ES1065630U

ES1065630U - Prefabricated snail ladder (Machine-translation by Google Translate, not legally binding)

Info

Publication number: ES1065630U
Application number: ES200701124U
Authority: ES
Inventors: Pedro Trigo Tomey
Original assignee: Dragados SA
Current assignee: Dragados SA
Priority date: 2007-05-28
Filing date: 2007-05-28
Publication date: 2007-10-01
Anticipated expiration: 2017-05-28
Also published as: ES1065630Y

Abstract

Prefabricated spiral staircase, which has a modular configuration that defines a series of steps in the form of circular sector coupled together, essentially characterized in that each staircase module (1) has a reinforced concrete structure, with a uniform thickness and equivalent to the height of the step, which defines a central annular zone (12), provided with a radial emergency (11) in the form of a circular sector constituting the actual step, as well as a means of stacking two consecutive steps helically forming an equivalent angle to the circular sector that constitutes the rung (11). (Machine-translation by Google Translate, not legally binding)

Description

Escalera de caracol prefabricada.Prefabricated spiral staircase.

Object of the invention

La presente invención se refiere a una escalera de caracol prefabricada, con una configuración modular en la que cada módulo define un peldaño en forma de sector circular; de modo que al acoplarlas forman un ángulo equivalente al que define cada peldaño de la escalera, conformando una estructura helicoidal con una columna central cilíndrica.The present invention relates to a ladder of prefabricated snail, with a modular configuration in which each module defines a step in the form of a circular sector; so that when coupled they form an angle equivalent to that defined by each stair step, forming a helical structure with a cylindrical central column.

Background of the invention

Las escaleras de caracol por su uniformidad son elementos que tradicionalmente se montan a partir de peldaños prefabricados, que se integran en una columna común; estos peldaños se fabrican normalmente en acero galvanizado o en madera y su montaje resulta bastante sencillo cuando la estructura está correctamente replanteada.The spiral stairs for their uniformity are elements that are traditionally mounted from steps prefabricated, which are integrated into a common column; these steps They are normally manufactured in galvanized steel or wood and their assembly is quite simple when the structure is correctly rethought.

Este tipo de escaleras se han instalado para acceder desde las vías del metro a la plataforma de los ventiladores, que están a nivel de calle en los pozos de ventilación, y en otros lugares de acceso restringido, en ambientes altamente contaminados o con humedad relativa elevada, normalmente realizadas en acero galvanizado. Sin embargo, se ha observado que después de un corto periodo de tiempo la estructura metálica de estas escaleras está totalmente desecha por la corrosión.These types of stairs have been installed to access from the subway tracks to the platform of the fans, which are at street level in the wells of ventilation, and in other places with restricted access, in environments highly contaminated or with high relative humidity, normally made of galvanized steel. However, it has been observed that after a short period of time the metal structure of These stairs are completely scrapped by corrosion.

El problema se resolvería con una escalera con zanca prefabricada de acero inoxidable, pero es muy cara; o con una escalera de hormigón, pero su ejecución, coste y plazo son elevados al tener que cimbrar escaleras de unos 30 m de altura en determinadas ocasiones.The problem would be solved with a ladder with prefabricated stainless steel stride, but it is very expensive; or with a concrete staircase, but its execution, cost and term are high having to form stairs about 30 m high in certain occasions

Description of the invention

Para solucionar este problema, se ha diseñado una escalera de caracol a base de módulos prefabricados de hormigón, que se colocan unos encima de otros y que van guiados por un perfil metálico a modo de espiga. Una vez montada una altura determinada de escalera, normalmente una vuelta completa, se hormigona el hueco interior de la misma arriostrando así la escalera.To solve this problem, it has been designed a spiral staircase based on prefabricated modules of concrete, which are placed on top of each other and are guided by a metal profile as a spike. Once mounted a height determined of stairs, usually a complete turn, is concretes the inner hollow of the same bracing the stairs.

En la escalera de la presente invención cada módulo de escalera presenta una estructura de hormigón armado de grosor uniforme y equivalente a la altura del peldaño, que define una zona central anular, que define la columna central, y está provista de una emergencia radial en forma de sector circular, que constituye el peldaño propiamente dicho.On the ladder of the present invention each Ladder module features a reinforced concrete structure of uniform thickness and equivalent to the height of the step, which defines an annular central zone, which defines the central column, and is provided with a radial emergency in the form of a circular sector, which constitutes the step itself.

Cada uno de los módulos presenta unos medios de apilamiento entre dos módulos consecutivos constituidos por un rebaje y una cuña, situadas en la zona central anular y radialmente desplazadas un ángulo equivalente al que forma el peldaño, que facilitan el acoplamiento por machihembrado de dos peldaños apilados, en posición desplazada o rotada helicoidalmente un ángulo equivalente al que forma el
peldaño.Each of the modules has stacking means between two consecutive modules consisting of a recess and a wedge, located in the central annular area and radially displaced an angle equivalent to that formed by the step, which facilitate the tongue and groove coupling of two stacked steps , in an offset or helically rotated position, an angle equivalent to that formed by the
step.

Cada unidad modular presenta en la zona central una ventana circular que una vez apilados varios módulos forma una columna cilíndrica, que se hormigona armándola con una estructura metálica o con un perfil metálico interior para darle rigidez y estabilidad a la construcción.Each modular unit presents in the central zone a circular window that once stacked several modules forms a cylindrical column, which is concreted by arming it with a structure metallic or with an internal metal profile to give it rigidity and construction stability

En una realización preferencial cada peldaño presenta un ángulo ligeramente mayor que el que forman entre sí los medios de apilamiento antes mencionados, de forma que queda una banda de solapamiento entre dos peldaños consecutivos cuando se produce el apilamiento o montaje de la escalera.In a preferred embodiment each step It has an angle slightly greater than that formed by each other stacking means mentioned above, so that a overlapping band between two consecutive steps when It produces the stacking or assembly of the ladder.

Con unidades iguales, con el mismo ángulo se forma una escalera uniforme, no obstante cuando se desea formar un descansillo se prevén unidades modulares que presentan peldaño con un ángulo sensiblemente mayor que un peldaño normal, por ejemplo el triple o el doble que un peldaño normal y se sitúan a la altura y en la zona conveniente.With equal units, with the same angle you form a uniform ladder, however when you want to form a Modular units are provided that have a step with an angle significantly greater than a normal step, for example triple or double than a normal rung and stand up to and in the convenient area.

Description of the figures

Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, with character Illustrative and not limiting, the following has been represented:

La figura 1 representa sendas vistas en alzado y planta superior de una escalera de caracol realizada conforme a la presente invención.Figure 1 represents elevation views and upper floor of a spiral staircase made according to the present invention

La figura 2 muestra sendas vistas en planta y alzado de una unidad (1) que conforma una escalera de este tipo.Figure 2 shows paths seen in plan and elevation of a unit (1) that forms a staircase of this kind.

La figura 3 representa la sección señalada en la figura anterior.Figure 3 represents the section indicated in the previous figure.

Preferred Embodiment of the Invention

Como se puede observar en las figuras referenciadas la escalera caracol aquí preconizada está formada por peldaños (1) y (2) prefabricados de hormigón armado alrededor de una pila cilíndrica (3) central, vertical, que integra preferentemente una estructura o un perfil metálico que queda embebido en hormi-
gón.As can be seen in the referenced figures, the spiral staircase recommended here is formed by steps (1) and (2) prefabricated reinforced concrete around a central, vertical cylindrical stack (3), which preferably integrates a metal structure or profile that is embedded in hormi-
Gon.

Los peldaños prefabricados presentan un anillo central (12) con una ventana central (13) que en el ejemplo de realización tienen las siguientes dimensiones: el anillo 0,90 m de diámetro interior y 0,30 m de ancho, lo que da un diámetro exterior de 1,50 m. Exteriormente el anillo central presenta una emergencia radial (11) que forma el peldaño propiamente dicho, el cual tiene una longitud de 1,10 m en el ejemplo representado.The prefabricated steps have a ring central (12) with a central window (13) than in the example of embodiment have the following dimensions: the ring 0.90 m of inner diameter and 0.30 m wide, which gives an outer diameter of 1.50 m. Externally the central ring presents an emergency radial (11) that forms the step itself, which has a length of 1.10 m in the example shown.

Como se observa en la figura 1 los peldaños (1) van girando alrededor del eje cada 16º. La altura de cada peldaño es 20 mm., de forma que 15 peldaños, con un giro de 15x16 = 240º dan una altura de
3,00 m.As can be seen in figure 1, the steps (1) rotate around the axis every 16º. The height of each step is 20 mm., So that 15 steps, with a turn of 15x16 = 240º give a height of
3.00 m

Las dimensiones de los peldaños se han fijado para que sean estables, según se van colocando. Para favorecer dicha colocación, cada peldaño va provisto de un rebaje de anclaje (16) y una cuña de anclaje (15), de manera que dos peldaños consecutivos encajan perfectamente y se favorece su fijación. En una realización alternativa existe una banda de solape (14) entre dos peldaños consecutivos.The dimensions of the steps have been fixed so that they are stable, as they are placed. To favor said placement, each step is provided with an anchor recess (16) and an anchor wedge (15), so that two steps Consecutive fit perfectly and fixation is favored. In an alternative embodiment there is an overlap band (14) between Two consecutive steps.

Para los descansillos se ha proyectado una pieza especial (2), también prefabricada, equivalente a tres peldaños en planta, de la misma tipología que los peldaños, con las dimensiones adecuadas. Estos descansillos se anclan en el perfil de la pila central para asegurar su estabilidad.For the recesses a piece has been projected special (2), also prefabricated, equivalent to three steps in plant, of the same typology as the steps, with the dimensions adequate. These rests are anchored in the pile profile central to ensure its stability.

Una vez prefabricados los peldaños y los descansillos necesarios para construir la escalera de caracol, según la altura necesaria, el proceso de montaje de los diferentes elementos es muy sencillo y se efectúa en los pasos siguientes:Once the steps and the prefabricated necessary rests to build the spiral staircase, according to the necessary height, the assembly process of the different Elements is very simple and is done in the following steps:

1.one.: Montaje del perfil metálico en el eje de la pila, de una altura a fijar en obra.Mounting the metal profile on the shaft of the pile, of a height to fix in work.

2.2.: Colocación de los peldaños prefabricados alrededor del perfil metálico de la pila. Cada peldaño fijado 16º respecto al precedente. Con 15 peldaños se consiguen 3,00 m de altura.Placement of the steps prefabricated around the metal profile of the stack. Every step set 16º with respect to the previous one. With 15 steps you get 3.00 m height

3.3.: Colocación del descansillo prefabricado, anclado al perfil metálico de la pila para asegurar su estabilidad.Placement of the landing prefabricated, anchored to the metal profile of the battery to ensure its stability

4.Four.: Hormigonado de la pila central; los anillos de los peldaños sirven de encofrado a la pila.Concreting of the central stack; the Rung rings serve as a formwork for the pile.

5.5.: Repetición del proceso hasta alcanzar la altura total necesaria.Repeat the process until reaching Total height needed.

Una vez hormigonada la pila central se coloca el peto de ladrillo que protege el hueco de la escalera por el exterior.Once the central stack is concreted, the brick breastplate that protects the stairwell by the Exterior.

Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación.Once nature is sufficiently described of the invention, as well as a preferred embodiment, for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not involve an alteration of the essential features of the invention claimed in continuation.

Claims

1. Prefabricated spiral staircase, which has a modular configuration that defines a series of circular-shaped steps that can be coupled together, essentially characterized in that each stair module (1) has a reinforced concrete structure, with a uniform thickness and equivalent to the height of the step, which defines an annular central zone (12), provided with a radial emergency (11) in the form of a circular sector that constitutes the step itself, as well as means for stacking two consecutive steps helically forming an equivalent angle to the circular sector that constitutes the step (11).

2. Ladder, according to the preceding claim, characterized in that the stacking means consist of a recess (16) and a wedge (15), located in the central annular area (12), radially displaced by an angle equivalent to that formed by the step ( 11), which facilitate the tongue-and-groove coupling of two stacked steps, in a displaced or helically rotated position.

3. Ladder, according to the preceding claims, characterized in that each modular unit (1) has in the central area a circular window (13) that, when stacking several modules, forms a cylindrical column, which is concreted with a metal profile located in its inside.

4. Ladder, according to the preceding claims, characterized in that each step (11) has an angle slightly greater than that formed by the stacking means (15-16) so that there is an overlapping band (14) between two steps consecutive.

5. Ladder, according to the preceding claims, characterized in that modular units (2) having a step with an angle substantially greater than a normal step (1), which are located at the convenient height to form a landing, are provided.