SU1213149A1 - Joint for ferroconcrete slabs - Google Patents

Description

The invention relates to the construction and can be used, in particular, to connect reinforced concrete slabs of civil and industrial buildings, bridge spans and hydraulic structures.

The aim of the invention is to reduce the complexity of the installation and the expansion of the scope.

FIG. 1 shows a joint, a vertical section, with mutual displacement and rotation of the joined plates; in fig. 2 - lower embedded parts and plate overlay with vertical edges, top view; in fig. 3 - top embedded parts connected by helically curved connecting elements, top view.

The joint structure of reinforced concrete slabs contains end sections of slabs 1 and 2 with cutouts in concrete, separated by seam 3, lower longitudinal reinforcing bars 4, connected by welding with embedded plates 5 projecting to a depth of cutouts, and upper longitudinal reinforcing bars 6, connected by welding to mortgage items 7, which can be made in the form of, for example, squares or plates.

The connection between the lower embedded plates 5 is carried out by means of a plate lining 8 welded to them by frontal and flanking seams 9 and 10. The plate lining 8 may have a vertical

five

0

five

and in the direction of the seam between the plates.

Embedded parts 7 are connected to the ends of cores bent in the form of loops 12 by welds 13. Curved bars 12 may have one or several turns of reinforcement, depending on the diameter of the loop and the bar and the concrete grouting grade.

The space of the joint, bounded below by the fixing plates 5 and the lamellar overlay 8, and from the sides by notches in the concrete of the end sections of the plates 1 and 2, is monolithic by concrete 14.

The butt joint is performed as follows.

After mounting plates 1 and 2 with a seam 3, a flexible lamellar overlay 8 is placed on the plates 5. If the plates 5 are located at different heights and angles to each other, then the overlay 8 is first welded to the upper insert plate 5 with the seams 9 and 10, and then bend her to the plate below, while simultaneously lifting the last special mount.

After tacking the overlay 8 to the second bottom plate, they are finally joined by welds 9 and 10. The laying 8 is welded parallel to the end face of the abutting plates of the rib 11 and the fixings 7 are connected with connecting rods 12. After mounting all the connecting elements, the notches in the end sections the slabs are filled with concrete.

10 in

Phage.g

Claims (2)

1. JOINT OF REINFORCED CONCRETE BOARDS, including embedded parts located in end cutouts and rigidly connected to the upper and lower reinforcement, connecting elements and joint monolithic concrete, characterized in that, in order to reduce the complexity of installation and expand the scope, embedded parts connected to lower reinforcement, made in the form of plates protruding from the concrete body to the depth of cuts, and connecting elements in the form of loops formed from curved rods attached at their ends to embedded parts, with single with the upper reinforcement, while the joint is equipped with a plate overlay that combines embedded parts connected to the lower reinforcement. 2. The junction in π. 1, characterized in that the plate overlay is made with steel ribs located monopolizing the joint. turning the zone of FIG. SU. ,, 1213149>