Lifting equipment for performance , broadcast and similar applications - specification for design and manufacture of aluminium and steel trusses and towers 演出广播和类似项目用提升设备.铝和钢桁架和塔状构架的设计和制造规范
Because of large span , the steel truss transfer member in a tall building will get a huge load effect with a vertical loading 带大跨度钢桁架转换层结构的建筑物，由于转换层的跨度大，在竖向荷载作用下，将会产生较大的荷载效应。
Furthermore , there are many factors on load effect of steel truss , especially temperature function and the constraints at truss end 同时，钢桁架的受力和变形的影响因素很多，特别是在施工阶段，温度作用和桁架端部支承约束条件的影响很大。
At the same time , the steel truss with cross diagonal web members , without vertical web member , is the best project to transfer a big span structure 同时，研究发现有交叉斜腹杆而无竖腹杆的钢桁架结构形式是实现大跨度、大柱网转换的优选方案。
Concerning the steel truss system that has been most common used in practice , the dissertation describes the material , conformation and development in particular 其次对于大跨度中常用的钢桁架结构体系，专门介绍了其形式、材料、构造和我国当前的发展。
The design and application of long span steel truss , grid frame and the roof structure have accelerated the development of hoisting and erection technology for more than twenty years 近二十余年来，大跨度钢桁架、网架等体系的屋盖结构设计和应用促进了起重吊装技术的成熟与发展。
The steel reinforced concrete frame - shearwall structure with a transfer steel truss located at a higher lever is complicated so that its seismic performance is not specific 带高位大跨度钢桁架转换层型钢混凝土框架?剪力墙结构是一种复杂体型建筑结构形式，结构受力机理不明确，设计难度大。
It is obvious that transfer stories are weak . however , the shearwall connected to steel truss transfer stories is good and the overall structure can satisfy seismic fortification requirements 揭示钢桁架转换层是结构的薄弱环节，与钢桁架相连竖向构件抗震性能良好，整体结构满足抗震要求。
3 . some suggestions for seismic tectonic measure of shear wall with concealed steel bar truss have been presented . and some advice for seismic design of this new shear wall has been put forward 3 .给出了内藏钢桁架混凝土组合剪力墙的抗震构造措施,提出了该新型剪力墙结构的抗震设计建议。
The twin - wall truss has been put into use in designing the wide - span steel roof truss in order to overcome the disadvantages caused by the lack of laterlly stiffness in the one - wall truss 在大跨度钢桁架设计中，为了克服实膜式桁架侧向刚度差带来的不利影响，当跨度较大时，宜采用格构式桁架。
