SU1716056A1 - Device for reinforcing ferroconcrete plate - Google Patents

Abstract

The invention relates to the construction and can be used for flat reinforced concrete floors of buildings, including non-beam, if necessary, to strengthen them without interrupting production. The aim of the invention is to increase the bearing capacity of a reinforced concrete slab while supporting it along a contour. The device contains rigid elements located along the contour and in the span with the formation of plate sections. The thickness of the slab and the smaller span of the slab section, as well as smaller and larger span of the slab portions, are in a certain ratio. 3 il.

Description

The invention relates to Construction and can be used for flat reinforced concrete floors of buildings, including non-beam, if necessary, to strengthen them without interrupting production.

The aim of the invention is to increase the bearing capacity of a reinforced concrete slab while supporting it along a contour.

Figure 1 shows a reinforced reinforced slab, plan; figure 2 is a section A - And figure 1; on fig.Z - section B - B in figure 1.

A device for reinforcing a flat reinforced concrete slab 1 supported on pillars 2 and walls 3 comprises a closed rigid element 4 arranged along a contour 4 of an additional top concrete element 5 and a lower base concrete 6 connected by clamps 7 located in the holes of the plate 1. B span plate 1

rigid elements 4 are installed with the formation of individual sections of the plate 1. Clamps 7 are connected by longitudinal reinforcing bars 8 and are monolithic with beam elements 4 and 5.

The reinforcement of the slab is effective with the formation of sections of slabs with ratios

(5 / H 0.02; 1 li / fe 0.5,

where b is the plate thickness;

It is the smaller span of the plate section;

b - a larger span of the plate.

The reinforcement of a flat reinforced concrete slab is performed as follows.

In the reinforced slab 1, through holes are pierced to pass the clamps 7. The pitch of the through holes corresponds to the pitch of the clamps 7. To fix the position of the clamps 7, longitudinal reinforcing bars 8 are attached (welded) to them through the through-holes in the sub-base &

About Os

Concrete mix, forming the bottom-6 and top 5 beam elements. The reinforcement of plate 1 along the contour is performed similarly. It is also possible to perform a contour element outside the dimensions of the slab, in the wall thickness. A double layer of concrete (top and bottom) provides a reliable connection of reinforcement concrete with slab 1. Strengthening a flat reinforced concrete slab with rigid elements along the contour prevents it from moving horizontally, as a result of which there is a thrust that increases the load-bearing capacity of the slab.

Claims (1)

The formula was invented and the Device for reinforcing a reinforced concrete slab, including a reinforced reinforcement beam element adjacent to h 0 five to the slab from below, and the clamps of this beam are reinforced, monolithic in the holes of the slab, characterized in that. in order to increase the carrying capacity of the reinforced concrete slab while supporting it along the contour, it is provided with an additional reinforcement beam element placed coaxially with the core, and the clamps passed through the holes in the slab are mounted and embedded in the additional beam element, with the reinforcement beam elements located along the contour of the plate and in the spans with the formation of plate sections with ratios (5/11 2: 0.02; 1 2: h / l2 2: 0.5, where 6 is the plate thickness; is the smaller span of the plate section; h is the larger span of the plate section x lz FIG.