SU1229292A1 - Arrangement for reinforcing beam structures - Google Patents

Description

The invention relates to the construction, in particular to the strengthening of the building beam structures of buildings and structures,

The purpose of the invention is to increase the bearing capacity of the structure and reduce the complexity of installation.

This goal is achieved by the fact that in the device for reinforcement of beam structures, including the reinforcement element provided below the lower one, is connected to the beam structure through struts and supports, to which the reinforcement element is connected with the possibility of attraction by connecting bolts, each; the support is made in the form of a beam construction of a detachable grip that grips the shelf, which is rigidly connected to the supporting ribs with which it is supported on the flange of the beam.

Figure 1 shows a device for reinforcing beam structures, a general view; figure 2 - node I in figure 1; on fig.Z - section aa in figure 2; on

ten

elements 4, each of which is equipped with support ribs 5 and fastening bolts 6.

The device include, in the work as follows.

The connecting elements 4, with the ends of the supporting ribs 5, are installed on the inner surface of the flange of the usb of its beam 1, and between the element 2 and the connecting elements 4 are cut, the length of the calculated gap. At the end of the bolts 7, until the gap is completely eliminated, they create stresses in the reinforcement element, at the same time unloading the reinforced e-beam.

The device allows to increase the carrying capacity of the bent elements, the stresses in which from the actual loads exceed the permissible ones, since at the moment of reinforcement there is no weakening of the cross section of the expanding beam by drilling the holes for fastening bolts or its warming up during closing.

Fig.4 - section BB in Fig.2; in fig. repli of the element of the reinforced element with the attachment AND in figure 1; figure 6 - section bb In figure 5.

The device consists of a reinforced beam 1, reinforcement element 2 of a rolling profile with a stop element 3 fixed on it 30, with a welding connection.

The device makes it possible to reduce the installation time of the reinforced element by half by eliminating welding operations, as well as work on anchoring the backplates.

elements 4, each of which is equipped with support ribs 5 and fastening bolts 6.

The device include, in the work as follows.

The connecting elements 4, with the ends of the supporting ribs 5, place the usable beam 1 on the inner surface of the flange, and between the reinforcement element 2 and the connecting elements 4, cut the calculated clearance. Then the bolts 7, up to the complete elimination of the gap, create stresses in the reinforcement element, simultaneously unloading the reinforced beam.

The device allows to increase the carrying capacity of the bent elements, the stresses in which from the actual loads exceed the permissible ones, since at the moment of reinforcement the section of the augmented beam does not weaken by drilling holes for the fixing bolts or by warming it up

repl. of the amplified element with

repl. of the amplified element with

change of welding.

The device makes it possible to reduce the installation time of the reinforced element by half by eliminating welding operations, as well as work on anchoring the backplates.

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FIG. 5 L

Editor G. Gerber

Compiled by A.Siptits

Tehred I. Veres Proofreader G, Reshetnik

. Order 2424/25 Circulation 728 Subscription of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (1)

DEVICE FOR STRENGTHENING BEAM CONSTRUCTIONS, including a reinforcing element suspended under the lower belt, connected to the beam structure through spacers and supports, to which the reinforcing element is attached with the possibility of attraction by connecting bolts, characterized in that, in order to increase the structural bearing capacity and reduce labor intensity mounting, each support is made in the form of a detachable gripper wrapping around the shelf of the beam structure, rigidly connected to the supporting ribs, by which the gripper is supported on the beam shelf.