FIELD: construction.
SUBSTANCE: invention relates to the field of bridging devices, and more specifically to the guide beams of dismountable bridges superstructure. Middle section of guide beam is made in the form of hollow beam with rectangular cross-section and detachable intersection connections. Section is made with high-strength rigid composite material, for example, made from carbon-fiber plastic, and intersectional connection is carried out by means of hollow insert with rectangular section, made also from composite material based on carbon-fiber plastic. Insert is tightly installed in hollow part of one section transom and is fixed by bolt joints and quick-detachable connections to vertical walls of beam through bushings. Quick-detachable connection of adjacent sections is performed by means of closing of supports of vertical walls of beam and insert by means of pins. Two power tie-rods made of light high-strength metal, for example, titanium, are installed on lower bolt joints of two adjacent sections of guide beam, and each of power tie-rods by the other end is symmetrically attached to adjacent section of beam through the insert.
EFFECT: design of guide beams of dismountable bridges superstructure is proposed.
1 cl, 9 dwg
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|---|---|---|---|
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| FOLDING BRIDGE UNIT | 2020 |
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| SPAN STRUCTURE | 2016 |
|
RU2650980C2 |
