| 摘要 |
building structures, particularly, structures of ceilings of buildings and structures, separately standing carrying systems of special applications, for instance, crossbars of rigid crosspieces of electrified railways. SUBSTANCE: prestressed space trussed girder includes roof beam, posts of space strut frame with guides at its ends into which braces are freely passed and secured to ends of roof beams. Posts of space strut frame are made in form of hollow rods and end pieces are telescopic end pieces, with slots. EFFECT: higher rigidity and stability under action of external dynamic pulses and, as consequence, reduced material consumption. 4 dwg |
