SU1043511A1 - Specimen for investigating thin-walled structure complex stressed states - Google Patents

Abstract

SAMPLE FOR RESEARCH; WANIA OF THE ADDICTIVE-STRESS CONDITION OF THIN-WALLED KC "CTi RU.KTSII, mainly building, including a channel profile body, cross-links between the butt profiles I; brackets with hinges, with the fact that, with a view. expansion of functionality, the body is made in the form of a ring shelves out, cross-links are installed. Four points evenly around the circumference of the body, and the brackets in the middle are not between them, while the center of the hinges is in the same plane with the center of bending of the section of the body.

Description

The invention is fire-resistant to construction, in particular to the study of the complex-stress state of thin-walled structures of various types.

Known sample for study 5

state of rocks when stretching l ..

However, the known sample cannot be used to study the stress state of building10.

structures of different profiles as it has a circular section.

The closest to the technical nature of the invention is a sample for researching difficult-to-strain; 15 of the state of the building structures, including the housing of the channel profile, cross-links between the profile shelves and brackets with hinges a .. 20

A disadvantage of the known sample is that. it cannot be used to investigate the stress state of ring structures with transverse connections.

. The purpose of the invention is to expand the functionality.

The goal is achieved by the fact that in rbraz-i tsl dl. studies of the complex stress state of thin-walled structures, mainly building, interfacing channel channel profile, transverse connections between sticks, pro- | STI and brackets with hinges, Corus is made in the form of a ring with sticks. outward, the cross links are set at four points evenly around the circumference of the body, and the brackets are in the middle between them, with the center of the hinges in the same plane as the center. rum bending section of the hull.

FIG. 1 shows a sample, a general view; in fig. 2 - section A-A on fng.1; FIG. 3 is a view A of FIG. 2; in fig. 4 in Fig.2, on phi. 5 - section;

BB in FIG. 4, in FIG. 6-8 in cross-section at the points, in FIG. 1 (outgoing cross communications) | in FIG. 9 is a view of FIG. 6 in FIG. 10 is a view D in FIG. 7, in FIG. 11 — view B in FIG. eight.

The sample consists of body 1 - well profile, curved in a ring view with shelves facing out. Between the shelves of the body 1, four crosslinks 2 (FIG. 1) are evenly mounted, which can be made in the form of a plate, which is set tangentially

To the circumference of the body ((| wg.6), in the form of a sleeve with elbows (Fig. 7) and in the form of a plate installed across the profile (Fig.8),

In the middle of the meldu, transverse C193 mi at an angle of 45 with respect to them are mounted brackets 3 with hinges 4, In the console sample, crosslinks 2 in the form of a transverse plate are fixed equally at three points. The sample is tested on an installation having a base 5 with diametrically mounted supports 6 and poles 7.

Support 6 is connected to the hinges 4 of the brackets 3 through 8 and 8, and the supports 7 through an earring 9, a strain gauge 1O and a power cylinder 11,

Samples are tested as follows.

The specimen is subjected to compression by synchronously working ram cylinders 11. Normal stresses and strains are determined using strain gages fixed at different points of the body 1 of the specimen. The tangential stresses are determined by calculation, the angle of torsion is measured during the testing process.

The use of the invention makes it possible to investigate the stress state and the effect of cross-links in a thin-walled annular sample of a channel profile.

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1043511 6-6

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Claims (1)

SAMPLE FOR RESEARCH OF A STRESSED-STRESSED CONDITIONS OF THIN-WALLED CONSTRUCTIONS, mainly building, including the channel of the channel profile, transverse connections between the shelves of the profile in brackets with hinges, characterized in that, in order to expand the functionality, the body is made 'in the form of a ring with the shelves outward, the transverse connections are established. at four points evenly around the circumference of the housing, and the brackets in the middle between them, while the center of the hinges is in the same plane with the center of bending of the cross section of the housing.