SU916682A1 - Building - Google Patents

Description

The invention relates to the construction and is intended for use in industrial and civil buildings, having a span of 30 to 54 m.

The need for wider use of large-span buildings is due to the growing power of technological equipment, the project “industrial buildings, taking into account the wide maneuverability of the production facilities and the modernization of technological processes, the increasing need for building ground transport garages and hangars of modern civil aircraft fleets. Multi-span buildings in many cases turn out to be the most acceptable both for industrial and civilian objects. Three-span buildings, which have an average span greater than the edge of them, are becoming quite widespread.

It is known for single-storey industrial or civil buildings with spans from 18 to 36 m the implementation of frames containing roof trusses [1].

2

The disadvantages of such a technical solution with reinforced concrete or metal trusses are high

5 consumption of metal, much of which is spent directly on the trusses themselves, and the high labor intensity of manufacturing long-span truss.

The closest to the proposed is a building that includes supports, installed in rows along longitudinal axes, supporting structures supporting them, placed along longitudinal axes, and supporting structures in the form of hinged to console structures, between which are hingedly connected to them. central elements, suspension,

H fixed one ends to the supports, and the other - to the console elements, and guy rods attached to the ends of the console elements [2].

The main disadvantage of this building

5 is the high labor intensity of its manufacture.

The purpose of the invention is to simplify manufacturing.

This goal is achieved by

What is in the building that includes the supports

916682

four

mounted under the longitudinal axis of the axles, supporting structures under the trusses, placed along the longitudinal axes, and the trusses. in the form of cantilever elements hinged to the rafter structures, between which central elements are hingedly connected to them, hangers fixed by one ends to the supports, and 'others - to cantilever elements,

’And delays attached to the ends of cantilevered elements, cantilevered elements are made in the form of precast concrete panels oriented with the long side along transverse axes, and the suspensions are made in the form of paired elements diverging in plan at an angle to the supports.

The building can be equipped with additional truss structures in the form of precast concrete panels located between the cantilever elements and the central elements, and oriented with the long sides along the transverse axes and fixed to the suspension pendants.

In addition, in order to reduce material consumption, precast concrete panels can be made convex in cross section.

FIG. 1 shows a schematic representation of the proposed building, a transverse section; in fig. 2 - the same in terms of (at the level of coverage).

The building includes supports 1, on which are installed subrafter ί constructions 2, basic 3 and extra 4 trusses, suspensions 5, delays 6 and central elements 7 of the coating.

Rafter structures 3 and 4 are made in the form of convex ribbed reinforced concrete panels and include longitudinal, end and intermediate transverse ribs. One short side they are hinged in subrafter designs 2, and the other by means of suspensions 5 attached to supports 1. The main truss structures 3 differ from the additional 4 by the presence of a cutout for the support and embedded parts. Suspensions 5 are symmetrically attached to the supports 1. The supports 1 are made of composite height with separate, interconnected pivotally at the level of the coating elements. Ottyazhki 6. Combine the functions of enclosing structures and are made in the form of prefabricated, installed vertically wall panels.

The central elements 7 are typical prefabricated reinforced concrete covering panels. Elements 7 of the middle part of the coating under the action of constant and temporary loads work on the number 10

15

20

25

thirty

35

40

45

50

55

bend. Efforts from their support reactions cause asymmetrical loading of the upper part. Support 1, but. due to the presence of a hinge mate in the supports 1, the transmitted forces from the suspensions to the supports are balanced and the bending moment does not occur in the supports in the place of their conjugation with the coating.

The trusses 3 and 4 work in compression with bending, and the efforts of the support reactions of the suspensions cause a bending moment that is opposite in sign to the bending moment from constant and temporary uniformly distributed loads. But since the curvature of truss structures is small, the magnitude of bending moments from suspension reactions in all sections of truss structures is less than the magnitude of bending moments from a uniformly distributed load. Therefore, loss of stability of truss structures 3 and 4 is possible only downwards.

Suspensions 5 and delays 6 experience tensile stress. The lateral horizontal forces from the action of bridge cranes and wind loads are perceived mainly by the supports 1, since their rigidity is significantly higher than the rigidity of the braces 6.

The main advantage of the proposed building compared to the known. It is easy to manufacture with low steel consumption. Ease of manufacture and low consumption of steel are mainly explained by the reduction in the number of mounting elements in the coating.

Since the trusses, made in the form of reinforced concrete panels in the building, work in compression with twisted, it becomes possible to reduce the magnitude of the bending moment, and hence the material savings due to the application of force with eccentricity. In the exemplary embodiment, this feature is realized by changing the height of the cross sections of the panels. In addition, the compressive force increases the crack resistance of truss structures.

With the footing of 6 m being the most suitable for a building, the subrafter structures are made in the form of prefabricated ferroconcrete non-made beams, the fire resistance of a building in which the poles, subrafter and rafter structures are made of reinforced concrete, is higher than that of the known, are above the level of coverage, where they are practically inaccessible to the action of fire.

For the implementation of the middle elements of the 65 coating it is acceptable to practically \ 916682

combat technical solution covering medium-sized spans. Therefore, in the middle part of the building, Mu is relatively easy to accomplish the implementation of a light emitting lamp. Due to the absence in the building of interfarm space, lighting and ventilation of the building are improved, heating costs are reduced,

Buildings in which a solution can be implemented have a sufficiently high architectural expressiveness, a variety of architectural forms is possible, therefore from an aesthetic point of view the solution is also acceptable for widespread use.

Claims (3)

Claim 1. The building, including the supports installed in rows along the longitudinal axes, subrafter structures supported on them, placed along the longitudinal axes, trusses in the form of cantilever elements fixed on subrafter structures, between which are mounted centrally suspended elements fixed to them at one end on supports, and others on console elements, and fasteners attached to the ends of the cantilever elements, which are thinned by the fact that, in order to simplify manufacture, the cantilever elements are made in the form of prefabricated concrete panels oriented with the long side along the transverse axes, and the suspensions are made in the form pair of elements diverging into the plane at an angle to the supports. .η 2. Building on π. 1, I distinguish it by the fact that it is equipped with additional truss structures in the form of precast reinforced concrete panels located between console elements and central elements, oriented long sides along transverse axes and fixed on supports by means of suspensions. 3. Building on PP. 1 and 2, that is, in order to 20 reduce the consumption of material, precast concrete panels are made convex in the cross-section.