结构连接

Finally, in order to improve the efficiency of the calculation and design, a software on finite element graphic treatment using VBA connecting Fortran program and AutoCAD 2000 is developed to make structural analysis easier than before, with which the internal forces figures (including bending moments, axial forces and shearing forces) and structural deformation figures are drawn automatically.

为提高设计计算的效率，利用VBA开发了相应的有限元图形处理软件，该软件实现了FORTRAN程序与AutoCAD的连接，利用杆系有限元程序计算得到的结果，自动绘制出内力图以及结构的变形图，图形的自动形成使得计算成果的分析工作简洁、方便。

The article introduces a kind of new quick opening blind flange structure which adopting self-energizing seal way and connecting by lock rings.

叙述一种采用自紧密封方式的，由锁环连接的新型快开盲板结构。

Choosing the fitting fasteners and controling the preload is the key to ensure the reliability of screw joint structure.

保证螺纹连接结构可靠性的关键是选用合适的紧固件并控制其预紧力。

The VCL method and the displacement method are used to calculate the Stress Intensity Factors of semi-elliptical surface crack at the root of pipe screws, on the basis of which a simplified calculating model for screws contact is put forward so as to analyse the fracture intensity for oil drill pipe screw coupling. For the semi-elliptical surface crack with different shape and deep ratio at the root of female and male screws and the corner of male flange, the SIF has been studied systemically under inter-pressure, tension, bend and torsion loads and the approximate formulas encluding the structure parameters of oil drill pipe screw coupling, deep ratio and the shape parameters of surface crack are developed.

对工程实际中的多种石油钻杆接头螺纹连接件，就公螺纹齿根、母螺纹齿根、公螺纹台阶转角处存在的不同形状、不同厚度比的半椭圆表面裂纹，在拉伸、内压、弯曲、扭转多种载荷作用下的应力强度因子作了系统研究，在大量有限元计算基础上，建立了包含接头结构参数、裂纹形状、厚度比在内的近似计算公式。

YG832 Electronic Multifunctional Stretcher,adopting AC servo system and exactitude screw arbor drive,has many characteristicses,such as reasonable structure,simple operation,low noise and smooth run etc,adopting SCM control,displayed by LCD,intellective interface,deposit the data into the database if connected with the computer.

YG832多功能拉伸仪，采用交流伺服驱动，滚珠丝杆传动，具有结构合理，操作简单，噪声低，运行平稳等特点，电器控制采用单片机控制，液晶中文显示，人机对话界面，与电脑连接可建立数据库。

And effective methods are introduced for the reinforcement of steel beam,the connection of platform post with original steel beam,roof reinforcement and opening treatment.

结合中国民族工商业博物馆加固改造工程实例，讨论近代砖混结构加固改造设计中应考虑的若干关键问题，并介绍钢梁加固、平台柱与原钢梁连接、屋面加固、开洞处理等具体作法。

Many studies on the behavior of beam-column connections used in steel moment resisting frame and their effect on seismic behavior of steel frames have been carried out.

地震后人们对钢框架梁柱连接性能及其对钢框架结构抗震性能的影响进行了大量研究。

Some preliminary studies have been conducted for automatic mesh generation and adaptivity, and solid—shell element connection.

对有限元技术中的网格自动剖分和网格自动调整，以及组合结构分析中的体—壳连接问题进行了初步研究，编制了相应的有限元程序。

Some substances form glasses especially easily, commonly ones in which atoms are covalently bonded to relatively few neighbors

对于一些物质形成石英结构尤其的容易，这通常是那些原子以共价键连接到相对较少的临位上的物质。

Rupture of critical parts of a structure comprising components, crosssections an

由部件，横截面和连接组成的结构关键部件的破裂，原因有

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。