ES2291053B1 - MANUFACTURE AND UNION SYSTEM OF HOLLOW CONCRETE POSTS OF REINFORCED AND / OR PRETENSED CONCRETE. - Google Patents
MANUFACTURE AND UNION SYSTEM OF HOLLOW CONCRETE POSTS OF REINFORCED AND / OR PRETENSED CONCRETE. Download PDFInfo
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- ES2291053B1 ES2291053B1 ES200302327A ES200302327A ES2291053B1 ES 2291053 B1 ES2291053 B1 ES 2291053B1 ES 200302327 A ES200302327 A ES 200302327A ES 200302327 A ES200302327 A ES 200302327A ES 2291053 B1 ES2291053 B1 ES 2291053B1
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- Prior art keywords
- base
- section
- sections
- tip
- concrete
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/18—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for the production of elongated articles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
Abstract
Sistema de fabricación y unión de tramos de postes huecos de hormigón armado y/o pretensado, siendo de utilidad en la fabricación de los dos tramos, de base y de punta, conformantes de un poste hueco de hormigón, de forma que la fabricación del tramo de base (1) de hormigón armado y/o pretensado comprende las fases de fijación por soldadura a la armadura metálica (5) y centrifugación, en el correspondiente molde, de la armadura metálica (5) junto con el cuerpo (3) de unión solidario a ella; en tanto que la fabricación del tramo de punta (2) comprende las fases de obtención del tramo de punta definiendo un entrante (4); introducción, en posición horizontal centrada, del cuerpo (3); inyección de un mortero de alta resistencia rellenando el espacio (6); y separación del tramo de base (1) y de punta (2) una vez que el mortero (7) ha adquirido la adecuada consistencia.System for manufacturing and joining sections of hollow posts of reinforced and / or prestressed concrete, being useful in the manufacture of the two sections, base and tip, forming a hollow concrete post, so that the manufacture of the section of base (1) of reinforced and / or prestressed concrete comprises the phases of fixing by welding to the metal reinforcement (5) and centrifugation, in the corresponding mold, of the metal reinforcement (5) together with the joint body (3) supportive of her; while the manufacture of the tip section (2) comprises the phases of obtaining the tip section by defining an inlet (4); introduction, in horizontal centered position, of the body (3); injection of a high strength mortar filling the space (6); and separation of the base (1) and tip (2) section once the mortar (7) has acquired adequate consistency.
Description
Sistema de fabricación y unión de tramos de postes huecos de hormigón armado y/o pretensado.System of manufacture and union of sections of hollow posts of reinforced and / or prestressed concrete.
La siguiente invención, según se expresa en el enunciado de la presente memoria descriptiva, se refiere a un sistema de fabricación y unión de tramos de postes huecos de hormigón armado y/o pretensado, siendo de utilidad en la conformación de postes de hormigón huecos que por su longitud son fabricados, al menos, según dos tramos que posteriormente deben de ser unidos entre sí, de forma que un objetivo del sistema que se presenta es permitir la ejecución de la junta de unión de los tramos conformantes del mismo en el emplazamiento definitivo del poste, de una forma rápida e izado inmediato, sin necesidad de soldadura.The following invention, as expressed in the set forth herein, refers to a system for manufacturing and joining sections of hollow posts reinforced and / or prestressed concrete, being useful in the conformation of hollow concrete poles that due to their length are manufactured, at least, according to two sections that must subsequently be linked together, so that an objective of the system that presents is to allow the execution of the joint board of the conforming sections thereof at the final location of the Pole, quickly and immediately, without the need for welding.
Otro objetivo del sistema de fabricación y unión de tramos de postes huecos de hormigón que se presenta es obtener una continuidad de las superficies externa e interna de los tramos conformantes del poste.Another objective of the manufacturing and joining system of stretches of hollow concrete posts that is presented is to obtain a continuity of the external and internal surfaces of the sections post shapers.
Asimismo, otro objetivo del sistema de fabricación y unión de tramos de postes huecos de hormigón que se presenta es obtener una resistencia mecánica de la junta de unión equivalente a la que debe soportar el poste en la sección de la junta de unión en las condiciones de trabajo para el que ha sido calculado, con su correspondiente coeficiente de seguridad.Also, another objective of the system of manufacture and joining of sections of hollow concrete posts presents is to obtain a mechanical strength of the joint equivalent to the one that the pole must support in the section of the union joint in the working conditions for which it has been calculated, with its corresponding safety coefficient.
Además, se trata de lograr los objetivos previstos con la necesidad de que el sistema sea viable económicamente.In addition, it is about achieving the objectives provided with the need for the system to be viable economically.
En la presente memoria se describe un sistema de fabricación y unión de tramos de postes huecos de hormigón armado y/o pretensado, el cual es de aplicación en la rápida unión de los tramos conformantes de postes huecos de hormigón en el lugar de emplazamiento de los mismos.This system describes a system of manufacture and joining of sections of hollow reinforced concrete posts and / or prestressed, which is applicable in the rapid union of conforming sections of hollow concrete posts in the place of location of them.
Convencionalmente, los postes huecos de hormigón que presentan una configuración general tronco cónica y que deben de tener una considerable altura, como, por ejemplo, 40 metros, son fabricados, normalmente, de acuerdo a dos tramos, denominados tramo de base y tramo de punta, que con posterioridad a su fabricación, deben de ser solidariamente unidos entre sí.Conventionally, hollow concrete posts that have a general conical trunk configuration and that should of having a considerable height, such as 40 meters, they are manufactured, normally, according to two sections, called base section and tip section, which after its manufacturing, must be jointly and severally united.
Así, en una conocida ejecución práctica los postes huecos de hormigón, de configuración general tronco cónica, son fabricados según dos tramos, de manera que una vez conformada la armadura metálica se colocará en el correspondiente molde de centrifugación, obteniéndose con el diámetro interno y externo deseado.Thus, in a known practical execution the hollow concrete posts, generally conical trunk configuration, they are manufactured according to two sections, so that once formed the metal armor will be placed in the corresponding mold of centrifugation, obtained with the internal and external diameter wanted.
Una vez fabricados los tramos conformantes del postes se deben de unir para la obtención del correspondiente poste, de forma que para la unión solidaria entre ellos, en relación a sus bases de adosamiento, presentan respectivas bridas de unión mediante tornillos.Once manufactured the conforming sections of the posts must be joined to obtain the corresponding post, so that for the solidarity union between them, in in relation to their bases, they have respective flanges of union by screws.
Con esta ejecución las bridas de unión atornillada sobresalen del perfil externo del poste, es decir, no presentan una continuidad en su superficie externa, presentando el inconveniente de no poder montar, respecto de la superficie externa guías de elevación y descenso de los elementos que puedan coronar el poste, como pueden ser elementos de iluminación o señalización.With this execution the connection flanges bolted protruding from the external profile of the post, that is, no present a continuity in its external surface, presenting the inconvenience of not being able to mount, with respect to the external surface lifting and lowering guides of the elements that can crown the post, such as lighting elements or signaling.
En la presente memoria se describe un sistema de fabricación y unión de tramos de postes huecos de hormigón armado y/o pretensado, siendo de utilidad en la fabricación de los dos tramos, de base y de punta, conformantes de un poste hueco de hormigón de considerable longitud, de forma general, ligeramente, tronco cónica hueca, de manera que la fabricación del tramo de base de hormigón armado comprende las siguientes fases:This system describes a system of manufacture and joining of sections of hollow reinforced concrete posts and / or prestressed, being useful in the manufacture of the two sections, base and tip, forming a hollow post of concrete of considerable length, generally, slightly, hollow conical trunk, so that the manufacture of the base section Reinforced concrete comprises the following phases:
a) fijación, por soldadura, a la armadura metálica de un cuerpo de unión de acero de superficie externa e interna ligeramente tronco piramidal;a) fixing, by welding, to the reinforcement metal of an external surface steel joint body e internal slightly pyramidal trunk;
b) centrifugación, en el correspondiente molde, de la armadura metálica junto con el cuerpo de unión solidario a ella, quedando éste sobresaliente, la mitad de su longitud, de la estructura; de hormigón;b) centrifugation, in the corresponding mold, of the metal reinforcement together with the joint body of solidarity to she, being this one outstanding, half of its length, of the structure; of concrete;
en tanto que la fabricación del tramo de punta comprende las siguientes fases:while manufacturing the tip section It comprises the following phases:
a) obtención del tramo de punta definiendo, en relación a la superficie interna de la base de fijación al tramo de base, un entrante de diámetro mayor al diámetro de revolución del cuerpo de unión solidario a la base de fijación del tramo de base y de altura semejante a la zona sobresaliente del mismo;a) obtaining the tip section by defining, in relation to the internal surface of the fixing base to the section of base, an incoming diameter larger than the revolution diameter of the joint body attached to the base fixing the base section and of height similar to the outstanding area of the same;
b) introducción, en posición horizontal centrada, del cuerpo de unión solidario a la base de fijación del tramo de base, con un postizo en su extremo, en la superficie interna de la base de fijación del tramo de punta, quedando ambos tramos de poste a una distancia, aproximada, de 1 cm.;b) introduction, horizontally centered, from the joint body to the fixing base of the base section, with a hairpiece at its end, on the surface internal of the fixation base of the tip section, both being Pole sections at a distance of approximately 1 cm .;
c) inyección de un mortero de alta resistencia rellenando el espacio definido entre la superficie externa del cuerpo de unión solidario a la base de fijación del tramo de base y la superficie interna del tramo de punta;c) injection of a high strength mortar filling in the defined space between the outer surface of the joint body attached to the base fixing the base section and the internal surface of the tip section;
d) separación del tramo de base y de punta, una vez que el mortero ha adquirido la adecuada consistencia.d) separation of the base and tip section, a Once the mortar has acquired adequate consistency.
Así, en fabrica se obtienen los dos tramos conformantes del correspondiente poste de hormigón armado y/o pretensado, de forma que el tramo de punta presenta una superficie de adosamiento del cuerpo de unión con el tramo de base, semejante al mismo al haber sido obtenida actuando aquel como molde de la misma.Thus, the two sections are obtained at the factory Conformers of the corresponding reinforced concrete post and / or prestressed, so that the tip section has a surface of attachment of the union body with the base section, similar to the same one having been obtained acting that one like mold of the same.
Por otra parte, el sistema de unión de tramos de postes huecos de hormigón armado y/o pretensado, de utilidad en la unión de los dos tramos, de base y de punta, conformantes de un poste hueco de hormigón de considerable longitud, de forma general, ligeramente, tronco cónica hueca, permite su ejecución en el lugar de emplazamiento, de manera que en la unión de ambos tramos de base y de punta, la superficie externa de la zona sobresaliente, respecto de la estructura de hormigón, del cuerpo de unión solidario al tramo de base, se impregna de un adhesivo expansivo y se introduce en la base de fijación del tramo de punta, rematando la operación de introducción a presión por unos medios de presión hasta adosar las bases de fijación de ambos tramos a unir.On the other hand, the joint system of sections of hollow posts of reinforced and / or prestressed concrete, useful in the union of the two sections, base and tip, forming a hollow concrete post of considerable length, shaped general, slightly, hollow conical trunk, allows its execution in the location, so that at the junction of both base and tip sections, the outer surface of the area outstanding, with respect to the concrete structure, of the body of joint bonding to the base section, it is impregnated with an adhesive expansive and is introduced into the fixation base of the tip section, finishing off the pressure introduction operation by means of pressure until the fixing bases of both sections are attached to link.
De esta forma, se obtiene un perfecto acoplamiento de las superficies en contacto de unión, permitiendo su rápida materialización en el lugar de emplazamiento del poste, con una superficie interna y externa continua y permitiendo su izado a las pocas horas de la unión.In this way, you get a perfect coupling of the surfaces in union contact, allowing its rapid materialization at the location of the post, with a continuous internal and external surface and allowing its hoisted a few hours after the union.
Para complementar la descripción que seguidamente se va a realizar, y con objeto de ayudar a una mejor comprensión de las características de la invención, se acompaña a la presente memoria descriptiva, de un juego de planos, en cuyas figuras de forma ilustrativa y no limitativa, se representan los detalles más característicos de la invención.To complement the description that then it will be done, and in order to help a better understanding of the features of the invention is accompanied by the present descriptive report, of a set of planes, in whose figures in an illustrative and non-limiting manner, the more characteristic details of the invention.
Figura 1. Muestra una vista seccionada en detalle del extremo de fijación de dos tramos a unir conformantes de un poste, pudiendo observar como en el extremo del tramo de base presenta un cuerpo de unión de superficie externa e interna ligeramente tronco piramidal a través del cual se materializa la unión.Figure 1. Shows a sectioned view in detail of the fixing end of two sections to join conformants of a post, being able to observe how at the end of the base section presents an external and internal surface joint body slightly pyramidal trunk through which the material materializes Union.
Figura 2. Muestra una vista seccionada en detalle del extremo de fijación de dos tramos a unir de un poste, pudiendo observar como el cuerpo de unión solidario al extremo de unión del tramo de base, en fabrica, se ha introducido en el extremo de unión del tramo de punta, quedando entre ellos un espacio libre que será rellenado con un mortero de alta resistencia y con ambos tramos de poste a una distancia, aproximada, de 1 cm.Figure 2. Shows a sectioned view in detail of the fixing end of two sections to join a post, being able to observe how the solidarity joint body at the end of union of the base section, in factory, has been introduced in the junction end of the tip section, leaving between them a free space that will be filled with a high strength mortar and with both pole sections at a distance of approximately 1 cm.
Figura 3. Muestra una vista seccionada en detalle del extremo de fijación de dos tramos a unir de un poste, pudiendo observar como, en el emplazamiento del poste, el cuerpo de unión, de forma general tronco piramidal, solidario al extremo de unión del tramo de base e impregnado de un adhesivo expansivo, se ha introducido en el extremo a unir del tramo de punta, adosándose al mortero de alta resistencia, con cuya superficie es complementario y con ambos tramos de poste separados, aproximadamente, 1 cm.Figure 3. Shows a sectioned view in detail of the fixing end of two sections to join a post, being able to observe how, in the location of the post, the body of union, generally pyramidal trunk, solidary at the end of joining the base section and impregnated with an expansive adhesive, has introduced at the end to join the tip section, attaching to the high strength mortar, whose surface is complementary and with both separate pole sections, approximately 1 cm.
Figura 4. Muestra una vista seccionada en detalle del extremo de fijación de dos tramos a unir de un poste, pudiendo observar como, en el emplazamiento del poste, el cuerpo de unión solidario al extremo de unión del tramo de base, se ha introducido, a presión, en el extremo del tramo de punta.Figure 4. Shows a sectioned view in detail of the fixing end of two sections to join a post, being able to observe how, in the location of the post, the body of solidarity joint to the end of the base section, has been introduced, under pressure, at the end of the tip section.
Figura 5. Muestra una vista frontal del cuerpo
de unión fabricado en acero, pudiendo observar como el mismo
presenta una sección externa e interna poligonal con una forma
general tronco pirami-
dal.Figure 5. It shows a front view of the union body made of steel, being able to observe how it presents a polygonal external and internal section with a general pyramidal trunk shape.
dal.
A la vista de las comentadas figuras y de acuerdo con la numeración adoptada podemos observar como el correspondiente poste de hormigón armado y/o pretensado y de forma general tronco cónico hueco, se conformará a partir de un tramo de base 1 y de un tramo de punta 2, quedando fijados por medio de un cuerpo 3 de unión solidario al tramo de base 1, estando fabricado el cuerpo 3 de unión, preferentemente, de acero.In view of the commented figures and of according to the numbering adopted we can observe how the corresponding reinforced concrete post and / or prestressed and shaped general hollow conical trunk, will be formed from a stretch of base 1 and a section of tip 2, being fixed by means of a body 3 of solidarity connection to the base section 1, being manufactured the connecting body 3, preferably of steel.
En la fabricación del tramo de base 1, el cuerpo 3 de unión fabricado en acero se fija, por soldadura, a la armadura metálica 5 del mismo, aproximadamente, según la mitad de su longitud, y, posteriormente, se colocan en el molde de centrifugación, de forma que el cuerpo 3 de unión queda introducido la mitad de su longitud en la estructura de hormigón armado y/o pretensado y la otra mitad queda sobresaliendo de la misma.In the manufacture of the base section 1, the body 3 union made of steel is fixed, by welding, to the reinforcement metal 5 thereof, approximately, according to half of its length, and subsequently placed in the mold of centrifugation, so that the connecting body 3 is introduced half of its length in the reinforced concrete structure and / or prestressed and the other half is protruding from it.
Por otra parte, en la fabricación del tramo de punta 2, en relación a la base de fijación al tramo de base 1 la superficie interna presenta un entrante 4 de diámetro ligeramente mayor al diámetro externo de revolución del cuerpo 3 de unión solidario al tramo de base 1 y de longitud semejante a la mitad de la longitud del cuerpo 3 de unión.On the other hand, in the manufacture of the section of tip 2, in relation to the fixing base to the base section 1 the internal surface has a slightly 4 diameter inlet greater than the external revolution diameter of the union body 3 in solidarity with the section of base 1 and of a length similar to half of the length of the union body 3.
Asimismo, en la propia fabrica al tramo de punta 2 se le aplica un mortero de alta resistencia en el entrante 4, para lo cual la parte sobresaliente del cuerpo 3 de unión solidario al tramo de base 1 se introduce, centradamente, en relación al entrante 4 del tramo de punta, quedando ambos tramos de base y de punta separados una pequeña distancia "d", por ejemplo 1 cm., de forma que entre la superficie externa del cuerpo 3 de unión y la superficie interna del entrante 4 queda un espacio 6 que se rellenará de un mortero 7 de alta resistencia.Also, in the factory itself to the tip section 2 a high-strength mortar is applied to the inlet 4, for which the protruding part of the joint body 3 of solidarity to the base section 1 is introduced, centered, in relation to the incoming 4 of the tip section, leaving both sections of base and tip separated a small distance "d", for example 1 cm., so that between the outer surface of the connecting body 3 and the internal surface of the recess 4 is a space 6 that will fill with a mortar 7 of high resistance.
Así, una vez que el mortero 7 ha adquirido la adecuada consistencia se procederá a la separación de ambos, de forma que en el tramo de punta 2 a fijar con el tramo de base 1 se habrá conformado una superficie interna homotética con la superficie externa del cuerpo 3 de unión.Thus, once the mortar 7 has acquired the adequate consistency will proceed to the separation of both, of so that in the tip section 2 to be fixed with the base section 1, will have formed a homothetic internal surface with the surface external body 3 union.
Lógicamente, el espacio 6 quedará perfectamente delimitado con objeto de que el mortero 7 defina una superficie interna continua homotética con la superficie externa del cuerpo 3 de unión, para lo cual se podrá hacer uso de elementos postizos que conformen y cierren perfectamente la oquedad a definir y rellenar.Logically, space 6 will fit perfectly delimited so that the mortar 7 defines a surface internal continuous homothetic with the external surface of the body 3 of union, for which it will be possible to make use of false elements that conform and close perfectly the cavity to define and Fill.
Una vez así obtenidos los tramos de base 1 y de punta 2, estarán preparados para su transporte al lugar de emplazamiento del poste para su unión en el mismo.Once obtained the sections of base 1 and of tip 2, they will be prepared for transport to the place of location of the post for attachment to it.
De esta forma, para la unión de los dos tramos de base 1 y de punta 2 conformantes del correspondiente poste, en el lugar de emplazamiento se disponen ambos en posición horizontal centrada en una bancada, siendo la zona sobresaliente del cuerpo 3 de unión impregnada de un adhesivo expansivo y procediéndose a la introducción del mismo en el tramo de punta 2, rematándose la introducción por unos medios de presión, tales como una pareja de tractel colocados longitudinalmente en dos generatrices enfrentadas diametralmente, hasta que las dos bases de fijación de ambos tramos a unir se adosen.In this way, for the union of the two sections of base 1 and tip 2 of the corresponding post, in the place of placement both are arranged horizontally centered on a bench, the projecting area of the body being 3 of union impregnated with an expansive adhesive and proceeding to the introduction of the same in the section of tip 2, finishing off the introduction by means of pressure, such as a pair of tractel placed longitudinally in two opposite generatrices diametrically, until the two fixing bases of both sections to join join.
Esto debe de ser así, dado que las superficies de contacto en la unión (cuerpo 3 - mortero 7) quedan contactando perfectamente entre ellas y se debe de presionar al actuar por planos inclinados, hasta hacer tope.This must be so, since the surfaces of contact in the union (body 3 - mortar 7) are contacted perfectly between them and must be pressed when acting for inclined planes, until they stop.
En definitiva, mediante el sistema que se presenta se permite:In short, through the system that Presents are allowed:
- \ding{169}\ ding {169}
- la ejecución de la junta de unión de los tramos conformantes del poste en el emplazamiento definitivo del mismo, de una forma rápida e izado inmediato, sin necesidad de soldadura. the execution of the board of union of the conforming sections of the post at the site definitive of it, in a quick and immediate way, without need welding.
- \ding{169}\ ding {169}
- obtener los postes con una total continuidad de las superficies externa e interna de los tramos conformantes del mismo. get the posts with a total continuity of the external and internal surfaces of the conformant sections of it.
- \ding{169}\ ding {169}
- obtener una junta de unión con la debida resistencia mecánica, equivalente a la que debe de soportar el poste en la sección de la junta de unión en las condiciones de trabajo para el que ha sido calculado, con su correspondiente coeficiente de seguridad. get a joint with the due mechanical resistance, equivalent to that of support the post in the joint joint section in the working conditions for which it has been calculated, with its corresponding safety coefficient.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200302327A ES2291053B1 (en) | 2003-10-07 | 2003-10-07 | MANUFACTURE AND UNION SYSTEM OF HOLLOW CONCRETE POSTS OF REINFORCED AND / OR PRETENSED CONCRETE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200302327A ES2291053B1 (en) | 2003-10-07 | 2003-10-07 | MANUFACTURE AND UNION SYSTEM OF HOLLOW CONCRETE POSTS OF REINFORCED AND / OR PRETENSED CONCRETE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2291053A1 ES2291053A1 (en) | 2008-02-16 |
| ES2291053B1 true ES2291053B1 (en) | 2009-03-01 |
Family
ID=39031134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200302327A Expired - Fee Related ES2291053B1 (en) | 2003-10-07 | 2003-10-07 | MANUFACTURE AND UNION SYSTEM OF HOLLOW CONCRETE POSTS OF REINFORCED AND / OR PRETENSED CONCRETE. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2291053B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1035407C2 (en) * | 2008-05-09 | 2009-11-11 | Martens Prefab Beton B V | Mast for use as electricity pylon, has foot affixed to ground by rolling resistance connection, where mast is divided into lower segment and upper segment on top of lower segment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1434730A1 (en) * | 1963-11-12 | 1970-01-15 | Moll Kg Leonhard | Process for the production of steel or prestressed concrete masts consisting of several detachably connected parts and multi-part concrete mast produced according to this process |
| CH691234A5 (en) * | 1996-06-21 | 2001-05-31 | Bsa Ingenieurs Conseils | A method of manufacturing a concrete mast, the device for implementing this method and pole obtained by this method. |
-
2003
- 2003-10-07 ES ES200302327A patent/ES2291053B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2291053A1 (en) | 2008-02-16 |
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