RU2317380C1 - Composite mansard roof - Google Patents

Abstract

FIELD: building structures, particularly roofs with plane sloping surfaces.

SUBSTANCE: composite mansard roof comprises composite panels including load-bearing frame made as cold-formed steel beams having thin-walled channel cross-sections of E-shaped profiles. The beams are provided with stiffening ribs transversal to beam walls. The beams are connected with each other through outer wall of rectangular and corner panels along perimeter thereof. Two grooves receiving rubber packing are created in upper panel parts and located from outer sides thereof. Lower panel parts have orifices. Heating layer is arranged between two steel sheets. Lower sheet is perforated and is rigidly connected with lower stiffening rib surface. Upper sheet is rigidly connected to upper beam flange and has polymeric coating. The panels are secured in longitudinal and transversal directions.

EFFECT: possibility to combine load-bearing and enveloping functions.

2 cl, 5 dwg

Description

The invention relates to the field of building structures, buildings and structures and can be used in the construction of attic roofs.

A known design of a folding volumetric block of the roof, containing rigid triangles, each of which is formed by a stable, rafter leg and a transverse beam, as well as the upper, middle and lower strapping. The harness is pivotally connected to the elements of a rigid triangle with the possibility of folding (RF Patent No. 1803510, IPC EV04/16, 1/343, publ. 23.03.93. Bull. No. 11).

The disadvantage of this design is the small element, considerable laboriousness, the need for a large number of additional materials for the device of the finished roof.

The closest technical solution to the claimed invention is the construction of the building enclosure, including prefabricated panels containing a supporting frame, profiled flooring with laid insulation and a roll of protective carpet, as well as strips on the side, ridge and cornice joints between the panels and fastening elements (RF Patent No. 2000400 , IPC E04B 7/16, 1/343, publ. 09/07/93. Bull. No. 33-36).

The disadvantages of this design are the large metal consumption, the complexity of installation at the construction site, the significant weight of the structure and, as a result, the considerable complexity of installation.

The problem to which the invention is directed is to combine the load-bearing and enclosing functions, reduce the complexity and simplify the installation of the structure, reduce the installation time, reduce the weight and metal consumption of the structure.

The essence of the invention lies in the fact that in the prefabricated roof of the attic type, comprising prefabricated panels containing a supporting frame, a floor with laid insulation and fastening elements, the supporting frame is made in the form of cold-rolled steel beams of a thin-walled E-shaped profile, connected to the outside by a wall to the perimeter at least two types of panels, rectangular and angular, with a stiffener installed perpendicular to the walls of the beams, along which two grooves are made on the outside in the upper part of the cross-section ia beams, with rubber gaskets and holes in the bottom. The insulation is placed between two galvanized steel sheets, the lower of which is made with holes for natural ventilation of the insulation and is rigidly connected to the lower plane of the stiffener, and the upper sheet is rigidly mounted on the upper shelf of the beam and is made with a polymer coating. The panels are interconnected around the perimeter by bolts installed in the holes of the beam. The joints of the panels are made with waterproofing and slats.

The invention is illustrated by the following drawings, in which Fig. 1 shows a prefabricated attic type roof, Fig. 2 shows a panel connection unit in a section A-A, Fig. 3 is a general view of a rectangular panel with a section, and Fig. 4 is a general angular view panels, figure 5 - possible roof designs.

The prefabricated roof of the attic type consists of two types of panels: a rectangular panel 1 and an angular panel 2 containing a supporting frame made in the form of steel cold-formed beams of a thin-walled channel section 3 connected by a wall 4 outward into a contour around the perimeter of a rectangular and angular panel, a stiffener 5, mounted rigidly perpendicular to the walls of the beams, along which two grooves 6 are made on the outside on the upper part of the cross section of the beam, with rubber gaskets 7 placed in them, for waterproofing the structures and holes 8 in the lower part of the beam for bolts 9. The insulation is placed between two galvanized steel sheets, the bottom 10 of which is made with holes 11 for natural ventilation of the insulation 12, and also a film layer for vapor barrier 13 is placed and is rigidly connected to the lower plane of the stiffener and the top sheet 14 is rigidly mounted on the top shelf 15 of the beam and is made with a polymer coating 16. The joints of the panels are additionally sealed 17 and covered with filaments 18, which are attached to the panels themselves, for example, using and screws.

On the inside, finishing is done with waterproof plasterboard sheets 19 and plaster 20.

In the case of a 4-pitched roof, the roof structure is constructed of two types of panels - angular, with a curvature of 36 °, obtained by dividing the semicircle by the number of bends of the roof, 180 / n and rectangular panels. For the construction of the simplest arch of a 4-pitched mansard roof, 5 corner panels and from 4 ... (even number) rectangular panels are needed.

By varying the number of rectangular panels, the attic width corresponding to the width of the building is selected, and the required room height is selected. Due to rubber gaskets, temperature deformations are perceived and waterproofing of the panel joints is carried out, the panels are expanded both in the longitudinal and transverse directions of the roof, connected by bolts.

The height of the channel for the bearing capacity and the thickness of the insulation are calculated separately based on specific conditions: the climatic region, the span to be covered, the height of the superstructure.

The manufacture of panels includes a rigid connection of steel beams 3 of the frame into the contour with the wall facing out, by welding, followed by rigid fastening of an additional stiffening rib 5 to the walls of the beam at a distance of 2/3 from the upper shelf. Bolt holes are made in the lower part of the wall, respectively, on the short and long side of the panel, for example, with a diameter of 10 ... 15 mm, and in the upper part, along the perimeter of the panel, by pressing in two parallel grooves, rigidly fastening the lower steel sheet to the lower plane of the stiffener E-shaped profile, with the device in it a certain number of holes 11, for example, with a diameter of 10 ... 15 mm and laying on it a vapor barrier layer 13, in the form of a film and insulation 12. The upper steel sheet 14 is attached to the upper shelves of the E-beam the profile is rigid, followed by applying a polymer coating 16 and installing rubber gaskets 7. Separate panels of 2 types of a complete factory readiness structure are delivered to the site for the subsequent assembly of the roof of the attic floor.

The roof of the attic type is assembled by a team of 4-5 people with the help of attic devices on a previously prepared surface of the installation horizon. Installation of the frame begins with the corner of the building. First, corner panels 2 are mounted and secured, using anchors, to the supporting walls of the building. Then, supporting scaffolds are installed, from which the upper panels of the attic type prefabricated roof are mounted. After installing the corner panels and supporting scaffolds, the roof is built up with bolting of rectangular panels 1, the number of which depends on the width of the building and the required height. Based on the supporting scaffolds, subsequent panels are fixed to the first row of the frame with bolts around the entire perimeter of the panel. After installing the entire skeleton of the attic in places where ventilation ducts are designed according to the project, the corresponding holes are cut with the subsequent monolithic joints and waterproofing. After waterproofing the joints, the joints of the panels 17 are sealed and the slats 18 are installed, then the windows are installed in the pre-prepared panel openings, the necessary engineering networks are laid and the interior is finished with waterproof giprock 19 and stucco 20.

Thanks to such a roof design, high technological effectiveness, ease of installation are ensured, roof installation time is significantly reduced, welding work during installation is excluded, the number of types of panels is minimized.

The advantages of this design are the high factory readiness of quick-assembled panels, the combination of load-bearing and enclosing functions, the ease and simplicity of installing a roof of any shape, the possibility of a hidden installation of utilities, the availability of repair and dismantling of individual roof panels.

Claims (2)

1. Prefabricated roof attic type, comprising prefabricated panels containing a supporting frame, a floor with laid insulation and fastening elements, characterized in that the supporting frame is made in the form of steel cold-formed beams of a thin-walled channel section, connected by a wall to the outside to the contour around the perimeter of the rectangular and corner panels , with a stiffener installed perpendicular to the walls of the beams, along which two grooves are made on the outside on the upper side of the cross section of the beam, with rubber props placed in them with adducts and holes in the lower part, the insulation is placed between two galvanized steel sheets, the lower of which is made with holes and rigidly connected to the lower plane of the stiffener, and the upper sheet is rigidly mounted on the upper shelf of the beam and made with a polymer coating, the panels are connected bolted to each other, both in the longitudinal and in the transverse directions. 2. The roof according to claim 1, characterized in that the supporting frame of the corner panel is made of two rectilinear beams and two beams made at an angle corresponding to the magnitude of the semicircle divided by the number of bends of the roof.

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