Full - process simulation of oil refinory covers the whole process of petroleum processing , which is a very comflex system . it is related to the analyse and synthesis of process , model development , testing and standardsizirig of unit modelsthis thesis emphasizes on the integration of unit model 炼油企业全流程模拟是对炼油企业原油加工全过程，即从原油进厂到产品出厂全过程的生产进行模拟，它是一个很复杂的系统，涉及流程的分析、综合，单元模型的开发、测试、整定以及模型的规范化等问题。
At the same time it has the shortcoming of complex mechanics analysis . in this thesis we mainly discuss the structure behaviors of the mega structure . firstly considering the differences between mega - frame and normal - frame , that is the influence of rigid zone and shearing type deformation are considered . a computer program for calculation of mega - frame structures based on element stiffness matrix to members with rigid zone considering shearing type deformation has been written and some of mega - frames have been calculated by using the program 首先,根据巨型框架与普通框架的主要区别,采用带刚域杆件考虑剪切变形时的杆单元模型,利用fortran语言编制了巨型框架结构线弹性有限元静力分析程序,并利用该程序对多个巨型框架结构进行了计算,分析了巨型框架结构的静力性能,深入研究了结构在竖向荷载和水平荷载作用下的传力机理、力学特性和变形特点。
Firstly , the parameters controlling ductile crack growth are gotten from the resistance curve result of standard 3 point bending specimen , then the resistance curves of the tension specimen for the welded joint with different strength mis - matching are predicted based on the cell model 首先由标准三点弯曲试件的阻力曲线，得出反映材料微观损伤的特殊单元模型控制参量，再根据该参量对不同接头强度匹配下双边缺口拉伸试件的阻力曲线进行了定量预测，其结果与试验结果相当吻合。
Also the modeling of the super - length tall buildings is provided . the whole structure of super - length tall buildings is chosen as an object of study , and a worldwide used large - scale structural analyzing program named super sap93 is also chosen to decentralize the structure into elements . the beams and columns of the structure are modeled as dimensional beam components , and the floor slabs and sheer walls are modeled as dimensional slab components 本文以超长高层建筑整体结构为研究对象，采用国际通用的大型结构分析程序supersap93对超长高层建筑结构进行有限元离散，结构的梁和柱采用空间梁单元模型，楼板和剪力墙以及筒体结构采用空间板单元模型，建立实用的超长高层建筑结构整体结构分析模型。
Secondly , the effort is made to develope new type of transition element for multi - scale fatigue damage simulaton of long - span structures for the transition between elements for the hot spot stress analysis and the structural element . the linear and piecewise linear interplotion function for displacement interplotion are used for the transition element formulation according to the displacement compatibility requirement between element interfaces 在综合已有的构造过渡单元模型关于位移插值形式的基础上，通过采用分段线性位移插值模式和线性位移插值方式，并在位移模式中引入非协调位移模式，强迫构造单元通过分片试验，构造了一种用于疏密网格单元连接过渡单元。
Some problems such as the element model , the hysteresis model in the nonlinear time - history analysis of rc structure are summarized in the paper . according to the result of 3 - dimension elasto - plastic time - history analysis , the author compares the seismic capability of these structures . the conclusions are of referential values for seismic design for similar structures 文中对钢筋混凝土结构弹塑性时程分析中涉及到的杆件单元模型选择、恢复力模型确定等问题作了系统概述，依据三维弹塑性时程分析的结果，综合比较了各种结构的抗震性能，可供类似结构设计时作参考。
On the basis of all the above , associating with the practical engineering project of the surgery ward building of hospital xiehe of hust and taking the soil - pile - raft interaction into account , the finite element models based on kirchhoff ' s thin plate and reissner ' s moderately - thick plate theories are separately then the established 3 dimension solid finite element model as the verifying standard 在此基础上，结合华中科技大学附属协和医院外科病房大楼工程，在考虑地基、桩和筏板的相互作用的情况下，以基于三维空间理论的实体有限单元模型为衡量标准，对同一结构(筏板)分别用薄板和中厚板单元建立有限单元模型进行计算。
