| 摘要 |
A lattice truss of metal profiles in which the connections in the joints where the rafter head (1) or the rafter foot (2) is connected with two lattice bars (3) consist of a single bolt connection (30). As opposed to the known lattice trusses, only normal forces, i.e. tension or pressure in the lattice bars, occur in the present lattice truss so that in the calculation of the forces of load no allowance need be had for addition of moment loads. |
