SU846680A1 - Roof - Google Patents

Description

(54) COATING

I

The invention relates to construction and can be used, for example, in buildings of warehouses and main buildings of a state district power station.

Coatings are known, including arches {1}

To produce such a coating, a large consumption of materials is required, as to ensure the strength and stability of the coating, it is necessary to develop the cross sections of the arches.

The closest technical solution to the proposed is a coating that includes an arch and a lantern 2 installed on it.

In this cover, a lantern mounted on the arch creates additional vertical and horizontal loads. The consumption of materials in the manufacture of this coating is somewhat less as a result of the use of arches made of cores and the connecting grid. The complexity of manufacturing the known device is increased. In addition, large loads applied to the middle part of the arch between the fixing points of the lamp cause large bending moments in the arch sections, require the development of arch cross sections and lead to a large consumption of material.

The purpose of the invention is to reduce the consumption of material and reduce the complexity of the manufacture of the coating.

This goal is achieved by the fact that the lantern is rigidly attached to the arch, and the middle part of the arch, located between the points of the bearing, is a lantern attached to the side parts of the arch and provided with a hook, with the middle part of the arch (can be fitted with a grille connecting the arch with the hook The drawing shows the coating, tO.

The covering includes arch 1, lantern 2, taper 3 and grid 4.

The coating is subject to a constant load-own weight of the coating and the weight of the suspension technology equipment, and tS also temporary loads - snow, wind and crane weight. These loads cause longitudinal forces and bending moments in arch 1. The middle part of the arch 1, due to the fact that it is pivotally attached to the side parts and is provided with a cork 3, works as a 20 double arch and does not transmit bending moments to the side parts. In turn, the side parts of the arch 1, rigidly connected to the lantern 2, work as a frame.

which bend loads from its own weight, snow and wind. As a result of the joint work of the side parts of the arch 1 and the lamp 2, bending moments of relatively small magnitude appear. Small bending moments also occur in the middle part of the arch 1, since it is loaded with a uniformly distributed constant load from its own weight and hanging equipment, and a crane load is applied at its ends. In addition, the middle part of the arch 1 is reinforced with rods of the lattice 4, which significantly increase its stability.

The presence of small bending moments in the elements of the coating makes it possible not to develop the cross sections of the arch 1 and, as a result, to reduce the material consumption.

In addition, this allows the arch 1 to be made not through, but solid, which entails a reduction in the labor intensity of manufacture.

Claims (2)

1. A covering, including an arch and a lantern supported on it, characterized in that, in order to reduce material consumption, the lantern is rigidly attached to the arch, and the middle part of the arch, located between the points of the arch, is hinged to the side portions of the arch and is equipped with delayed 2. A coating according to claim 1, characterized in that the middle part of the arch is provided with a card, connecting arch with stopper. Sources of information taken into account in the examination 1. Glued wood constructions in foreign and domestic construction. Overview. Gosstroy of the USSR, TsIPI for construction and architecture. M., 1975, p. 20, Fig. 20. 2. "Construction and architecture abroad, 1958, No. 1, p. S.