ES2677725T3 - A joint between beam and column elements made of precast reinforced concrete - Google Patents
A joint between beam and column elements made of precast reinforced concrete Download PDFInfo
- Publication number
- ES2677725T3 ES2677725T3 ES15808789.0T ES15808789T ES2677725T3 ES 2677725 T3 ES2677725 T3 ES 2677725T3 ES 15808789 T ES15808789 T ES 15808789T ES 2677725 T3 ES2677725 T3 ES 2677725T3
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- column
- joint
- rods
- reinforcement
- supports
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Una junta entre elementos de viga (T) y elementos de columna (C) elaborados a partir de hormigón armado. La junta comprende: A) una porción prefabricada con la viga (T), equipada con varillas de refuerzo de proyección (1); B) una porción prefabricada con la columna (C), equipada con varillas de refuerzo de proyección (3), que pueden disponerse a lo largo de dichas varillas de refuerzo (1) de la viga (T); y C) una porción que puede completarse in situ; donde la sección cruzada de la viga prefabricada (T) en la junta, se ensancha de manera paulatina de modo tal que luego se divide en dos elementos prismáticos con una sección cruzada rectangular estrecha, a los que se hace referencia como soportes (S), lo que define un compartimento de contención, es decir, un encofrado para el moldeado posterior; dicho compartimento de contención es accesible y está abierto en la parte superior, en la inferior y en la parte frontal que mira a la columna (C), donde dichas varillas de refuerzo (1 y 3) están dispuestas en planos verticales mutuamente paralelos, donde la columna (C) comprende el medio de soporte temporario para la viga (T) durante la instalación, caracterizado por el hecho de que las varillas de refuerzo que se proyectan (1 y 3) presentan forma de U y por el hecho de que la longitud de dicho medio es tal que permite a los operadores obtener acceso al compartimento de contención entre los soportes (S) también desde abajo de dicho compartimento a fin de facilitar las operaciones de posicionamiento de las abrazaderas (2) a lo largo de los refuerzos mencionados (1 y 3) cuando la viga (T) se posiciona en la columna (C) en su posición final instalada.A joint between beam elements (T) and column elements (C) made from reinforced concrete. The joint comprises: A) a prefabricated portion with the beam (T), equipped with projection reinforcement rods (1); B) a prefabricated portion with the column (C), equipped with projection reinforcement rods (3), which can be arranged along said reinforcement rods (1) of the beam (T); and C) a portion that can be completed in situ; where the cross section of the prefabricated beam (T) in the joint widens gradually so that it is then divided into two prismatic elements with a narrow rectangular cross section, referred to as supports (S), what defines a containment compartment, that is, a formwork for subsequent molding; said containment compartment is accessible and is open at the top, bottom and front facing the column (C), where said reinforcing rods (1 and 3) are arranged in mutually parallel vertical planes, where the column (C) comprises the temporary support means for the beam (T) during installation, characterized by the fact that the projecting reinforcement rods (1 and 3) have a U-shape and by the fact that the length of said means is such that it allows operators to gain access to the containment compartment between the supports (S) also from below said compartment in order to facilitate the positioning operations of the clamps (2) along the mentioned reinforcements (1 and 3) when the beam (T) is positioned in column (C) in its final installed position.
Description
DESCRIPCIONDESCRIPTION
Una junta entre elementos de viga y columna fabricados con hormigon armado prefabricado 5 CAMPO DE LA INVENCIONA joint between beam and column elements made of precast reinforced concrete 5 FIELD OF THE INVENTION
[0001] La presente invencion se relaciona basicamente con el sector de edificaciones prefabricadas y, en particular, con un nuevo tipo de junta entre elementos de viga y columna elaborados a partir de hormigon armado prefabricado, caracterizado por una gran facilidad de disposicion in situ y la proporcion de encofrados en los que se[0001] The present invention relates basically to the sector of prefabricated buildings and, in particular, to a new type of joint between beam and column elements made from precast reinforced concrete, characterized by a great ease of arrangement on site and the proportion of formwork in which
10 vierte el hormigon para completar la junta en si misma.10 pour the concrete to complete the joint itself.
[0002] Actualmente existe un tipo de junta de viga-columna que puede parecer similar a la junta, de acuerdo con la presente invencion, debido a que la viga esta equipada con soportes de extremos laterales para la contencion lateral del moldeado del hormigon que constituye la junta, aunque la diferencia principal reside en el hecho de que,[0002] There is currently a type of beam-column joint that may appear similar to the joint, in accordance with the present invention, because the beam is equipped with lateral end brackets for the lateral containment of the concrete molding that constitutes the board, although the main difference lies in the fact that,
15 en el caso conocido, la seccion cruzada actual de la viga se encuentra definida por los estrados de los soportes, sin ningun estrechamiento de la seccion de la viga fuera de la junta.15 in the known case, the current cross section of the beam is defined by the stands of the supports, without any narrowing of the beam section outside the joint.
[0003] Tambien se conoce otro tipo de junta de viga-columna, cuya diferencia principal respecto a la junta que constituye el sujeto de la presente invencion yace en el hecho de que la misma no preve los soportes y el molde[0003] Another type of beam-column joint is also known, whose main difference with respect to the joint constituting the subject of the present invention lies in the fact that it does not provide for the supports and the mold
20 se encuentra totalmente contenido por el encofrado proporcionado in situ adrede. En este caso, existe una dificultad practica evidente en cuanto a brindar soporte al elemento de la viga antes del moldeado, tanto que la unica aplicacion que se conoce es en experimentos orientados a establecer la efectividad de la transferencia de las tensiones entre las varillas de refuerzo, por medio de la configuration en forma de U.20 is fully contained by the formwork provided on-site on purpose. In this case, there is an obvious practical difficulty in providing support to the beam element before molding, so much so that the only application known is in experiments aimed at establishing the effectiveness of the transfer of tensions between the reinforcing rods , through the U-shaped configuration.
25 [0004] Las diferentes caracterlsticas de construction, ademas de las diferencias de una naturaleza25 [0004] The different construction characteristics, in addition to the differences of one nature
geometrica, provocan, en particular en el primer caso de la tecnica conocida, un desperdicio significativo de hormigon. Ademas, en los casos a los que se hace referencia arriba, es diflcil posicionar y dar soporte a la viga de manera conveniente durante la instalacion, y las juntas que por consiguiente pueden obtenerse no permiten restaurar la continuidad de la estructura de un modo ventajoso en terminos economicos.geometric, they cause, in the first case of the known technique, a significant waste of concrete. In addition, in the cases referred to above, it is difficult to position and support the beam conveniently during installation, and the joints that can therefore be obtained do not allow restoring the continuity of the structure in an advantageous way in economic terms.
3030
[0005] Tambien se conoce, a partir de la patente N.° JP 2012 144936, la cual describe el antecedente de la revindication 1, una junta de viga-columna fabricada con hormigon armado prefabricado, en la que a diferencia de la presente invencion, las varillas de refuerzo estan constituidas por longitudes rectillneas simples de hierro que presentan una cabeza de anclaje a insertar en la junta a traves de agujeros proporcionados luego de la instalacion[0005] It is also known, from the patent No. JP 2012 144936, which describes the background of revindication 1, a beam-column joint made of precast reinforced concrete, in which unlike the present invention , the reinforcement rods are constituted by simple straight iron lengths that have an anchoring head to be inserted into the joint through holes provided after installation
35 de la viga en la columna.35 of the beam in the column.
[0006] Un mejor entendimiento de la invencion podra obtenerse a partir de la posterior description detallada y referencia a los dibujos adjuntos, los cuales ilustran, exclusivamente a tltulo de ejemplo no restrictivo, una realization preferida.[0006] A better understanding of the invention may be obtained from the subsequent detailed description and reference to the accompanying drawings, which illustrate, exclusively by way of non-restrictive example, a preferred embodiment.
4040
[0007] En los dibujos:[0007] In the drawings:
La figura 1A es una vista 3D con los refuerzos visibles a traves de la misma, de los extremos de una viga y una columna prefabricadas, de acuerdo con la presente invencion, durante el paso de la constitution de la junta;Figure 1A is a 3D view with the reinforcements visible through it, of the ends of a prefabricated beam and column, in accordance with the present invention, during the passage of the constitution of the joint;
45Four. Five
la figura 1B es una vista, no del tipo transparente, que corresponde a la anterior;Figure 1B is a view, not of the transparent type, corresponding to the previous one;
la figura 2A es una vista transparente desde arriba de los tramos de la viga y la columna de la figura 1;Figure 2A is a transparent view from above of the beam and column sections of Figure 1;
50 la figura 2B es una vista, no del tipo transparente, que corresponde a la anterior;Figure 2B is a view, not of the transparent type, corresponding to the previous one;
las figuras 3A y 4A corresponden a las figuras 1 y 2 respectivamente y muestran, en una vista transparente, la viga y la columna una vez que el ensamble in situ de las juntas se ha completado; yFigures 3A and 4A correspond to Figures 1 and 2 respectively and show, in a transparent view, the beam and the column once the on-site assembly of the joints has been completed; Y
55 las figuras 3B y 4B son vistas, no del tipo transparente, que corresponden a las anteriores.55 Figures 3B and 4B are views, not of the transparent type, corresponding to the previous ones.
[0008] En terminos estructurales, las caracterlsticas de restriction que garantiza la junta son aquellas de una junta fija perfecto.[0008] In structural terms, the restriction characteristics guaranteed by the joint are those of a perfect fixed joint.
[0009] En la realizacion, de acuerdo con la invention descrita en esta invention, la junta basicamente abarca:[0009] In the embodiment, according to the invention described in this invention, the board basically covers:
1. una portion prefabricada con la viga T;1. a prefabricated portion with the T beam;
2. una porcion prefabricada con la columna C; y 5 3. una porcion que puede completarse in situ.2. a prefabricated portion with column C; and 5 3. a portion that can be completed on site.
1. PORCION PREFABRICADA CON LA JUNTA1. PORTION PREFABRICATED WITH THE BOARD
[0010] La viga en cuestion normalmente tiene una section rectangular.[0010] The beam in question normally has a rectangular section.
1010
[0011] En la information a continuation se hara referencia la seccion de la viga T fuera de la junta como «seccion cruzada de calculo».[0011] In the information below, the section of beam T outside the joint will be referred to as the "cross section of calculation".
[0012] De acuerdo con la invencion, en la junta, la seccion cruzada de la viga T prefabricada se ensancha 15 gradualmente y luego se divide en dos elementos prismaticos con una seccion cruzada rectangular y angosta, a la[0012] According to the invention, in the joint, the cross section of the prefabricated beam T gradually widens 15 and then is divided into two prismatic elements with a rectangular and narrow cross section, to the
que se hace referencia de aqul en mas como soportes S que forman un borde de contention (encofrado) del moldeado posterior. Por consiguiente, en el espacio creado, que de acuerdo con la invencion presenta la misma seccion cruzada que la «seccion cruzada de calculo», solo se proporciona el refuerzo, el cual consiste en las varillas horizontales longitudinales 1, las cuales terminan en una U, y las abrazaderas 2, que se encuentran 20 temporariamente dispuestas una contra la otra en el extremo interior de la viga T y luego, de acuerdo con su diseno, despues de que la viga haya sido ubicada in situ en la columna C, seran colocadas alrededor de las varillas longitudinales horizontales 1 de la viga T y 3 de la columna C, en la position predefinida para las mismas en la etapa del diseno estructural de hormigon armado.which is referred to here more as S supports that form a contention edge (formwork) of the subsequent molding. Therefore, in the space created, which according to the invention has the same cross section as the "cross section of calculation", only the reinforcement is provided, which consists of the longitudinal horizontal rods 1, which end in a U , and the clamps 2, which are temporarily disposed against each other at the inner end of the beam T and then, according to its design, after the beam has been located in situ in column C, will be placed around the horizontal longitudinal rods 1 of beam T and 3 of column C, in the position preset for them at the stage of the structural design of reinforced concrete.
25 [0013] La dimension en la longitud del compartimento L depende del diametro del refuerzo escogido (O),[0013] The dimension in the length of the compartment L depends on the diameter of the reinforcement chosen (O),
como se ilustra en la Tabla 1 proporcionada abajo.as illustrated in Table 1 provided below.
2. PORCION PREFABRICADA CON LA COLUMNA2. PORTION PREFABRICATED WITH THE COLUMN
30 [0014] En la columna C, en la posicion donde la viga T descansa, hay un refuerzo de continuidad que[0014] In column C, in the position where beam T rests, there is a continuity reinforcement that
consiste en varillas 3 dobladas para formar una U que presentan el mismo diametro y posicion que las varillas 1 que se proyectan desde la viga T pero traducidas en forma horizontal en una direction lateral con respecto a esta ultima, en la medida suficiente para permitir la interpenetration de este refuerzo 3 de la columna C con el refuerzo 1 de la viga T, con las debidas tolerancias de construction, tal como se ilustra en la Figura 1. Las varillas 3 se doblan para 35 formar una U que se proyecta desde la columna C y se extiende en longitud por un tramo LU desde los estrados de la columna C, tal como se define en la Tabla 1.It consists of bent rods 3 to form a U that have the same diameter and position as the rods 1 that project from the beam T but translated horizontally in a lateral direction with respect to the latter, to the extent sufficient to allow interpenetration of this reinforcement 3 of column C with reinforcement 1 of beam T, with the proper construction tolerances, as illustrated in Figure 1. The rods 3 are bent to form a U that projects from column C and extends in length along a section LU from the stands of column C, as defined in Table 1.
TABLA 1TABLE 1
- O OR
- L1 L = L1+250 mm LU = L1+125 mm L1 L = L1 + 250 mm LU = L1 + 125 mm
- mm mm
- mm mm
- mm mm
- mm mm
- 20 twenty
- 540 790 665 540 790 665
- 22 22
- 590 840 715 590 840 715
- 25 25
- 670 920 795 670 920 795
- 28 28
- 830 1080 955 830 1080 955
- 30 30
- 890 1140 1015 890 1140 1015
- 32 32
- 950 1200 1075 950 1200 1075
40 Las dimensiones proporcionadas son validas para el hormigon de juntas con f'c = 49 MPa.40 The dimensions provided are valid for joint concrete with f'c = 49 MPa.
[0015] En la tabla:[0015] In the table:
LU es la extension de las varillas (o barras) 1 o 3 fuera de la columna C o la viga T;LU is the extension of the rods (or bars) 1 or 3 outside of column C or beam T;
45 L1 es la longitud de interpenetracion de las varillas (o barras) 1 y 3; y45 L1 is the interpenetration length of the rods (or bars) 1 and 3; Y
L es la longitud del compartimento que contiene el refuerzo de la junta a moldear in situ.L is the length of the compartment containing the reinforcement of the joint to be molded in situ.
[0016] Para obtener las dimensiones con diferentes valores de fuerza es necesario multiplicar L1 por la relation de 7/sqrt(f'c) y actualizar L y LU de manera acorde.[0016] To obtain the dimensions with different force values it is necessary to multiply L1 by the ratio of 7 / sqrt (f'c) and update L and LU accordingly.
[0017] La columna C, de acuerdo con esta invencion, tambien comprende un medio de soporte temporario para la viga prefabricada T durante la instalacion.[0017] Column C, in accordance with this invention, also comprises a temporary support means for the prefabricated beam T during installation.
[0018] En la realization preferida que se describe en este documento, dichos medios de soporte estan 5 constituidos, exclusivamente a tltulo de ejemplo, por un molde de voladizo en M corto con la columna C, en cuyo[0018] In the preferred embodiment described herein, said support means are constituted, exclusively by way of example, by a short M overhang mold with column C, in which
voladizo descansan los soportes S de la viga T.cantilever rest the supports S of the T beam.
3. PORCION QUE PUEDE COMPLETARSE IN SITU3. PORTION THAT CAN BE COMPLETED IN SITU
10 [0019] Una vez que la viga T ha sido dispuesta en su posicion final, sobre el medio de soporte provisorio[0019] Once the beam T has been placed in its final position, on the temporary support means
constituido por el voladizo M de arriba, las abrazaderas 2 del refuerzo se traducen a la posicion prevista para los mismos en el diseno estructural.constituted by the cantilever M above, the braces 2 of the reinforcement are translated to the position provided for them in the structural design.
[0020] De acuerdo con la invencion, la longitud de dicho voladizo M es aquella que permite a los operadores 15 obtener acceso al compartimento entre los soportes S tambien desde abajo, a fin de facilitar a los operadores el[0020] According to the invention, the length of said cantilever M is that which allows the operators 15 to access the compartment between the supports S also from below, in order to facilitate the operators the
posicionamiento de las abrazaderas 2 a lo largo de dicho refuerzos 1 y 3.positioning of the clamps 2 along said reinforcements 1 and 3.
[0021] Una vez que se cierre la parte inferior del compartimento, limitada a lo que son los refuerzos 1 y 3 y las abrazaderas correspondientes 2 de la junta, se ancla un encofrado provisional a los soportes S.[0021] Once the lower part of the compartment is closed, limited to what are the reinforcements 1 and 3 and the corresponding clamps 2 of the joint, a provisional formwork is anchored to the supports S.
20twenty
[0022] A partir de ahl se completa el moldeado con hormigon autonivelante de retraction compensada, compuesto por un agregado de un tamano de grano maximo de 10 mm, preferiblemente reforzado con fibra en el porcentaje de 0,5 vol%, cuya fuerza caracterlstica es igual o superior a 1,65 veces la fuerza caracterlstica del hormigon que se utiliza en la prefabricacion de la viga.[0022] From here, the molding with self-leveling concrete of compensated retraction is completed, consisting of an aggregate of a maximum grain size of 10 mm, preferably reinforced with fiber in the percentage of 0.5 vol%, whose characteristic strength is equal to or greater than 1.65 times the characteristic strength of the concrete used in the prefabrication of the beam.
2525
Claims (8)
- 0 0
- L1 L = L1+250 mm LU = L1+125 mm L1 L = L1 + 250 mm LU = L1 + 125 mm
- mm mm
- mm mm
- mm mm
- mm mm
- 20 twenty
- 540 790 665 540 790 665
- 22 22
- 590 840 715 590 840 715
- 25 25
- 670 920 795 670 920 795
- 28 28
- 830 1080 955 830 1080 955
- 30 30
- 890 1140 1015 890 1140 1015
- 32 32
- 950 1200 1075 950 1200 1075
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM20140640 | 2014-11-04 | ||
| ITRM20140640 | 2014-11-04 | ||
| PCT/IB2015/058518 WO2016071847A1 (en) | 2014-11-04 | 2015-11-04 | A joint between beam elements and column elements made of prefabricated reinforced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2677725T3 true ES2677725T3 (en) | 2018-08-06 |
Family
ID=52130695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES15808789.0T Active ES2677725T3 (en) | 2014-11-04 | 2015-11-04 | A joint between beam and column elements made of precast reinforced concrete |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3158138B1 (en) |
| EA (1) | EA032453B1 (en) |
| ES (1) | ES2677725T3 (en) |
| HU (1) | HUE039918T2 (en) |
| PL (1) | PL3158138T3 (en) |
| PT (1) | PT3158138T (en) |
| WO (1) | WO2016071847A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592759A (en) * | 2016-12-02 | 2017-04-26 | 上海理工大学 | Assembly type reinforced concrete frame beam column joint and preparation method |
| CN108532751B (en) * | 2018-05-29 | 2023-09-22 | 福州大学 | Assembled concrete beam column joint and construction method |
| CN114045928B (en) * | 2021-11-10 | 2023-02-03 | 河北工业大学 | Assembled beam column and column foundation splicing structure and construction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR708167A (en) * | 1930-12-20 | 1931-07-21 | Method and device for assembling reinforced concrete elements | |
| FR941058A (en) * | 1947-01-17 | 1948-12-31 | Method and devices for the assembly and erection of building elements | |
| AU5049493A (en) * | 1991-05-09 | 1994-01-27 | Integrated Beam Technology Pty. Ltd. | Building construction using prefabricated concrete components |
| US20060059841A1 (en) * | 2004-08-18 | 2006-03-23 | Dayton Superior Corporation Of 7777 Washington Village Drive | Reinforced concrete structure, rebar end anchor therefor and method of manufacturing |
| JP2009197560A (en) * | 2008-02-25 | 2009-09-03 | Taisei Corp | Connection structure |
| JP5656657B2 (en) * | 2011-01-14 | 2015-01-21 | 三菱重工業株式会社 | Precast concrete joint structure |
-
2015
- 2015-11-04 ES ES15808789.0T patent/ES2677725T3/en active Active
- 2015-11-04 HU HUE15808789A patent/HUE039918T2/en unknown
- 2015-11-04 WO PCT/IB2015/058518 patent/WO2016071847A1/en active Application Filing
- 2015-11-04 EP EP15808789.0A patent/EP3158138B1/en active Active
- 2015-11-04 EA EA201792208A patent/EA032453B1/en not_active IP Right Cessation
- 2015-11-04 PL PL15808789T patent/PL3158138T3/en unknown
- 2015-11-04 PT PT158087890T patent/PT3158138T/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP3158138B1 (en) | 2018-06-20 |
| HUE039918T2 (en) | 2019-02-28 |
| EA201792208A1 (en) | 2018-04-30 |
| PT3158138T (en) | 2018-07-16 |
| EA032453B1 (en) | 2019-05-31 |
| WO2016071847A1 (en) | 2016-05-12 |
| PL3158138T3 (en) | 2018-11-30 |
| EP3158138A1 (en) | 2017-04-26 |
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