Simple method of hydraulic computation for dendriform waterallocation pipe net of water supply works in the rural area 农村供水工程树枝状配水管网水力计算简法
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First , the paper summarizes the development and application of architectural bionic structure and dendriform structure in domestic and international 本文首先对国内外建筑仿生结构和树状结构的发展及应用进行总结归纳。
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Second , the paper points out how to select the joint forms of dendriform structure by introducing the forms and material of trunks , branches and joints 其次通过对树状结构树干、树枝及节点的构造形式及材料进行介绍，指出如何对树状结构的节点形式进行选用。
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Dendriform structure is the building structure which is designed by the principle of zoology and undertaking force of tree among nature . it has particular practicability and appreciation ， and is applied rarely at home <中文摘要> =树状结构是根据自然界中树的生态及受力原理设计的建筑结构，具有独特的实用性和观赏性，目前在国内还很少应用。
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Then the paper introduced dendriform model and the principles of animation in skeletal animation , and introduced two improved skeletal ani mation techniques : vertex blending and bone blending . at last , implement of the whole system is finished 接着论文介绍了骨骼动画系统中的树型模型和动画原理，并介绍了改进基本骨骼动画系统的视觉效果的顶点混合和骨混合两种技术。
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And the system can be expressed with damage matrixes , which forms a clear and intact dendriform damage evaluated method , offering a practical basis of quantization for seismic design , seismic reinforcement and repair of buildings after earthquakes 该体系可用矩阵形式表示,总体上形成了层次分明、分支完整的树状评估体系,可以为抗震设计、抗震加固和震后维修提供明确实用的量化依据。
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Fourth , the paper treats two kinds of hoisting projects of high alititude construction in bulk and member assembly , hositing machine and plan layout , setting up scaffold and joints , and installing trunks , branches and joints etc . then in detail discusses the method which applys total station to measure three - dimensional coordinate of dendriform structure , including selecting survey sign points , creating survey system and converting survey coordinate system etc . the paper also deep research on the welding performance , welding method , welding process , welding stress and control , welding strain and rectification , weld defects analysis and weld quality inspection , and so on complicated heterogeneity steel weld proplems 接着系统的论述了高空散装法和分单元安装法两种树状结构吊装方案，树状结构吊装机械及平面布置，树状结构胎架及节点的搭设，以及树状结构树干、树枝和节点的吊装工艺等诸多工艺问题。详细的论述了采用全站仪对树状结构进行空间三维坐标测量的方法，包括测量标志点的选取、测量系统的建立及测量坐标的转换等问题。深入地研究了树状结构可焊性、焊接方法、焊接工艺、焊接应力及控制、焊接变形及矫正、焊接缺陷分析及焊接质量检查等复杂的异种钢焊接问题。
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From the basic attributes of circulation system , building compages and arrangement , space frame and sightline conforming , landscape controlling , i build the evaluating model of the dendriform index system . chapter 5 of the dissertation discuss the residential quarter project in chongqing to prove the maneuverability of the evaluating model 第四章是论文研究的重点,结合设计方法的总结,从交通系统与流线组织,建筑群体组合与布局,空间构架和视线整合,景观构成四个方向为主干分支,建立具有较强的可操作性的树状指标体系评价模型。
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Third , on the base of expatiating on experimental research method and theoretical research method of joints , the paper points out two kinds of valid methods , which are used to analyze the tube joints stress of dendriform structure by making use of semi - analytical method and inelastic large deflection finite element analysis method , confirms to apply the evaporative pattern casting process as the facture method of dendriform structure cast joints , and detailed dissertates the casting theory , casting process , generation cause and prevention measure of casting flaws , heat treatment method and inspection standard about cast steel joints 然后在阐述树状结构节点实验研究方法和理论研究方法的基础上，提出了利用半解析法和弹塑性大挠度有限元法两种有效分析树状结构管节点应力的方法，并给出两种方法的详细表达式及它们各自的优缺点。通过对铸钢件常见制作方法的介绍，确定了采用消失模法作为树状结构铸钢节点的制作方法，并详细论述了用消失模法制作铸钢节点的铸造原理、铸造工艺、铸造缺陷产生的原因及防治措施、铸钢节点的热处理方法以及检验标准。
