WO2018185351A1 - Concertina slab with expansion and contraction joints having long useful life for bridge decks - Google Patents

Concertina slab with expansion and contraction joints having long useful life for bridge decks Download PDF

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Publication number
WO2018185351A1
WO2018185351A1 PCT/ES2017/070209 ES2017070209W WO2018185351A1 WO 2018185351 A1 WO2018185351 A1 WO 2018185351A1 ES 2017070209 W ES2017070209 W ES 2017070209W WO 2018185351 A1 WO2018185351 A1 WO 2018185351A1
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WO
WIPO (PCT)
Prior art keywords
slab
accordion
board
expansion
contraction
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PCT/ES2017/070209
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Spanish (es)
French (fr)
Inventor
Jorge Aparicio García
Original Assignee
Ingeturarte, S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Ingeturarte, S.L. filed Critical Ingeturarte, S.L.
Priority to PCT/ES2017/070209 priority Critical patent/WO2018185351A1/en
Publication of WO2018185351A1 publication Critical patent/WO2018185351A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/02—Suspension bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints

Definitions

  • the present invention relates to a slab, hereinafter called Sosa accordion, between the stirrup and the board of a bridge or between two adjacent contiguous sections of bridge board, with expansion and contraction joints of long service life, and method of absorption of expansion and contraction movements of the bridge board. It is a long-lasting alternative to the usual roadway joints between the stirrups and the bridge deck or between two adjacent contiguous stretches of bridge deck.
  • the joints between the end of the dashboard and its stirrup, or between two adjacent contiguous sections of a bridge deck, are discontinuities of the rolling pavement for any vehicle.
  • the board expands and contracts relatively with respect to the stirrups.
  • the expansion of the board is produced by the increase in temperature.
  • the contraction of the board is produced by temperature drops in addition to the effects of shrinkage, prestressing and creep.
  • the gaps in the ends of sections of boards are usually resolved with elastomeric joints, comb joints or modular joints, which are placed transversely to the longitudinal direction of the bridge (hereinafter 'usual joints').
  • the useful life of the usual meetings is usually between two and ten years, a period much shorter than the useful life of the bridge, and must be frequently replaced by the loss of integrity caused by traffic and other actions.
  • JP2006328867A teaches a similar conception of the bear, but places an expansion and contraction joint at its opposite end to the board, as in integral bridges, instead of making multiple small open joints in forced fissures in the transition slab, such as It is the case of this invention.
  • CN200980117187.0A and CN200980117187.0B have a similar conception of the transition, but with the expansion and contraction joint at its furthest end of the board, instead of making multiple small open joints in forced fissures in the slab, as is The case of this invention.
  • this accordion slab comprises:
  • At least two sheets of low elastic modulus manufactured, for example, by plastics, polymers, elastomers or similar material, with edges treated or not, and thickness preferably between 1 and 40 mm, approximately, to allow expansion movements of the board;
  • At least two molds of stiffness strips necessary for manufacturing executed for example in wood, elastomers, plastics, polymers or similar material, with treated or untreated edges, and preferably between approximately 1 -40 mm thick, molded to force the map of fissures transverse to the longitudinal direction of the road such that they can absorb the contraction movements of the bridge by means of the sum of the openings of fissures caused;
  • reinforcement reinforcement of any type indicated in the international codes in the field, made for example of steel, wood, aluminum, resin or polymer reinforced with fibers, fibers of any type, plastic etc, to sew the forced cracks properly, preferably with any type of corrugation, connectors or connectors to anchor locally to the accordion slab concrete;
  • the slab also includes, within! concrete, transverse reinforcements for the transverse distribution of forces such as reinforcement reinforcement of any kind indicated in the international codes in the field manufactured for example in steel, wood, aluminum, resin or polymer reinforced with fibers, fibers of any kind, plastic , etc.
  • This expansion and contraction joint in the form of an accordion slab provides a unique solution to solve the problems of expansion and contraction of the board, increasing durability over time, avoiding jumps and providing safety to road users.
  • This accordion slab allows the development of fissure maps in a controlled way, such that they allow the contraction of the contraction movements of the board and absorb the expansion movements of the board thanks to the adequate number of compressible thin sheets parallel to the cracking surfaces. on the back of the stirrup or on the board itself to transmit the vertical actions and behave like an accordion before the contraction and expansion actions of the board.
  • the slab can be prefabricated or executed on site through procedures indicated by international codes.
  • the slab could be executed on any material including sand, clay or a low friction coefficient with the concrete.
  • - Figure 1 shows a usual expansion joint or eiastomeric roadway in section between the stirrup (2) and the compression slab of the bridge board (3);
  • - Figure 1b illustrates a usual expansion or roadway joint comb in section between the stirrup (2) and the compression slab of the bridge board (3)
  • - Figure 1c shows a usual expansion or modular roadway joint in section between the stirrup (2) and the compression slab of the bridge board (3)
  • - Figure 2a shows the location of expansion joint (and contraction) in the accordion slab (7) located on stirrups in the section of a semi-integral stirrup! (8)
  • Semi-integral stirrup (8) means any type of bridge stirrup minus the integrated stirrup! (13).
  • - Figure 2b shows the location of the expansion joint (and contraction) in Sosa accordion (7) located on stirrups in the section of an integral stirrup (13);
  • a preferred embodiment of the accordion slab (7) of the invention comprises;
  • At least two sheets of low elastic limit such as polymer, plastic, wood, eiastomer or similar (23) arranged parallel to each other and separated SM, and which allow expansion movements (18) of the board (0), although these movements could also be partly absorbed by the terrain; • At least two molds of stiffness strips necessary for manufacturing such as polymer, plastic, wood, polymer or the like (25) arranged to force the appropriate map of parallel fissure planes (24), coinciding with the sheets (23) and separated SM, whose forced openings WK are perpendicular to the longitudinal direction of the road, and can absorb the contraction movements of! board (10) through the sum of all the fissure openings caused (Sum (WK) 19);
  • the expansion movement of the board (18) is the contraction of the accordion slab due to the compression of the polymeric, wooden, plastic, elastomeric or similar molds.
  • the contraction movement of the board (19) is the expansion of the accordion slab due to the sum of the openings of fissures caused whose characteristic width is WK and the separation between fissure planes SM.
  • the fissures of the accordion slab (7) can manifest themselves on top of the asphalt pavement (26), but they are not larger than 5mm, which is not a problem for drivers or vehicles;
  • the sheets (23) and the molds (25) can be fused one by one.
  • longitudinal reinforcements (21) comprise connectors (29).
  • the separation SM can be variable.
  • the accordion slab (7) may comprise at least one transverse reinforcement! (22) which helps the distribution of transverse forces;
  • the accordion slab (7) may comprise thereon a waterproofing sheet (27)
  • the accordion slab (7) can comprise on eila, an asphalt pavement (16), with waterproofing sheet (27) interposed or not
  • the accordion slab (7) may comprise under it a transition or approach goddess (20)
  • the accordion slab (7) may comprise under it a sliding sheet (26) for example, but not exclusively, being able to be of clay or sand;
  • the accordion slab (7) is located between the anchoring element (9) and the compression goddess (10) of the board (11); either between or on two slabs compression compression
  • the invention includes the possibility of adapting to any abutment (14) of the stirrup thanks to a triangular regrowth of the slab;
  • the invention can be executed on a well compacted backfill (15) with presence or absence of transition or approach slab (20) ( Figure 2a; Figure 2b)
  • the invention can be executed on the board itself (1) ( Figure 2c)
  • FIG. 2b shows a location of the expansion and contraction joint in the accordion slab (7 ) on stirrups in the section of an integral stirrup (13);
  • Figure 2c shows a location of the expansion and contraction joint in accordion slab (7) on the board itself in the section of a non-integral stirrup (8);
  • Figure 2d shows the location of the joint of (7) in plan; A beam board is drawn, but any other type of board (1 1) may be possible;
  • the description detailed above with reference to the drawings illustrates instead of limiting the invention.
  • the word “comprises” does not exclude the presence of other elements or stages of those contained in a claim.
  • the word “a” or “a” preceding an element or stage does not exclude the presence of a plurality of such elements or stages.
  • the mere fact that the respective dependent claims define respective additional features does not exclude a combination of additional features, which corresponds to a combination of dependent claims.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention relates to a concertina slab with expansion and contraction joints having long useful life for bridge decks. Made of structural concrete, and provided with at least two forced, transverse and separated crack planes (26), the openings of which are perpendicular to the direction of the road; at least two sheets having low elastic modulus (23) arranged on the crack planes; at least two moulds (25) for manufacturing, which force the adequate mapping of crack planes (24); at least one longitudinal reinforcement (21); and transverse strengthening reinforcements. The slab is arranged on a sheet with low coefficient of friction (28) or else on a layer of sand or clay, and the asphalt carpet is placed on top of same, with possible insertion of a waterproofing layer therebetween. The slab can be produced in situ or prefabricated.

Description

M E M O R I A D E S C R I P T I V A  DESCRIPTIVE MEMORY
LOSA ACORDEÓN CON JUNTAS DE DILATACIÓN Y CONTRACCIÓN DE LARGA VIDA ÚTIL PARA TABLERO DE PUENTES ACCORDION Slab WITH EXTENSION JOINTS AND CONTRACTION LONG LIFE USED FOR BRIDGE BOARD
SECTOR DE LA TÉCNICA SECTOR OF THE TECHNIQUE
La presente invención se refiere a una losa, en adelante llamada Sosa acordeón, entre el estribo y ei tablero de un puente o entre dos tramos contiguos independientes de tablero de un puente, con juntas de expansión y contracción de iarga vida útil, y método de absorción de los movimientos de expansión y contracción del tablero de un puente. Es una alternativa de larga vida útil para las juntas de calzada habituales entre los estribos y el tablero de puentes o entre dos tramos contiguos independientes de tablero de un puente.  The present invention relates to a slab, hereinafter called Sosa accordion, between the stirrup and the board of a bridge or between two adjacent contiguous sections of bridge board, with expansion and contraction joints of long service life, and method of absorption of expansion and contraction movements of the bridge board. It is a long-lasting alternative to the usual roadway joints between the stirrups and the bridge deck or between two adjacent contiguous stretches of bridge deck.
ESTADO DE LA TÉCNICA STATE OF THE TECHNIQUE
En cualquier puente, las juntas entre el extremo del tablero y su estribo, o entre dos tramos contiguos independientes de tablero de un puente, han sido un problema a resolver. In any bridge, the joints between the end of the board and its stirrup, or between two adjacent contiguous sections of a bridge board, have been a problem to solve.
Las juntas entre el extremo del tablero y su estribo, o entre dos tramos contiguos independientes de tablero de un puente, son discontinuidades del pavimento de rodadura para cualquier vehículo. The joints between the end of the dashboard and its stirrup, or between two adjacent contiguous sections of a bridge deck, are discontinuities of the rolling pavement for any vehicle.
El tablero se expande y contrae relativamente respecto a los estribos. The board expands and contracts relatively with respect to the stirrups.
La expansión del tablero se produce por el aumento de temperatura. The expansion of the board is produced by the increase in temperature.
La contracción del tablero se produce por las bajadas de temperatura en adición a los efectos de la retracción, el pretensado y la fluencia. Los huecos en ios extremos de tramos de tableros se sueien resolver con juntas elastoméricas, juntas en peine o juntas modulares, que se colocan transversalmente a Sa dirección longitudinal del puente (en adelante 'juntas habituales'). The contraction of the board is produced by temperature drops in addition to the effects of shrinkage, prestressing and creep. The gaps in the ends of sections of boards are usually resolved with elastomeric joints, comb joints or modular joints, which are placed transversely to the longitudinal direction of the bridge (hereinafter 'usual joints').
Estas juntas habituales se colocan entre el fina! del tablero y el espaldón del estribo en un puente no integral. These usual joints are placed between the thin! of the board and the stirrup shoulder in a non-integral bridge.
Estas juntas habituales se colocan entre tramos independientes contiguos de tablero de puente These usual joints are placed between adjacent independent sections of bridge board
Estas juntas habituales se colocan en el final de la losa de transición, que se dispone en continuidad con la losa de compresión del tablero en un extremo y en extremo contrario, adyacente al paquete de firme, en un puente integral. These usual joints are placed at the end of the transition slab, which is arranged in continuity with the slab compression slab at one end and at the opposite end, adjacent to the firm package, on an integral bridge.
La vida útil de las juntas habituales se suele encontrar entre los dos y los diez años, un periodo muy inferior a la vida útil del puente, y debe ser repuesta frecuentemente por Sa pérdida de integridad provocada por el tráfico y el resto de acciones. The useful life of the usual meetings is usually between two and ten years, a period much shorter than the useful life of the bridge, and must be frequently replaced by the loss of integrity caused by traffic and other actions.
Las juntas habituales permiten el paso del agua a los estribos y pilas, pudiendo impactar negativamente a la estructura del puente. The usual joints allow the passage of water to the stirrups and piles, being able to negatively impact the structure of the bridge.
Las juntas habituales son puntos de pérdida energética del vehículo por causa del impacto de dicho vehículo sobre ¡as citadas juntas. Regular meetings are points of energy loss of the vehicle due to the impact of said vehicle on the cited joints.
Las juntas habituales, combinadas o no con el esviaje de las mismas respecto de la dirección de la carretera, suponen un riesgo para los vehículos, en particular aquellos de dos ruedas. Consecuentemente, las juntas habituales son lugares de riesgo de accidentes de tráfico. The usual joints, combined or not with their deviation from the direction of the road, pose a risk to vehicles, particularly those with two wheels. Consequently, regular meetings are places of risk of traffic accidents.
Por lo que hay una necesidad de juntas más durables y que permitan una conducción continua. Hay una necesidad de impedir en lo posible la entrada de agua al estribo. So there is a need for more durable joints that allow continuous driving. There is a need to prevent water from entering the stirrup as much as possible.
También se necesita disminuir la apertura del hueco de las juntas para que la seguridad de los conductores no se vea menoscabada. JP2006328867A enseña una concepción simiiar de la !osa, pero coloca una junta de expansión y contracción en su extremo opuesto al tablero, como en los puentes integrales, en lugar de realizar múltiples juntas de pequeña apertura en fisuras forzadas en la losa de transición, como es el caso de esta invención. It is also necessary to reduce the opening of the joint gap so that the safety of the conductors is not impaired. JP2006328867A teaches a similar conception of the bear, but places an expansion and contraction joint at its opposite end to the board, as in integral bridges, instead of making multiple small open joints in forced fissures in the transition slab, such as It is the case of this invention.
CN200980117187.0A yCN200980117187.0B presentan una concepción similar de la íosa de transición, pero con la junta de expansión y contracción en su extremo más alejado del tablero, en lugar de realizar múltiples juntas de pequeña apertura en fisuras forzadas en la losa, como es el caso de esta invención. CN200980117187.0A and CN200980117187.0B have a similar conception of the transition, but with the expansion and contraction joint at its furthest end of the board, instead of making multiple small open joints in forced fissures in the slab, as is The case of this invention.
ES 201300915 (3 Octubre2013) PCT/ES2014/070747 (13 Octubre2014) son patentes antecedentes de la que se presenta. RESUMEN DE LA INVENCIÓN ES 201300915 (October 3, 2013) PCT / ES2014 / 070747 (October 13, 2014) are background patents of the one presented. SUMMARY OF THE INVENTION
Problema a resolver: conseguir una junta de expansión y contracción, de larga vida útil, entre tablero y estribo de un puente, o entre tramos independientes contiguos de tablero de un puente, tanto de nueva ejecución como para la rehabilitación de los existentes, eliminando la discontinuidad para el usuario del vehículo. Problem to solve: to achieve an expansion and contraction joint, with a long service life, between the board and stirrup of a bridge, or between contiguous independent sections of the bridge board, both for new execution and for the rehabilitation of existing ones, eliminating discontinuity for the vehicle user.
De acuerdo con la invención, estos objetivos se logran con una losa que se va a denominar losa acordeón para distinguirla de ía losa de transición o de aproximación ampliamente descrita en el estado del arte. De acuerdo con la invención, esta losa acordeón comprende: In accordance with the invention, these objectives are achieved with a slab that is to be called an accordion slab to distinguish it from the transition or approach slab widely described in the state of the art. According to the invention, this accordion slab comprises:
• cualquier tipo de hormigón estructural indicado en ios códigos internacionales en la materia para la losa acordeón; • any type of structural concrete indicated in the international codes in the field for the accordion slab;
• cualquier conexión estructural tradicional de un extremo de la losa acordeón a un tramo de tablero justificada preferentemente por los códigos internacionales en la materia. Esta conexión se puede repetir en el extremo opuesto o bien realiar. cualquier conexión estructura! del extremo de la !osa acordeón a un elemento inmovilizado frente a los desplazamientos del tablero, que puede ser un macizo de hormigón, el propio estribo, una losa de hormigón anclada o no al terreno o cualquier peso muerto, o combinación de los elementos inmovilizados conseguida por cualquier método o combinación de métodos, sito en el lado opuesto al tablero y preferentemente justificado por los códigos internacionales en la materia. • any traditional structural connection from one end of the accordion slab to a section of board preferably justified by international codes in the field. This connection can be repeated at the opposite end or made. Any connection structure! from the end of the accordion bone to an immobilized element in front of the movements of the board, which can be a concrete massif, the stirrup itself, a concrete slab anchored or not anchored to the ground or any dead weight, or combination of the immobilized elements achieved by any method or combination of methods, located on the opposite side of the board and preferably justified by international codes in the field.
al menos dos juntas para ia absorción de !a expansión y contracción del tablero de un puente  at least two joints for the absorption of the expansion and contraction of the bridge board
al menos dos planos de fisuras forzados, transversales y separados cuyas aperturas son perpendiculares a la dirección de la carretera  at least two planes of forced, transverse and separated fissures whose openings are perpendicular to the direction of the road
ai menos dos láminas de bajo módulo elástico fabricadas, por ejemplo, mediante plásticos, polímeros, elastómeros o material similar, con bordes tratados o no, y espesor preferentemente entre 1 y 40 mm, aproximadamente, para permitir los movimientos de expansión deí tablero;  at least two sheets of low elastic modulus manufactured, for example, by plastics, polymers, elastomers or similar material, with edges treated or not, and thickness preferably between 1 and 40 mm, approximately, to allow expansion movements of the board;
ai menos dos moldes de bandas de rigidez necesaria para la fabricación, ejecutadas por ejemplo en maderas, elastómeros, plásticos, polímeros o material similar, con bordes tratados o no, y de espesor preferentemente entre 1 -40 mm, aproximadamente, moldeados para forzar el mapa de fisuras transversales a la dirección longitudinal de la carretera tales que puedan absorber los movimientos de contracción del puente por medio del sumatorio de las aperturas de fisuras provocadas;  at least two molds of stiffness strips necessary for manufacturing, executed for example in wood, elastomers, plastics, polymers or similar material, with treated or untreated edges, and preferably between approximately 1 -40 mm thick, molded to force the map of fissures transverse to the longitudinal direction of the road such that they can absorb the contraction movements of the bridge by means of the sum of the openings of fissures caused;
y al menos un refuerzo longitudinal tal como un armado de refuerzo, de cualquier tipo indicado en los códigos internacionales en la materia, fabricados por ejemplo en acero, madera, aluminio, resina o polímero reforzado con fibras, fibras de cualquier tipo, plástico etc, para coser las fisuras forzadas adecuadamente, preferentemente con cualquier tipo de corruga, conectadores o conectores para anclarse localmente al hormigón de losa acordeón;  and at least one longitudinal reinforcement such as reinforcement reinforcement, of any type indicated in the international codes in the field, made for example of steel, wood, aluminum, resin or polymer reinforced with fibers, fibers of any type, plastic etc, to sew the forced cracks properly, preferably with any type of corrugation, connectors or connectors to anchor locally to the accordion slab concrete;
Preferentemente la losa comprende, además, dentro de! hormigón, refuerzos transversales para la distribución transversal de fuerzas tal como un armado de refuerzo de cualquier tipo indicado en los códigos internacionales en la materia fabricado por ejemplo en acero, madera, aluminio, resina o polímero reforzado con fibras, fibras de cualquier tipo, plástico, etc. Esta junta de expansión y contracción en forma de losa acordeón proporciona una solución singular para resolver los problemas de expansión y contracción del tablero, incrementando la durabilidad en el tiempo, evitando los saltos y aportando seguridad a los usuarios de las carreteras. Preferably the slab also includes, within! concrete, transverse reinforcements for the transverse distribution of forces such as reinforcement reinforcement of any kind indicated in the international codes in the field manufactured for example in steel, wood, aluminum, resin or polymer reinforced with fibers, fibers of any kind, plastic , etc. This expansion and contraction joint in the form of an accordion slab provides a unique solution to solve the problems of expansion and contraction of the board, increasing durability over time, avoiding jumps and providing safety to road users.
Esta losa acordeón permite desarrollar los mapas de fisuras de forma controlada, tales que permiten la contracción de los movimientos de contracción del tablero y absorbe los movimientos de expansión del tablero gracias al adecuado número de láminas delgadas compresibles paralelas a las superficies de fisuras La losa descansa sobre el trasdós del estribo o sobre el propio tablero para transmitir las acciones verticales y comportarse como un acordeón ante las acciones de contracción y expansión del tablero. This accordion slab allows the development of fissure maps in a controlled way, such that they allow the contraction of the contraction movements of the board and absorb the expansion movements of the board thanks to the adequate number of compressible thin sheets parallel to the cracking surfaces. on the back of the stirrup or on the board itself to transmit the vertical actions and behave like an accordion before the contraction and expansion actions of the board.
La losa puede ser prefabricada o ejecutada in sítu mediante procedimientos indicados por los códigos internacionales. La losa podría ejecutarse sobre cualquier material incluida la arena, la arcilla o una iámina de bajo coeficiente de rozamiento con el hormigón. The slab can be prefabricated or executed on site through procedures indicated by international codes. The slab could be executed on any material including sand, clay or a low friction coefficient with the concrete.
BREVE RESUMEN DE LOS DIBUJOS BRIEF SUMMARY OF THE DRAWINGS
La invención se entiende mejor con la ayuda de la descripción gráfica dada a modo de ejemplo e ilustrada por las figuras en las que: The invention is better understood with the help of the graphic description given by way of example and illustrated by the figures in which:
-Figura 1 a enseña una junta habitual de expansión o de calzada eiastomérica en sección entre el estribo (2) y ia losa de compresión del tablero del puente (3); -Figure 1 shows a usual expansion joint or eiastomeric roadway in section between the stirrup (2) and the compression slab of the bridge board (3);
-Figura 1 b ilustra una junta habitual de expansión o de calzada en peine en sección entre el estribo (2) y la losa de compresión del tablero del puente (3); -Figura 1c muestra una junta habitual de expansión o de calzada modular en sección entre el estribo (2) y la losa de compresión del tablero del puente (3); -Figura 2a muestra la localización de junta de expansión (y contracción) en losa acordeón (7) localizada sobre trasdós de estribo en la sección de un estribo semi- integra! (8); se entiende por estribo semi-integral (8) cualquier tipología de estribo de puente menos el estribo integra! (13). -Figura 2b muestra la localización de la junta de expansión (y contracción) en Sosa acordeón (7) localizada sobre trasdós de estribo en la sección de un estribo integral (13); -Figure 1b illustrates a usual expansion or roadway joint comb in section between the stirrup (2) and the compression slab of the bridge board (3); -Figure 1c shows a usual expansion or modular roadway joint in section between the stirrup (2) and the compression slab of the bridge board (3); -Figure 2a shows the location of expansion joint (and contraction) in the accordion slab (7) located on stirrups in the section of a semi-integral stirrup! (8); Semi-integral stirrup (8) means any type of bridge stirrup minus the integrated stirrup! (13). -Figure 2b shows the location of the expansion joint (and contraction) in Sosa accordion (7) located on stirrups in the section of an integral stirrup (13);
-Figura 2c ilustra la localización de la nueva junta de expansión (y contracción) en losa acordeón (7) localizada sobre tablero (1 1 ) en ¡a sección de un estribo semi-integral (8); -Figure 2c illustrates the location of the new expansion joint (and contraction) in the accordion slab (7) located on board (1 1) in the section of a semi-integral stirrup (8);
-Figura 2d ilustra el ejemplo de la nueva junta de expansión (y contracción) en losa acordeón (7) localizada sobre trasdós de estribo en planta; -Figure 2d illustrates the example of the new expansion joint (and contraction) in accordion slab (7) located on floor stirrups in plan;
-Figura 3 muestra el detalle constructivo de la junta de expansión (y contracción) en la losa acordeón (7), independientemente de sobre qué elemento se disponga;  -Figure 3 shows the construction detail of the expansion joint (and contraction) in the accordion slab (7), regardless of what element is available;
REALIZACIÓN PREFERENTE La presente invención se describirá ahora más completamente, con referencia a los dibujos que se acompañan y en los que se muestra el elemento. Esta invención puede, sin embargo, realizarse de muchas formas diferentes y no debe interpretarse como limitada a las formas mencionadas en el presente documento, sino más bien, la invención se proporciona para que esta descripción minuciosa y completa, transmita completamente el alcance de la invención a ios expertos en la técnica. PREFERRED EMBODIMENT The present invention will now be described more fully, with reference to the accompanying drawings and in which the element is shown. This invention can, however, be carried out in many different ways and should not be construed as limited to the forms mentioned herein, but rather, the invention is provided for this thorough and complete description to fully convey the scope of the invention. to those skilled in the art.
Tai y como se observa en la figura 3, una realización preferente de la losa acordeón (7) de la invención comprende; Tai and as seen in Figure 3, a preferred embodiment of the accordion slab (7) of the invention comprises;
• Al menos dos planos de fisuras forzados (26), paralelos y separados cuyas aperturas son perpendiculares a la dirección de la carretera; • At least two planes of forced cracks (26), parallel and separated whose openings are perpendicular to the direction of the road;
· Al menos dos láminas de bajo límite elástico tal como de polímero, plástico, madera, eiastómero o similar(23) dispuestas paralelamente entre ellas y separadas SM, y que permiten los movimientos de expansión (18) del tablero ( 0), aunque estos movimientos podrían ser también absorbidos en parte por el terreno; • Al menos dos moldes de bandas de rigidez necesaria para la fabricación tal como de polímero, plástico, madera, polímero o similar (25) dispuestos para forzar el apropiado mapa de planos de fisuras (24) paralelos, coincidentes con las láminas (23) y separados SM, cuyas aperturas forzadas WK son perpendiculares a la dirección longitudinal de la carretera, y pueden absorber ios movimientos de contracción de! tablero (10) a través del sumatorio de todas las aperturas de fisura provocadas (Sumatorio(WK)=19); · At least two sheets of low elastic limit such as polymer, plastic, wood, eiastomer or similar (23) arranged parallel to each other and separated SM, and which allow expansion movements (18) of the board (0), although these movements could also be partly absorbed by the terrain; • At least two molds of stiffness strips necessary for manufacturing such as polymer, plastic, wood, polymer or the like (25) arranged to force the appropriate map of parallel fissure planes (24), coinciding with the sheets (23) and separated SM, whose forced openings WK are perpendicular to the longitudinal direction of the road, and can absorb the contraction movements of! board (10) through the sum of all the fissure openings caused (Sum (WK) = 19);
• Ai menos un refuerzo longitudinal (21 ), fabricados preferentemente en acero, aluminio, polímeros o resinas reforzados con fibras, o fibras que cosan adecuadamente, bien con corrugas, conectores o conectadores o bien sin ellos (29) los planos de fisuras (24) de la losa de acordeón homogéneamente (7);  • At least one longitudinal reinforcement (21), preferably made of steel, aluminum, polymers or resins reinforced with fibers, or fibers that sew properly, either with corrugations, connectors or connectors or without them (29) the fissure planes (24) ) of the accordion slab homogeneously (7);
Con esta configuración, el movimiento de expansión del tablero (18) es la contracción de la losa de acordeón debido a la compresión de ios moldes poliméricos, de madera, plásticas, elastoméricas o similares.  With this configuration, the expansion movement of the board (18) is the contraction of the accordion slab due to the compression of the polymeric, wooden, plastic, elastomeric or similar molds.
Con esta configuración, el movimiento de contracción del tablero (19) es la expansión de la losa de acordeón debido al sumatorio de las aperturas de fisuras provocadas cuyo ancho característico es WK y !a separación entre planos de fisura SM. En esta circunstancia, las fisuras de la losa de acordeón (7) pueden manifestarse en lo alto deí pavimento asfáltico (26), pero no son mayores de 5mm lo que no es un problema para los conductores ni para los vehículos; With this configuration, the contraction movement of the board (19) is the expansion of the accordion slab due to the sum of the openings of fissures caused whose characteristic width is WK and the separation between fissure planes SM. In this circumstance, the fissures of the accordion slab (7) can manifest themselves on top of the asphalt pavement (26), but they are not larger than 5mm, which is not a problem for drivers or vehicles;
En una realización preferente las láminas (23) y los moldes (25) pueden fusionarse uno a uno. In a preferred embodiment the sheets (23) and the molds (25) can be fused one by one.
En una realización preferente los refuerzos longitudinales (21 ) comprenden conectadores (29). In a preferred embodiment the longitudinal reinforcements (21) comprise connectors (29).
La separación SM puede ser variable. The separation SM can be variable.
En una realización preferente la losa acordeón (7) puede comprender al menos un refuerzo transversa! (22) que ayuda a la distribución de las fuerzas transversales; In a preferred embodiment the accordion slab (7) may comprise at least one transverse reinforcement! (22) which helps the distribution of transverse forces;
En una realización preferente, la losa acordeón (7) puede comprender sobre la misma una lámina impermeabilizante (27) En una realización preferente ia losa acordeón (7) puede comprender sobre eila, un pavimento asfáltico (16), con lámina impermeabilizante (27) interpuesta o no In a preferred embodiment, the accordion slab (7) may comprise thereon a waterproofing sheet (27) In a preferred embodiment, the accordion slab (7) can comprise on eila, an asphalt pavement (16), with waterproofing sheet (27) interposed or not
En una realización preferente la losa acordeón (7) puede comprender bajo ella una iosa de transición o de aproximación (20) En una realización preferente ia losa acordeón (7) puede comprender bajo la misma una lámina deslizante (26) por ejemplo, pero no exclusivamente, pudiendo ser de de arcilla o arena; In a preferred embodiment the accordion slab (7) may comprise under it a transition or approach goddess (20) In a preferred embodiment the accordion slab (7) may comprise under it a sliding sheet (26) for example, but not exclusively, being able to be of clay or sand;
La losa de acordeón (7) se localiza entre el elemento de anclaje (9) y la iosa de compresión (10) del tablero (11 ); o bien entre o sobre dos losas de compresión dei tabíero The accordion slab (7) is located between the anchoring element (9) and the compression goddess (10) of the board (11); either between or on two slabs compression compression
En el interior de ía ¡osa de acordeón (7), transversaímente a ia dirección del tráfico se colocan las juntas que absorben las expansiones y contracciones (12) deí tablero (1 1 ); Inside the accordion (7), transverse to the direction of the traffic are placed the joints that absorb the expansions and contractions (12) of the board (1 1);
La invención incluye la posibilidad de adaptarse a cualquier esviaje (14) del estribo gracias a un recrecido triangular de la losa; La invención puede ejecutarse sobre un relleno de trasdós bien compactado (15) con presencia o ausencia de losa transición o aproximación (20) (Figura 2a; Figura 2b) The invention includes the possibility of adapting to any abutment (14) of the stirrup thanks to a triangular regrowth of the slab; The invention can be executed on a well compacted backfill (15) with presence or absence of transition or approach slab (20) (Figure 2a; Figure 2b)
La invención puede ejecutarse sobre el propio tablero ( 1) (Figura 2c) The invention can be executed on the board itself (1) (Figure 2c)
Eí plano fijo (17) sin movimientos se localiza en eí límite del anclaje (9) con las juntas de expansión y contracción dispuestas en la losa acordeón (7) Figura 2b muestra una localización de la junta de expansión y contracción en losa acordeón (7) sobre trasdós de estribo en la sección de un estribo integral (13); The fixed plane (17) without movements is located in the limit of the anchorage (9) with the expansion and contraction joints arranged in the accordion slab (7) Figure 2b shows a location of the expansion and contraction joint in the accordion slab (7 ) on stirrups in the section of an integral stirrup (13);
Figura 2c muestra una localización de la junta de expansión y contracción en losa acordeón (7) sobre el propio tablero en la sección de un estribo no integral (8); Figure 2c shows a location of the expansion and contraction joint in accordion slab (7) on the board itself in the section of a non-integral stirrup (8);
Figura 2d muestra la localización de ia junta de (7) en planta; Se dibuja un tablero de vigas, pero cualquier otro tipo de tablero (1 1 ) puede ser posible; La descripción detallada anteriormente con referencia a los dibujos ilustra en lugar de limitar la invención. Existen numerosas alternativas, que caen dentro del alcance de las reivindicaciones adjuntas. La palabra "comprende" no excluye la presencia de otros elementos o etapas de los que figuran en una reivindicación. La palabra "un" o "una" precediendo a un elemento o etapa no excluye la presencia de una pluralidad de tales elementos o etapas. El mero hecho de que las reivindicaciones dependientes respectivas definen respectivas características adicionales, no excluye una combinación de características adicionales, que corresponde a una combinación de reivindicaciones dependientes. Figure 2d shows the location of the joint of (7) in plan; A beam board is drawn, but any other type of board (1 1) may be possible; The description detailed above with reference to the drawings illustrates instead of limiting the invention. There are numerous alternatives, which fall within the scope of the appended claims. The word "comprises" does not exclude the presence of other elements or stages of those contained in a claim. The word "a" or "a" preceding an element or stage does not exclude the presence of a plurality of such elements or stages. The mere fact that the respective dependent claims define respective additional features does not exclude a combination of additional features, which corresponds to a combination of dependent claims.

Claims

R E I V I N D I C A C I O N E S
1. Losa acordeón para absorción de los movimientos de expansión y contracción del tablero de un puente apta para ser situada entre el estribo y e! tablero de un puente, o entre o sobre dos tramos contiguos independientes de tabíero de un puente, descansando dicha losa acordeón sobre el terreno del trasdós del estribo fuertemente compactado, o sobre el propio tablero, para resistir las acciones verticales, y dando continuidad a la carretera que comprende: 1. Accordion slab to absorb the expansion and contraction movements of the board of a bridge suitable to be placed between the stirrup and e! board of a bridge, or between or on two adjacent contiguous sections of a bridge's partition, said accordion slab resting on the ground of the strongly compacted stirrup backstop, or on the board itself, to resist vertical actions, and giving continuity to the road that includes:
a. cualquier tipo de hormigón estructural  to. any type of structural concrete
b. cualquier conexión estructural de un lado de la losa de acordeón con el tablero;  b. any structural connection of one side of the accordion slab with the board;
c. cualquier conexión de un anclaje con el lado opuesto de la losa de acordeón, pudiendo ser ese anclaje; un macizo de hormigón, el propio estribo, otro tramo de tablero contiguo independiente, una losa de hormigón anclada o no al terreno o cualquier combinación de los elementos antedichos d. al menos dos juntas para !a absorción de la expansión y contracción del tablero de un puente,  C. any connection of an anchor with the opposite side of the accordion slab, which may be that anchor; a concrete massif, the stirrup itself, another section of independent adjoining board, a slab of concrete anchored or not anchored to the ground or any combination of the aforementioned elements d. at least two joints to absorb the expansion and contraction of the bridge board,
caracterizada porque además comprende: characterized in that it also includes:
e. al menos dos planos de fisuras forzados (26), transversales y separados cuyas aperturas son perpendiculares a la dirección de la carretera; f. al menos dos láminas de bajo módulo elástico (23) dispuestas en los planos de fisuras que permitan absorber la expansión del tablero.  and. at least two planes of forced cracks (26), transverse and separated whose openings are perpendicular to the direction of the road; F. at least two sheets of low elastic modulus (23) arranged in the fissure planes that allow to absorb the expansion of the board.
g. al menos dos moldes de bandas de rigidez necesaria para la fabricación (25) coincidentes o no con las láminas (23), tales que fuercen el adecuado mapeo de pianos de fisuras (24) perpendiculares a la dirección longitudinal de la carretera que puedan absorber los movimientos de contracción y expansión del tablero a través del sumatorio de las aperturas o cierres controlados de fisuras milimétricas  g. at least two molds of rigidity bands necessary for manufacturing (25) coinciding or not with the sheets (23), such that they force the proper mapping of fissure pianos (24) perpendicular to the longitudinal direction of the road that can absorb the contraction and expansion movements of the board through the sum of the openings or controlled closures of millimeter fissures
h. y al menos un refuerzo longitudinal (21 ) que cosa adecuadamente, bien con corrugas, conectores o conectadores o bien sin ellos, las fisuras forzadas del tablero y las conexiones a ambos lados de la losa acordeón h. and at least one longitudinal reinforcement (21) that sews properly, either with corrugations, connectors or connectors or without them, the forced cracks of the board and the connections on both sides of the accordion slab
2. Losa acordeón según reivindicación 1 caracterizada porque comprende dentro del hormigón refuerzos transversales en acero, aluminio, polímeros o resinas reforzadas con fibras, o fibras, para la distribución transversal de fuerzas. 2. Accordion slab according to claim 1 characterized in that it comprises within the concrete transverse reinforcements in steel, aluminum, polymers or resins reinforced with fibers, or fibers, for the transverse distribution of forces.
3. Losa acordeón según cualquiera de ias reivindicaciones anteriores caracterizada porque comprende un pavimento asfáltico dispuesto sobre !a losa acordeón, con o sin impermeabilización interpuesta 3. Accordion slab according to any of the preceding claims characterized in that it comprises an asphalt pavement arranged on the accordion slab, with or without interposed waterproofing.
4. Losa acordeón según cualquiera de ias reivindicaciones anteriores caracterizada porque dicha losa acordeón está dispuesta sobre una lámina de bajo coeficiente de rozamiento con e! hormigón (28), o una capa de arena o arcilla. 4. Accordion slab according to any of the preceding claims characterized in that said accordion slab is arranged on a sheet of low coefficient of friction with e! concrete (28), or a layer of sand or clay.
5. Método de fabricación de ía losa acordeón según cualquiera de las reivindicaciones 1-4 caracterizado porque dicha losa acordeón es producida in situ. 5. Method of manufacturing the accordion slab according to any of claims 1-4, characterized in that said accordion slab is produced in situ.
6. Método de fabricación de la losa de acordeón según cualquiera de las reivindicaciones 1-4 caracterizado porque dicha losa acordeón es prefabricada. 6. Method of manufacturing the accordion slab according to any of claims 1-4, characterized in that said accordion slab is prefabricated.
7. Método de absorción de los movimientos de contracción y expansión de! tablero de un puente caracterizado porque comprende una etapa en que una losa acordeón, según cualquiera de las reivindicaciones 1 -4, absorbe los movimientos de contracción y expansión del tablero mediante el sumatorio de varias aperturas controladas o cierres controlados de fisuras forzadas (26) y cosidas mediante refuerzo longitudinal (21), con o sin corrugas, conectores o conectadores, en la losa acordeón. 7. Method of absorption of contraction and expansion movements of! bridge board characterized in that it comprises a stage in which an accordion slab, according to any of claims 1 -4, absorbs the contraction and expansion movements of the board by means of the sum of several controlled openings or controlled closures of forced fissures (26) and sewn by means of longitudinal reinforcement (21), with or without corrugations, connectors or connectors, on the accordion slab.
PCT/ES2017/070209 2017-04-06 2017-04-06 Concertina slab with expansion and contraction joints having long useful life for bridge decks WO2018185351A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195769A (en) * 2020-09-01 2021-01-08 南京交通职业技术学院 Construction method for no height difference of asphalt surface layer at bridge expansion joint
CN113005879A (en) * 2021-03-03 2021-06-22 顾轩波 Highway bridge plate with prevent bumping car function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316574A (en) * 1965-07-28 1967-05-02 Pare Robert Lee Road expansion joint
FR2717512A1 (en) * 1994-03-21 1995-09-22 Chapuis Philippe Leafed expansion joint for constructive works including roads
WO1999011867A1 (en) * 1997-08-28 1999-03-11 Rsag Reparatur- Und Sanierungstechnik Ag Connecting structure for building elements and process for producing said connecting structure
ES2534230A1 (en) * 2013-10-18 2015-04-20 Ingeturarte Sl Transition slab between the abutment and the deck of a bridge with expansion and contraction joints having a long service life, and methods for absorbing the expansion and contraction movements of the deck of a bridge
US20160108587A1 (en) * 2013-02-19 2016-04-21 Technische Universität Wien Roadway joint device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316574A (en) * 1965-07-28 1967-05-02 Pare Robert Lee Road expansion joint
FR2717512A1 (en) * 1994-03-21 1995-09-22 Chapuis Philippe Leafed expansion joint for constructive works including roads
WO1999011867A1 (en) * 1997-08-28 1999-03-11 Rsag Reparatur- Und Sanierungstechnik Ag Connecting structure for building elements and process for producing said connecting structure
US20160108587A1 (en) * 2013-02-19 2016-04-21 Technische Universität Wien Roadway joint device
ES2534230A1 (en) * 2013-10-18 2015-04-20 Ingeturarte Sl Transition slab between the abutment and the deck of a bridge with expansion and contraction joints having a long service life, and methods for absorbing the expansion and contraction movements of the deck of a bridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195769A (en) * 2020-09-01 2021-01-08 南京交通职业技术学院 Construction method for no height difference of asphalt surface layer at bridge expansion joint
CN113005879A (en) * 2021-03-03 2021-06-22 顾轩波 Highway bridge plate with prevent bumping car function
CN113005879B (en) * 2021-03-03 2021-11-02 顾轩波 Highway bridge plate with prevent bumping car function

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