抗震的

The characteristic, difference and relation of the normal and inverse design are compared detailedly. The formula of the first and second class eigen sensitivity are given. For the horizotal vibration system of building structure, the sensitivity method and perturbation method are adopted to modify the dynamic characteristics. The inverse eigenvalue problem of Jacobi matrix and the positive, symmetry, band matrix are studied. The method of Evolutionany Computation is first used in the inverse design of building structure, the principal problems are studied. The features of aseismatic inverse design of building are analysed.

本文较详细地比较了正、逆设计的特点；给出了特征值和特征向量的一阶和二阶灵敏度分析公式；对于建筑结构水平振动系统，提出了结构动态特征的修改方法；对Jacobi矩阵及实对称带状矩阵的逆特征值问题进行了分析研究，首次将其引入建筑结构抗震逆设计中；首次将进化计算方法应用于建筑结构抗震逆设计中，对主要问题作了探讨；对建筑结构抗震逆设计的特点进行了分析，提出未来的发展方向和前景。

This paper expounds the importance of seismic design of building structure , and introduces the targets of seismic fortification and the contents of seismic design.

阐述了建筑结构抗震设计的重要性，介绍了抗震设防的目标和抗震设计的内容。

The seismic qualification for a diesel-generator assembly was performed in analytical way and a finite element model of the diesel-generator assembly including the diesel engine, generator, gear increaser and common under-frame was built. The strength of each component was checked in accordance with the corresponding 1andards and codes and the structure integrity of die diesel-generator assembly under seismic loads was evaluated.

本文采用分析方法对抗震Ⅰ类设备柴油发电机组进行抗震鉴定，对包括柴油机、发电机、齿轮箱和公共底架在内的柴油发电机组建立有限元模型进行抗震分析，并根据相关规范和标准对柴油发电机组各部件进行应力评定和强度校核，对柴油发电机组在地震载荷下的结构完整性作出评定。

Our country is located in the Pacific Ocean , the Asia earthquake zone , geologicstructure is complicated, is that a earthquake sends out the country muchly.

另外，国内一些已建的建筑结构，结构存在一些薄弱环节或总体上抗震能力不足，如何最佳的对这些已建的建筑结构实现抗震加固，保证它们满足现今的抗震设计要求，也是一个有待解决的问题。

The announcement emphasizes, new release " construction project is aseismatic fortify classifies a standard " and " build aseismatic design standard "(the following abbreviation " new standard ") to assuring to build project mass, directive disaster area restores to rebuild, raise our country to build a project aseismatic fortify ability, safety of property of life of tutelar the people's livelihood has important sense.

通知强调，新发布的《建筑工程抗震设防分类标准》和《建筑抗震设计规范》对保证建筑工程质量，指导灾区恢复重建，提高我国建筑工程抗震设防能力，保护人民生命财产平安具有重要意义。

Based on the characteristics mentioned above, according to three level security principle, the antiseismic performance of this bridge is also evaluated with these methods.

根据&三水准&设防原则，分析评价了该桥的综合抗震性能，为该桥的建设和抗震设计提供了参考，也为进一步研究该类桥型的抗震性能提供了分析基础。

How to ensure this new structure to be in elastic state under frequent earthqu ake, be mendable under design earthquake and not collapse under infrequent earthquake, especially the last item, is the problem to be solved imminently in engineering field. Center around this problem, 5 aspects of investigation are carried out as following:(1) The experiment of seismic performance of ASCCs in this new frame structure has not been reported, in order to study this problem, 9 ASCC specimens with shear steel plate are tested subjected to the horizontal low cyclic loading, in which, the shear span ratio is 3 and axial compression ratio is different. The hysteretic curves of 9 specimens are obtained. The seismic performance indexes such as energy dissipation, stiffness degradation, strength degradation, skeleton curves and ductility of this kind of column are acquired, and the seismic fortification measures including ultimate values of axial compression ratio under different seismic degree are suggested.

1新型框架结构中所采用的角钢混凝土柱抗震性能的试验研究尚未见报道，针对这一问题，本文进行了9根剪跨比为3、不同轴压比、采用钢板箍的角钢混凝土柱在水平低周反复荷载作用下的试验研究，获得了9根试验柱的滞回曲线，考察了该类柱的耗能、刚度退化、抗力衰减、骨架曲线及延性等抗震性能指标，建议了角钢混凝土柱在不同抗震等级下的轴压比限值等抗震构造措施。

A model of trashrack is established for Guanyinyan Hydropower Station and the strength computation is based on the 3D dynamic FEM for the construction.

建立了观音岩电站拦污栅结构模型，基于三维动力有限元法对其进行抗震分析，计算得到结构的5阶自振特性，根据文献[1]规定的振型分解反应谱法以及动静结合的方法对结构进行动力分析，对结构的抗震安全性能作出评价，并指出了抗震薄弱部位。

As an example, the deposited oil Offshore Platform BZ28-1 of BohaiOil Field in China was numerated with genetic algorithms. The results show that the proposed method is significative in the design of the platforms.5. Theory and method of optimum design of earthquake-resistant structures based on optimal fortification intensity were introduced. Optimum design was performed for Platform BZ28-1 of Bohai Oil Field in China according to principle of three-level fortification and aseismic design method of two-stage of code for aseismic design of buildings.

介绍了基于最优设防烈度的抗震结构优化设计的理论和方法，并以渤海油田BZ28-1储油平台为例，在目标函数中既考虑了结构的造价又考虑了损失期望，根据&小震不坏、中震可修、大震不倒&三个水准的抗震设防原则，利用抗震规范的&二阶段&抗震设计方法，对其进行了结构优化设计，得到了考虑造价和损失期望、基于最优设防烈度的最优设计方案。

Concept and state of the art of design methods of plate——column structure and plate——column and shearwall structure are bri......

基于板-柱结构及板柱-剪力墙结构的概念和设计方法现状，从风载和常遇地震作用下结构的顶点侧移，静力弹塑性分析结果，节点抗震性能以及结构振型分析等几个方面，评价了板-柱结构的抗震性能，并对板柱-剪力墙结构的抗震性能进行了初步探讨。

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。