WO2010044698A1 - Butt joint of a monolithic floor with a column - Google Patents
Butt joint of a monolithic floor with a column Download PDFInfo
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- WO2010044698A1 WO2010044698A1 PCT/RU2009/000521 RU2009000521W WO2010044698A1 WO 2010044698 A1 WO2010044698 A1 WO 2010044698A1 RU 2009000521 W RU2009000521 W RU 2009000521W WO 2010044698 A1 WO2010044698 A1 WO 2010044698A1
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- column
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- butt joint
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
Definitions
- the invention relates to the field of construction, namely to the construction of prefabricated reinforced concrete floors, and can be used in structures of supporting structures of beam-free floors.
- a butt joint is known for the capitals of bezel-free reinforced concrete floors with the column according to the USSR copyright certificate N ° 876907, class. E 04 B 5/43, 1981. It contains the central part of the slab with an opening widening downwards and the reinforcing outlets of the column and slab, a reinforcing cage protruding from under the plane of the capital in the form of a truncated pyramid or a truncated cone and attached to the releases of the reinforcement of the column and capitals, and the column in the joint zone is profiled with alternating grooves and ridges, and the joint cavity is monolithic.
- An object of the invention is to reduce the metal consumption of the plates by reducing their weight and simplifying the design, as well as reducing the weight of the entire assembly as a whole without reducing its reliability and bearing capacity.
- the plates are made in the form of bent profiles and are equipped with stiffeners, and stiffeners are installed along each plate in pairs from two sides, at least at the upper and lower ends of the plate.
- the bent profile of the plates is made in the form of either a sinusoid, or a rectangle, or a trapezoid
- the stiffeners are made of either reinforcement, or a strip, or a corner, or a channel and are fastened to the plate by welding, or fasteners.
- FIG. 1 shows the connection of a column with a floor slab using plates in the form of bent profiles (the upper and lower grids of the reinforcing cage of the floor slab are not conventionally shown); in FIG. 2 - section A - A in FIG. one ; in FIG. 3 - plates equipped with stiffeners made of reinforcement and connected to it by welding; in FIG. 4 - types of bent plate profiles; in FIG. 5 - examples of stiffeners; in FIG. 6 - fastening the stiffeners to the plate by means of either welding or fasteners.
- a butt joint of a bezel-free reinforced concrete floor with a column includes a column 1 and a floor slab 2, inside of which reinforcing cages are placed, respectively: 3 - the reinforcing cage of the column and 4 - the reinforcing cage of the floor slab.
- plates 5 are rigidly fixed in the direction from the column 1 to the floor slab 2. All plates 5, at least two opposite each face of the column, are mounted on the rib.
- each plate 5 is placed between the upper and lower grids of the reinforcing cage 4 of the floor slab and is rigidly connected to them.
- each plate 5 is made in the form of a bent profile and is equipped with stiffening elements 6, which are installed along each plate 5 in pairs from two sides, at least at the upper and lower ends.
- stiffening elements 6 are installed along each plate 5 in pairs from two sides, at least at the upper and lower ends.
- the bent profile of the plate can be represented by several types of curves, for example: in the form of a sinusoid, rectangle, trapezoid, triangle and other similar shapes.
- stiffening elements 6 can be made, for example: from reinforcement, bar, strip, angle or channel and the like.
- the fastening of the stiffening elements 6 with the plate 5 is carried out by, for example: resistance welding, knitting wire, through clamps or other fasteners 7.
- the lower mesh of the reinforcing cage 4 of the floor slab 2 is laid, while the reinforcing cage 3 of the column 1 is already brought out above the formwork. Then the prepared plate 5 is installed on the rib and attached to the bottom mesh of the reinforcing cage 4 of the floor slab 2.
- Preliminary preparation of the plates is as follows. To a plate made of the calculated length, thickness, and with a selected profile, on the upper and lower ends it is attached in pairs by stiffeners 6 also calculated from the proposed series, depending on the required load-bearing capacity and the presence of any stiffeners 6. At the same time, the assembly of plates 5 with stiffeners 6 can be combined with their installation on a reinforcing cage 4 floor slabs 2 directly on a construction site.
- Plates with a bent profile are more resistant to long-term static load.
- a sinusoidal rib has an advantage over the direct one due to the elimination of local deformation inherent to flat plates. Thanks to the profiled plate, the design effectively dampens bending loads.
- the plate Under static load conditions, the plate is calculated according to a scheme in which bending moments and normal forces are transmitted only through the shelves: after connecting to with stiffening elements, the plate takes the form of an I-beam, in which stiffeners serve as shelves of the beam, and the transverse forces are distributed only through the diagonals and verticals of the formed beam - in this case, through the corrugated wall.
- the use of the proposed technical solution made it possible without loss of reliability and load-bearing ability to create a butt joint of a monolithic overlap with a column, which allowed on average up to 4OX to reduce the metal consumption of the plates, reduce the weight of building structures, save the metal used due to the sufficient load-bearing capacity of the plates in the form of bent profiles equipped with stiffeners and representing beams. And also the use of the proposed technical solution allows to reduce the cost of work and increase their productivity.
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the field of construction, and specifically to the fabrication of precast reinforced concrete floors, and can be used in fabricating the supporting structures of beamless floors. The aim of the invention is to reduce the metal content of the plates by reducing their weight and simplifying the design, and also to reduce the weight of the entire unit as a whole without impairing its reliability and bearing capacity. This is achieved in that the plates are made in the form of formed sections and are provided with stiffening elements, the stiffening elements being installed along each plate in pairs on either side, at least along the upper and lower ends of the slab. In addition, the formed sections of the plates are made in the form of a sinusoid, or a rectangle, or a trapezium, while the stiffening elements are made from a reinforcement, or a strip, or an angle, or a channel, and are secured to the plate by means of welding or fasteners.
Description
СТЫКОВОЕ СОЕДИНЕНИЕ МОНОЛИТНОГО ПЕРЕКРЫТИЯ С КОЛОННОЙ JOINT CONNECTION OF MONOLITHIC FLOOR WITH COLUMN
Изобретение относится к области строительства, а именно к сооружению сборных железобетонных перекрытий, и может быть использовано в сооружениях опорных конструкций безбалочных перекрытий.The invention relates to the field of construction, namely to the construction of prefabricated reinforced concrete floors, and can be used in structures of supporting structures of beam-free floors.
Известно стыковое соединение капители безбалочного железобетонного перекрытия с колонной по авторскому свидетельству СССР N° 876907, кл. E 04 В 5/43, 1981г.. Оно содержит центральную часть плиты с расширяющимся книзу отверстием и арматурные выпуски колонны и плиты, в отверстие для пропуска колонны помещен арматурный каркас, выступающий из-под плоскости капители в форме усеченной пирамиды или усеченного конуса и присоединенный к выпускам арматуры колонны и капители, причем колонна в зоне стыка выполнена профилированной с чередующимися пазами и гребнями, а полость стыка омоноличена.A butt joint is known for the capitals of bezel-free reinforced concrete floors with the column according to the USSR copyright certificate N ° 876907, class. E 04 B 5/43, 1981. It contains the central part of the slab with an opening widening downwards and the reinforcing outlets of the column and slab, a reinforcing cage protruding from under the plane of the capital in the form of a truncated pyramid or a truncated cone and attached to the releases of the reinforcement of the column and capitals, and the column in the joint zone is profiled with alternating grooves and ridges, and the joint cavity is monolithic.
Недостатками этого стыкового соединения являются высокие трудозатраты и материалоемкость узла соединения колонны с плитой перекрытия.The disadvantages of this butt joint are the high labor costs and material consumption of the node connecting the columns with the slab.
Известно стыковое соединение безбалочного железобетонного перекрытия с колонной по патенту Российской Федерации N°2194825, кл. E 04 В 5/43, 2002 г., принятое заявителем за прототип. Оно содержит колонну и плиту перекрытия, арматурные каркасы колонны и плиты перекрытия, напротив каждой грани колонны симметрично относительно осей колонны, на арматурном каркасе нижней и верхней сетки плиты перекрытия жестко закреплены пластины в направлении от колонны к плите перекрытия, пластины выполнены длиной не менее 2h+2a, где h - толщина плиты перекрытия, а - толщина защитного слоя бетона колонны, и установлены на
ребро, причем один конец каждой пластины выполнен прямоугольной формы и установлен за гранью колонны на расстоянии не менее 2а, а другой имеет скос под углом 45 градусов, расположенный перпендикулярно к боковой поверхности призмы продавливания плиты.Known for the butt connection of beam-free reinforced concrete floors with a column according to the patent of the Russian Federation N ° 2194825, class. E 04 B 5/43, 2002, adopted by the applicant for the prototype. It contains a column and a slab, reinforcing cages of a column and a slab, opposite each column face is symmetrical relative to the axis of the column, plates are fixed on the reinforcing cage of the lower and upper grid of the slab in the direction from the column to the slab, the plates are made at least 2h + 2a, where h is the thickness of the floor slab, and is the thickness of the protective layer of concrete columns, and are installed on a rib, and one end of each plate is made in a rectangular shape and is installed beyond the edge of the column at a distance of at least 2a, and the other has a bevel at an angle of 45 degrees, located perpendicular to the side surface of the prism of the plate forcing.
Однако такое соединение колонны с плитой перекрытия требует значительного расхода металла, что прямо связано с увеличением веса конструкции.However, such a connection of the column with the slab requires a significant consumption of metal, which is directly related to the increase in the weight of the structure.
Технической задачей изобретения является уменьшение металлоёмкости пластин путём снижения их веса и упрощения конструкции, а также снижение веса всего узла в целом без снижения его надёжности и несущей способности.An object of the invention is to reduce the metal consumption of the plates by reducing their weight and simplifying the design, as well as reducing the weight of the entire assembly as a whole without reducing its reliability and bearing capacity.
Поставленная задача решается тем, что в предлагаемом техническом решении пластины выполнены в виде гнутых профилей и снабжены элементами жёсткости, причём элементы жёсткости установлены вдоль каждой пластины попарно с двух сторон, по меньшей мере, по верхнему и нижнему торцам пластины.The problem is solved in that in the proposed technical solution, the plates are made in the form of bent profiles and are equipped with stiffeners, and stiffeners are installed along each plate in pairs from two sides, at least at the upper and lower ends of the plate.
Кроме того, гнутый профиль пластин выполнен в виде или синусоиды, или прямоугольника, или трапеции, а элементы жёсткости выполнены или из арматуры, или полосы, или уголка, или швеллера и скреплены с пластиной посредством сварки, или крепёжных элементов.In addition, the bent profile of the plates is made in the form of either a sinusoid, or a rectangle, or a trapezoid, and the stiffeners are made of either reinforcement, or a strip, or a corner, or a channel and are fastened to the plate by welding, or fasteners.
На фиг. 1 изображено соединение колонны с плитой перекрытия с использованием пластин в виде гнутых профилей, (верхняя и нижняя сетки арматурного каркаса плиты перекрытия условно не показаны); на фиг. 2 - сечение А - А на фиг. 1 ; на фиг. 3 - пластины, снабжённые элементами жёсткости, выполненными из арматуры и соединёнными с ней посредством сварки; на фиг. 4 - виды гнутых профилей пластины; на фиг. 5 - примеры элементов жёсткости;
на фиг. 6 - крепление элементов жёсткости к пластине посредством или сварки, или крепёжных элементов.In FIG. 1 shows the connection of a column with a floor slab using plates in the form of bent profiles (the upper and lower grids of the reinforcing cage of the floor slab are not conventionally shown); in FIG. 2 - section A - A in FIG. one ; in FIG. 3 - plates equipped with stiffeners made of reinforcement and connected to it by welding; in FIG. 4 - types of bent plate profiles; in FIG. 5 - examples of stiffeners; in FIG. 6 - fastening the stiffeners to the plate by means of either welding or fasteners.
Стыковое соединение безбалочного железобетонного перекрытия с колонной включает в себя колонну 1 и плиту перекрытия 2, внутри которых размещены арматурные каркасы, соответственно: 3 - арматурный каркас колонны и 4 - арматурный каркас плиты перекрытия. Напротив каждой грани колонны 1 симметрично относительно осей колонны и плиты перекрытия 2 жестко закреплены пластины 5 в направлении от колонны 1 к плите перекрытия 2. Все пластины 5, по меньшей мере, по две напротив каждой грани колонны, установлены на ребро. Причём каждая пластина 5 размещена между верхней и нижней сетками арматурного каркаса 4 плиты перекрытия и жестко с ними соединена. А также каждая пластина 5 выполнена в виде гнутого профиля и снабжена элементами жёсткости 6, которые установлены вдоль каждой пластины 5 попарно с двух сторон, по меньшей мере, по верхнему и нижнему торцам. Такая конструкция пластины значительно тоньше и требует меньше металла, намного легче плоской и превосходит аналог по несущей способности. При выполнении очень ответственной конструкции здания, требующей более усиленной плиты перекрытия с повышенной несущей способностью, возможно дополнительное размещение элементов жёсткости 6 по высоте пластины 5 между её верхним и нижним торцами.A butt joint of a bezel-free reinforced concrete floor with a column includes a column 1 and a floor slab 2, inside of which reinforcing cages are placed, respectively: 3 - the reinforcing cage of the column and 4 - the reinforcing cage of the floor slab. Opposite each face of the column 1 symmetrically with respect to the axes of the column and the floor slab 2, plates 5 are rigidly fixed in the direction from the column 1 to the floor slab 2. All plates 5, at least two opposite each face of the column, are mounted on the rib. Moreover, each plate 5 is placed between the upper and lower grids of the reinforcing cage 4 of the floor slab and is rigidly connected to them. And also each plate 5 is made in the form of a bent profile and is equipped with stiffening elements 6, which are installed along each plate 5 in pairs from two sides, at least at the upper and lower ends. This design of the plate is much thinner and requires less metal, is much lighter than a flat one and surpasses the analogue in bearing capacity. When performing a very critical building structure, requiring a more reinforced floor slab with increased bearing capacity, additional placement of stiffening elements 6 along the height of the plate 5 between its upper and lower ends is possible.
Гнутый профиль пластины может быть представлен несколькими видами кривых, например: в виде синусоиды, прямоугольника, трапеции, треугольника и других подобных фигур. А элементы жёсткости 6 могут быть выполнены, например: из арматуры, прутка, полосы, уголка или швеллера и им подобных. Крепление элементов жёсткости 6 с пластиной 5 осуществляют посредством, например:
контактной сварки, вязальной проволоки, сквозных хомутов или других крепёжных элементов 7.The bent profile of the plate can be represented by several types of curves, for example: in the form of a sinusoid, rectangle, trapezoid, triangle and other similar shapes. And stiffening elements 6 can be made, for example: from reinforcement, bar, strip, angle or channel and the like. The fastening of the stiffening elements 6 with the plate 5 is carried out by, for example: resistance welding, knitting wire, through clamps or other fasteners 7.
Монтаж стыкового соединения осуществляют следующим образом.Installation of the butt joint is as follows.
На опалубку, подведённую под перекрытие (условно не показана), укладывают нижнюю сетку арматурного каркаса 4 плиты перекрытия 2, при этом арматурный каркас 3 колонны 1 уже выведен над опалубкой. Затем подготовленные пластины 5 устанавливают на ребро и прикрепляют к нижней сетке арматурного каркаса 4 плиты перекрытия 2.On the formwork brought under the slab (not shown conditionally), the lower mesh of the reinforcing cage 4 of the floor slab 2 is laid, while the reinforcing cage 3 of the column 1 is already brought out above the formwork. Then the prepared plate 5 is installed on the rib and attached to the bottom mesh of the reinforcing cage 4 of the floor slab 2.
Предварительная подготовка пластин заключается в следующем. К пластине, выполненной расчётной длины, толщины и с выбранным профилем, по верхнему и нижнему торцам её прикрепляют попарно элементы жёсткости 6 также рассчитанные из предлагаемого ряда в зависимости от требуемой несущей способности и наличия на строительной площадке тех или иных элементов жёсткости 6. Кроме того, сборку пластин 5 с элементами жёсткости 6 можно совместить с установкой их на арматурном каркасе 4 плиты перекрытия 2 непосредственно на строительном объекте.Preliminary preparation of the plates is as follows. To a plate made of the calculated length, thickness, and with a selected profile, on the upper and lower ends it is attached in pairs by stiffeners 6 also calculated from the proposed series, depending on the required load-bearing capacity and the presence of any stiffeners 6. At the same time, the assembly of plates 5 with stiffeners 6 can be combined with their installation on a reinforcing cage 4 floor slabs 2 directly on a construction site.
После этого устанавливают верхнюю сетку арматурного каркаса 4 плиты перекрытия 2 и также скрепляют её с пластинами 5. Соединение готово к заполнению бетоном.After that, the upper mesh of the reinforcing cage 4 of the floor slab 2 is installed and also fastened to the plates 5. The joint is ready for filling with concrete.
Пластины, имеющие гнутый профиль, более устойчивы к длительной статической нагрузке. Кроме выгод, извлекаемых из технологии производства, ребро с синусоидальным профилем имеет преимущество перед прямым из-за устранения местной деформации, свойственной плоским пластинам. Благодаря профилированной пластине, конструкция эффективно гасит изгибающие нагрузки. В условиях статической нагрузки пластина рассчитывается по схеме, в которой изгибающие моменты и нормальные силы передаются только через полки: после соединения с
элементами жёсткости пластина принимает вид двутавровой балки, у которой элементы жёсткости служат полками балки, а поперечные силы распределяются только через диагонали и вертикали образованной балки - в данном случае через гофрированную стенку.Plates with a bent profile are more resistant to long-term static load. In addition to the benefits derived from the production technology, a sinusoidal rib has an advantage over the direct one due to the elimination of local deformation inherent to flat plates. Thanks to the profiled plate, the design effectively dampens bending loads. Under static load conditions, the plate is calculated according to a scheme in which bending moments and normal forces are transmitted only through the shelves: after connecting to with stiffening elements, the plate takes the form of an I-beam, in which stiffeners serve as shelves of the beam, and the transverse forces are distributed only through the diagonals and verticals of the formed beam - in this case, through the corrugated wall.
Использование предлагаемого технического решения позволило без снижения надёжности и несущей способности создать стыковой узел монолитного перекрытия с колонной, позволивший в среднем до 4OX уменьшить металлоёмкость пластин, снизить вес строительных конструкций, сэкономить используемый металл благодаря достаточной несущей способности пластин в виде гнутых профилей, снабжённых элементами жёсткости и представляющих собой балки. А также использование предлагаемого технического решения позволяет снизить себестоимость производимых работ и повысить их производительность.
The use of the proposed technical solution made it possible without loss of reliability and load-bearing ability to create a butt joint of a monolithic overlap with a column, which allowed on average up to 4OX to reduce the metal consumption of the plates, reduce the weight of building structures, save the metal used due to the sufficient load-bearing capacity of the plates in the form of bent profiles equipped with stiffeners and representing beams. And also the use of the proposed technical solution allows to reduce the cost of work and increase their productivity.
Claims
1. Стыковое соединение монолитного перекрытия с колонной, содержащее колонну и плиту перекрытия, арматурные каркасы колонны и плиты перекрытия, установленные на арматурном каркасе плиты перекрытия в направлении от колонны к плите перекрытия пластины, отличающееся тем, что пластины выполнены в виде гнутых профилей и снабжены элементами жёсткости, причём элементы жёсткости установлены вдоль каждой пластины попарно с двух сторон, по меньшей мере, по верхнему и нижнему торцам пластины.1. A butt joint of a monolithic overlap with a column containing a column and a slab, reinforcing cages of the column and slabs installed on the reinforcing frame of the slab in the direction from the column to the slab of the plate, characterized in that the plates are made in the form of bent profiles and equipped with elements stiffness, and stiffeners are installed along each plate in pairs from two sides, at least along the upper and lower ends of the plate.
2. Стыковое соединение по п. 1, о т л и ч а ю щ е е с я тем, что гнутый профиль пластин выполнен в виде или синусоиды, или прямоугольника, или трапеции, а элементы жёсткости выполнены или из арматуры, или полосы, или уголка, или швеллера и скреплены с пластиной посредством сварки, или крепёжных элементов. 2. The butt joint according to claim 1, with the proviso that the bent profile of the plates is made in the form of either a sinusoid, or a rectangle, or a trapezoid, and the stiffeners are made of either reinforcement or a strip, or corner, or channel and fastened to the plate by welding, or fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE212009000117U DE212009000117U1 (en) | 2008-10-13 | 2009-10-07 | Butt joint between a solid ceiling and columns |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008140621 | 2008-10-13 | ||
| RU2008140621/03A RU2383692C1 (en) | 2008-10-13 | 2008-10-13 | Butt joint of monolithic slab with column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010044698A1 true WO2010044698A1 (en) | 2010-04-22 |
Family
ID=42106705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2009/000521 WO2010044698A1 (en) | 2008-10-13 | 2009-10-07 | Butt joint of a monolithic floor with a column |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE212009000117U1 (en) |
| RU (1) | RU2383692C1 (en) |
| WO (1) | WO2010044698A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11035011B2 (en) * | 2012-01-26 | 2021-06-15 | Luc Montagnier | Detection of DNA sequences as risk factors for HIV infection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03235845A (en) * | 1990-02-14 | 1991-10-21 | Mitsui Constr Co Ltd | Pillar/slab junction structure in flat slab structure |
| RU2194825C2 (en) * | 2000-10-20 | 2002-12-20 | Анпилов Сергей Михайлович | Joint of girdless reinforced concrete floor with column |
| KR20060102872A (en) * | 2005-03-25 | 2006-09-28 | (주) 동양구조안전기술 | Shear reinforcement device arranged in the slab-column connection and construction method thereof |
-
2008
- 2008-10-13 RU RU2008140621/03A patent/RU2383692C1/en not_active IP Right Cessation
-
2009
- 2009-10-07 WO PCT/RU2009/000521 patent/WO2010044698A1/en active Application Filing
- 2009-10-07 DE DE212009000117U patent/DE212009000117U1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03235845A (en) * | 1990-02-14 | 1991-10-21 | Mitsui Constr Co Ltd | Pillar/slab junction structure in flat slab structure |
| RU2194825C2 (en) * | 2000-10-20 | 2002-12-20 | Анпилов Сергей Михайлович | Joint of girdless reinforced concrete floor with column |
| KR20060102872A (en) * | 2005-03-25 | 2006-09-28 | (주) 동양구조안전기술 | Shear reinforcement device arranged in the slab-column connection and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11035011B2 (en) * | 2012-01-26 | 2021-06-15 | Luc Montagnier | Detection of DNA sequences as risk factors for HIV infection |
Also Published As
| Publication number | Publication date |
|---|---|
| DE212009000117U1 (en) | 2011-12-20 |
| RU2383692C1 (en) | 2010-03-10 |
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