SPAN STRUCTURE OF THE INCREASED LOAD CAPACITY FROM CARBON PLASTIC OF UNIVERSAL BRIDGE DESIGNS

摘要

The utility model (hereinafter - PM) relates to the field of bridge construction and can be used to construct temporary collapsible beam girder bridges from spans with open lower-back riding under single-track traffic. The PM technical task is to develop such a span structure with increased carrying capacity from UMK elements, which will provide a reduction in the mass of PS and higher corrosion resistance, as well as a smaller area of exposure to wind load, fewer components, of which the span is pulled away with the ride downhill open. This technical problem is solved due to the fact that the span of increased carrying capacity of carbon fiber UMK consists of main and transverse beams, elements of the carriageway and horizontal ties, characterized in that the main beams of the T-section are composed along the length from a smaller number of sections having the same length; in the vertical walls of the main beams between the vertical and horizontal stiffeners, through oval cuts are arranged; the carriageway consists of transverse T-beams and flat longitudinal blocks placed on them with internal and external wheel breaks, as well as with anti-skid bands; horizontal ties from the corners, providing longitudinal and transverse stiffness of the span, are placed between adjacent transverse beams and bolted to the shelves of the lower zones of these beams; pipes for supporting the ramps on the span are placed between the vertical stiffeners on the outside of the support beams of the end sections and are rigidly connected to the ribs; all load-bearing elements, as well as span connections, are made of carbon fiber; the connections of the elements are made with pins and bolts.