SU1133327A1 - Steel/ferroconcrete bridge span structure - Google Patents

Abstract

STEEL-CONCRETE BRIDGE STRUCTURE OF THE BRIDGE, containing its metal main beams with the upper parts themselves of paired angles, fixed vertical shelves on the walls of the main beams, reinforced concrete slab of the roadway and connecting elements, made in the form of vertically fortified plates in the slab with holes, connected to the upper on the main beams themselves with the aid of bolts, characterized in that, in order to reduce the labor intensity of installation, each main beam in the locations of the connecting elements is made in Each connecting element is wound through the gap between the paired angles into the corresponding cutout in the wall of the main beam, and in the vertical shelves of the angles there are holes for bolts, coaxial holes in the corresponding connecting element. about s

Description

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The invention relates to bridge construction and can be used in the construction and renovation of steel concrete bridge bridges.

The steel bridge span is known, containing metal I-beam main beams, a reinforced concrete slab of the roadway and connecting elements made in the form of high-strength studs passed vertically through coaxial holes in the upper along the main beams and slab with compression of the last 1.

The disadvantage of this span structure is the increased complexity of the installation due to the need to install and tighten a large number of high-strength studs, inject holes in the slab, and place leveling pads on the top row. The disadvantages of this design also include the incomplete inclusion of the slab in the joint operation with the main beams due to some flexibility of the connections.

The closest to the invention to the technical essence and the achieved result is the construction of an even-span bridge span containing metal main beams with the upper corners of the paired corners fixed by vertical shelves on the walls of the main beams, reinforced concrete slab of the roadway and connecting elements made in the form of vertically reinforced plate plates with holes, connected to the upper main beams themselves by means of bolts. In the known span, the fastening of the connecting inset elements on the upper seams of the main beams is carried out with the help of the receiving corners fastened on the bolts by horizontal shelves to the upper one on the corresponding main beam, and by vertical shelves to the corresponding connecting element 2.

A disadvantage of the known flying structure is the increased complexity of the installation, due to the need to use fastening brackets fixed to the main beams with the help of bolts for fixing the connecting elements.

The purpose of the invention is to reduce the labor intensity of installation.

This goal is achieved by the fact that in the steel concrete superstructure containing metal main beams with the upper ones themselves from twin corners,

fixed by vertical shelves on the walls of the main beams, a reinforced concrete slab of the carriageway and connecting elements made in the form of vertically fixed plates in the plate with holes connected to the upper main beams by means of oolts, each main beam is made in the places of the connecting elements the upper part of the wall with a cut-out, and each connecting element is wound through the gap between the corners of the corners into the corresponding cut-out in the wall of the main beam, and in the vertical shelves the bolt holes, coaxial holes. m in the corresponding connecting element are made. FIG. 1 shows a fragment of a span along the facade of the bridge; in fig. 2 - the same section; in fig. 3 - wall of the main beam with cutouts for connecting elements; in fig. 4 - prefabricated blocks of reinforced concrete slab of the carriageway with terrific connecting elements.

The steel concrete span of the bridge contains metal main beams 1 with the upper parts of the twin corners 2 themselves, fixed with vertical shelves on the walls of the 3 main beams, the national team of

0 blocks reinforced concrete slab 4 of the carriageway and connecting elements 5, made in the form of vertically fortified 4 plates in the slab with holes, connected to the upper main beams by means of bolts 6.

Each main beam 1 at the locations of the connecting elements 5 is made in the upper part of the wall 3 with a notch 7, and each connecting element 5 is wound through the gap between the paired corners 2 into the corresponding notch 7 in the wall of the main beam, and in the vertical shelves of the corners 2 there are holes for bolts 6 coaxially to the holes in the corresponding connecting element 5.

The application of the proposed construction allows to significantly simplify the combination of a reinforced concrete slab with metal main beams and reduce the laboriousness of installation of steel concrete bridge bridges.

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Claims (1)

STEEL AND CONCRETE SPAN STRUCTURE OF A BRIDGE containing metal main beams with upper belts from paired corners fixed by vertical shelves on the walls of the main beams, a reinforced concrete slab of the carriageway and connecting elements made in the form of plates vertically fastened in the plate with holes connected to the upper belts of the main beams using bolts, characterized in that, in order to reduce the complexity of installation, each main beam at the locations of the connecting elements is made in the upper part of the wall with a cutout, and each connecting element is brought through the gap between the paired corners into the corresponding cutout in the wall of the main beam, and in the vertical shelves of the corners holes are made for bolts that are aligned with the holes in the corresponding connecting element. FIG. 1 -------------- ₇ ---------------- - - - , I - - _ - - - - G3 GO O0 ye