| 1. | The truss comprises four plane trusses each two panels and each panel has one diagonal brace . 桁架由四个平面桁架组成,每两个节间及每个节间均有对角撑。 |
| 2. | Plane trussed lattice grids 平面桁架系网架5 |
| 3. | The corresponding program is applied in several plane truss structures and developed to analyze space truss structures 编制了相应的程序,分析了几个平面桁架结构,并将这种方法拓展运用于空间桁架结构。 |
| 4. | Results of illustrative examples of a six - bay plane truss bridge model are given in order to demonstrate the effectiveness of the proposed procedure 最后,用一六跨平面桁架桥模型进行数值模拟,验证文中所提方法的有效性。 |
| 5. | Through the analysis of receiving force performance of staggered truss frame , this paper clearly proposed the principle that nodes construction scheme should be defined according to the plane truss form for the first time 本文通过对错列桁架体系受力性能的分析,第一次明确地提出了体系节点构造应该根据平面桁架形式来确定的原则。 |
| 6. | The simplified method , one time statically indeterminate plane truss , for the solution of sunflower - patterned cable dome and sunflower - patterned cantilever roof is introduced . this method is clear and convenient and the results are reliable 提出了采用一次超静定平面径向桁架结构,求解荷载态下葵花型索穹顶和葵花型环形挑篷内力和位移的简捷计算方法,该方法力学概念明确,思路清晰,计算简便,结果可靠。 |
| 7. | Cellular automata was applied to solve mechanical problem of plane truss , and the feasibility of which was discussed in this article . the characteristic of cell and the way of dividing cell were studied while presenting a program and its frame chart . the work load of the new method was not much because it neednt form a partial differential set or a general finite element robustness matrix . numerical computing results show that the new method has a rapid speed of convergence to nodal displacement and internal force of element , so it probably has a good prospect in solving solid mechanical problems 尝试用细胞自动机作平面桁架力学分析,探讨了该方法的可行性.给出元胞的划分方法和特性,列出计算框图并编制了相应的程序,由于不必形成结构的偏微方程集或有限元的总体刚度矩阵,计算工作量小.算例表明,该方法对结点位移和杆内力的收敛速度均较快,是一种分析固体力学问题有前景的新方法 |
| 8. | Referring to some type of the structure such as plane truss , grid truss and grid shell , the author dissertates the common construction technique including whole installation , integral propping up , integral lifting , high altitude construction in bulk , member assembly and sliding construction 结合大跨度钢结构的各种形式,如平面桁架、网架、网壳等,概要的论述了其一般的施工方法、工艺和技术要点,包括整体吊装法、整体顶升法、整体提升法、高空散装法、分单元吊装法和高空滑移法。 |
| 9. | This paper aims at bridge with high pier and long span adopting single or double featheredge piers , the stability of bridge in the whole construction process is analyzed combined with research conclusion of bridge stability and concrete creep and shrinkage , bridge construction period is divided according to actual construction - process and concrete creep and shrinkage regularity and structure is analyzed as plane truss at each time increment 本文针对常用单、双薄壁墩的高墩大跨径桥梁,结合国内外对桥梁结构稳定与混凝土徐变收缩的研究成果,对节段法施工的桥梁进行稳定性全过程分析方法研究。根据实际施工过程及混凝土徐变收缩规律对施工全过程划分时段,对每个具体计算时刻采用平面杆系结构进行计算分析,不同计算时刻具有不同的结构体系。 |