WO2018207126A1 - Device for connecting prefabricated concrete piles - Google Patents

Device for connecting prefabricated concrete piles Download PDF

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Publication number
WO2018207126A1
WO2018207126A1 PCT/IB2018/053253 IB2018053253W WO2018207126A1 WO 2018207126 A1 WO2018207126 A1 WO 2018207126A1 IB 2018053253 W IB2018053253 W IB 2018053253W WO 2018207126 A1 WO2018207126 A1 WO 2018207126A1
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WO
WIPO (PCT)
Prior art keywords
pile
male coupling
coupling
piles
connection plate
Prior art date
Application number
PCT/IB2018/053253
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Spanish (es)
French (fr)
Inventor
Jhon Fredy PEDRAZA GARCIA
Nancy TORRES CASTELLANOS
Original Assignee
Escuela Colombiana De Ingeniería Julio Garavito
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.)
Filing date
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Application filed by Escuela Colombiana De Ingeniería Julio Garavito filed Critical Escuela Colombiana De Ingeniería Julio Garavito
Publication of WO2018207126A1 publication Critical patent/WO2018207126A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • 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

Definitions

  • the present invention relates to devices for mechanically connecting sections of columns, piles, and foundations. Particularly, it is related to devices for connecting precast concrete piles. Description of the state of the art
  • EP 2382357 B discloses a system for connecting a first concrete pile with a second concrete pile , each pile includes a metal reinforcement embedded in the concrete.
  • the system comprises two collection devices, each device is connected to a pile.
  • Each device has a support flange formed by a flat base and a peripheral surface that surrounds the flat base and a part of the end of a pile.
  • the support flange is filled with the concrete that covers the metal reinforcement.
  • the flat base are located coupling-maclio and coupling-female.
  • the male-cuppers comprise a protrusion protruding from the flat base, and a rear cavity opposite the protuberance, the cavity is coupled to a bar of the metallic reinforcement of a pile.
  • the female couplings are made up of a receiving body, which is a cylinder with a receiving cavity, and an opening longitudinally opposed to the receiving cavity coupled to a bar of the metallic reinforcement of a pile.
  • each protuberance and receiving body includes a horizontal through hole, where, when the protrusion is inserted into the cavity of the receiving body, its horizontal holes are aligned.
  • the support flange has a horizontal perforation It aligns with the horizontal holes.
  • EP 2382357 BL also discloses that the coupling devices are secured with pins, where each pin crosses and secures the support flange, a receiving body and a protuberance.
  • the GB document 2115467 A discloses a joining device for connecting two concrete piles.
  • the apparatus comprises a male joint part connected to a first pile and a female union part connected to a second pile.
  • Each joining part is made up of a rectangular structure with four side walls, where each wall has two open holes at one end of the structure.
  • each rectangular structure includes a base plate connected to one end of a pile and to the side walls.
  • the apparatus includes interconnecting means that are coupled to the holes in the side walls.
  • GB 21 15467 A discloses a pin secured to the base plate of the male joint part, and a hole located in the base plate of the female joint part, where the pin is inserted into the hole when the piles
  • the present invention corresponds to a device for connecting two prefabricated piles, each pile with one end.
  • the device comprises a male coupling with a first connection plate connected to the end of the first pile and a first vertical plate that extends from the first connection plate and forms a closed surface.
  • the device has a female coupling connected to a male coupling, the female coupling has a second connection plate connected to the end of the second pile; and has a receptacle located on the second connection plate.
  • the receptacle is formed by a second vertical plate that forms a closed surface; where, the vertical plates of the male coupling and the female coupling have a lateral perforation; and a fixing means that connects the lateral perforations of the male coupling with the lateral perforations of the female coupling.
  • the device of the present invention makes it possible to connect driven piles mechanically, without using welded joints on site, and quickly, without using specialized personnel.
  • FIG. i corresponds to an isometric view of an embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling having vertical plates that form a closed surface of circular cross-section.
  • FIG. 2 corresponds to an isometric view of an embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling, of the connection plates protrude three vertical plates with perforations in their centers.
  • FIG. 3 corresponds to an isometric view of one embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling, of the main plates protrude vertical plates in their perimeter.
  • FIG. 4 corresponds to a cut of the device described in FIG. 3.
  • F1G 5 shows a mode of the device with the Sowing coupling connected to the male coupling.
  • driven piles are used to support structures in soils with low surface bearing capacity.
  • soils of a clayey nature or with low bearing capacity such as those found in the region of Bogotá, Colombia
  • the driven piles must be installed in sections, and must be joined by devices that transfer the loads from the stratum to the supporting ground, passing through all the stratigraphic profiles of the ground until finding sufficient capacity bearing, either by friction work, tip or a combination of the two.
  • the driven piles are prefabricated piles, usually of reinforced concrete internally with metal reinforcement. There may also be wooden piles, such as those used in coastal constructions, such as piers or bridges. Likewise, the piles can be made of metal, for example, structural steel, stainless steel, foundries, aluminum or FRP fiber reinforced polymers, such as resins (eg polyester, vinyl ester, epoxy, acrylic) reinforced with fibers (eg glass, aramid, carbon) ..
  • the piles can be connected to each other, by welding, by tongue and groove arrangements, or by mechanical connections.
  • the present invention consists of a device for connecting two prefabricated piles (1, 9), which can be used in the construction of deep foundations of buildings and buildings. Through the piles, the loads of the building or infrastructure work are transmitted to the ground.
  • the present invention corresponds to a device for connecting two prefabricated piles (1, 9), each pile (1, 9) with one end (2), the device comprises:
  • the female coupling (7) has a second connection plate (8) connected to the end (2) of the second pile (9); and has a receptacle (10) located on the second connection plate (8), the receptacle (10) is formed by at least a second vertical plate (5) that forms a closed surface;
  • the piles (1, 9) are piles of concrete reinforced internally with metal reinforcement.
  • the piles (1, 9) are made of concrete with strength between 40N / mm 2 and 50N / N / mm 2 , between 50N / mm 2 and 60N / mm 2 , between 60N / mm 2 and 70N / mm 2 , between 70N / mm 2 and 80N / mm 2 , or greater than 80N / mm 2 .
  • the piles (1, 9) have metal structural steel reinforcement.
  • the specifications of the metal reinforcement such as diameter of bars, number of bars, number of stirrups and spacing thereof, depends on the cross-sectional area of the pile and the connection, and maintaining the minimum longitudinal and cross-sectional amounts requested by the structural analysis. Also, the specifications of the metal reinforcement may exceed the minimum design amounts, due to safety factors.
  • the metal reinforcement must be made of corrugated steel bars (12) that comply with ASTM standards, Colombian technical standards NTC2289. Also, the metal reinforcement can be made of steel profiles in accordance with ASTM standards for structural steel, embedded in the concrete of the pile, to form a composite section
  • the piles (1, 9) are made of concrete with a resistance equal to or greater than 28N / mm 2 under compression.
  • the coating of metal reinforcements must be sufficient and controlled greater than or equal to the minimum stipulated in the NSR-10 Earthquake-resistant Construction Regulations or the regulations covering the country of the use of the invention.
  • each pile (1,9) has a length between lm and 12m, between 2m and 5m, between 5m and 6m, between 6m and 8m, between 8m and 10m, or greater than 12m.
  • each pile (1,9) has a length less than 12m. This makes it possible to transport the piles (1,9) in trucks and the need to obtain special mobility permits, which reduces logistics costs for civil works.
  • the piles (1,9) have a round, triangular, square, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the foregoing cross-sections.
  • the piles (1,9) have a triangular, rectangular, square or circular cross section.
  • the first pile (1) is located on the second pile (9).
  • the second pile (9) has a tip-shaped distal end, which, digs into the ground. For its part, the first pile (1) has at its near end! a hat
  • the cap consists of a soft stage that contacts the upper face of the first pile (1), and a head arranged above the soft stage.
  • the head is struck by the hammer of a pile driving machine, which can be mechanically or hydraulically driven.
  • the first connection plate (4) of the male coupling (3) is connected to the bars of the metal reinforcement of the first pile (1), by means of a welded joint.
  • the second connection plate (8) of the female coupling (7) is connected to the bars of the metal reinforcement of the second pile (9), by means of a welded joint.
  • the first connection plate (4) has vertical perforations (15) concentric with the bars of the metal reinforcement of the first pile (i).
  • connection plate (8) has vertical perforations (15) concentric with the bars of the metal reinforcement of the second pile (9).
  • each vertical perforation (15) serves to generate welded joints type plug.
  • a reinforcing washer (13) is connected concentrically.
  • the reinforcement washer (13) when welded to the first connection plate (4) and / or the second connection plate (8), provides a larger welding perimeter, this in order to give greater resistance to the connection.
  • connection plate (4) This avoids defects in the first connection plate (4), such as pores, cracking, thermal affectation zones or combinations thereof.
  • two reinforcement washers (13) are connected to each vertical bore (15).
  • a reinforcement washer is placed on top of the first connection plate (4) and another reinforcement washer (13) therein.
  • the welded joint is selected from chemical welding (eg epoxy reams , methacrylates and cyanoacrylates adhesives, polyurethane adhesives, among others), metallurgical welding (eg SMAW, GMAW 7 , FCAW, GTAW, and other methods accepted by the American Welding Society).
  • the welded joint is selected from SMAW, SAW, GMAW, GTAW ' and FCAW, and complies with Colombian technical standards for structural welding, for example, NTC 5401, or meets international welding standards structural structure of the American Weldmg Society, such as AWS D 1.3: 1998, AWS D 1.3 / D1.3M: 2008, or some similar.
  • the welded joint may be butt, angled, around, by points, or combinations of the foregoing.
  • the connection plates (4, 8) have a thickness between 3mm and 4mm, between 4mm and 6mm, between 6mm and 10mm, between 10mm, and 12mm, between 12mm and 15mm, or between 15mm and 20mm .
  • connection plates (4, 8) have an area between 100cm 2 and 200cm 2 , between 200cm 2 and 250cm 2 , between 20 () cm 2 and 300cm 2 , between 300cm 2 and 500cm 2 , between 500cm 2 and 900cm 2 , between 900cm 2 and 1200cm 2 , between 1200cm 2 and 2000cm 2 , between 2000cm 2 and 3000cm 2 , between 3000cm 2 and 5000cm. 2 , or between 5000cm 2 and 1000cm 2 .
  • the connecting plates (4,8) have the same cross section geometry of the piles (1,9), that is, round, triangular, square, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the above, meanwhile the closed surfaces of the male coupling (3) and the receptacle (10) of the female coupling, can have a round, triangular, square cross section, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the above, Vertical plates (5) can be rolled, folded, cast, removed, or laminated to form the closed surface of the male coupling (3) or the receptacle (10) of the female coupling.
  • the closed surfaces of the male coupling (3) and the receptacle (10) of the female coupling have a round cross-section.
  • the vertical plates (5) have at least two perforations (6).
  • the vertical plates (5) are coupled so that the perforations (6) of the receptacle (10) of the female coupling (7) are aligned with the perforations (6) of the male coupling (4), and secured with fixing means ( eleven ). This mode allows to secure the couplings (4, 7) with at least two fixing means (11).
  • the male coupling (3) includes three vertical plates (5) extending from the first connection plate (4) and forming a closed surface; and the receptacle (10) of the female coupling (7) is made up of three plates vertical (5) that make up a closed surface; where, each vertical plate (5) of the male coupling (3) and the female coupling (7) has a lateral perforation (6), and where the perforations (6) are aligned and secured with fixing means (11).
  • the vertical plates (5) of the male coupling (4) are located in a polygonal arrangement.
  • the vertical plates (5) are flat and form the sides of the polygonal arrangement. This mode facilitates the manufacture of the couplings (3, 7), therefore, bending processes are avoided, and there is a continuous welding line at the junction between the vertical plates (5) and the connection plates (4, 8 ).
  • the vertical plates (5) are bent plates that make up the vertices of the polygonal arrangement. This modality allows to increase the rigidity of the vertical plates (5), and thus, to generate a rigid joint between the couplings (3, 7). This allows the use of thinner plates than in the case of flat vertical plates (5).
  • the polygonal arrangement of the receptacle (10) has a larger circumscribed diameter than the polygonal arrangement of the male coupling (3), in order to allow the vertical plates (5) of the male coupling (3) to remain inside the receptacle (10).
  • the male coupling (3) is made up of three vertical plates (5) arranged in a triangular arrangement, which can be, equilateral, isosceles, rectum or scalene.
  • the female coupling (7) has a receptacle (10) confounded by three vertical plates (5) arranged in a triangular arrangement, which can be, equilateral, isosceles, straight or scalene.
  • the male coupling (3) is made up of four vertical plates (5) arranged in a square, rectangular or rhomboidal arrangement.
  • the female coupling (7) has a receptacle (10) formed by four vertical plates (5) arranged in a square, rectangular or rhomboidal arrangement.
  • One of the advantages of the square arrangement is that it can be attached to piles of square cross-section, which are commonly used for residential building foundations or for industrial warehouses.
  • the male coupling (3) is made up of four vertical plates (5) arranged in a pentagonal or hexagonal arrangement.
  • the female coupling (7) has a receptacle (10) formed by four vertical plates (5) arranged in a pentagonal or hexagonal arrangement.
  • the vertical plates (5) have a thickness between 3mm and 4mm, between 4mm and um, between 6mm and 10mm, between 10mm, and 12mm, between 12mm and 15mm, or between 1mm and 20mm.
  • the vertical plates (5) of the female coupling (7) have rectangular cuts extending from their lower edge towards their medial region.
  • the male coupling (3) has penmetric vertical plates (14) that extend along the first pile (1), covering its end (2). This facilitates the manufacture of the first pile (1), which can be done as follows.
  • the metal reinforcement of the pile is joined to the male coupling (3) by means of a fixed joint, such as welding.
  • the armor and the male coupling are placed on a form, which has side walls that coincide with the perirnetral plates (14).
  • concrete is poured into the formate and allowed to cure. When the concrete cures, you have the first pile (1).
  • the concrete floods a cavity that is formed by the vertical perimetral plates (14) with the first connection plate (4) of the male coupling (3).
  • This generates a monolithic union of the concrete with the metal reinforcement, the first connection plate (4) and the perimetral plates (14).
  • the female coupling (7) has vertical perimeter plates (14) that extend in the direction of the second pile (9), covering a portion of its end (2). This facilitates the manufacture of the second pile (9), which can be done in the same way as the first pile (1).
  • the vertical plates (5) and the vertical perimetral plates (14) can be coplanar and form a monolithic body. This facilitates the manufacture of the couplings (3,7), therefore, there is a smaller number of plates to be welded to the connecting plates (4, 8), and therefore, there are fewer joining operations, such as welding operations
  • the piles (1,9) have a rectangular cross section and the connecting plates (4,8) are rectangular. This mode allows the type of prismatic forms that are usually used to manufacture precast concrete piles.
  • the male coupling (3) has a first connection plate (4) connected to the end (2) of the first pile (1), rectangular in shape, and has a first vertical plate (5) which extends from the first connection plate (4) and forms a closed surface of circular cross-section, Additionally, from the first connection plate (4), vertical perimeter plates (14) protrude in and out of the first pile (1 ), where the distal edges of the vertical perimetral plates (14) rest on the connecting plate (8) of the female coupling (7). Said vertical perimeter plates (14), have lateral perforations (6) that align with the lateral perforations (6) of the vertical plates (5) of the couplings (3, 7). In this way, the device can be secured with fixing means (11) that pass through said lateral perforations (6).
  • the female coupling (7) has a second connection plate (8) connected to the end (2) of the second pile (9), rectangular in shape, and has a second vertical plate ( 5) which extends from the second connection plate (8) and forms a closed surface of circular cross-section.
  • the fixing means (1 1) are selected from the group consisting of pins, spikes, drums, screws, bolts, pin-wedges, self-locking pins or combinations of the above.
  • the fixing means (11) are pins. These can be installed easily, using common tools on site, such as mallets and hammers
  • the pins have the advantage that they are easy to clean, and that they are not easily damaged when they come into contact with concrete, compared to threaded fixing means (11), such as screws and bolts.
  • Example 1 device for connecting piles for the foundation of a civil structure.
  • a mechanism was designed and built to join two piles (1,9) to perform tension, cut and compression tests on the entire assembly. Three samples of the mechanism were manufactured, one for each test.
  • the piles (1,9) were reinforced concrete with the following characteristics:
  • each pile (1,9) for the cutting test was 345mm.
  • the length of each pile (1,9) for the flexural test was 1470mm, with a slenderness ratio between 1 1 and 12.
  • the length of each pile (1,9) for the tension test was 345mm.
  • Each device has the following specifications:
  • each vertical plate (5) has two plates joined together by welding 100mm long, 60mm wide and 9.5mm thick, with
  • each perforation (6) is located in one of the plates that make up the L-shaped vertical plates (5)
  • Cut test In the cut test the model was a simulation of a specimen formed by the piles (1, 9) connected to each other.
  • the specimen was placed horizontally for this test and had two supports 100 mm from each outer edge.
  • Flexural test was performed according to the one specified in the UNE-EN 12794: 2006 + A 1 (2006: 20) standard,
  • the coupled device was placed on two supports with a span equal to 10 times the minimum cross-sectional dimension of the pile, but not less than 3.00 m.
  • the connection device was located exactly in the middle of the opening, having on each side of the center a length equal to L / 3 + 2 times the minimum cross-sectional dimension of the pile.
  • the pile was tested by two point and identical loads applied to a third of the length of the span and in accordance with the provisions of the UNE-EN 12794: 2006 + A 1 standard.
  • the sample withstood 115 kN and it was observed that the failure was caused by fracture in the concrete.
  • the actual moment of failure was: 57.4 kN-m, which is greater than the theoretical moment of failure, of 28.0 kN-rn. Therefore, it is considered that the test complies with the minimum resistance that it must have in order to present a satisfactory behavior of the pile before requests imposed by flexion.

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Abstract

The present invention relates to a device for connecting two prefabricated piles, each pile at one end. The device comprises a male coupling element with a first connection plate connected to the end of the first pile, and a first vertical plate that extends from the first connection plate and forms a closed surface. The device also has a female coupling element connected to the male coupling element, the female coupling element having a second connection plate connected to the end of the second pile, and a receptacle located on the second connection plate. The receptacle is formed by a second vertical plate that forms a closed surface, the vertical plates of the male coupling element and the female coupling element having lateral perforations, and an attachment means that connects the lateral perforations of the male coupling element to the lateral perforations of the female coupling element. The device of the present invention allows mechanically driven piles to be connected quickly, without using joints welded in situ or needing to use specialist staff.

Description

Campo de la invención  Field of the Invention
La presente invención se relaciona con dispositivos para conectar mecánicamente tramos de columnas, pilotes, y cimentaciones. Pariiculaimente, se relaciona con dispositivos para conectar pilotes prefabricados de concreto. Descripción del estado de la técnica The present invention relates to devices for mechanically connecting sections of columns, piles, and foundations. Particularly, it is related to devices for connecting precast concrete piles. Description of the state of the art
El estado de la técnica divulga sistemas y aparatos de unión para conectar pilotes de concreto, en los documentos EP 2382357 B l y GB 2115467 A. El documento EP 2382357 B l divulga un sistema para conectar un primer pilote de concreto con un segundo pilote de concreto, cada pilote incluye una armadura metálica embebida en el concreto. El sistema comprende dos dispositivos de acopiamiento, cada dispositivo se conecta a un pilote. Cada dispositivo tiene una brida de soporte conformada por una base plana y una superficie periférica que rodea la base plana y una parte del extremo de un pilote. La brida de soporte se llena con el concreto que recubre la armadura metálica. Por su parte, en la base plana se ubican acopies-maclio y acoples- hembra. The prior art discloses joining systems and apparatus for connecting concrete piles, in EP 2382357 B and GB 2115467 A. EP 2382357 B discloses a system for connecting a first concrete pile with a second concrete pile , each pile includes a metal reinforcement embedded in the concrete. The system comprises two collection devices, each device is connected to a pile. Each device has a support flange formed by a flat base and a peripheral surface that surrounds the flat base and a part of the end of a pile. The support flange is filled with the concrete that covers the metal reinforcement. On the other hand, in the flat base are located coupling-maclio and coupling-female.
Los acopies-macho comprenden una protuberancia que sobresale de la base plana, y una cavidad trasera opuesta a la protuberancia, la cavidad se acopla a una barra de la armadura metálica de un pilote. Por su parte, los acoples-hembra se conforman de un cuerpo receptor, el cual es un cilindro con una cavidad receptora, y una abertura opuesta longitudinalmente a la cavidad receptora acoplada a una barra de la armadura metálica de un pilote. The male-cuppers comprise a protrusion protruding from the flat base, and a rear cavity opposite the protuberance, the cavity is coupled to a bar of the metallic reinforcement of a pile. On the other hand, the female couplings are made up of a receiving body, which is a cylinder with a receiving cavity, and an opening longitudinally opposed to the receiving cavity coupled to a bar of the metallic reinforcement of a pile.
Las protuberancias de ios acoples macho, se inserían en las cavidades receptoras de los acoples hembra. Cada protuberancia y cuerpo receptor incluye un agujero horizontal pasante, donde, al insertar la protuberancia en cavidad del cuerpo receptor, sus agujeros horizontales se alinean. Por su parte, la brida de soporte tiene una perforación horizontal que se alinea con los agujeros horizontales. El documento EP 2382357 B L también divulga que los dispositivos de acoplamiento se aseguran con pines, donde cada pin atraviesa y asegura la brida de soporte, un cuerpo receptor y una protuberancia. Sin embargo, se necesita realizar maquinado de piezas, lo cual representa un costo adicional tanto en mano de obra, como en equipo utilizado y tiempo de ejecución, adicionalmeníe el cilindro maquinado se encuentra soldado a tope, proveyendo un aporte de soldadura deficiente El documento GB 2115467 A divulga un aparato de unión para conectar dos pilotes de concreto. El aparato comprende una parte de unión macho conectada a un primer pilote y una parte de unión hembra conectada a un segundo pilote. Cada parte de unión se conforma de una estructura rectangular con cuatro paredes laterales, donde cada pared tiene dos agujeros abiertos en un extremo de la estructura. Además, cada estructura rectangular incluye una placa base conectada a un extremo de un pilote y a las paredes laterales. Adicionalmeníe, el aparato incluye medios de interconexión que se acoplan a los agujeros de las paredes laterales. Por otro lado, GB 21 15467 A divulga un pin asegurado a la placa base de la parte de unión macho, y un agujero localizado en la placa base de la parte de unión hembra, donde el pin se inserta en el agujero cuando se acoplan los pilotes. The protuberances of the male couplings would be inserted into the receiving cavities of the female couplings. Each protuberance and receiving body includes a horizontal through hole, where, when the protrusion is inserted into the cavity of the receiving body, its horizontal holes are aligned. On the other hand, the support flange has a horizontal perforation It aligns with the horizontal holes. EP 2382357 BL also discloses that the coupling devices are secured with pins, where each pin crosses and secures the support flange, a receiving body and a protuberance. However, it is necessary to perform machining of parts, which represents an additional cost in both labor, used equipment and runtime, additionally the machined cylinder is butt welded, providing a poor weld contribution The GB document 2115467 A discloses a joining device for connecting two concrete piles. The apparatus comprises a male joint part connected to a first pile and a female union part connected to a second pile. Each joining part is made up of a rectangular structure with four side walls, where each wall has two open holes at one end of the structure. In addition, each rectangular structure includes a base plate connected to one end of a pile and to the side walls. Additionally, the apparatus includes interconnecting means that are coupled to the holes in the side walls. On the other hand, GB 21 15467 A discloses a pin secured to the base plate of the male joint part, and a hole located in the base plate of the female joint part, where the pin is inserted into the hole when the piles
Sin embargo, presenta piezas de acople con demasiadas irregularidades que requieren costos adicionales en el proceso de fabricación, además necesitan ser soldadas durante la conexión de los tramos implicando en obra, personal calificado, y equipos especializados, además del montaje adecuado, para hacer las uniones soldadas de acuerdo con los estándares internacionales de calidad, y de acuerdo con los códigos y normas de ingeniería que aplican en cada país. However, it presents coupling parts with too many irregularities that require additional costs in the manufacturing process, they also need to be welded during the connection of the sections involving on site, qualified personnel, and specialized equipment, in addition to the appropriate assembly, to make the joints welded in accordance with international quality standards, and in accordance with the engineering codes and standards that apply in each country.
En conclusión, no se encuentra, en el estado de la técnica un dispositivo o mecanismo que sea simple en su fabricación, e instalación, y que, permita una conexión rígida y segura de dos pilotes hincados coimeales. In conclusion, a device or mechanism is not found in the state of the art that is simple in its manufacture, and installation, and that allows a rigid and secure connection of two coimeal driven piles.
Breve descripción de la invención La presente invención corresponde a un dispositivo para conectar dos pilotes prefabricados, cada pilote con un extremo. El dispositivo comprende un acople macho con una primera placa de conexión conectada al extremo del primer pilote y una primera placa vertical que se extiende desde la primera placa de conexión y conforma una superficie cerrada. Además, el dispositivo tiene un acopie hembra conectado a3 acopie macho, el acople hembra tiene una segunda placa de conexión conectada al extremo del segundo pilote; y tiene un receptáculo localizado en la segunda placa de conexión. Por su parte, e3 receptáculo está conformado por una segunda placa vertical que conforma una superficie cerrada; donde, las placas verticales del acople macho y el acople hembra tienen una perforación lateral; y un medio de fijación que conecta las perforaciones laterales del acople macho con las perforaciones laterales del acople hembra. Brief Description of the Invention The present invention corresponds to a device for connecting two prefabricated piles, each pile with one end. The device comprises a male coupling with a first connection plate connected to the end of the first pile and a first vertical plate that extends from the first connection plate and forms a closed surface. In addition, the device has a female coupling connected to a male coupling, the female coupling has a second connection plate connected to the end of the second pile; and has a receptacle located on the second connection plate. On the other hand, the receptacle is formed by a second vertical plate that forms a closed surface; where, the vertical plates of the male coupling and the female coupling have a lateral perforation; and a fixing means that connects the lateral perforations of the male coupling with the lateral perforations of the female coupling.
El dispositivo de la presente invención permite conectar pilotes hincados de manera mecánica, sin utilizar uniones soldadas en sitio, y de manera rápida, sin necesidad de utilizar personal especializado . The device of the present invention makes it possible to connect driven piles mechanically, without using welded joints on site, and quickly, without using specialized personnel.
Breve descripción de las figuras Brief description of the figures
La FIG. i corresponde a una vista en isométrico de una modalidad de un dispositivo para conectar dos pilotes prefabricados, con un acople macho y un acople hembra que tiene placas verticales que conforman una superficie cerrada de sección transversal circular. FIG. i corresponds to an isometric view of an embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling having vertical plates that form a closed surface of circular cross-section.
La FIG. 2 corresponde a una vista en isométrico de una modalidad de un dispositivo para conectar dos pilotes prefabricados, con un acople macho y un acople hembra, de las placas de conexión sobresalen tres placas verticales con perforaciones en sus centros. FIG. 2 corresponds to an isometric view of an embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling, of the connection plates protrude three vertical plates with perforations in their centers.
La FIG. 3 corresponde a una vista en isométrico de una modalidad de un dispositivo para conectar dos pilotes prefabricados, con un acople macho y un acople hembra, de las placas principales sobresalen placas verticales en su perímetro. FIG. 3 corresponds to an isometric view of one embodiment of a device for connecting two prefabricated piles, with a male coupling and a female coupling, of the main plates protrude vertical plates in their perimeter.
La FIG. 4 corresponde a un corte del dispositivo descrito en la FIG. 3. La F1G. 5 muestra una modalidad del dispositivo con el acople Siembra conectado ai acople macho. FIG. 4 corresponds to a cut of the device described in FIG. 3. F1G 5 shows a mode of the device with the Sowing coupling connected to the male coupling.
Descripción detallada Detailed description
En el campo de la ingeniería estructural, los pilotes hincados se utilizan para soportar estructuras en suelos con baja capacidad portante superficial. En algunos suelos de naturaleza arcillosa o con baja capacidad portante, tales como los encontrados en la región de Bogotá, Colombia, es necesario que las cimentaciones profundas, como las que utilizan pilotes hincados, lleguen hasta estratos portantes que están a una profundidades mayores a 20m de ia superficie del terreno, por lo tanto, ios pilotes hincados se deben instalar por secciones, y deben unirse por dispositivos que transfieren las cargas desde la estractura hasta el suelo portante, pasando por todos los perfiles e stratigráficos del suelo hasta encontrar la suficiente capacidad portante, bien sea por trabajo a fricción, de punta o de una combinación de las dos. In the field of structural engineering, driven piles are used to support structures in soils with low surface bearing capacity. In some soils of a clayey nature or with low bearing capacity, such as those found in the region of Bogotá, Colombia, it is necessary that deep foundations, such as those that use driven piles, reach up to supporting strata that are at depths greater than 20m From the surface of the land, therefore, the driven piles must be installed in sections, and must be joined by devices that transfer the loads from the stratum to the supporting ground, passing through all the stratigraphic profiles of the ground until finding sufficient capacity bearing, either by friction work, tip or a combination of the two.
Los pilotes hincados son pilotes prefabricados, generalmente de concreto reforzado internamente con armadura metálica. También pueden haber pilotes de madera, como los utilizados en construcciones costeras, tales como, muelles o puentes. Así mismo, los pilotes pueden ser de metal, por ejemplo, de acero estructural, acero inoxidable, fundiciones, aluminio o de polímeros reforzados con fibra FRP, tales como resinas (v.g. poliéster, vinil éster, epóxicas, acrílicas) reforzadas con fibras (v.g. de vidrio, aramida, carbono).. Los pilotes hincados pueden conectarse entre sí, mediante soldadura, mediante arreglos machihembrados, o mediante conexiones mecánicas. The driven piles are prefabricated piles, usually of reinforced concrete internally with metal reinforcement. There may also be wooden piles, such as those used in coastal constructions, such as piers or bridges. Likewise, the piles can be made of metal, for example, structural steel, stainless steel, foundries, aluminum or FRP fiber reinforced polymers, such as resins (eg polyester, vinyl ester, epoxy, acrylic) reinforced with fibers (eg glass, aramid, carbon) .. The piles can be connected to each other, by welding, by tongue and groove arrangements, or by mechanical connections.
Una de las desventajas de la soldadura, es que se necesita en obra, personal calificado, y equipos especializados, además del montaje adecuado, para hacer las uniones soldadas de acuerdo con los estándares internacionales de calidad, y de acuerdo con los códigos y normas de ingeniería que aplican en cada país. Por el contrario, las conexiones mecánicas con conexión rápida, por ejemplo, mediante pines, son prefabricadas, y permiten un montaje rápido y seguro, sin necesidad de utilizar personal especializado. La presente invención consiste en un dispositivo para conectar dos pilotes prefabricados (1, 9), los cuales se pueden usar en la construcción de cimentaciones profundas de edificios y edificaciones. A través de los pilotes se transmiten al suelo las cargas propias de la edificación u obra de infraestructura. La presente invención corresponde a un dispositivo para conectar dos pilotes prefabricados (1, 9), cada pilote (1, 9) con un extremo (2), el dispositivo comprende: One of the disadvantages of welding, is that it requires on site, qualified personnel, and specialized equipment, in addition to the appropriate assembly, to make the welded joints in accordance with international quality standards, and in accordance with the codes and standards of engineering that apply in each country. On the contrary, mechanical connections with fast connection, for example, by means of pins, are prefabricated, and allow a fast and safe assembly, without using specialized personnel. The present invention consists of a device for connecting two prefabricated piles (1, 9), which can be used in the construction of deep foundations of buildings and buildings. Through the piles, the loads of the building or infrastructure work are transmitted to the ground. The present invention corresponds to a device for connecting two prefabricated piles (1, 9), each pile (1, 9) with one end (2), the device comprises:
* un acople macho (3) con una primera placa de conexión (4) conectada al extremo (2) del primer pilote (1) y al menos una primera placa vertical (5) que se extiende desde la primera placa de conexión (4) y conforma una superficie cerrada: * a male coupling (3) with a first connection plate (4) connected to the end (2) of the first pile (1) and at least a first vertical plate (5) extending from the first connection plate (4) and forms a closed surface:
* un acople hembra (7) conectado al acople macho (3), el acople hembra (7) tiene una segunda placa de conexión (8) conectada al extremo (2) del segundo pilote (9); y tiene un receptáculo (10) localizado en la segunda placa de conexión (8), el receptáculo (10) está conformado por al menos una segunda placa vertical (5) que conforma una superficie cerrada; * a female coupling (7) connected to the male coupling (3), the female coupling (7) has a second connection plate (8) connected to the end (2) of the second pile (9); and has a receptacle (10) located on the second connection plate (8), the receptacle (10) is formed by at least a second vertical plate (5) that forms a closed surface;
donde, las placas verticales (5) del acopie macho (3) y el acopie hembra (7) tienen una perforación lateral (6); y where, the vertical plates (5) of the male coupling (3) and the female coupling (7) have a lateral perforation (6); Y
* un medio de fijación que conecta, las perforaciones laterales (6) del acople macho (3) con las perforaciones laterales (6) del acople hembra (7). * a fixing means that connects the lateral perforations (6) of the male coupling (3) with the lateral perforations (6) of the female coupling (7).
En una modalidad de la invención, los pilotes (1, 9) son pilotes hincados de concreto reforzado internamente con armadura metálica. In one embodiment of the invention, the piles (1, 9) are piles of concrete reinforced internally with metal reinforcement.
En una modalidad de la invención, los pilotes (1 ,9) son de concreto con resistencia entre 40N/mm2 y 50N/N/mm2, entre 50N/mm2 y 60N/mm2, entre 60N/mm2 y 70N/mm2 , entre 70N/mm2 y 80N/mm2 , o superior a 80N/mm2. In one embodiment of the invention, the piles (1, 9) are made of concrete with strength between 40N / mm 2 and 50N / N / mm 2 , between 50N / mm 2 and 60N / mm 2 , between 60N / mm 2 and 70N / mm 2 , between 70N / mm 2 and 80N / mm 2 , or greater than 80N / mm 2 .
En una modalidad de la invención, los pilotes (1 , 9) tienen armadura metálica de acero estructural. Las especificaciones de la armadura metálica, tales como diámetro de barras, cantidad de barras, número de estribos y espaciamiento de los mismo, depende de la sección transversal que tenga el pilote y la conexión, y manteniendo las cuantías mínimas longitudinales y transversales solicitadas por el análisis estructural. También, las especificaciones de la armadura metálica pueden exceder las cuantías mínimas de diseño, debido a factores de seguridad. In one embodiment of the invention, the piles (1, 9) have metal structural steel reinforcement. The specifications of the metal reinforcement, such as diameter of bars, number of bars, number of stirrups and spacing thereof, depends on the cross-sectional area of the pile and the connection, and maintaining the minimum longitudinal and cross-sectional amounts requested by the structural analysis. Also, the specifications of the metal reinforcement may exceed the minimum design amounts, due to safety factors.
La armadura metálica debe ser de barras de acero corrugadas ( 12) que cumplan con las normas ASTM, normas técnicas colombianas NTC2289. También, la armadura metálica puede ser de perfiles de acero de acuerdo con las normas ASTM para acero estructural, embebidos en el concreto del pilote, para conformar una sección compuesta The metal reinforcement must be made of corrugated steel bars (12) that comply with ASTM standards, Colombian technical standards NTC2289. Also, the metal reinforcement can be made of steel profiles in accordance with ASTM standards for structural steel, embedded in the concrete of the pile, to form a composite section
En una modalidad de la invención, los pilotes (1 , 9) son de concreto con resistencia igual o superior a 28N/mm2 a compresión. El recubrimiento de armaduras metálicas debe ser suficiente y controlado mayores o iguales a los mínimos estipulados en el Reglamento de Construcciones Sismo-resistentes NSR-10 o la normativa que cubra el país del uso de la invención. In one embodiment of the invention, the piles (1, 9) are made of concrete with a resistance equal to or greater than 28N / mm 2 under compression. The coating of metal reinforcements must be sufficient and controlled greater than or equal to the minimum stipulated in the NSR-10 Earthquake-resistant Construction Regulations or the regulations covering the country of the use of the invention.
También, deben utilizarse cementos o adiciones cementantes especiales para resistir los agentes agresivos externos que se encuentran en los suelos circundantes, con las relaciones agua cementante máximas permitidas para la protección por durabilidad. Se suele admitir que en este tipo de pilotes, una vez hincados, el concreto trabaja a 2,5N/mm2 Also, special cements or cementitious additions should be used to resist external aggressive agents found in surrounding soils, with the maximum cementitious water ratios allowed for durability protection. It is usually admitted that in this type of pile, once driven, the concrete works at 2.5N / mm 2
En una modalidad de la invención, cada pilote (1,9) tienen una longitud entre lm y 12m, entre 2m y 5m, entre 5m y 6m, entre 6m y 8m, entre 8m y 10m, o superior a 12m. In one embodiment of the invention, each pile (1,9) has a length between lm and 12m, between 2m and 5m, between 5m and 6m, between 6m and 8m, between 8m and 10m, or greater than 12m.
En una modalidad de la invención, cada pilote (1,9) tiene una longitud menor a 12m. Esto permite transportar ios pilotes (1,9) en camiones sm necesidad de obtener permisos especiales de movilidad, lo cual, disminuye costos logísticos de la obra civil. In one embodiment of the invention, each pile (1,9) has a length less than 12m. This makes it possible to transport the piles (1,9) in trucks and the need to obtain special mobility permits, which reduces logistics costs for civil works.
En una modalidad de la invención, ios pilotes (1,9) tienen una sección transversal redonda, triangular, cuadrada, rectangular, pentagonal, hexagonal, heptagonal, poligonal, elíptica, oblonga, semicircular, semielíptica, o combinaciones de las anteriores. En una modalidad de la invención, los pilotes (1,9) tiene una sección transversal triangular, rectangular, cuadrada o circular. En una modalidad de 3a invención, e3 primer pilote (1) se ubica sobre el segundo pilote (9). El segundo pilote (9) tiene un extremo distal en forma de punta, la cual, se clava en el suelo. Por su parte, el primer pilote (1 ) tiene en su extremo próxima! un sombrerete. In one embodiment of the invention, the piles (1,9) have a round, triangular, square, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the foregoing cross-sections. In one embodiment of the invention, the piles (1,9) have a triangular, rectangular, square or circular cross section. In an embodiment of the third invention, the first pile (1) is located on the second pile (9). The second pile (9) has a tip-shaped distal end, which, digs into the ground. For its part, the first pile (1) has at its near end! a hat
El sombrerete se conforma de una platina blanda que se pone en contacto con la cara superior del primer pilote (1), y de un cabezal dispuesto encima de la platina blanda. El cabezal es golpeado por el martinete de una máquina para el hincado de pilotes, la cual, puede ser de accionamiento mecánico o hidráulico. The cap consists of a soft stage that contacts the upper face of the first pile (1), and a head arranged above the soft stage. The head is struck by the hammer of a pile driving machine, which can be mechanically or hydraulically driven.
Para conectar los pilotes ( 1, 9) se enfrentan sus extremos (2), para así conectar el acopie macho (3) con el acopie hembra (7). To connect the piles (1, 9) face their ends (2), in order to connect the male coupling (3) with the female coupling (7).
En una modalidad de la invención, la primera placa de conexión (4) del acople macho (3) se conecta a las barras de la armadura metálica del primer pilote (1), mediante una unión soldada. De igual manera, la segunda placa de conexión (8) del acople hembra (7) se conecta a las barras de la armadura metálica del segundo pilote (9), mediante una unión soldada. In one embodiment of the invention, the first connection plate (4) of the male coupling (3) is connected to the bars of the metal reinforcement of the first pile (1), by means of a welded joint. Similarly, the second connection plate (8) of the female coupling (7) is connected to the bars of the metal reinforcement of the second pile (9), by means of a welded joint.
En una modalidad de la invención, la primera placa de conexión (4) tiene perforaciones verticales (15) concéntricas con las barras de la armadura metálica del primer pilote ( i). In one embodiment of the invention, the first connection plate (4) has vertical perforations (15) concentric with the bars of the metal reinforcement of the first pile (i).
De igual manera, la segunda placa de conexión (8) tiene perforaciones verticales ( 15) concéntricas con las barras de la armadura metálica del segundo pilote (9). Similarly, the second connection plate (8) has vertical perforations (15) concentric with the bars of the metal reinforcement of the second pile (9).
Lo anterior, permite que la unión soldada se haga alrededor de las barras, por ambas caras de las placas de conexión (4, 8), lo cual, genera una unión más firme que una soldadura a tope. This allows the welded joint to be made around the bars, on both sides of the connecting plates (4, 8), which generates a firmer joint than a butt weld.
De igual manera, las perforaciones verticales (15) sirven para generar uniones soldadas tipo tapón. Haciendo referencia a la FIG. 5, en una modalidad de la invención, encima de cada perforación vertical ( 15), se conecta una arandela de refuerzo (13) de manera concéntrica. La arandela de refuerzo (13) al ser soldada a la primera placa de conexión (4) y/o a la segunda placa de conexión (8), provee un perímetro mayor de soldadura, esto con el fin de darle mayor resistencia a la conexión. In the same way, the vertical perforations (15) serve to generate welded joints type plug. Referring to FIG. 5, in one embodiment of the invention, above each vertical perforation (15), a reinforcing washer (13) is connected concentrically. The reinforcement washer (13) when welded to the first connection plate (4) and / or the second connection plate (8), provides a larger welding perimeter, this in order to give greater resistance to the connection.
La mayor resistencia se logra con cordones de soldadura más grandes, que se generan con corrientes de mayor amperaje, que el amperaje máximo que puede lograrse en el caso de soldadura a tope de las barras de la armadura metálica con la primera placa de conexión (4). The greatest resistance is achieved with larger weld seams, which are generated with higher amperage currents, than the maximum amperage that can be achieved in the case of butt welding of the metal reinforcement bars with the first connection plate (4 ).
Lo anterior, evita defectos en la primera placa de conexión (4), tales como, poros, agrietamiento, zonas de afectación térmica o combinaciones de los mismos. This avoids defects in the first connection plate (4), such as pores, cracking, thermal affectation zones or combinations thereof.
En una modalidad de la invención, se conectan dos arandelas de refuerzo (13) en cada perforación vertical ( 15). Preferiblemente, se pone una arandela de refuerzo encima de la primera placa de conexión (4) y otra arandela de refuerzo (13) debajo de la misma, En una modalidad de la invención, la unión soldada se selecciona entre soldadura química (v.g. resmas epóxicas, metacnlatos y cianoacrilatos adhesivos, adhesivos de poliuretano, entre otros), soldadura metalúrgica (v.g. SMAW, GMAW7, FCAW, GTAW, y demás métodos aceptados por la American Welding Society). En una modalidad de la invención, la unión soldada se selecciona entre SMAW, SAW, GMAW, GTAW' y FCAW, y cumple con las normas técnicas colombianas de soldadura estructural, por ejemplo, la NTC 5401, o cumple con las norma internacionales de soldadura estructural de la American Weldmg Society, tales como la AWS D 1.3: 1998, AWS D 1.3/D1.3M:2008, o alguna similar. In one embodiment of the invention, two reinforcement washers (13) are connected to each vertical bore (15). Preferably, a reinforcement washer is placed on top of the first connection plate (4) and another reinforcement washer (13) therein. In one embodiment of the invention, the welded joint is selected from chemical welding (eg epoxy reams , methacrylates and cyanoacrylates adhesives, polyurethane adhesives, among others), metallurgical welding (eg SMAW, GMAW 7 , FCAW, GTAW, and other methods accepted by the American Welding Society). In one embodiment of the invention, the welded joint is selected from SMAW, SAW, GMAW, GTAW ' and FCAW, and complies with Colombian technical standards for structural welding, for example, NTC 5401, or meets international welding standards structural structure of the American Weldmg Society, such as AWS D 1.3: 1998, AWS D 1.3 / D1.3M: 2008, or some similar.
En una modalidad de la invención, la unión soldada puede ser a tope, en ángulo, alrededor, por puntos, o combinaciones de las anteriores. En una modalidad de la invención, las placas de conexión (4, 8) tienen un espesor entre 3mm y 4mm, entre 4mm y 6mm, entre 6mm y 10mm, entre 10mm, y 12mm, entre 12mm y 15mm, o entre 15mm y 20mm. En una modalidad de la invención, las placas de conexión (4, 8) tienen un área entre 100cm2 y 200cm2, entre 200cm2 y 250cm2, entre 20()cm2 y 300cm2, entre 300cm2 y 500cm2, entre 500cm2 y 900cm2, entre 900cm2 y 1200cm2, entre 1200cm2 y 2000cm2, entre 2000cm2 y 3000cm2, entre 3000cm2 y 5000cm.2, o entre 5000cm2 y 1000cm2. En una modalidad de la invención, las placas de conexión (4,8) tienen la misma geometría de la sección transversal de ios pilotes (1,9), es decir, redonda, triangular, cuadrada, rectangular, pentagonal, hexagonal, heptagonal, poligonal, elíptica, oblonga, semicircular, semieííptica, o combinaciones de las anteriores, Por su parte las superficies cerradas de del acople macho (3) y del receptáculo (10) del acople hembra, pueden tener una sección transversal redonda, triangular, cuadrada, rectangular, pentagonal, hexagonal, heptagonal, poligonal, elíptica, oblonga, semicircular, semieííptica, o combinaciones de las anteriores, Las placas verticales (5) pueden ser roladas, dobladas, fundidas, extraídas, o laminadas para formar la superficie cerrada del acople macho (3) o del receptáculo (10) del acople hembra. In one embodiment of the invention, the welded joint may be butt, angled, around, by points, or combinations of the foregoing. In one embodiment of the invention, the connection plates (4, 8) have a thickness between 3mm and 4mm, between 4mm and 6mm, between 6mm and 10mm, between 10mm, and 12mm, between 12mm and 15mm, or between 15mm and 20mm . In one embodiment of the invention, the connection plates (4, 8) have an area between 100cm 2 and 200cm 2 , between 200cm 2 and 250cm 2 , between 20 () cm 2 and 300cm 2 , between 300cm 2 and 500cm 2 , between 500cm 2 and 900cm 2 , between 900cm 2 and 1200cm 2 , between 1200cm 2 and 2000cm 2 , between 2000cm 2 and 3000cm 2 , between 3000cm 2 and 5000cm. 2 , or between 5000cm 2 and 1000cm 2 . In one embodiment of the invention, the connecting plates (4,8) have the same cross section geometry of the piles (1,9), that is, round, triangular, square, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the above, meanwhile the closed surfaces of the male coupling (3) and the receptacle (10) of the female coupling, can have a round, triangular, square cross section, rectangular, pentagonal, hexagonal, heptagonal, polygonal, elliptical, oblong, semicircular, semi-elliptical, or combinations of the above, Vertical plates (5) can be rolled, folded, cast, removed, or laminated to form the closed surface of the male coupling (3) or the receptacle (10) of the female coupling.
En una modalidad de la invención, las superficies cerradas del acople macho (3) y del receptáculo (10) del acople hembra, tienen una sección transversal redonda. Las placas verticales (5) tienen al menos dos perforaciones (6). Las placas verticales (5) se acoplan de manera que las perforaciones (6) del receptáculo (10) del acople hembra (7) se alinean con las perforaciones (6) del acople macho (4), y se aseguran con medios de fijación (11 ). Esta modalidad permite asegurar con al menos dos medios de fijación (11 ) los acoples (4, 7). In one embodiment of the invention, the closed surfaces of the male coupling (3) and the receptacle (10) of the female coupling have a round cross-section. The vertical plates (5) have at least two perforations (6). The vertical plates (5) are coupled so that the perforations (6) of the receptacle (10) of the female coupling (7) are aligned with the perforations (6) of the male coupling (4), and secured with fixing means ( eleven ). This mode allows to secure the couplings (4, 7) with at least two fixing means (11).
En una modalidad de la invención, el acople macho (3) incluye tres placas verticales (5) que se extienden desde la primera placa de conexión (4) y conforma una superficie cerrada; y el receptáculo ( 10) del acople hembra (7) está conformado por tres placas verticales (5) que conforman una superficie cerrada; donde, cada placa vertical (5) del acople macho (3) y el acople hembra (7) tiene una perforación lateral (6), y donde las perforaciones (6) se alinean y se aseguran con medios de fijación (11). Las placas verticales (5) del acople macho (4) se ubican en un arreglo poligonal . Esto, permite que el acople macho (4) tenga una forma cerrada, que en conjunto con el receptáculo (10) del acople hembra (7), evite que el primer pilote (1) gire o se desplace lateralmente respecto ai segundo pilote (9), En una modalidad de la invención, las placas verticales (5) son planas y conforman los lados del arreglo poligonal. Esta modalidad, facilita la fabricación de los acopies (3, 7), pues, se evitan procesos de doblado, y se tiene una línea continua de soldadura en la unión entre las placas verticales (5) y las placas de conexión (4, 8). En una modalidad de la invención, las placas verticales (5) son placas dobladas que conforman los vértices del arreglo poligonal. Esta modalidad, permite aumentar la rigidez de las placas verticales (5), y así, generar una unión rígida entre ios acoples (3, 7). Lo anterior, permite utilizar platinas más delgadas que en el caso de las placas verticales (5) planas. In one embodiment of the invention, the male coupling (3) includes three vertical plates (5) extending from the first connection plate (4) and forming a closed surface; and the receptacle (10) of the female coupling (7) is made up of three plates vertical (5) that make up a closed surface; where, each vertical plate (5) of the male coupling (3) and the female coupling (7) has a lateral perforation (6), and where the perforations (6) are aligned and secured with fixing means (11). The vertical plates (5) of the male coupling (4) are located in a polygonal arrangement. This allows the male coupling (4) to have a closed shape, which together with the receptacle (10) of the female coupling (7), prevents the first pile (1) from rotating or moving laterally with respect to the second pile (9) ), In one embodiment of the invention, the vertical plates (5) are flat and form the sides of the polygonal arrangement. This mode facilitates the manufacture of the couplings (3, 7), therefore, bending processes are avoided, and there is a continuous welding line at the junction between the vertical plates (5) and the connection plates (4, 8 ). In one embodiment of the invention, the vertical plates (5) are bent plates that make up the vertices of the polygonal arrangement. This modality allows to increase the rigidity of the vertical plates (5), and thus, to generate a rigid joint between the couplings (3, 7). This allows the use of thinner plates than in the case of flat vertical plates (5).
El arreglo poligonal del receptáculo (10) tiene un mayor diámetro circunscrito que el arreglo poligonal del acople macho (3), para así, permitir que las placas verticales (5) del acople macho (3) queden dentro del receptáculo (10). En una modalidad de la invención, el acople macho (3) se conforma de tres placas verticales (5) dispuestas en un arreglo triangular, que puede ser, equilátero, isósceles, recto o escaleno. The polygonal arrangement of the receptacle (10) has a larger circumscribed diameter than the polygonal arrangement of the male coupling (3), in order to allow the vertical plates (5) of the male coupling (3) to remain inside the receptacle (10). In one embodiment of the invention, the male coupling (3) is made up of three vertical plates (5) arranged in a triangular arrangement, which can be, equilateral, isosceles, rectum or scalene.
De igual manera, el acople hembra (7) tiene un receptáculo (10) confonnado por tres placas verticales (5) dispuestas en un arreglo triangular, que puede ser, equilátero, isósceles, recto o escaleno. Similarly, the female coupling (7) has a receptacle (10) confounded by three vertical plates (5) arranged in a triangular arrangement, which can be, equilateral, isosceles, straight or scalene.
Una de las ventajas del arreglo triangular, es que permite acoplarse a pilotes de sección transversal triangular, y permite usar menos placas verticales (5) para la construcción de los acoples (3, 7). Lo anterior, permite reducir costos de producción, asociados a operaciones de corte, soldadura, y por supuesto, a masa de metal necesario para la construcción de los acoples (3, 7). En una modalidad de la invención, el acople macho (3) se conforma de cuatro placas verticales (5) dispuestas en un arreglo cuadrado, rectangular o romboidal. De igual manera, el acople hembra (7) tiene un receptáculo (10) conformado por cuatro placas verticales (5) dispuestas en un arreglo cuadrado, rectangular o romboidal. Una de las ventajas del arreglo cuadrado, es que permite acoplarse a pilotes de sección transversal cuadrada, los cuales son comúnmente usados para cimentaciones de edificios residenciales o para bodegas industriales. One of the advantages of the triangular arrangement is that it allows the coupling of triangular cross-section piles, and allows the use of fewer vertical plates (5) for the construction of the couplings (3, 7). The aforementioned allows reducing production costs, associated with cutting, welding, and of course, the mass of metal necessary for the construction of the couplings (3, 7). In one embodiment of the invention, the male coupling (3) is made up of four vertical plates (5) arranged in a square, rectangular or rhomboidal arrangement. Similarly, the female coupling (7) has a receptacle (10) formed by four vertical plates (5) arranged in a square, rectangular or rhomboidal arrangement. One of the advantages of the square arrangement is that it can be attached to piles of square cross-section, which are commonly used for residential building foundations or for industrial warehouses.
En una modalidad de la invención, el acople macho (3) se conforma de cuatro placas verticales (5) dispuestas en un arreglo pentagonal o hexagonal. De igual manera, el acople hembra (7) tiene un receptáculo (10) conformado por cuatro placas verticales (5) dispuestas en un arreglo pentagonal o hexagonal. In one embodiment of the invention, the male coupling (3) is made up of four vertical plates (5) arranged in a pentagonal or hexagonal arrangement. Similarly, the female coupling (7) has a receptacle (10) formed by four vertical plates (5) arranged in a pentagonal or hexagonal arrangement.
En una modalidad de la invención, las placas verticales (5) tienen un espesor entre 3mm y 4mm, entre 4mm y ómm, entre 6mm y 10mm, entre lOmm, y 12mrn, entre 12mm y 15mm, o entre 1 mm y 20mm. In one embodiment of the invention, the vertical plates (5) have a thickness between 3mm and 4mm, between 4mm and um, between 6mm and 10mm, between 10mm, and 12mm, between 12mm and 15mm, or between 1mm and 20mm.
En una modalidad de la invención, las placas verticales (5) del acople hembra (7) tienen cortes rectangulares que se extienden desde su arista inferior hacia su región medial. In one embodiment of the invention, the vertical plates (5) of the female coupling (7) have rectangular cuts extending from their lower edge towards their medial region.
Haciendo referencia a la FÍG. 5, en una modalidad de la invención, el acople macho (3) tienen placas verticales penmetraíes (14) que se extienden en a lo largo del primer pilote (1), cubriendo su extremo (2). Esto, facilita la fabricación del primer pilote (1), el cual, puede hacerse de la siguiente manera. Referring to the FIG. 5, in one embodiment of the invention, the male coupling (3) has penmetric vertical plates (14) that extend along the first pile (1), covering its end (2). This facilitates the manufacture of the first pile (1), which can be done as follows.
Primero, se une la armadura metálica del pilote el acople macho (3) mediante una unión fija, tal como soldadura. Luego, se ponen la armadura y el acople macho en una formaleta, la cual, tiene paredes laterales que coinciden con las placas perirnetrales (14). Después, se vierte concreto en la formaieta y se deja curar. Cuando el concreto cura, se tiene el primer pilote (1). First, the metal reinforcement of the pile is joined to the male coupling (3) by means of a fixed joint, such as welding. Then, the armor and the male coupling are placed on a form, which has side walls that coincide with the perirnetral plates (14). Then, concrete is poured into the formate and allowed to cure. When the concrete cures, you have the first pile (1).
De esta manera, eí concreto inunda una cavidad que queda conforman las placas verticales perimetrales (14) con la primera placa de conexión (4) del acople macho (3). Lo anterior genera una unión monolítica del concreto con la armadura metálica, la primera placa de conexión (4) y las placas perimetrales (14). In this way, the concrete floods a cavity that is formed by the vertical perimetral plates (14) with the first connection plate (4) of the male coupling (3). This generates a monolithic union of the concrete with the metal reinforcement, the first connection plate (4) and the perimetral plates (14).
Asi mismo, haciendo referencia a la FIG. 5, en una modalidad de la invención, el acople hembra (7) tienen placas verticales perimetrales (14) que se extienden en la dirección del segundo pilote (9), cubriendo una porción de su extremo (2). Esto, facilita la fabricación del segundo pilote (9), el cual, puede hacerse de igual manera que el primer pilote (1). Haciendo referencia a la FIG. 5, en una modalidad de la invención, las placas verticales (5) y las placas verticales perimetrales (14) pueden ser coplanares y conformar un cuerpo monolítico. Esto, facilita la fabricación de los acoples (3,7), pues, se tiene un menor número de placas para soldar a las placas de conexión (4, 8), y por lo tanto, se tienen menos operaciones de unión, tales como operaciones de soldadura. Likewise, referring to FIG. 5, in one embodiment of the invention, the female coupling (7) has vertical perimeter plates (14) that extend in the direction of the second pile (9), covering a portion of its end (2). This facilitates the manufacture of the second pile (9), which can be done in the same way as the first pile (1). Referring to FIG. 5, in one embodiment of the invention, the vertical plates (5) and the vertical perimetral plates (14) can be coplanar and form a monolithic body. This facilitates the manufacture of the couplings (3,7), therefore, there is a smaller number of plates to be welded to the connecting plates (4, 8), and therefore, there are fewer joining operations, such as welding operations
En una modalidad (no ilustrada), los pilotes (1,9) tienen una sección transversal rectangular y las placas de conexión (4,8) son rectangulares. Esta modalidad permite acoplarse al tipo de formaletas prismáticas que usuaimente se utilizan para manufacturar pilotes prefabricados de concreto. In one embodiment (not illustrated), the piles (1,9) have a rectangular cross section and the connecting plates (4,8) are rectangular. This mode allows the type of prismatic forms that are usually used to manufacture precast concrete piles.
En una modalidad de la invención no ilustrada, el acople macho (3) tiene una primera placa de conexión (4) conectada al extremo (2) del primer pilote (1), de forma rectangular, y tiene una primera placa vertical (5) que se extiende desde la primera placa de conexión (4) y conforma una superficie cerrada de sección transversal circular, Adicionalmente, de la primera placa de conexión (4) sobresalen placas verticales perimetrales (14) hacia adentro y hacia afuera del primer pilote (1), donde las aristas distales de las placas verticales perimetrales (14) se apoyan sobre la placa de conexión (8) del acople hembra (7). Dichas placas verticales perimetrales (14), tienen perforaciones laterales (6) que se alinean con las perforaciones laterales (6) de las placas verticales (5) de los acoples (3, 7). De esta manera, se puede asegurar el dispositivo con medios de fijación (11) que atraviesan dichas perforaciones laterales (6). In one embodiment of the invention not illustrated, the male coupling (3) has a first connection plate (4) connected to the end (2) of the first pile (1), rectangular in shape, and has a first vertical plate (5) which extends from the first connection plate (4) and forms a closed surface of circular cross-section, Additionally, from the first connection plate (4), vertical perimeter plates (14) protrude in and out of the first pile (1 ), where the distal edges of the vertical perimetral plates (14) rest on the connecting plate (8) of the female coupling (7). Said vertical perimeter plates (14), have lateral perforations (6) that align with the lateral perforations (6) of the vertical plates (5) of the couplings (3, 7). In this way, the device can be secured with fixing means (11) that pass through said lateral perforations (6).
Así mismo, esta modalidad permite eliminar el concentrador de esfuerzo que se generaría en el área de unión del acople macho (3) con el acople hembra (7), pues, dicha área de unión es menor que el área transversal de los pilotes (1, 9). De igual manera, en una modalidad de la invención, el acopie hembra (7) tiene una segunda placa de conexión (8) conectada al extremo (2) del segundo pilote (9), de forma rectangular, y tiene una segunda placa vertical (5) que se extiende desde la segunda placa de conexión (8) y conforma una superficie cerrada de sección transversal circular. Adicionalmente, de la segunda placa de conexión (8), sobresalen placas verticales penmetrales (14) hacia adentro y hacia afuera del primer pilote (1), donde las aristas distaíes de las placas verticales perimetrales (14) se apoyan sobre la primera placa de conexión (4) del acople macho (3), Dichas placas verticales perimetrales (14), tienen perforaciones laterales (6) que se alinean con las perforaciones laterales (6) de las placas verticales (5) de los acoples (3, 7). De esta manera, se puede asegurar el dispositivo con medios de fijación (11) que atraviesan dichas perforaciones laterales (6). Así mismo, esta modalidad permite eliminar el concentrador de esfuerzo que se generaría en el área de unión del acople macho (3) con el acople hembra (7), pues, dicha área de unión es menor que el área transversal de los pilotes (1,9). Likewise, this modality allows eliminating the stress concentrator that would be generated in the joint area of the male coupling (3) with the female coupling (7), therefore, said joint area is smaller than the transverse area of the piles (1 , 9). Similarly, in one embodiment of the invention, the female coupling (7) has a second connection plate (8) connected to the end (2) of the second pile (9), rectangular in shape, and has a second vertical plate ( 5) which extends from the second connection plate (8) and forms a closed surface of circular cross-section. Additionally, from the second connection plate (8), penmetral vertical plates (14) protrude in and out of the first pile (1), where the edges away from the perimeter vertical plates (14) rest on the first plate of connection (4) of the male coupling (3), said vertical perimetral plates (14), have lateral perforations (6) that align with the lateral perforations (6) of the vertical plates (5) of the couplings (3, 7) . In this way, the device can be secured with fixing means (11) that pass through said lateral perforations (6). Likewise, this modality allows eliminating the stress concentrator that would be generated in the joint area of the male coupling (3) with the female coupling (7), therefore, said joint area is smaller than the transverse area of the piles (1 , 9).
Los medios de fijación (1 1) se seleccionan del grupo conformado por pines, espigos, bidones, tornillos, pernos, pin-cuñas, pines autobloqueantes o combinaciones de los anteriores. The fixing means (1 1) are selected from the group consisting of pins, spikes, drums, screws, bolts, pin-wedges, self-locking pins or combinations of the above.
En una modalidad de la invención, los medios de fijación (11) son pines. Estos pueden instalarse con facilidad, usando herramientas comunes en obra, tales como mazos y martillos. Los pines cuentan con la ventaja de que son fáciles de limpiar, y que no se dañan fácilmente al entrar en contacto con concreto, en comparación con medios de fijación (11 ) roscados, como tornillos y pernos. Ejemplo 1 : dispositivo para conectar pilotes para cimentación de una estructura civil. In one embodiment of the invention, the fixing means (11) are pins. These can be installed easily, using common tools on site, such as mallets and hammers The pins have the advantage that they are easy to clean, and that they are not easily damaged when they come into contact with concrete, compared to threaded fixing means (11), such as screws and bolts. Example 1: device for connecting piles for the foundation of a civil structure.
Se diseñó y constmyó un mecanismo para unir dos pilotes (1,9) para realizar ensayos de tensión, corte y compresión sobre todo el conjunto. Se fabricaron tres muestras del mecanismo, uno para cada ensayo. A mechanism was designed and built to join two piles (1,9) to perform tension, cut and compression tests on the entire assembly. Three samples of the mechanism were manufactured, one for each test.
Los pilotes (1,9) fueron de concreto reforzado con las siguientes características: The piles (1,9) were reinforced concrete with the following characteristics:
Primer pilote (1): First pile (1):
* Cantidad: 3 * Quantity: 3
* Tipo de concreto: Fuerza de compresión de 28 MPa.  * Type of concrete: Compression strength of 28 MPa.
* Sección transversal: 300mm x300 mm * Cross section: 300mm x300mm
« Tipo de armadura:  «Type of armor:
» Longitudinal: cuatro barras corrugadas (12) de acero conforme a la norma NTC2289 con esfuerzo de fluencia de 420MPa de 15,9mm de diámetro  »Longitudinal: four corrugated bars (12) made of steel conforming to NTC2289 standard with 420MPa yield strength of 15.9mm diameter
* Transversal: Estribos de diámetro 9.5 mm. * Transversal: Stirrups with diameter 9.5 mm.
* tipo de cierre: en gancho a 90° de 140 mm * type of closure: on hook at 90 ° of 140 mm
Segundo pilote (9): Second pile (9):
· Cantidad: 3  Quantity: 3
* Tipo de concreto: Fuerza de compresión de 28 MPa. * Type of concrete: Compression strength of 28 MPa.
* Sección transversal: 300mm x300 mm. * Cross section: 300mm x300mm.
* Tipo de armadura: * Type of armor:
* Longitudinal: cuatro barras de acero corrugado de 15,9mm de diámetro * Longitudinal: four bars of 15.9mm diameter corrugated steel
« Transversal: Estribos de diámetro 9.5 mm  «Transversal: Stirrups with diameter 9.5 mm
* tipo de cierre: en gancho a 90° de 140 mm, * type of closure: on a 90 ° hook of 140 mm,
La longitud de cada pilote (1,9) para el ensayo de corte, fue de 345mm. La longitud de cada pilote (1,9) para el ensayo de flexión, fue de 1470mm, con relación de esbeltez entre 1 1 y 12. The length of each pile (1,9) for the cutting test was 345mm. The length of each pile (1,9) for the flexural test was 1470mm, with a slenderness ratio between 1 1 and 12.
La longitud de cada pilote (1,9) para el ensayo de tensión, fue de 345mm. The length of each pile (1,9) for the tension test was 345mm.
Para los diferentes ensayos realizados, se utilizó una máquina universal para ensayos de compresión y tensión Shimadzu ® de capacidad a tensión y compresión de 1000 kN. For the different tests carried out, a universal machine for compression and tension tests Shimadzu ® with a tensile and compression capacity of 1000 kN was used.
Cada dispositivo tiene las siguientes especificaciones: Each device has the following specifications:
* acople macho (3): * male coupling (3):
» primera placa de conexión (4):  »First connection plate (4):
» largo 300 mm  »Length 300 mm
» ancho 300 mm  »Width 300 mm
» espesor 9.5 mm,  »Thickness 9.5 mm,
* tipo de soldadura: GMAW, alrededor por ambos lados. * type of welding: GMAW, around on both sides.
* primeras placas verticales (5):  * first vertical plates (5):
» cantidad: 4  »Quantity: 4
» tipo: en forma de L, cada placa vertical (5) tiene dos placas unidas entre si por soldadura de largo 100mm, ancho 60mm y espesor de 9.5 mm, con  »Type: L-shaped, each vertical plate (5) has two plates joined together by welding 100mm long, 60mm wide and 9.5mm thick, with
* perforaciones (6) de diámetro 15.9 mm, cada perforación (6) se ubica en una de las placas que conforman las placas verticales (5) en forma de L  * perforations (6) of diameter 15.9 mm, each perforation (6) is located in one of the plates that make up the L-shaped vertical plates (5)
* un acople hembra (7): * a female coupling (7):
* segunda placa de conexión (8) * second connection plate (8)
» largo: 280 mm  »Length: 280 mm
» ancho: 280 mm  »Width: 280 mm
* espesor 9.5 mm, * thickness 9.5 mm,
* tipo de soldadura: GMAW, alrededor por ambos lados. * type of welding: GMAW, around on both sides.
» segundas placas verticales (5) de espesor 9,5 mm, altura 60 mm y longitud 300 mm.  »Second vertical plates (5) of thickness 9.5 mm, height 60 mm and length 300 mm.
* perforaciones (6) de diámetro 15.9 mm * perforations (6) diameter 15.9 mm
* medios de fijación (11): pines de acero de 15,8mm de diámetro.  * fixing means (11): 15.8mm diameter steel pins.
Ensayo a tensión: se sometió el dispositivo para unir dos pilotes (1,9) de concreto. En el ensayo de laboratorio cada dispositivo resistió 345 kN y se observó que la falla se produjo por fluencia en las barras corrugadas (12) de acero. Adicionalmente se superaron los 305 kN como carga teórica esperada que resistiría el modelo sin que se presentaran fallas en las piezas específicas tanto del acople macho (3) como del acopie hembra (7). Tension test: the device was subjected to join two concrete piles (1,9). In the laboratory test each device withstood 345 kN and it was observed that the fault was caused by creep in the corrugated bars (12) of steel. Additionally, the 305 kN was exceeded as the expected theoretical load that would resist the model without any failure in the specific parts of both the male coupling (3) and the female coupling (7).
Ensayo a corte: En el ensayo a corte el modelo fue una simulación de un espécimen conformado por los pilotes (1 ,9) conectados entre sí. Cut test: In the cut test the model was a simulation of a specimen formed by the piles (1, 9) connected to each other.
El espécimen se situó de forma horizontal para este ensayo y tuvo dos apoyos a 100 mm de cada borde exterior. The specimen was placed horizontally for this test and had two supports 100 mm from each outer edge.
Mediante la una máquina universal para ensayos de compresión y tensión, se aplicó una fuerza mediante una barra lisa. La cara cilindrica de la barra lisa se apoya en una de las placas verticales (5), con el fin de producir una falla por corte. By means of a universal machine for compression and tension tests, a force was applied by means of a smooth bar. The cylindrical face of the smooth bar rests on one of the vertical plates (5), in order to produce a failure due to cutting.
En el ensayo de laboratorio la muestra resistió 515 kN y se observó que la falla se produjo por corte en el concreto, que es donde se esperaba obtener el fallo. Adicionalmente se superaron ios 200 kN, que era lo mínimo esperado que resistiera el dispositivo de conexión sin que se presentaran fallas en las piezas específicas del dispositivo. In the laboratory test the sample withstood 515 kN and it was observed that the fault was caused by cutting in the concrete, which is where the fault was expected to be obtained. Additionally, ios 200 kN were exceeded, which was the minimum expected to resist the connection device without failures in the specific parts of the device.
Ensayo a flexión: Ensayo de flexión se realizó según ío especificado en la norma UNE- EN 12794 : 2006+A 1 (2006 : 20) , Flexural test: Flexural test was performed according to the one specified in the UNE-EN 12794: 2006 + A 1 (2006: 20) standard,
Para el ensayo de carga, se sitúo el dispositivo acoplado sobre dos apoyos con un vano igual a 10 veces la dimensión mínima de la sección transversal del pilote, pero no inferior a 3.00 m. El dispositivo de conexión se situó exactamente en la mitad del vano, teniendo a cada lado del centro una longitud igual a L/3 + 2 veces la dimensión mínima de la sección transversal del pilote. El pilote se sometió a ensayo mediante dos cargas puntuales e idénticas aplicadas a un tercio de la longitud del vano y de acuerdo con lo especificado en la norma UNE-EN 12794: 2006+A 1. En el ensayo de flexión la muestra resistió 115 kN y se observó que la falla se produjo por fractura en el concreto. El momento real de falla fue de: 57,4 kN-m, que es mayor al momento teórico de falla, de 28.0 kN-rn. Por lo tanto se considera que el ensayo cumple con la resistencia mínima que debe tener para presentar un comportamiento satisfactorio del pilote ante solicitaciones impuestas por flexión. For the load test, the coupled device was placed on two supports with a span equal to 10 times the minimum cross-sectional dimension of the pile, but not less than 3.00 m. The connection device was located exactly in the middle of the opening, having on each side of the center a length equal to L / 3 + 2 times the minimum cross-sectional dimension of the pile. The pile was tested by two point and identical loads applied to a third of the length of the span and in accordance with the provisions of the UNE-EN 12794: 2006 + A 1 standard. In the flexural test, the sample withstood 115 kN and it was observed that the failure was caused by fracture in the concrete. The actual moment of failure was: 57.4 kN-m, which is greater than the theoretical moment of failure, of 28.0 kN-rn. Therefore, it is considered that the test complies with the minimum resistance that it must have in order to present a satisfactory behavior of the pile before requests imposed by flexion.
Se debe entender que la presente invención no se halla limitada a las modalidades descritas e ilustradas, pues como será evidente para una persona versada en el arte, existen variaciones y modificaciones posibles que no se apartan del espíritu de la invención, el cual solo se encuentra definido por las siguientes reivindicaciones.  It should be understood that the present invention is not limited to the modalities described and illustrated, since as will be evident to a person versed in art, there are possible variations and modifications that do not depart from the spirit of the invention, which is only found defined by the following claims.

Claims

REIVINDICACIONES
1. Un dispositivo para conectar dos pilotes prefabricados (1, 9), cada pilote (1, 9) con un extremo (2), el dispositivo comprende: 1. A device for connecting two prefabricated piles (1, 9), each pile (1, 9) with one end (2), the device comprises:
- un acople macho (3) con una primera placa de conexión (4) conectada al extremo (2) del primer pilote (1) y una primera placa vertical (5) que se extiende desde la primera placa de conexión (4) y conforma una superficie cerrada;  - a male coupling (3) with a first connection plate (4) connected to the end (2) of the first pile (1) and a first vertical plate (5) extending from the first connection plate (4) and conforming a closed surface;
- un acople hembra (7) conectado al acople macho (3), el acople hembra (7) tiene una segunda placa de conexión (8) conectada al extremo (2) del segundo pilote (9); y tiene un receptáculo (10) localizado en la segunda placa de conexión (8), el receptáculo (10) está conformado por una segunda placa vertical (5) que conforma una superficie cerrada;  - a female coupling (7) connected to the male coupling (3), the female coupling (7) has a second connection plate (8) connected to the end (2) of the second pile (9); and has a receptacle (10) located on the second connection plate (8), the receptacle (10) is formed by a second vertical plate (5) that forms a closed surface;
donde las placas verticales (5) del acople macho (3) y el acople hembra (7) tienen una perforación lateral (6); y  where the vertical plates (5) of the male coupling (3) and the female coupling (7) have a lateral perforation (6); Y
» un medio de fijación (11) que conecta las perforaciones laterales (6) del acople macho (3) con las perforaciones laterales (6) del acople hembra (7).  »A fixing means (11) connecting the lateral perforations (6) of the male coupling (3) with the lateral perforations (6) of the female coupling (7).
2. El dispositivo de la Reivindicación 1, caracterizado porque el acople macho (3) incluye tres placas verticales (5) que se extienden desde la primera placa de conexión (4) y conforma una superficie cerrada; y el receptáculo (10) del acople hembra (7) está conformado por tres placas verticales (5) que conforman una superficie cerrada; donde, cada placa vertical (5) del acople macho (3) y el acople hembra (7) tiene una perforación lateral (6), y donde las perforaciones (6) se alinean y se aseguran con medios de fijación (11). 2. The device of Claim 1, characterized in that the male coupling (3) includes three vertical plates (5) extending from the first connection plate (4) and forming a closed surface; and the receptacle (10) of the female coupling (7) is formed by three vertical plates (5) that form a closed surface; where, each vertical plate (5) of the male coupling (3) and the female coupling (7) has a lateral perforation (6), and where the perforations (6) are aligned and secured with fixing means (11).
3. El dispositivo de la Reivindicación 2, caracterizado porque las superficies cerradas de los acoples (3,7) son de forma poligonal. 3. The device of Claim 2, characterized in that the closed surfaces of the couplings (3.7) are polygonal in shape.
4. El dispositivo de la Reivindicación 3, caracterizado porque las placas verticales (5) del acople macho (3) y el acople hembra (7) se disponen en un arreglo triangular. The device of Claim 3, characterized in that the vertical plates (5) of the male coupling (3) and the female coupling (7) are arranged in a triangular arrangement.
5. El dispositivo de la Reivindicación 3, donde el acople macho (3) tiene cuatro placas verticales (5) conformando una superficie cerrada rectangular, y el receptáculo (10) del acople hembra (7) tiene cuatro placas verticales (5) conformando una superficie cerrada rectangular. 5. The device of Claim 3, wherein the male coupling (3) has four vertical plates (5) forming a rectangular closed surface, and the receptacle (10) of the female coupling (7) has four vertical plates (5) forming a closed rectangular surface.
6. El dispositivo de la Reivindicación 2, caracterizado porque cada placa vertical (5) tienen dos perforaciones laterales (6) ubicadas a los lados de su centroide de manera simétrica. The device of Claim 2, characterized in that each vertical plate (5) has two lateral perforations (6) located on the sides of its centroid symmetrically.
7. El dispositivo de la Reivindicación 1 , caracterizado porque las placas de conexión (8) se conectan a varillas de una armadura metálica que sobresale del extremo (2) de los pilotes (1,9). 7. The device of Claim 1, characterized in that the connecting plates (8) are connected to rods of a metal reinforcement that protrudes from the end (2) of the piles (1,9).
8. El dispositivo de la Reivindicación 1, caracterizado porque los medios de fijación (11) se seleccionan entre pines, pin cuñas, tornillos, pernos, tornillos prisioneros o combinaciones de los mismos. The device of Claim 1, characterized in that the fixing means (11) are selected from pins, wedges, screws, bolts, captive screws or combinations thereof.
PCT/IB2018/053253 2017-05-11 2018-05-10 Device for connecting prefabricated concrete piles WO2018207126A1 (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
US20100143048A1 (en) * 2008-12-08 2010-06-10 Maclean-Fogg Company Piling apparatus
KR20120019085A (en) * 2010-08-25 2012-03-06 최성희 Apparatus for connecting concrete piles
CN203113323U (en) * 2013-02-01 2013-08-07 江苏东浦管桩有限公司 Tubular pile connector

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Publication number Priority date Publication date Assignee Title
US20100143048A1 (en) * 2008-12-08 2010-06-10 Maclean-Fogg Company Piling apparatus
KR20120019085A (en) * 2010-08-25 2012-03-06 최성희 Apparatus for connecting concrete piles
CN203113323U (en) * 2013-02-01 2013-08-07 江苏东浦管桩有限公司 Tubular pile connector

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