| 1. | By using the singular - value - decomposition method , a little program has been developed to get the self - equilibrium stress mode of several typical cable truss structures
本文从pellegrino提出的奇异值分解法出发，利用自行开发的程序，求解了几种典型的大跨度空腹索桁结构的自应力模态。 |
| 2. | The advantages of the prestressed cable truss are the high structural efficiency and the architectural aesthetic feeling . this system is often used to act as structural support of point - supporting glass curtain
预应力索桁架具有结构结构上的高效性和建筑上的美观性，常用作点支式玻璃幕墙的结构支承。 |
| 3. | But because of the complexity of this kind system principle and the difference of the research emphases , now the theoretical researches and analysis methods of the prestressed cable truss are in disorder and have their novelty
由于该结构体系原理的特殊性和研究重点的不同，导致目前现有的研究理论和成果分布极为零乱且各具特点。 |
| 4. | At last , for direct realization of this kind of structure system , an experiment of cable truss structure with d5 and 16 trusses has been done to check its distribution of self - equilibrium stress
最后，为了对本结构体系有更直观的感性认识，向时也为了进一步验证理论分析的正确性，本文对一直径5米、由16榻索析架组成的环形索析结构模型进行了实验研究。 |
| 5. | Therefore , the prestress of the cable should make sure that the cable is in the tight state in the entire process . the largest wind load which the prestressed cable truss can undertake is studied emphatically in the article
因此，索中初始预应力应能保证索在工作的全过程中始终处于张紧状态，以此为条件，本文重点研究了预应力索桁架所能承受的最大风荷载值。 |
| 6. | The large - span annular open - web cable truss structure is a new type of tensile structure based on cable dome . especially it is suitable for awning structures of palestra . little research work on this type of structure has been done abroad , and at home the research is blank
大跨度环形空腹索桁结构体系是继承于索穹顶结构、近年来才出现并应用于实际工程的新型结构体系，具有显著的特点，特别适合应用于体育场的罩棚结构。 |
| 7. | First , based on the reading of a lot of literatures , a view of the history of tensegrity structures and cable dome structures is put forward in this paper , as well as the expatiation of the architectural and structural property on the large - span annular open - web cable truss structure . several projects are also presented
首先，在大量查阅国内外文献的基础上，本文回顾了张拉整体以及索穹顶结构的发展历史，阐述了大跨索桁结构在建筑和结构上的特点，介绍了几项典型的工程。 |
| 8. | The geometric nonlinear analysis of three types of large - span annular cable truss structures is put forward by using commercial fem program . their static properties in deferent load case are concluded , and some suggestions for actual projects are also presented . base on the prime realization of its static property , parameter analysis of its static property is done consisting of deferent number of truss , deferent height of truss , deferent scale of height of masts , deferent boundary condition and deferent magnitude of pre - stress in deferent load case
本文利用通用有限元软件ansys对大跨度环形空腹索桁结构体系中三种典型的结构(即内外圈都为圆形、外圈圆形内圈椭圆形、内外圈都为椭圆形的三种外形的结构)进行了几何非线性分析，总结出各自在不同荷载工况下的静力性能，并提出一些有实际工程意义的建议。 |
| 9. | Prestressed cable truss has some characters of transparency , safety , simplicity , dexterity , and beauty . due to these peculiarities there is a splendid prospect when the structure is used in the glass curtain . therefore , it is becoming warm and important problems to study its structural components and behaviors
预应力索桁支承体系具有通透、安全、灵活、工艺感强以及环保节能等诸多特点，决定了该体系在点式玻璃幕墙中具有广阔的应用前景，因此，对其受力性能进行研究，日益成为结构工程学科研究的重要方向和热点问题。 |
