结构管 meaning in English
structural pipe
Examples
- Combined with the full scale models tested in - situ of prestressed concrete penstock with double circle unbonded strands and single circle bonded strands of xiaolangdi multipurpose dam project of yellow river , the advantages and disadvantages of two different prestressed systems are analyzed , the concrete stress distributions of the prestressed concrete penstock are induced and summarized during the whole tensioning strands stage . the consistence among the test results , the theory calculating and the three dimensional finite element analysis is proved . therefore , the theoretical method of prestressed concrete penstock is feasible
结合黄河小浪底水利枢纽工程在施工现场进行的采用双层双圈环形无粘结预应力钢绞线和单圈有粘结预应力钢绞线对排沙洞衬砌混凝土施加预应力的1 ： 1模型试验，对比分析了两种后张预应力施工体系的优劣，归纳总结了预应力筋束张拉过程中预应力混凝土压力管道结构管壁混凝土的内力分布规律，验证了模型试验实测数据、理论计算和三维有限元分析结果的一致性，确定了预应力混凝土压力管道理论计算方法的可行性。 - 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。