According to the engineering practice , the theoretical basis and method that survey directly the horizontal distance and height difference by the total station system as fourth grade and below fourth grade control network are put forward instead of surveying slant distance and zenith distance 摘要根据工程实践，提出了用全站仪直接测量平距、高差来代替测斜距、天顶距作四等及四等以下控制网测量的理论依据和方法，并以张河湾抽水蓄能电站施工控制网为例进行了比较计算。
Chapter ii analyzes the relationship between the internal force and distortion , expatiates the character of high - rise buildings " designing and emphasizes that the constructional continuance is an important designing guideline . chapter iii analyzes the shape of building designings , the ratio of height to width , how to lay lateral force resistant construct member , foundation designing ( see also " specification of construction and designing of high rise buildings " ) and discusses the designing principles in high rise building . chapter iv discusses how to choose the best project via the engineering structure of part d , jindu xiangshe , chap 本文共分五章，第一章介绍高层建筑的发展概况；第二章从结构内力和与变形的关系阐述高层建筑结构设计特点，并强调结构延性是重要的设计指标；第三章从房屋建筑平立面形状，房屋高宽比、抗侧力结构构件的平面及竖向布置，基础设计等几方面并结合《高层建筑结构设计与施工规程》论述高层建筑结构设计原则；第四章结合金都香榭d区高层住宅楼工程根据第二章及第三章的设计原则按芯筒-框架体系及多筒-框架体系两种不同的结构设计方案采用空间结构有限元分析程序进行结构内力及变形分析计算，通过比较计算结果选择最优结构方案；第五章小结，进一步阐明进行高层建筑结构方案优选的重要性。
The model of studying the reservoir deposition is one - dimension and two - dimension embedded mathematical model , which is a one dimensional model study the whole reservoir and the two dimensional model study some important parts of the reservoir by utilizing the one - dimensional model output data . for pushihe lower reservoir , one - dimensional model studies the whole reservoir , and the two - dimensional model study the part of reservoir of 4 . 5km in length near the intake of the pump - turbine , to study the layout of the deposition and the and concentration of the suspended load near the intake 在一维数学模型计算中考虑了两种一、二期工程的衔接方案，每种衔接方案又分别计算了五种降低水位运行的方案，即保持全年库水位不变、保持汛期库水位不变、和在洪水来临时把库水位降到65 、 64 、 63 、 62米等；每种方案又比较了两种起调流量( 1000和500m ~ 3 s ) ，总共进行了20个方案的比较计算。
At last this paper analyses some special - shaped section columns subjected to biaxialy loading using finite element program ansys7 . 0 , compares of analytical results , investigates the ductile behavior and bearing capacity of special - shaped r . c . columns . the reliability of analytical program compiled in the paper is verified 本论文最后采用大型有限元程序ansys7 . 0对几种异形截面柱构件进行了分析，通过比较计算结果，得出异形截面柱延性和承载力的变化规律，并检验本论文所编制分析程序的可靠度。
In this paper the shortcomings of the constant impedance control method has been analyzed , in accordance with efa system " s characteristics , requests of design and developing direction of efa control system an intelligent control method has been proposed . based neural network the model of the efa is established , which can pre - estimate the echo of control variable of efa . by analyzing the result of pre - estimate the control variable can then be adjusted in real time 本文分析了电弧炉恒阻抗控制存在的不足，在此基础上针对系统的特点和控制要求，参考国内外电弧炉控制的研究发展方向，提出了一种基于神经网络的电弧炉控制方法，即利用神经网络建立电弧炉模型，并对系统的响应进行预估，将对预估值和期望值进行比较计算并对实际控制量进行校正。
Corresponding exploited computing procedures are introduced in this paper . furthermore , significant conclusions that can be applicable in practice are also summarized , after contrasting the datum from engineering instances and laboratory model tests , statistically analyzing the differences between dissimilar distributions of pile rigidity , different variance coefficients and various relativity , and probing into manifold factors determining the internal force distribution of pile capping beam and correlative principles 最后，本文结合工程实例及模型试验结果，对几种地基土模型进行了比较计算，并对不同基桩刚度分布、不同变异系数，以及不同相关性等进行了大量的统计分析，对影响承台梁内力的各种影响因素及其规律进行了探讨，得出了一些可用于指导工程实践的重要结论。
At last , the comparative calculation and the random optimum analysis about differences between dissimilar distributions of pile rigidity , different variance coefficients and variance relativity were done with the datum from engineering instances . some significant conclusions are also made from the discussing of the factors influencing pile capping beam the internal force 最后结合工程实例，进行了比较计算，并对不同基桩刚度分布、不同变异系数、以及不同相关性进行了随机优化分析，对影响桩基承台梁内力的各种影响因素及其规律进行了探讨，得出了一些重要结论。
