SPAN WITH MULTI-SHROUD TRUSSES FROM STRUCTURAL GLASS COMPOSITES WITH ORTHOTROPIC SLAB OF ROADWAY

摘要

FIELD: machine building.;SUBSTANCE: invention relates to bridge construction and can be used in construction of span-span bridges from structural glass composites. Said span structure comprises multistabe main trusses with cross grid, all elements of which and cross links are made of composite materials, and bearing structure of bridge cloth. Span structure consists of mounting blocks comprising main trusses, combined in pairs by crosswise links, and steel orthotropic plate with cantilever overhangs, supported by transverse beams on main trusses and combined with them by two aligned along truss axes with lengthwise ribs with device of bolt joints by means of paired angle pads. Mounting units are installed on supports along transverse slope and connected to each other by means of device of bolt-jointed joints in gaps between blocks.;EFFECT: technical result is increased payload capacity of span structures, reduced material consumption and labour intensity of their manufacture and installation, increased durability and operational reliability of bridges using span structures from structural glass composites.;1 cl, 5 dwg