| 摘要 |
A space truss comprises two horizontally extending and vertically spaced lattices, an upper one (10) which is composed of two intersecting groups of mutually parallel steel T-bars (13, 14) forming nodes (18), and a lower one (11) which is composed of two intersecting groups of mutually parallel steel flat bars (19, 20) standing on edge and forming nodes (23). The two lattices are united by means of a multiplicity of trough-shaped oblique struts (12), the respective ends of which by means of double bolt connections are secured to the nodes in the respective lattices. |
