RU2287644C1 - Frameless two-layered arched building structure of thin cold-formed profiled members - Google Patents

Abstract

FIELD: building, particularly arched structures, vaulted structures and folded structures.

SUBSTANCE: building structure comprises cold-formed profiled members produced of thin roll and connected with each other by folded lock joint forming so that the first lower layer is created. Building structure also has the second upper layer of thin profiled members connected with the first layer through perforated spans fastened to projected folds of lower layer by means of tap-bolts and to upper layer by means of sheet cleats. The first cleat ends are fastened in spans, other ones are secured in each third profile of upper sheet and are built in folded lock joint. Both layers are aligned with foundation trough sheet covering plates by means of bolts. The covering plates are installed at different levels with the use of additional thin profiled member having 500 mm length. The levels are spaced 150-200 mm one from another.

EFFECT: increased load-bearing capacity.

5 cl, 9 dwg

Description

The invention relates to the field of construction, namely to the construction of cold-rolled thin-sheet profiles, and can be used in the construction of frameless arched buildings.

A known design of the arch vault, including lattice arches, on which the fence panels are laid (utility model RU No. 37742, E 04 C 2/32, E 04 B 7/04, 2004).

The disadvantages of this technical solution are busyness, significant consumption of materials and the complexity of construction and installation works.

A known design of a polygonal arch vault, including cold-formed thin-sheet unified elements - folds (ed. Certificate of the USSR No. 1446250, E 04 B 7/08, 1988).

The disadvantages of this technical solution are the significant complexity of factory manufacturing and construction works.

The closest technical solution to the claimed one is a frameless arch building of the MIC system, including one layer of cold-formed profiles formed on a building site from a sheet of roll and joined together by folding a folding lock (US patent No. 6722087, class E 04 B 1/32, 2004 .).

The disadvantages of this technical solution are the limited bearing capacity and span of the structure, a significant increase in the cost and complexity of construction and installation works for the erection of warm buildings.

The new technical solution is aimed at creating a frameless two-layer arched warm building with increased bearing capacity, increasing the span of the structure while reducing the cost and laboriousness of construction and installation works.

The essence of the invention lies in the fact that the design of a frameless arch building, including cold-formed profiles formed on a construction site from a sheet of roll and joined together by rolling a seam lock, is equipped with a second layer of sheet profiles combined with the first layer through perforated runs set in step 1, 2 ÷ 1.8 m and fixed to the protruding folds of the lower layer using self-tapping bolts, and to the upper layer using sheet clamps installed in steps of 1.2 1.8 m along the length of the arch and fixed at one end in the girders and the other in each third profile of the upper layer by rolling into a rebate lock, in addition, both layers are connected to the foundation with bolts through sheet plates installed in height at different levels with a difference of 150 ÷ 200 mm using an additional thin-sheet profile 500 mm long.

The invention is illustrated by drawings, which depict on:

figure 1 is a section of an arched building;

figure 2 is a fragment of the plan of the arched building;

figure 3 is a fragment of the facade of the arched building;

figure 4 - node 1 of figure 1;

figure 5 is a section aa of figure 4;

6 - node 2 of figure 1;

Fig.7 is a section bB of Fig.6;

Fig.8 is a section bb In Fig.6;

Fig.9 is a section GG of Fig.6.

The frameless arch building consists of the lower 1 and upper 2 layers of cold-formed profiles formed on a construction site from a sheet of roll, joined together horizontally into a vault by folding seam lock 3, joined together in height using perforated runs 4, set in steps 1.2 -1.8 m, fixed to the protruding folds of the lower layer using self-tapping bolts 5, and to the upper layer using sheet clamps 6, fixed at one end to the girders, and the other in every third upper profile layer, rolling into a rebate lock, laying between runs of insulation plates 7, in addition, both layers are connected to the foundation with bolts 8 through sheet plates 9 installed in height at different levels with a difference of 150 ÷ 200 mm using an additional thin-sheet profile 10 500 mm long.

The combination of two layers of cold-formed profiles between them in height using perforated runs, laying between the runs of insulation plates, allows you to get a rigid spatial three-layer arch structure from thin-sheet elements combining simultaneously bearing and enclosing functions, capable of absorbing significant external loads, including one-sided .

Fixing the joining runs to the protruding folds of the lower layer using self-tapping bolts, and to the upper layer using sheet clamps, rolling the upper layer into the fold lock, allows you to reliably enable both layers of cold-formed profiles to work, creating a frameless arched warm building with increased bearing capacity, increased span while reducing the cost and complexity of construction and installation works.

In addition, the installation of sheet plates at different levels with a difference of 150 ÷ 200 mm in height, in the support unit for the foundation, allows you to combine both layers of thin-sheet profiles with bolts to reliably transfer vertical and horizontal supporting forces to the foundation, an additional thin-sheet profile with a length of 500 mm allows you to perceive edge moments in the arch.

The manufacture and installation of a frameless arch building is carried out in the following sequence.

The panels of the arch building are made in two stages: first they form straight thin-sheeted cold-formed trough-like elements, cut them to length, and then on the bending installation they receive the project’s cross-sectional shape of the building with the simultaneous formation of transverse corrugations on a wide shelf and adjacent sections of the panel walls.

Installation is carried out by arched blocks, enlarged on the ground, consisting of several panels. The enlargement of the panels is carried out in a horizontal position. The combination of panels is carried out using a universal installation for folding joints, working in various spatial positions and also used for installation.

The installation of enlarged mounting blocks in the design position is carried out using special traverses, the design and length of which depends on the span of the mounted block. After installing two adjacent enlarged mounting blocks of arched panels in the design position and fastening them to the foundation, they are interconnected by rolling a seam lock. On the mounted first layer of arched panels, perforated runs are installed and fastened with self-tapping bolts, to which sheet clamps are mounted on bolts. Between the runs, insulating plates are laid, and then the top layer of arched panels is mounted, which are fixed with sheet clamps, rolled into the fold lock of the top layer.

The proposed technical solution is justified by full-scale experimental tests of fragments of two-layer panels and a fragment of an arch building with a span of 30 m.

Claims (5)

1. Frameless arch building, comprising a layer of cold-rolled thin-sheet profiles formed on a construction site of rolled metal and interconnected by a folding seam lock, characterized in that it is provided with a second layer of thin-sheet profiles located on top, identical to the profiles of the first layer, and combined with the latter through perforated runs installed between the layers, fixed with self-tapping bolts to the flanges of the first layer in contact with the girders, and to the upper layer with strength sheet clamps mounted in the upper profile crimping rebated lock, wherein both layers are conjugate to the foundation by means of bolts through the sheet lining installed at different levels with a difference in height and are reinforced in the core zone additional thin-sheet profile. 2. The building according to claim 1, characterized in that the girders are installed in increments of 1.2-1.8 m. 3. The building according to claim 1 or 2, characterized in that the sheet clasps are installed in every third profile. 4. The building according to claim 1, characterized in that the difference in height of the sheet overlays is 150-200 mm 5. The building according to claim 1, characterized in that the length of the additional thin-sheet profile is 500 mm

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