抗震

There is a trend to develop a simplified method for estimating the deformation of structure.

基于性能的抗震设计思想已得到国际上的普遍认可，其发展的一种趋势是建立简单的非线性方法确定结构非线性行为。

Taking the seismic acceleration response and horizontal bent angle as external forces, a simplified seismic calculating method considering train-bridge-earthquake interaction is proposed.

提出了以地震加速度响应和桥梁线路水平折角为外力的分阶段式考虑车—桥体系地震相互作用的简化抗震计算方法。

The influence of with or without longitudinal joint, with or without initial opening, with or without filling in the joints and different friction factor in the joint face and so on are studied on the seismic response of Fengman Dam. Thus the conclusions for gravity dams with longitudinal joints is drawn.

对于丰满重力坝，本文考虑了有、无纵缝，纵缝有、无宽度，纵缝有、无填充物及缝面的不同摩擦系数等情况，进行了静动组合的地震反应分析，对存在纵缝的重力坝的抗震特性得出了一系列规律性的认识。

There are mainly three key technical problems in the heightening project, which are opening of joint face between old and new concrete, seismic safety of the dam, and the curtain durability and reinforced grouting technology of the dam with high water head.

大坝加高中的关键技术研究难题主要有：新老混凝土结合问题研究、大坝抗震安全问题研究、高水头大坝帷幕耐久性及补强灌浆技术研究三大类。

On the basis of the knowledge highway's ruin of the past, in high earthquake intensity area of highway, underground structure may be fall into ruin for the seismic motion, especially, the entrance of tunnel is the weakest of the tunnel. As based on the soil-structure interaction model, adopting the soft of FLAC3D and numerical analysis method, the tunnel entrance has been computed by the elastic and plastic method, the results obtained are discussed and the measures for design and solution are presented.

根据以往的受震破坏经验，在公路隧道的高烈度地震带，地下工程可能会遭受严重震害，尤其洞口段为抗震薄弱区，本文采用FLAC3D软件，从土－结构相互作用模型出发，运用数值分析方法对隧道洞口段进行了三维弹性和弹塑性分析，得出了相应结论，并对结果进行分析，指出隧道抗减震设计中应注意的事项，并提出相应解决措施。

The paper introduces some researches, such as a new method to calculate the added mass for the seismic analysis of the fuel assembly in fast breeder reactor, simulation on the vortex shedding of double heat exchange tubes in a steam generator, simulation on the vortex shedding caused by the cross -flow over plates in a fuel assembly of an advanced reactor, the research on the impacting phenomenon of the free-surface on the vessel head in a storage tank as the main vessel of the China Experimental Fast Reactor shaken by the earthquake, and the researches on the solution of the liquid sloshing by moving particle semi-implicit and the scattering phenomenon caused by sloshing, and so on.

本文介绍华北电力大学在该方面的一些研究进展，例如，快堆燃料组件抗震分析新的流体附加质量计算方法研究；蒸汽发生器换热管双管漩涡脱落的数值模拟；一个先进堆燃料组件平行板上流动引起的漩涡脱落数值模拟；由地震引起的自由表面对快堆主容器冲击现象的研究；移动粒子法求解液面晃动及晃动引起离散现象的研究等。

In this paper the energy dissipation mechanism and anti-earthquake ductility design of ferroconcrete frame structure are expounded mainly.

文章主要阐述了钢筋混凝土框架结构的耗能机理和抗震延性设计的方法。

Therefore, the study for material damping of RC and CFST under forced vibration is urgent in theory and practice of seismic design and dynamic analysis of structures.

因此，钢筋混凝土和钢管混凝土受迫振动条件下的材料阻尼研究对工程结构抗震设计与动力分析具有重要的理论与实际意义。

By an example, I verify that the foresaid assessment and strengthening is an easy practical method and has a value of the engineering application.

通过算例分析说明，本文提出的抗震评估方法简单、实用，具有工程应用价值。

A further analysis of the structural systems having combination of RC shear-wall with block wall is worked out, calculation of seismic action is performed, a formula for computation of principle of work in coordination between RC shear-wall with block wall is put forward, and the program for computation source is given.

对钢筋混凝土剪力墙—砌块墙组合结构体系又进行了进一步分析，进行了地震作用计算，提出了钢筋混凝土抗震墙与砌块墙协同工作的计算公式，给出了计算源程序。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。