FIELD: bridge engineering.
SUBSTANCE: invention relates to bridge construction and can be used in construction of multi-span steel-concrete superstructures of bridges with monolithic reinforced concrete slab by longitudinal slip. Method of erection of continuous steel and concrete span structure includes the following operations: assembly on coast stand of assembly of span metal blocks with length equal to two first spans, with required construction lift, concreting of reinforced concrete slab at section of section I, primary reduction of reinforced concrete slab on section of section I by lowering on jacks, secondary reduction of reinforced concrete slab on section of section I by means of jacking of the end of the first span with fixation by a trunnion, longitudinal overrunning of steel-concrete span section by method of conveyer-rear assembly of span metal part by length of one span, concreting of reinforced concrete plate on section II section with length equal to span, reduction of reinforced concrete slab of section II by lowering method on jacks, longitudinal sliding of sections I and II of steel-concrete span structure by means of conveyer-rear assembly of span metal part by length of the next section.
EFFECT: objective of invention is reduction of material consumption and labor intensity of manufacturing and installation, increase of durability and operational reliability of bridges with steel-concrete span structures.
1 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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