RU26575U1 - Building element as a stand - Google Patents

Building element as a stand Download PDF

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Publication number
RU26575U1
RU26575U1 RU2002109040/20U RU2002109040U RU26575U1 RU 26575 U1 RU26575 U1 RU 26575U1 RU 2002109040/20 U RU2002109040/20 U RU 2002109040/20U RU 2002109040 U RU2002109040 U RU 2002109040U RU 26575 U1 RU26575 U1 RU 26575U1
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RU
Russia
Prior art keywords
concrete
building
core
metal tubular
tubular shell
Prior art date
Application number
RU2002109040/20U
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Russian (ru)
Inventor
А.Л. Кришан
В.Г. Матвеев
М.Ш. Гареев
И.В. Матвеев
Original Assignee
Магнитогорский государственный технический университет им. Г.И. Носова
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Priority to RU2002109040/20U priority Critical patent/RU26575U1/en
Application granted granted Critical
Publication of RU26575U1 publication Critical patent/RU26575U1/en

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Description

Object - Utility Model
BUILDING ELEMENT AS A STAND
The utility model relates to construction and can be used as an element working on compression, for example, columns of buildings and structures, supports of bridges and overpasses, various racks, etc.
A building element in the form of a pillar is known, which is a steel pipe-shell, inside of which there is a hollow core made of concrete hardening under pressure (see, for example, Murashkin G.V., Sakharov A.A. Concrete concrete elements hardening under pressure) Engineering problems of modern reinforced concrete. Materials of the international conference. Collection. Ivanovo. 1995. p. 3.).
The disadvantage of this element is the low bearing capacity due to the low strength of unreinforced concrete of the hollow core, as well as by increasing the likelihood of a slice of the concrete core of the element with an increase in the size of its cross section.
The closest analogue to the claimed object is a building element in the form of a rack, including a metal tubular shell, inside of which is placed a hollow core made of concrete, and end plates. In this case, the core is made of at least two layers of concrete applied to the shell by sequential centrifugation (see D .. C. USSR No. 1250630, E 04 C 3/36).
g 0-0 g ID 0 IPC E 04 C 3/36
  ... :
The disadvantage of this element is its low bearing capacity due to the use of centrifuged concrete in it, the structure of which, due to technological restrictions on the speed and time of rotation of the centrifuge, is formed at small, short-term pressing pressures and, therefore, corresponds to concretes of low strength. In addition, in this element there is no preliminary stretching of the metal tubular shell, which also reduces the bearing capacity of the element.
The technical result created by the utility model is to increase the bearing capacity of the element.
The technical result is achieved by the fact that in the known building element in the form of a pillar, comprising a metal tubular shell, inside which a hollow core made of concrete is placed, and end plates, according to the change, at least one spatial frame made of high strength longitudinal and transverse reinforcement.
The transverse reinforcement of the spatial frame is made in the form of rings or in the form of a spiral.
In addition, the metal tubular shell and the transverse reinforcement of the spatial frame are pre-stressed.
The essence of the utility model is illustrated by drawings, where:
in FIG. 2 is a section AA in FIG. 1;
in FIG. 3 is a diagram of a building element in the form of a rack with two spatial frames;
in FIG. 4 is a section bB in FIG. 3.
The building element 1 (Figs. 1-4) in the form of a pillar consists of a metal tubular shell 2 of any shape, inside of which a hollow core 3 made of pressed concrete is placed. At least one spatial framework 4 is installed in the concrete body of the hollow core 3.
The spatial frame 4 of the building element 1 consists of longitudinal 5 and transverse 6 reinforcement. Longitudinal reinforcement 5 is made of high-strength rods or wire of a periodic profile, and transverse reinforcement 6 is in the form of high-strength steel rings or spirals made of steel tape.
In this case, the metal tubular shell 2 and the transverse reinforcement 6 of the spatial frame 4 are pre-stressed.
The body of the concrete core 3 has a cavity 7. The ends of the metal tubular shell 2 are rigidly connected to the end plates 8. For ease of installation in the design position of two or more spatial frames 4 (Fig. 3.4) they are fastened together by connecting rods 9.
Building element 1 is made as follows. Before laying concrete mixture (not shown in the figure), one or more spatial frames 4, consisting of a high-strength, are mounted to the bottom end of which the end plate 8 is preliminarily rigidly attached to the vertical metal tubular shell 2 (Figs. 1–4) longitudinal 5 and transverse 6 reinforcement. When this transverse reinforcement 6 can be made in the form of rings or spirals. Then, a core former (not shown) is introduced into the metal tubular shell 2 and the space between the shell 2 and the core former is filled with concrete. After the molding process of the building element 1 is completed, lateral compression of the formed concrete core 3 of the building element is carried out by prolonged application of excess pressure on the concrete core from the core former. This allows you to pre-strain the metal tubular shell 2 and the transverse reinforcement 6 of one or several spatial frames 4 due to the transfer of pressing pressure through the thickness of the concrete of the core 3.
After the concrete has obtained a hollow core 3 with the required strength, the excess pressure in the core is vented to atmospheric and the core is removed from the formed cavity 7 of the building element 1. In this case, the pre-stretched metal tubular shell 2 and the transverse reinforcement 6 of one or more spatial frames 4 in the transverse direction are created in the concrete core 3 preliminary compressive stresses.
After that, the upper end plate 8 is rigidly attached to the tubular shell 2 and the building element in the form of a rack is ready for use.
Thus, the claimed building element has a high bearing capacity due to the fact that in the process of loading with an external compressive load, its concrete core, from the action of this load and preliminary compression with a metal tubular sheath, together with the small-sized reinforcement of the spatial frames, works under conditions of volume compression. Moreover, it has not only high strength, but also great deformability, which allows efficient use of high-strength steels as working longitudinal reinforcement.

Claims (4)

1. A building element in the form of a rack, comprising a metal tubular shell, inside which a hollow core made of concrete is placed, and end plates, characterized in that at least one spatial frame made of high-strength longitudinal and transverse reinforcement is installed in the concrete body of the hollow core.
 2. The element according to claim 1, characterized in that the transverse reinforcement of the spatial frame is made in the form of rings.
 3. The element according to claim 1, characterized in that the transverse reinforcement of the spatial frame is made in the form of a spiral.
4. The item according to paragraphs. 1-3, characterized in that the metal tubular shell and the transverse reinforcement of the spatial frame is made prestressed.
Figure 00000001
RU2002109040/20U 2002-04-08 2002-04-08 Building element as a stand RU26575U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002109040/20U RU26575U1 (en) 2002-04-08 2002-04-08 Building element as a stand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002109040/20U RU26575U1 (en) 2002-04-08 2002-04-08 Building element as a stand

Publications (1)

Publication Number Publication Date
RU26575U1 true RU26575U1 (en) 2002-12-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002109040/20U RU26575U1 (en) 2002-04-08 2002-04-08 Building element as a stand

Country Status (1)

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RU (1) RU26575U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2610477C1 (en) * 2015-08-14 2017-02-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Калмыцкий государственный университет имени Б.Б.Городовикова" Reinforced concrete hollow column (post) with random eccentricity
RU178561U1 (en) * 2017-11-20 2018-04-09 Федеральное государственное бюджетное образовательное учреждение высшего образования "Магнитогорский государственный технический университет им.Г.И.Носова" Rack-shaped building element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2610477C1 (en) * 2015-08-14 2017-02-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Калмыцкий государственный университет имени Б.Б.Городовикова" Reinforced concrete hollow column (post) with random eccentricity
RU178561U1 (en) * 2017-11-20 2018-04-09 Федеральное государственное бюджетное образовательное учреждение высшего образования "Магнитогорский государственный технический университет им.Г.И.Носова" Rack-shaped building element

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MM1K Utility model has become invalid (non-payment of fees)

Effective date: 20090409