STRUCTURE OF FLEXIBLE CONNECTION
    柔性连接多高层钢框架结构的基本自振周期近似计算方法
短句来源
    Determination of Fundamental Natural Period of Multistory Frame by Using Moveable Method of Concentrated Mass
    用集中质量迁移法求多层框架的基本自振周期
短句来源
  fundamental natural period of vibration
    THE APPROXIMATE CALCULATION METHOD ON FUNDAMENTAL NATURAL PERIOD OF VIBRATION FOR MULTISTOREY AND HIGH-RISE STEEL FRAME STRUCTURE OF FLEXIBLE CONNECTION
    柔性连接多高层钢框架结构的基本自振周期近似计算方法
短句来源
  natural vibration period
    At present, the main questions which exist in the absorber tower structure design are: (1) How to confirm the structural natural vibration period in wind load calculation.
    现阶段对于吸收塔结构设计中存在的主要问题是:(1)风荷载计算中,结构基本自振周期如何取值;
短句来源
    The results which take the composite effect into account show that the natural vibration period is shorter by 13.4%,the stiffness of the structure is larger than not.
    计算结果表明,考虑钢框架的组合作用后,结构整体自振周期变短,基本自振周期降低了13.4%,说明结构整体刚度变大.
短句来源
    But considering the rigidity of joints,the natural vibration period is larger by 17%,the drifts of earthquake are larger,and the top drifts is larger 8% and 11%. the rigidity of composite joints can not be ignored in earthquake.
    但考虑节点刚度后,地震周期又有所加大,纯钢框架及组合框架基本自振周期均增大了17%,相应地震位移变大,2种模型的反应谱法分析顶层位移分别增大了8%,11%,说明组合节点刚度对结构的抗震性能是不可忽略的因素.
短句来源
  “基本自振周期”译为未确定词的双语例句
    This results in lacked for the anti-collapse capability when a destructive earthquake hit, while it was considered sufficiently according to GBJ11-89.In this paper, we first collect 63 results of sites seismic hazard analysis completed in past more ten years.
    根据对近些年来完成的工程场地地震安全性评价和地震小区划工作所取得在56个场地上130个场点的场地相关反应谱进行统计分析的结果表明,89规范中设计反应谱的由于反应谱下降段拐点周期取值偏小,造成了在设计反应谱上较长周期部分(结构基本自振周期大于拐点周期的部分)的谱值偏小,有些情况下相差很大。
短句来源
    3. Main effect factors of errors include the fundamental self-vibration cycle of structure, proportion of flex stiffness to cutting stiffness, mass proportion of high span to low span, site type and the length of mill building.
    3.主要影响误差变化的因素有:结构的基本自振周期、结构的弯剪刚度比、高低跨质量比、场地类型、厂房单元长度。
短句来源
    In this paper, on the basis of the theory for seismic calculation of structure and by the use of certain approximate assumptions, formulae for reasonable natural period of high-rise building structure can be derived out according to the number of stories and total height of the building.
    本文根据结构抗震基本计算理论,在采用一定近似假定的前提下,导出了高层建筑适宜基本自振周期公式,按此公式,只要根据建筑物的层数及总高,就可以方便地求得该建筑适宜的自振周期。
短句来源
    ANSYS is employed to determine the modal analysis. The results obtained from finite element analysis are consistent well with those obtained from formula.
    使用通用有限元程序ANSYS进行结构的模态分析得到结构的基本自振周期 ,有限元分析结果和公式计算结果吻合良好。
短句来源
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  fundamental natural period
One of the significant effects of considering soil-structure interaction in the analysis of structures is the increase in the fundamental natural period compared to the fundamental natural period of a similar structure, fixed at the base.
      
An equation, similar to the equation recommended by ATC, is presented to estimate the fundamental natural period of structures supported on pile foundations.
      
Ta is the fundamental natural period of vibration for MI-RC frames.
      
  fundamental natural period of vibration
Ta is the fundamental natural period of vibration for MI-RC frames.
      
  natural periods
It is noted that for different structures with different predominant natural periods and at different sites where structures are located the severest design ground motions are usually different.
      
The proximity of the natural periods of the high rise buildings and the modal periods of the Los Angeles basin enabled efficient energy transfer from shock wave to seismic wave.
      
Such phase jumps probably stem from the interaction of two oscillators with different natural periods rather than from threshold changes for the expression of activity.
      
The relatively low natural periods of the platform, about 1.9 sec vertical and 6.5 sec horizontal, provide sufficient isolation from local vibrations that calibration can be made near operational amplitudes.
      
Spectral analysis of the digitised waveforms has been undertaken to compare the effects of the different sources and to estimate the characteristic natural periods of Rabaul Harbour.
      
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It is important to select reasonable natural period of high-rise building in seismic design. In this paper, on the basis of the theory for seismic calculation of structure and by the use of certain approximate assumptions, formulae for reasonable natural period of high-rise building structure can be derived out according to the number of stories and total height of the building.By selecting the reasonable natural period of tall building, the moment of inertia of shear walls of the tall frame-shear wall structure...

It is important to select reasonable natural period of high-rise building in seismic design. In this paper, on the basis of the theory for seismic calculation of structure and by the use of certain approximate assumptions, formulae for reasonable natural period of high-rise building structure can be derived out according to the number of stories and total height of the building.By selecting the reasonable natural period of tall building, the moment of inertia of shear walls of the tall frame-shear wall structure could be determinted.In addition, there are some examples to show the procedure and main points of using the formulae.

设计地震区的高层建筑时,选择结构的适宜自振周期是十分重要的。本文根据结构抗震基本计算理论,在采用一定近似假定的前提下,导出了高层建筑适宜基本自振周期公式,按此公式,只要根据建筑物的层数及总高,就可以方便地求得该建筑适宜的自振周期。利用选定的结构适宜自振周期值,文中还进一步导出了如何确定高层框剪结构合理剪力墙数量的方法。最后举有实例,说明应用本文公式的步骤和要点。

The author, based on his previous paper "Method of Rigid Frame Analogy" fries to further develop the adopion of "improved energy method" to calculali basic vibration period of ohear-walled Tall building structure with grand hall space at ground floor. Then, by use of analised result of calculated stress, side displacement produced by the supposed horizontal force, during the procedure of calculating vibration period, to multiply a conversion coefficient, a result of actual seismic stress and side-displacement...

The author, based on his previous paper "Method of Rigid Frame Analogy" fries to further develop the adopion of "improved energy method" to calculali basic vibration period of ohear-walled Tall building structure with grand hall space at ground floor. Then, by use of analised result of calculated stress, side displacement produced by the supposed horizontal force, during the procedure of calculating vibration period, to multiply a conversion coefficient, a result of actual seismic stress and side-displacement will be obtoined. This method is easy and simple to handle, particularly adatable to manual calculation work,and also can be used as abase for formulation of programmes for micro-computer.

本文在作者提出的“比拟刚架法”的基础上,进一步采用“改进能量法”来计算离层建筑底层大空间剪力墙结构的基本自振周期,然后利用在计算自振周期时对该结构在假想水平力作用下的内力及位移的分析结果,乘以一个换算系数,即可直接求得实际地震内力及位移,省去了一般方法在求得自振周期及地震力后,需要重新分析结构以求得地震内力和位移的过程,从而使计算工作大大简化,本文方法特别适合于手算分析,并可作为编制微机程序的依据。

The formula for determination of fundamental natural period of multistory frame have been derived in this paper by simplifying multistory frame as a multiple-degree-of-freedom systems with concentrated mass on the story and then transforming it into a single-degree-of-f reedom system, moving the concentrated mass onto the apex of the frame. The value D can be taken as the lateral stiffness in this formula so that the calculation is very simple and convenient. The results obtained by the given method are compared...

The formula for determination of fundamental natural period of multistory frame have been derived in this paper by simplifying multistory frame as a multiple-degree-of-freedom systems with concentrated mass on the story and then transforming it into a single-degree-of-f reedom system, moving the concentrated mass onto the apex of the frame. The value D can be taken as the lateral stiffness in this formula so that the calculation is very simple and convenient. The results obtained by the given method are compared with those obtained by matrix iteration method,energy method,and statistical formula specified by 《National Aseismatic Design Code for Industrial and Civil Buildings》,showing satisfactory agreement.

本文通过把多层框架简化为质量集中于楼层位置的多自由度体系,再将楼层处的质量迁移到框架的顶层使其转化为单自由度体系,从而推导出多层框架基本自振周期的计算公式。公式中抗侧移刚度采用“D”值,因而多层框架基本自振周期的计算相当简便。将按本文方法计算的结果与按矩阵迭代法、能量法以及国家《建筑结构设计抗震规范》中建议的统计公式计算的结果进行了对比,证明采用本文方法计算的结果比较可靠。

 
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