RU186151U1 - BEZUNKERNY SUPPORT OF DRAWING DESIGNS - Google Patents

Abstract

The utility model relates to the field of construction, namely to the construction of supports of hanging structures of public and industrial buildings with large spans and with various configurations. Technical result: increased strength and rigidity of the structure of the anchorless support under the influence of horizontal and vertical (wind and weight) loads, ensuring high damping properties under the action of loads that change over time (seismic loads), the use of additional usable space. ultat achieved by that in an apparatus comprising a spatial T- shaped support, in its upper part, to a shelf pivotally suspended metal cables (or a buffer) as a counterweight concrete wall panel with no openings or wall panel with a window, doorway and stained. The reinforced concrete counterweight is connected from below by metal cables (or shock absorbers) to the foundation, and the cross-section and length of metal cables is determined by preliminary calculation.

Description

The utility model relates to the field of construction, namely, to the construction of supports of hanging structures of public and industrial buildings with large spans and with various configurations.

There are known constructions of supports that perceive the tension of a guy being held using racks and braces (braces) (see Engineering Constructions. Textbook. For High Schools on the Special "Architecture" / V.N. Golosov, V.V. Ermolov, N.V. Lebedeva et al .; Edited by V.V. Ermolov. - M.: Higher school., 1991. - 408 p.: ill. - Fig. 8.5 a-c, p. 310).

The disadvantage of the described structures is the structural complexity of the installation of the anchor foundation in the base, leading to a significant increase in the cost of the entire structure and violation of the architectural image of the building, as well as to the loss of usable space at the ends or around the entire structure due to the installation of inclined braces (braces) fixed by anchors.

The closest in technical essence and the achieved technical result is a massive structure containing a rigid frame (see Engineering Constructions. Textbook for universities on specialty "Architecture" / V.N. Golosov, V.V. Ermolov, N.V. Lebedeva et al .; Edited by V.V. Ermolov. - M.: Higher school, 1991. - 408 pp., ill. - Fig. 8.5d, p. 310).

The disadvantage of this device is the limited ability to use during construction in seismic areas due to the high rigidity of the system as a whole.

The objective of the claimed utility model is the creation of a simple and economical design of the anchorless support, designed for fastening cables in cable-stayed cables of various shapes and ensuring its effective use in seismic areas.

The technical result obtained by using the claimed utility model:

- ensuring high cushioning and damping properties of the supporting contour of the hanging structures of the building coatings under the action of seismic loads and at the same time achieving the effect of unloading the anchor foundation support node into the base when horizontal and vertical (wind and weight) loads are applied to the support.

The technical result is achieved in that in a device containing a spatial L-shaped support, in its upper part, a counterweight in the form of a reinforced concrete wall panel with openings, which is supported from below through vertical shock absorbers on the foundation, and along the side surfaces along height is fixed by horizontal shock absorbers with adjacent panels.

To reduce the cable-stayed loads, the shock absorbers can possess, in addition to the shock-absorbing properties, damping properties. The stiffness of the shock absorbers is determined by preliminary calculation.

The design of the device is shown in the drawings:

FIG. 1 is a side view of an anchorless support;

FIG. 2, FIG. 2a is a front view of an anchorless support.

The design of the non-anchor support comprises a vertical structure — a rack 1 and a horizontal structure rigidly connected to it — a shelf 2. To the embedded parts 3 of the shelf 2, a counterweight 5 is pivotally suspended on vertical shock absorbers 4 in the form of a reinforced concrete wall panel. Mortgage devices 6, installed along the contour of the panels with a constructive pitch, connect the panels to each other in height (Fig. 1, 2). Also, horizontal shock absorbers 4 are attached to the embedded elements 6 to improve the cushioning properties of the support. In the lower part, the counterweight 5 is pivotally connected by vertical shock absorbers 4, with embedded parts 7 of the foundation 8 (Fig. 2A).

The device operates as follows. To the L-shaped support, consisting of a rack 1 and a shelf 2 (Fig. 1, Fig. 2), a counterweight 5 is pivotally suspended on the shock absorbers 4, perceiving horizontal and vertical loads from the cable-stayed coating. The counterweight 5 is made in the form of a wall panel that protects the interior of the building from external atmospheric influences and has the required mass. The panel is pivotally fixed with the foundation 8, due to which it holds the Г - shaped support from the overturning moment acting on the stand from the cable stay (cable stay). The overturning moment is compensated by the holding moment from the gravity of the suspended wall panels, which ensures the stability of the support as a whole. The panel unloads with its own weight the attachment points of the lower shock absorbers 4 to the foundation 8.

The design is performed in the following sequence. After the foundation is installed under the anchorless support, a L-shaped support is installed, consisting of a rack 1 with a rigidly connected shelf 2. In places where the counterweight 5 is hinged to the shelf 2 and the foundation 8, embedded elements 3, 6, 7 are installed. Similar elements are installed with a constructive pitch also along the contour of the wall panel in order to connect the wall panels to each other in height (Fig. 2). The counterweight 5 (wall panel) is suspended from the L-shaped support on the vertical shock absorbers 4 and mounted on the lower vertical shock absorbers 4, connecting it with the embedded parts 6 of the foundation 8. In case of changes in oscillatory processes during seismic impacts, the wall panels are fastened together by horizontal shock absorbers 4 ( Fig. 2a). The stiffness and damping characteristics of the shock absorbers 4 are selected based on a preliminary calculation.

The proposed design of the anchorless support eliminates the need for inclined stretch marks (braces), which are characteristic of well-known technical solutions for a similar purpose. Perceiving the distance from the cable-staying tension, and while ensuring the high bearing capacity of the cable-staying and foundations, both under static and dynamic external influences, the proposed design effectively dampens and dampens the vibrations of a large multi-mass system, unloads the attachment points of the lower shock absorber to the foundation of the anchorless supports and allows efficient use of additional areas located on the external contour of the building.

Claims (1)

An anchorless support of hanging structures containing a spatial support, characterized in that the spatial support is L-shaped and in its upper part, a counterweight in the form of a reinforced concrete wall panel with openings, which is supported from below through vertical shock absorbers on the foundation, is pivotally suspended on the shelf on the shelf, and on lateral surfaces in height it is fastened with horizontal shock absorbers with adjacent panels.

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