RU2668088C1 - Method for manufacturing a strut-framed plate from profiled sheeting - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to construction, in particular to a method for manufacturing a strut-framed plate from profiled sheeting. Method for manufacturing a strut-framed plate, consisting of a profiled sheeting with screwed pyramidal stops attached to it, through peaks of which a tie rod is passed and attached, comprises first laying the profiled sheeting in an inverted position. Then, three or more stops are attached to the profiled sheeting shelves, the stops are made in the form of tetrahedral rod pyramids with pipe segments on their tops, then the tie rod is passed through the pipes and attached, and a camber for the plate is set by a value equal to the deflection from the design loads.EFFECT: technical result is increased rigidity of the plate.2 cl, 2 dwg

Description

The invention relates to construction and can be used in building coatings. Most effectively, the invention can be used for the manufacture of truss plates covering from corrugated board with giving them a prestress.

A known method of manufacturing spreelgel lattice structures according to patent RU 2300610 C1, 06/10/2007, bull. No. 16.

This method can not be used for the manufacture of prestressed truss plates with the upper belt of corrugated board, backed up by a flexible tightening.

Closest to the invention is a method of manufacturing a coating plate according to patent RU 2316635 C1, 02/10/2008, Bull. No. 4, according to which sheet pyramidal stops are attached to the bottom of the corrugated board on the screws, through the tops of which a puff is passed and attached.

However, such a plate does not work well for load asymmetry and has increased deformability in flight.

The invention is aimed at reducing the deformability of truss plates, as well as improving the performance of the plate with asymmetric loading.

The result is achieved in that in the method of manufacturing a prestressed truss plate from corrugated board with pyramidal stops fixed to it on the screws, through the tops of which a puff is passed and attached, according to the invention, the corrugated board is first laid upside down, then three or more stops are attached to the lower shelves of the corrugated board, made in the form of tetrahedral rod pyramids with pipe segments at their vertices, after which a tightening is passed through them and fastened, after which the building hoist is set to the slab and a value equal to the deflection from the calculated loads. one

The manufacturing method is illustrated by drawings, where in FIG. 1 shows a coating plate with an installed tightening over the tops of rod pyramids; in FIG. 2 - design of an emphasis made in the form of a tetrahedral rod pyramid. The plate is collected in the following sequence. First, corrugated board 1 is laid on the floor in an inverted position. Then make stops (Fig. 2), made in the form of tetrahedral rod pyramids of tubular faces 2, welded to the corner transverse beams 3 (Fig. 2). A pipe segment 4 is attached to the top of the rod pyramid for welding, after which three or more rod stops (Fig. 2) are fixed with screws to the lower shelves of the corrugated board (Fig. 1). The assembly of the slab is completed by installation on the pipe lengths of the truss tie 5 (Fig. 1), then, by tensioning the slab, the building rise is set by an amount equal to the slope of the slab from the calculated loads, and then the slab is mounted in the design position.

The preliminary bending of the slab with a sprinkler puff 5 due to its shortening is specially created to reduce the deformability of the slab, since at standard loads on the slab its deflections will be minimal, and at rated loads it will reach its maximum, which is useful since the slab will have a minimum building height.

For asymmetric loading, for example, with snow loads, the plate will also work more reliably, since the spindle drag 5 in the span is fixed rigidly to the span tetrahedral stops (Fig. 2).

The manufacturing method for this solution does not require the manufacture of special indirect solutions and reduces the deformability of truss plates from corrugated board, reinforced in the span with a truss tightening.

The invention can most effectively be used for the manufacture of coating plates with spans up to 2 ÷ 9 meters. Especially effective is the application of the method for buildings with explosive production, where the slabs must have sufficient rigidity and minimal dead weight.

Claims (2)

1. A method of manufacturing a sprengel plate from corrugated board with pyramidal stops attached to it on self-tapping screws, through the tops of which a puff is passed and attached, characterized in that the corrugated board is first placed in an inverted position, then three or more stops made in the form are attached to the lower shelves of the corrugated board tetrahedral rod pyramids with pipe segments at their vertices, after which a puff is passed through and fastened. 2. The coating plate according to claim 1, characterized in that the tension of the tightening plate sets the building rise by an amount equal to the deflection of the plate from the calculated loads.

Images