Timber roof structures supported by main frames , rafters and trusses .
木架结构是以主架、椽架和桁架支撑的。
Installation of trusses onto the upper ring of the tower .
将桁架固定到支撑塔上。
This paper is one of the components of the research work ( expert system of structural layout optimization for trusses frames ) supported by the national scientific fund .
工作是国家自然科学基金项目"杆系结构优化布局专家系统开发研究"的组成部分。
The analysis of membrane structure covering the central part of roof structure has been carried out effectively by using a simplified model proposed in this paper . Finally , elastoplastic analysis has been performed for the connection joints at the end of bottom chord of trusses in main building .
The wu method presented here provides a new way of thinking to solve other assur groups or barravo trusses .
吴方法在这一问题上应用,为求解其他机构学问题提供了新思路。
Dome trusses are mounted onto the supporting ring .
圆顶桁架对接到支承环上。
Trusses , girders , and rolled beams shall be securely anchored to the substructure .
折架、大梁与辊压梁应牢固地栓接至下部结构。
In addition , the astronauts installed a backup ammonia jumper cable between the port 4 and 5 trusses of the station and transferred a power and data grapple fixture from the shuttle to the station .