ES2846900T3 - Structural system for the construction of single layer structures - Google Patents
Structural system for the construction of single layer structures Download PDFInfo
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- ES2846900T3 ES2846900T3 ES17380026T ES17380026T ES2846900T3 ES 2846900 T3 ES2846900 T3 ES 2846900T3 ES 17380026 T ES17380026 T ES 17380026T ES 17380026 T ES17380026 T ES 17380026T ES 2846900 T3 ES2846900 T3 ES 2846900T3
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3211—Structures with a vertical rotation axis or the like, e.g. semi-spherical structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2676—Connector nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3223—Theorical polygonal geometry therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
- E04B2001/3241—Frame connection details
- E04B2001/3247—Nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3294—Arched structures; Vaulted structures; Folded structures with a faceted surface
Abstract
Un sistema estructural para la construcción de estructuras de capa única, comprendiendo dicho sistema estructural barras (1), con al menos un orificio (2) coaxial en cada extremo de la barra, unidas a nudos (3) mediante tornillos (5) de unión, en el que un casquillo (4) con rosca interior incrustado y fijado en los orificios (2) coaxiales de los extremos de la barra aloja el tornillo (5) de unión que fija la unión barra-nudo (1, 3); caracterizado porque cada nudo que presenta al menos un orificio (6) pasante con rosca está destinado a recibir el tornillo (5) de unión.A structural system for the construction of single-layer structures, said structural system comprising bars (1), with at least one coaxial hole (2) at each end of the bar, attached to knots (3) by connecting screws (5) , in which a bushing (4) with internal thread embedded and fixed in the coaxial holes (2) of the ends of the bar houses the connection screw (5) that fixes the bar-node connection (1, 3); characterized in that each node having at least one threaded through hole (6) is intended to receive the connecting screw (5).
Description
DESCRIPCIÓNDESCRIPTION
Sistema estructural para la construcción de estructuras de capa únicaStructural system for the construction of single layer structures
La presente invención se refiere a un sistema estructural para la construcción de estructuras de capa única, basadas en nudos interconectados por barras.The present invention relates to a structural system for the construction of single layer structures, based on interconnected nodes by bars.
Antecedentes de la invenciónBackground of the invention
Las estructuras de capa única constituidas por barras y nudos son utilizadas para cubrir espacios abiertos de grandes dimensiones.Single layer structures made up of bars and nodes are used to cover large open spaces.
De manera general, los sistemas de capa única sitúan los nudos de las estructuras dentro de una superficie paralela al cerramiento que normalmente deben fijar. Esta superficie, que se denomina “superficie generatriz”, podrá ser de curvatura simple o de curvatura doble. Las uniones entre nudos se forman mediante barras de diferentes perfiles. El conjunto de la estructura constituye realmente un poliedro; los nudos de la estructura son los vértices del poliedro y las barras son las aristas. Las retículas más normales están formadas por triángulos o cuadriláteros. Salvo en algunas estructuras con geometrías muy simples y regulares, por ejemplo, en las bóvedas cilíndricas, que presentan una curvatura simple o en determinadas tipologías de cúpulas siempre que tengan simetría de revolución, el grado de diversidad de las barras y de los ángulos que forman entre ellas es extraordinariamente elevado, aspecto que condiciona fuertemente los procesos de producción.In general, single-layer systems place the nodes of the structures within a surface parallel to the enclosure that they normally must fix. This surface, which is called the "generatrix surface", may be single curvature or double curvature. The joints between nodes are formed by bars of different profiles. The whole of the structure really constitutes a polyhedron; the nodes of the structure are the vertices of the polyhedron and the bars are the edges. The most normal grids are made up of triangles or quadrilaterals. Except in some structures with very simple and regular geometries, for example, in cylindrical vaults, which have a simple curvature or in certain types of domes provided they have symmetry of revolution, the degree of diversity of the bars and the angles they form among them it is extraordinarily high, an aspect that strongly conditions the production processes.
Un ejemplo de un sistema de conexión para estructuras espaciales de capa única es el descrito en la patente ES2317818, donde se representa un conjunto de construcción para estructuras espaciales basadas en barras unidas en nudos, realizándose la unión entre dichos elementos mediante tornillos que presentan dos partes roscadas diferenciadas separadas por un tope, estando dicha primera parte roscada y estando dicha segunda parte roscada, roscadas en sentidos opuestos. En el sistema descrito en la patente ES2317818, el ángulo de torsión que es el que forma el vector de orientación de la barra y la proyección del vector de orientación del nudo en el plano perpendicular al eje no es muy amplio.An example of a connection system for single layer spatial structures is that described in patent ES2317818, where a construction set for spatial structures based on bars joined in knots is represented, the connection between said elements being carried out by means of screws that have two parts differentiated threaded parts separated by a stop, said first threaded part being and said second threaded part being threaded in opposite directions. In the system described in patent ES2317818, the torsion angle that is the one formed by the orientation vector of the bar and the projection of the orientation vector of the node in the plane perpendicular to the axis is not very wide.
El documento de patente US5575129 desvela un sistema estructural que comprende todas las características del preámbulo de la reivindicación 1.Patent document US5575129 discloses a structural system comprising all the characteristics of the preamble of claim 1.
Descripción de la invenciónDescription of the invention
El presente sistema estructural ha sido desarrollado para la construcción de estructuras espaciales de capa única. Dichas estructuras de barras y nudos sitúan sus nudos en una superficie de doble curvatura, es decir, superficies generadas por el movimiento de una generatriz curva. A partir de esta superficie, la estructura se forma mediante una malla de triángulos o cuadriláteros, de modo que el conjunto constituye un poliedro inscrito en la citada superficie. Los ejes de las barras de la estructural real coinciden con las aristas del citado poliedro.The present structural system has been developed for the construction of single-layer spatial structures. Said structures of bars and nodes place their nodes on a double curvature surface, that is, surfaces generated by the movement of a curved generatrix. From this surface, the structure is formed by means of a mesh of triangles or quadrilaterals, so that the whole constitutes a polyhedron inscribed in said surface. The axes of the bars of the real structure coincide with the edges of the aforementioned polyhedron.
La unión barra-nudo del sistema de la presente invención presenta un alto grado de incrustación, principalmente en el sentido perpendicular a la superficie generatriz. En el presente sistema, los nudos son básicamente piezas cilíndricas huecas cuyo eje principal se dispone perpendicular al plano tangente a la citada superficie en el propio nudo. En la superficie lateral del cilindro se enfrentan unos planos perpendiculares a los ejes según los cuales las barras que terminan en dicho nudo acceden a él. A su vez, se mecanizan orificios pasantes, a través de los cuales se realiza la conexión con el extremo de la barra.The bar-node joint of the system of the present invention has a high degree of embedding, mainly in the direction perpendicular to the generating surface. In the present system, the nodes are basically hollow cylindrical pieces whose main axis is arranged perpendicular to the plane tangent to said surface at the node itself. On the lateral surface of the cylinder there are planes perpendicular to the axes according to which the bars ending in said node access it. In turn, through holes are machined, through which the connection with the end of the bar is made.
El sistema descrito en la presente invención admite una gran variabilidad de ángulos de ataque de los elementos que componen la estructura, además de dotar a la estructura de estabilidad, resistencia y rigidez.The system described in the present invention admits a great variability of angles of attack of the elements that make up the structure, in addition to providing the structure with stability, resistance and rigidity.
La presente invención se refiere a un sistema estructural para capas únicas basado en nudos y barras unidos entre sí mediante tornillos roscados en casquillos incrustados y fijados a orificios coaxiales a las barras, los tornillos se introducen desde el interior de los nudos a través de los orificios pasantes en el nudo.The present invention refers to a structural system for single layers based on knots and bars joined together by screws threaded in bushings embedded and fixed to holes coaxial to the bars, the screws are introduced from the inside of the knots through the holes internals in the knot.
Por lo tanto, el primer aspecto de la invención se refiere a un sistema estructural para la construcción de estructuras de capa única de entre los que comprenden barras, con al menos un orificio coaxial en cada extremo de la barra, unidas a nudos mediante tornillos de unión, presentando cada nudo al menos un orificio pasante con rosca destinado a recibir el tornillo de unión; en el que un casquillo con una rosca interior incrustado y fijado en los orificios coaxiales de los extremos de la barra aloja el tornillo de unión que fija la unión barra-nudo.Therefore, the first aspect of the invention refers to a structural system for the construction of single-layer structures that comprise bars, with at least one coaxial hole at each end of the bar, attached to knots by means of screws. union, each node presenting at least one threaded through hole intended to receive the union screw; in which a bushing with an internal thread embedded and fixed in the coaxial holes at the ends of the bar houses the union screw that fixes the bar-node connection.
Otra ventaja del casquillo es que se forma de este modo una unión lineal sin holguras, además los casquillos quedan completamente ocultos en el interior de la barra con lo que reduce el impacto estético.Another advantage of the bushing is that a linear joint without gaps is formed in this way, in addition the bushings are completely hidden inside the bar thereby reducing the aesthetic impact.
Los ángulos involucrados en las conexiones de las barras al nudo son tres: ángulo horizontal, el sistema permite cualquier ángulo de ataque horizontal, con la única condición de que los ángulos entre las barras condicionan el tamaño del nudo por la necesidad de salvar interferencia entre las barras; ángulo vertical, la limitación de este ángulo viene dada por la altura del perfil de la barra y el espesor del tubo perforado de partida para generar el nudo, de manera que si el ángulo vertical es más amplio, es necesario un espesor mayor del tubo perforado de partida para que la inclinación del plano que se realiza con el nudo no implique una excesiva pérdida de material; ángulo de torsión, este ángulo es una consecuencia geométrica directa derivada de que los vectores de orientación de los nudos unidos por una barra no necesariamente han de estar contenidos en un plano. Esto implica que la barra ha de adquirir una orientación de compromiso inclinada con respecto a sus dos nudos extremos. El ángulo de torsión es precisamente el que forman el vector de orientación de la barra y la proyección del vector de orientación del nudo en el plano perpendicular al eje de la barra.The angles involved in the connections of the bars to the node are three: horizontal angle, the system allows any horizontal angle of attack, with the only condition that the angles between the bars condition the size of the node due to the need to save interference between the bars; vertical angle, the limitation of this angle is given by the height of the bar profile and the thickness of the starting perforated tube to generate the node, so that if the vertical angle is wider, a greater thickness of the starting perforated tube is necessary so that the inclination of the plane that is made with the knot does not imply an excessive loss of material; torsion angle, this angle is a direct geometric consequence derived from the fact that the orientation vectors of the nodes joined by a bar do not necessarily have to be contained in a plane. This implies that the bar has to acquire an inclined engagement orientation with respect to its two end nodes. The torsion angle is precisely that formed by the orientation vector of the bar and the projection of the orientation vector of the joint in the plane perpendicular to the axis of the bar.
El procedimiento de fabricación de los nudos es asistido por ordenador, en particular, mecanizados por CAM, esto redunda en una drástica reducción de la documentación gráfica necesaria y permite realizar geometrías libres y complejas sin incrementar los costes de ingeniería. La repetibilidad geométrica de los nudos deja de ser un requisito en el momento en que la geometría de cada nudo es generada automáticamente mediante herramientas de software de diseño. No es necesario realizar planos de detalle ni de despiece de nudos, puesto que la información que los define está recogida en listados de parámetros que alimentan directamente las plantillas de lenguaje de máquina que emplean los centros de mecanizado.The manufacturing process of the knots is computer-aided, in particular, machined by CAM, this results in a drastic reduction of the necessary graphic documentation and allows free and complex geometries to be made without increasing engineering costs. The geometric repeatability of the nodes is no longer a requirement when the geometry of each node is automatically generated using design software tools. It is not necessary to make detail or exploded drawings of nodes, since the information that defines them is collected in parameter lists that directly feed the machine language templates used by machining centers.
Por otro lado, la resolución geométrica automatizada también resulta en la definición de las longitudes exactas de las barras que componen la estructura. Estas, a su vez, se fabrican mediante máquinas de corte y posicionamiento alimentadas directamente por parámetros obtenidos desde el software de cálculo.On the other hand, automated geometric resolution also results in the definition of the exact lengths of the bars that make up the structure. These, in turn, are manufactured using cutting and positioning machines fed directly by parameters obtained from the calculation software.
Los nudos y las barras se fabrican en instalaciones industriales muy flexibles y altamente automatizadas. Su prefabricación permite obtener unos altos niveles de diversificación, precisión y acabado. Los nudos y las barras son fácilmente apilables y se expiden a la obra una vez pintadas adecuadamente en contenedores, consiguiendo un alto rendimiento volumétrico. En la obra ya es sólo necesario atornillar los diferentes elementos.Knots and bars are manufactured in very flexible and highly automated industrial facilities. Its prefabrication allows to obtain high levels of diversification, precision and finish. The knots and bars are easily stackable and are shipped to the job site once properly painted in containers, achieving a high volumetric performance. On site it is only necessary to screw the different elements.
Otro aspecto de la presente invención es la estructura de capa única que comprende un sistema estructural de la invención que comprende una pluralidad de nudos y una pluralidad de barras atornilladas en dichos nudos, configurando dicha estructura un poliedro con aristas definidas por dichas barras.Another aspect of the present invention is the single layer structure comprising a structural system of the invention comprising a plurality of nodes and a plurality of bars screwed into said nodes, said structure configuring a polyhedron with edges defined by said bars.
Breve descripción de los dibujosBrief description of the drawings
Con el propósito de ayudar a hacer la descripción anterior más fácilmente entendible, se acompaña de un juego de dibujos que, esquemáticamente y a título de ilustración y no limitación, representan una realización.In order to help make the above description more easily understandable, it is accompanied by a set of drawings that, schematically and by way of illustration and not limitation, represent an embodiment.
La figura 1 muestra una vista en despiece del sistema de la invención.Figure 1 shows an exploded view of the system of the invention.
La figura 2 muestra una sección transversal a lo largo del eje AA' que se muestra en la figura 1.Figure 2 shows a cross section along the axis AA 'shown in Figure 1.
La figura 3 es una vista en perspectiva del nudo del ejemplo de la invención.Figure 3 is a perspective view of the knot of the example of the invention.
Descripción de una realización preferenteDescription of a preferred embodiment
Como se ha descrito, el primer aspecto de la invención se refiere a un sistema estructural para la construcción de estructuras de capa única de entre los que comprenden barras (1), con al menos un orificio (2) coaxial en cada extremo de la barra, unidas a nudos (3) mediante tornillos (5) de unión, presentando cada nudo (3) al menos un orificio (6) pasante con rosca destinado a recibir el tornillo (5) de unión; en el que un casquillo (4) con rosca interior incrustado y fijado en los orificios (2) coaxiales de los extremos de la barra aloja el tornillo (5) de unión que fija la unión barra-nudo (1, 3).As has been described, the first aspect of the invention refers to a structural system for the construction of single-layer structures from among those comprising bars (1), with at least one coaxial hole (2) at each end of the bar , joined to nodes (3) by means of connection screws (5), each node (3) having at least one threaded through hole (6) intended to receive the connection screw (5); in which a bushing (4) with internal thread embedded and fixed in the coaxial holes (2) at the ends of the bar houses the connection screw (5) that fixes the bar-node connection (1, 3).
Preferentemente las barras (1) son de madera. La madera frente a otros materiales como el acero presenta ventajas, como la reducción de la huella de carbono, no sufre corrosión, tiene un comportamiento ante el fuego controlado sin necesidad de emplear recubrimientos intumescentes. A diferencia de otros tipos de uniones de madera en base a herrajes y bulones, el comportamiento del sistema de la invención es lineal para toda la gama de esfuerzos admisibles. Esto tiene especial importancia cuando se trata de resolver estructuras de capa única por compresión, donde la aparición de fenómenos de pandeo global está directamente relacionada con el comportamiento del nudo; en particular, con la rigidez y linealidad de la unión. Más preferentemente la madera es de alta resistencia, de manera que la sección transversal de la misma puede ser menor respecto a las maderas laminares tradicionales y que se asemejen a las alturas de perfil utilizadas en acero, evitándose sobrecostes de perfiles más amplios.Preferably the bars (1) are made of wood. Wood has advantages over other materials such as steel, such as the reduction of the carbon footprint, it does not suffer from corrosion, it has a controlled fire behavior without the need to use intumescent coatings. Unlike other types of wooden joints based on fittings and bolts, the behavior of the system of the invention is linear for the entire range of allowable stresses. This is especially important when it comes to solving single layer structures by compression, where the appearance of global buckling phenomena is directly related to the behavior of the joint; in particular, with the stiffness and linearity of the joint. More preferably, the wood is of high resistance, so that its cross section can be smaller compared to traditional laminar woods and that they resemble the profile heights used in steel, avoiding extra costs for wider profiles.
Preferentemente la sección transversal de la barra (1) es rectangular. Preferentemente los extremos de la barra (1) están formados por tapas rectangulares que presentan dos orificios coaxiales (2).Preferably the cross section of the bar (1) is rectangular. Preferably the ends of the bar (1) are formed by rectangular caps that have two coaxial holes (2).
Preferentemente los nudos (3) son de acero. Preferentemente el nudo (3) es un cuerpo cilíndrico hueco, abierto por ambos extremos, para permitir el acceso a los tornillos (5) de unión con los que el nudo (3) se une a los extremos de la barra, por la cara exterior, el cuerpo cilíndrico presenta planos que dan apoyo a los correspondientes extremos de la barra. Más preferentemente estos planos son de sección transversal troncocónica. Preferentemente los nudos (3) presentan dos orificios pasantes con rosca en cada una de sus caras que son complementarios a los dos orificios (2) coaxiales de los extremos de las barras (1). The nodes (3) are preferably made of steel. Preferably the knot (3) is a hollow cylindrical body, open at both ends, to allow access to the connection screws (5) with which the knot (3) is attached to the ends of the bar, on the outer face , the cylindrical body has planes that support the corresponding ends of the bar. More preferably these planes are frustoconical in cross section. Preferably the nodes (3) have two threaded through holes on each of their faces that are complementary to the two coaxial holes (2) at the ends of the bars (1).
Preferentemente los orificios pasantes con rosca de los nudos para la introducción del extremo exterior del casquillo son orificios avellanados, para que se asiente de manera correcta la cabeza del tornillo. Estos orificios avellanados son concéntricos con los orificios pasantes del nudo y su eje puede cortar o no el eje de orientación del nudo; por lo tanto, preferentemente tiene una excentricidad que permite el ángulo de torsión en el nudo.Preferably the threaded through holes of the nodes for the introduction of the outer end of the sleeve are countersunk holes, so that the screw head is correctly seated. These countersunk holes are concentric with the through holes of the knot and their axis may or may not cut the orientation axis of the knot; therefore, it preferably has an eccentricity that allows the twist angle at the knot.
Preferentemente el casquillo con rosca (4) interior incrustado y fijado en los orificios (2) coaxiales de los extremos de la barra se fija con un agente adhesivo. Más preferentemente el agente adhesivo es una resina.Preferably, the internally threaded bushing (4) embedded and fixed in the coaxial holes (2) at the ends of the bar is fixed with an adhesive agent. Most preferably the bonding agent is a resin.
Para garantizar una buena tolerancia dimensional en la barra (1), el contacto con el nudo (3) lo hacen los casquillos (4), que sobresalen ligeramente con respecto a la barra, de manera que el contacto se produce entre casquillo (4) y nudo (3) y no entre barra (1) y nudo (3). De esta manera, la precarga de los tornillos (5) se hace con el nudo (3) contra el casquillo (4) y la unión con el agente adhesivo queda inicialmente descargada. A nivel de tolerancia dimensional, esto evita que sea la barra (1) la que limite la tolerancia longitudinal.To guarantee a good dimensional tolerance in the bar (1), the contact with the node (3) is made by the bushings (4), which protrude slightly with respect to the bar, so that the contact occurs between bush (4) and node (3) and not between bar (1) and node (3). In this way, the preloading of the screws (5) is made with the knot (3) against the bushing (4) and the bond with the adhesive agent is initially discharged. At the level of dimensional tolerance, this prevents the bar (1) from limiting the longitudinal tolerance.
Preferentemente el número de orificios (2) en los extremos de la barra son dos. El hecho de que existan dos uniones atornilladas en el extremo de cada barra tiene como fin la transmisión de esfuerzos flexores.Preferably the number of holes (2) at the ends of the bar are two. The fact that there are two bolted joints at the end of each bar has the purpose of transmitting flexor forces.
En cuanto a la capacidad de transmisión de tipos de esfuerzos, se puede hablar de esfuerzos axiales, flexores y de cizalla. Los esfuerzos estructurales se transmiten entre barras (1) a través del nudo (3) mediante los siguientes elementos: en primer lugar, la barra (1) realizada en madera laminada de alta resistencia transfiere los esfuerzos a dos casquillos (4) metálicos mediante la unión con el agente adhesivo; los casquillos (4) están en contacto directo con el nudo (3) y presionados contra este por la precarga de los tornillos (5). Así, en caso de existir compresión, los casquillos (4) transmiten la carga directamente al nudo (3). En caso de existir esfuerzo de tracción, se deberá al tornillo (5) mediante la cabeza del mismo, siendo el encargado de transmitir este esfuerzo al nudo (3). La pared del nudo (3) entre la cabeza del tornillo (5) y el casquillo (4) está calculada para ofrecer al menos la misma resistencia que el propio tronillo (5); por último, es el propio nudo (3) el que transmite los esfuerzos entre las barras (1) que confluyen en él. Regarding the transmission capacity of types of efforts, one can speak of axial, flexor and shear forces. The structural forces are transmitted between bars (1) through the node (3) by means of the following elements: firstly, the bar (1) made of high-resistance laminated wood transfers the forces to two metal bushings (4) by means of the bonding with the bonding agent; the bushings (4) are in direct contact with the knot (3) and pressed against it by the preload of the screws (5). Thus, in the event of compression, the bushings (4) transmit the load directly to the node (3). In the event of tensile stress, it will be due to the screw (5) through its head, being responsible for transmitting this stress to the knot (3). The wall of the node (3) between the head of the screw (5) and the bushing (4) is calculated to offer at least the same resistance as the screw (5) itself; finally, it is the node (3) itself that transmits the forces between the bars (1) that converge on it.
Claims (11)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17380026.9A EP3498928B1 (en) | 2017-12-12 | 2017-12-12 | Structural system for constructing single-layer structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2846900T3 true ES2846900T3 (en) | 2021-07-30 |
Family
ID=61007432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES17380026T Active ES2846900T3 (en) | 2017-12-12 | 2017-12-12 | Structural system for the construction of single layer structures |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3498928B1 (en) |
| ES (1) | ES2846900T3 (en) |
| MX (1) | MX2018002233A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484430A (en) * | 1981-08-10 | 1984-11-27 | Wendell E. Rossman | Connector for a structural member |
| CA2134137A1 (en) * | 1993-10-30 | 1995-05-01 | Goto Yasuo | Connector for truss structure |
| ES2317818B1 (en) | 2006-04-12 | 2010-02-08 | Lanik I, S.A. | CONNECTION SYSTEM FOR MONOCAPA SPACE STRUCTURES. |
| JP2009281027A (en) * | 2008-05-21 | 2009-12-03 | Sakawa:Kk | Wooden truss framework member |
-
2017
- 2017-12-12 ES ES17380026T patent/ES2846900T3/en active Active
- 2017-12-12 EP EP17380026.9A patent/EP3498928B1/en active Active
-
2018
- 2018-02-21 MX MX2018002233A patent/MX2018002233A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX2018002233A (en) | 2019-06-13 |
| EP3498928B1 (en) | 2020-10-28 |
| EP3498928A1 (en) | 2019-06-19 |
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