WO2003054321A1 - Prefabricated composite post for constructing a building vertical support structure consisting of at least a hollow cylindrical steel section - Google Patents

Prefabricated composite post for constructing a building vertical support structure consisting of at least a hollow cylindrical steel section Download PDF

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Publication number
WO2003054321A1
WO2003054321A1 PCT/FR2002/004298 FR0204298W WO03054321A1 WO 2003054321 A1 WO2003054321 A1 WO 2003054321A1 FR 0204298 W FR0204298 W FR 0204298W WO 03054321 A1 WO03054321 A1 WO 03054321A1
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WO
WIPO (PCT)
Prior art keywords
core
profile
envelope
post
concrete
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Application number
PCT/FR2002/004298
Other languages
French (fr)
Inventor
Jean-Paul Grimault
Original Assignee
Usinor
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
Publication date
Application filed by Usinor filed Critical Usinor
Priority to AU2002364828A priority Critical patent/AU2002364828A1/en
Publication of WO2003054321A1 publication Critical patent/WO2003054321A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/32—Columns; Pillars; Struts of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings

Definitions

  • Prefabricated composite pole for the construction of a vertical load-bearing structure of a building composed of at least one steel profile, hollow cylindrical.
  • the present invention relates to a prefabricated composite post for the construction of a vertical supporting building structure, composed of at least one hollow cylindrical steel profile.
  • This type of protection is generally implemented on site in order to avoid, for example, deterioration of the insulating layer during transport to the site in the case of implementation outside the site. It should be noted that the effectiveness of the protection is directly linked to the quality of its implementation on the steel profile of the post. Consequently, a correct placement of the insulation, without defect, requires, under site conditions, a lot of care and attention as well as a certain qualification of the workers. These conditions penalize the yield and the cost of the supporting structure.
  • Another fire protection technique for posts based on hollow sections consists in filling the steel section with concrete.
  • the fire resistance of the composite steel - concrete post varies depending on whether the concrete is fitted with reinforcing bars or not. This type of protection is notably described in documents GB1507450, JPO9041489, JPO8129055.
  • the steel profile constitutes the main load-bearing element.
  • the object of the invention is to overcome the drawbacks mentioned above by proposing a prefabricated composite post for the construction of a vertical bearing structure of a building composed of at least one cylindrical steel section having a guarantee of fire resistance in accordance with the regulations and being able to be assembled and assembled mechanically with beams of the standard profile type, for example, in I or in H.
  • this composite post of aesthetic quality, is economically interesting thanks to an industrial factory prefabrication.
  • the object of the invention is a prefabricated composite post for the construction of a vertical structure of a building composed of at least one hollow cylindrical steel profile, characterized in that it comprises, a cylindrical metallic profiled external envelope, a metallic core. axial, longitudinal, a fixing means located at one of its ends to ensure a connection with at least one beam of the building structure, a support and connection plate located at the other end, the internal space of the the envelope being divided by the core, into separate zones, each of the zones being partially or totally filled with concrete and / or insulating material.
  • Another object of the invention is a prefabricated composite post for the construction vertical structure of a building composed of at least one hollow cylindrical steel profile, characterized in that it comprises, a profiled outer envelope cylindrical metallic, an axial, longitudinal metallic core, a fixing means situated at one of its ends to ensure a connection with at least one beam or a post adjacent to the building structure, a support and connection plate located at the 'other end, the internal space of the envelope being divided by the core, into separate zones, each of the zones being partially or completely filled with concrete and / or insulating material.
  • the cylindrical envelope is of polygonal section, preferably square or rectangular, or circular.
  • the axial, longitudinal metallic core is a cylindrical hollow profile.
  • the fixing means with at least one beam of the building structure is composed of quadrilateral plates joined by one of their side to form a star profile.
  • the star profile carries, at the end, a polygonal plate hollowed out in its central part.
  • the plate is a square plate, pierced in its center, with a shaped hole corresponding to the section of the outer envelope.
  • the fixing means star profile, is a means of centering the metal core relative to the longitudinal axis of the envelope.
  • the charge of concrete and / or insulating material is inserted in the area between the envelope and the hollow profile core.
  • the charge of concrete and / or of insulating material is introduced into the zone situated between the envelope and the hollow profile core and into the central zone of said hollow profile, the concrete and / or the material insulating from the two zones being able to be composition and different properties.
  • Figure 1 shows an exemplary embodiment of the invention.
  • Figures 2a and 2b show fixing means for ensuring a connection with at least one frame of the building.
  • Figure 3 are two modes of construction of a pole according to the invention.
  • FIGS 4a and 4b show two other embodiments of the invention.
  • Figure 5 shows an example of a longitudinal connection mode of a post according to the invention with another adjacent post. It is known the use of cylindrical sections of circular or quadrilateral section associated with floor supporting beams to form a metallic building structure.
  • the cylindrical profiles are mounted vertically, associated with each other, end to end, to form a column, the floor beams being fixed to the external wall of the profiles or also mounted passing through said profiles, the concrete being brought in for filling.
  • profiles and floor formwork after mounting the structure.
  • the profile has only a formwork function. It then mechanically participates in the holding of the building as a metal frame for the column.
  • connection elements linking, during the assembly of the building structure, stacks with the floor beams.
  • the concrete load intended to fill the piles to form the posts
  • the post is also brought to the site during the construction of the building.
  • prefabricated elements are proposed, in particular posts, which are mounted on the site, which avoids construction by take-out and pouring of liquid concrete. Indeed, pouring of liquid concrete requires waiting a time for setting and obtaining its mechanical characteristics, time expressed in days.
  • the post according to the invention is a prefabricated composite post for the construction of a vertical load-bearing structure of a building composed of at least one steel profile, cylindrical, hollow.
  • the post 1, as shown in FIG. 1, is composed of at least one profiled steel casing 2, elongate, for example, cylindrical, comprising at one of its ends 3, a fixing means 4 for ensuring a connection with at least one building structure beam, and at the other end 5, a support and connection plate 6, all or part of the hollow profile being filled with concrete.
  • the post comprises, an axial metallic core 12, longitudinal and intended to ensure the load-bearing loads in the case where, by an effect of intense heating, the steel of the outer casing 2 lost these mechanical characteristics.
  • the core 12 is a hollow cylindrical profile.
  • the fixing means 4 shown in FIGS. 2a and 2b is made up of quadrilateral plates 7 joined by one of their sides 8 to form a star profile 9, the star profile 9 being able to bear at the end, a hollow polygonal plate 10.
  • the fixing means 4 in part 3 of the post, in its star-shaped profiled part 9, consists of flat bars for example, welded at right angles, the profile forming a cross.
  • the profile in the figures, in cross aims to ensure a connection, for example, by bolting, at the level of the plates 7 with metal beams of the structure, placed horizontally, for example of type I, or H .
  • the plate 10 is a plate, for example, square, pierced in its center with a hole 11 of shape corresponding to the section of the section 2 elongated hollow.
  • the star profile 9 is assembled to the envelope 2 coaxially, that is to say that the side 8 is placed in the longitudinal axis of the profile forming the envelope.
  • the plate 10, welded at the end of the cross section of the figure, is hollowed out to leave an opening for filling the concrete and / or thermal insulating material, in the internal space of the envelope 2. Its function is to ensure a connection, preferably bolted through the floor, with the support plate 6 of the corresponding post on the upper floor of the building.
  • the fixing means 4 in part 3 of the post can also be used as a longitudinal connecting element between two adjacent posts.
  • FIG. 5 presents such an example, where the quadrilateral plates of two adjacent posts 15 and 16 are connected by means of intermediate plates 17, for example bolted to the level of the plates 7. In this particular connection mode, the presence of the plate 10 is no longer required.
  • the post preferably comprises a casing 2 and a core 12 made up of two cylindrical profiles concentric defining separate areas.
  • the post is then formed by an outer casing 2, hollow profile, of transverse dimension greater than the inner profiled core 12, to form an annular zone allowing correct filling of concrete or cement grout and / or insulator ensuring thermal insulation. of the core 12 so that it retains all its resistance up to the limit of the time imposed by the fire regulations.
  • the outer casing 2 is the same length as the profiled core 12.
  • the two sections are mounted coaxially or centrally by means of a centering device 13 as shown in Figures 3a and 3b.
  • the simple device centering consists of rods 14 passing through the core 12 and now radially and coaxially, in a spacer, the outer casing 2.
  • the outer casing, centered, has notches corresponding to the plates 7 of the cross section. It is not necessarily welded.
  • the post preferably comprises two concentric hollow profiles generating two zones, one cylindrical, the other annular, one or both zones that can be loaded with concrete or cement and / or insulator.
  • the envelope and the core in the form of hollow sections, can be the subject of different possible combinations in the fields of their envisaged sections.
  • the profile of the internal core 12 can be made of steel with very high elastic limit. Such a composite post allows the transmission of significant bending moments even in the case of overheating resulting from a fire.
  • the outer casing 2 and the core 12 participate, at ambient temperature, in the resumption of the weighted service load which the post must ensure. Depending on the sudden warming in the event of a fire, the outer casing 2 loses its mechanical properties, and the profile of the inner core 12 then alone takes over the load.
  • the weighted load at room temperature is approximately 40% higher than the fire weighted load.
  • the advantage of the post, according to the invention lies in industrial manufacturing in the factory making it possible to provide building builders with ready-to-use structural components with a guarantee of quality and generating cost savings, time, and substantial manpower.
  • a first embodiment consists in assembling the composite post, before filling, with an insulator.
  • the fixing means is introduced into the hollow profile of the core and welded. The part thus obtained is slipped into the external envelope on which the internal plate is welded. Finally, the annular areas are filled with insulation and the hollow core can be filled with concrete.
  • a second embodiment consists, first, in assembling the profile of the core. We therefore start by making the connection device by assembling the cross by welding metal plates and the associated plate.
  • This plate can be full or hollowed out in the case of a possible bolting on the axial profile.
  • the fixing means is introduced into the hollow profile of the core and welded.
  • the insulator is then placed around the core thus obtained.
  • the composite post is made by sliding the core - insulator assembly into the external envelope on which the plate is welded.
  • the internal core can then be filled with concrete.
  • the support plate, at the base of the post, can be full or hollowed out.
  • Composite posts can be the subject of several possible combinations between the shapes of the external sections and those of the internal sections.
  • concentric hollow sections of steel section for example polygonal and preferably square or rectangular, or circular, allow the assembly to participate in the recovery of service loads.
  • the service charge is ensured by replacing the internal hollow profile which constitutes the core.
  • This differential recovery of forces is directly linked to the fixing means provided for assembling the beams of the structure to the post, fixing means which ensures a connection with at least one beam of the building structure, the profiled outer envelope and the plate. support also linking, mechanically, the post soul.
  • the internal space of the envelope is divided into zones partially or totally filled with concrete and / or insulating material.
  • the possible filling of the internal area of the profiled core with concrete can contribute to the structural resistance and / or to the fire resistance of the composite post.
  • the thermal transmission to the internal axial core is delayed thanks to the material, for example, insulating material placed in the zone located between the envelope and the profiled core and thanks, possibly, to the increase in thermal inertia due to the filling of the internal area of the core with concrete.
  • the fixing means to ensure a connection with at least one frame of the building, involves the external envelope and the core in the resumption of the service charges.
  • the envelope In the event of a fire, above a certain temperature, the envelope no longer participates in the mechanical resistance of the composite post and, in this case, only the core, protected, isolated, and still at a relatively low temperature. , takes over the so-called fire service charges.
  • the envelope forming the core In the case where the envelope forming the core is filled with concrete, it is the steel-concrete compound of the core which takes up the service loads and no longer the outer envelope of the post.
  • the external envelope is a formwork which, depending on the heating in the event of a fire, loses all load-bearing function, but it does participate, in normal use, at room temperature, in the resumption of the weighted service load which must secure a composite post.
  • the composite post and its fixing means to ensure a connection with at least one frame of the building, ensure an adequate transmission of the forces of the beams of the structure to the post by a cross connection.
  • the connection between the reinforcement beams and the post is simple to make because the said connection is integrated into the post and only the beams are to be linked to the post.
  • the post is prefabricated so that it is not necessary to associate in the mounting of the supporting structure, a joint or intermediate connection piece.
  • the prefabrication of the post opens the possibility of taking advantage of the advantages offered by the new steels with high mechanical characteristics.
  • the advantage of the composite post, according to the invention lies in particular in industrial factory manufacturing, making it possible to make available to manufacturers, structural components ready for use with a guarantee of product quality and generating savings. cost, time and labor.
  • the post allows the service charges to be taken up in a differential and complementary manner. This differential recovery of forces is directly linked to the fixing means provided for assembling the structural beams with said post.

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Abstract

The invention concerns a prefabricated composite post (1) for constructing a building vertical support structure consisting of at least a hollow cylindrical steel section (2), characterized in that it comprises: a cylindrical metallic shaped outer envelope (2), a longitudinal axial metallic core (12), fixing means (4) located at one of its ends (3) to provide a link with at least a beam of the building structure, a support and connection plate (6) located at the other end (5), the inner space of the envelope (2) being divided by the core (12), into separate zones, each of the zones being partly or entirely filled with concrete and/or insulating material.

Description

Poteau composite préfabriqué pour la construction de structure portante verticale de bâtiment composé d'au moins un profilé d'acier, cylindrique creux. Prefabricated composite pole for the construction of a vertical load-bearing structure of a building composed of at least one steel profile, hollow cylindrical.
La présente invention concerne un poteau composite préfabriqué pour la construction de structure portante verticale de bâtiment, composé d'au moins un profilé d'acier cylindrique creux.The present invention relates to a prefabricated composite post for the construction of a vertical supporting building structure, composed of at least one hollow cylindrical steel profile.
Les structures portantes verticales pour bâtiment sont soumises à d'importantes contraintes de résistance au feu et posent, de par leur complexité, des problèmes de fabrication et de montage sur chantier. En particulier, les poteaux à base de profilés creux et non protégés contre le feu ont une faible résistance intrinsèque lors d'un incendie. Différentes solutions permettent de répondre aux contraintes incendie et d'augmenter ainsi la résistance au feu des poteaux des structures portantes.Vertical load-bearing structures for buildings are subject to significant fire resistance constraints and, due to their complexity, pose manufacturing and assembly problems on site. In particular, the posts based on hollow profiles and not protected against fire have a low intrinsic resistance during a fire. Different solutions make it possible to respond to fire constraints and thus increase the fire resistance of the columns of the supporting structures.
Une de ces techniques de protection au feu se base sur la mise en place d'une isolation sur la face externe du poteau. Les procédés actuels consistent, soit à fixer des plaques isolantes, soit à placer ou projeter un matériau isolant en surface. Dans les deux cas, la résistance au feu du poteau va dépendre des propriétés thermiques de l'isolant utilisé et du facteur de massivité du profil en acier constituant l'ossature du poteau. Ce type de protection est par exemple décrit notamment dans les documents JP2000045418, JP54073415. Dans cette configuration, les charges de service à température ambiante sont reprises par le profilé en acier du poteau. Il en est de même dans le cas d'incendie, mais, quand l'acier perd sa résistance mécanique, le poteau ne résiste plus aux charges de service correspondantes et sa ruine survient rapidement.One of these fire protection techniques is based on the installation of insulation on the external face of the post. Current methods consist either in fixing insulating plates, or in placing or spraying an insulating material on the surface. In both cases, the fire resistance of the post will depend on the thermal properties of the insulation used and on the massiveness factor of the steel profile constituting the post framework. This type of protection is for example described in particular in the documents JP2000045418, JP54073415. In this configuration, the service loads at room temperature are taken up by the steel profile of the post. The same is true in the case of a fire, but when the steel loses its mechanical strength, the post can no longer resist the corresponding service loads and its ruin occurs quickly.
Ce type de protection est, en général, mis en œuvre sur chantier afin d'éviter, par exemple, une détérioration de la couche isolante lors du transport sur site dans le cas d'une mise en œuvre hors du chantier. Il convient de remarquer que l'efficacité de la protection est directement liée à la qualité de sa mise en œuvre sur le profilé en acier du poteau. Dès lors, un placement correct de l'isolant, sans défaut, requiert, dans des conditions de chantier, beaucoup de soins et d'attention ainsi qu'une certaine qualification des ouvriers. Ces conditions pénalisent le rendement et le coût de la structure portante.This type of protection is generally implemented on site in order to avoid, for example, deterioration of the insulating layer during transport to the site in the case of implementation outside the site. It should be noted that the effectiveness of the protection is directly linked to the quality of its implementation on the steel profile of the post. Consequently, a correct placement of the insulation, without defect, requires, under site conditions, a lot of care and attention as well as a certain qualification of the workers. These conditions penalize the yield and the cost of the supporting structure.
Une autre technique de protection au feu des poteaux à base de profilés creux consiste à remplir le profilé en acier par du béton. La résistance au feu du poteau mixte acier - béton varie selon que le béton est muni d'une armature de ronds à béton ou non. Ce type de protection est notamment décrit dans les documents GB1507450, JPO9041489, JPO8129055.Another fire protection technique for posts based on hollow sections consists in filling the steel section with concrete. The fire resistance of the composite steel - concrete post varies depending on whether the concrete is fitted with reinforcing bars or not. This type of protection is notably described in documents GB1507450, JPO9041489, JPO8129055.
A température ambiante, le profilé en acier constitue l'élément porteur principal.At room temperature, the steel profile constitutes the main load-bearing element.
Par contre, lors de l'incendie, la participation de l'acier à la résistance du poteau décroît au fil du temps et de l'élévation de température. Durant ce processus, une redistribution des contraintes s'effectue entre l'acier et le béton ; les charges de service à l'incendie sont alors reprises par le noyau en béton.On the other hand, during the fire, the participation of steel in the resistance of the post decreases over time and the rise in temperature. During this process, stress redistribution takes place between steel and concrete; the fire service charges are then taken up by the concrete core.
Dans la majorité des cas, les poteaux mixtes sont assemblés puis chargés en béton sur chantier. Les étapes de mise en œuvre sur le chantier sont les suivantes : les profilés creux sont montés sur place, le ferraillage éventuel est placé à l'intérieur des profilés creux et le poteau peut alors être rempli de béton. Cette fabrication nécessite une suite d'opérations différentes, entraînant une perte de temps et d'argent. En outre, elle est également tributaire des conditions météorologiques qui peuvent aussi être une source de retard dans la construction. Les deux types de protection peuvent être combinés comme par exemple, et notamment, dans les documents JP11303418, JPO8284531.In most cases, mixed posts are assembled and then loaded with concrete on site. The implementation steps on site are as follows: the hollow profiles are mounted on site, any reinforcement is placed inside the hollow profiles and the post can then be filled with concrete. This manufacturing requires a series of different operations, resulting in a loss of time and money. In addition, it is also dependent on weather conditions which can also cause delays in construction. The two types of protection can be combined, for example, and in particular, in documents JP11303418, JPO8284531.
Le but de l'invention est de pallier les inconvénients mentionnés ci-dessus en proposant un poteau composite préfabriqué pour la construction de structure portante verticale de bâtiment composé d'au moins un profilé cylindrique d'acier ayant une garantie de résistance au feu en conformité avec la réglementation et pouvant être monté et assemblé mécaniquement avec des poutres du type profilés normalisés, par exemple, en I ou en H. En outre, ce poteau composite, de qualité esthétique, est économiquement intéressant grâce à une préfabrication industrielle en usine.The object of the invention is to overcome the drawbacks mentioned above by proposing a prefabricated composite post for the construction of a vertical bearing structure of a building composed of at least one cylindrical steel section having a guarantee of fire resistance in accordance with the regulations and being able to be assembled and assembled mechanically with beams of the standard profile type, for example, in I or in H. In addition, this composite post, of aesthetic quality, is economically interesting thanks to an industrial factory prefabrication.
L'objet de l'invention est un poteau composite préfabriqué pour la construction structure verticale de bâtiment composé d'au moins un profilé d'acier cylindrique creux, caractérisé en ce qu'il comporte, une enveloppe extérieure profilée métallique cylindrique, une âme métallique axiale, longitudinale, un moyen de fixation situé à une de ses extrémités pour assurer une liaison avec au moins une poutre de la structure du bâtiment, une plaque d'appui et de liaison située à l'autre extrémité, l'espace interne de l'enveloppe étant divisé par l'âme, en zones séparées, chacune des zones étant partiellement ou totalement remplies de béton et/ou de matériau isolant.The object of the invention is a prefabricated composite post for the construction of a vertical structure of a building composed of at least one hollow cylindrical steel profile, characterized in that it comprises, a cylindrical metallic profiled external envelope, a metallic core. axial, longitudinal, a fixing means located at one of its ends to ensure a connection with at least one beam of the building structure, a support and connection plate located at the other end, the internal space of the the envelope being divided by the core, into separate zones, each of the zones being partially or totally filled with concrete and / or insulating material.
Un autre objet de l'invention est un poteau composite préfabriqué pour la construction structure verticale de bâtiment composé d'au moins un profilé d'acier cylindrique creux, caractérisé en ce qu'il comporte, une enveloppe extérieure profilée métallique cylindrique, une âme métallique axiale, longitudinale, un moyen de fixation situé à une de ses extrémités pour assurer une liaison avec au moins une poutre ou un poteau adjacent de la structure du bâtiment, une plaque d'appui et de liaison située à l'autre extrémité, l'espace interne de l'enveloppe étant divisé par l'âme, en zones séparées, chacune des zones étant partiellement ou totalement remplies de béton et/ou de matériau isolant.Another object of the invention is a prefabricated composite post for the construction vertical structure of a building composed of at least one hollow cylindrical steel profile, characterized in that it comprises, a profiled outer envelope cylindrical metallic, an axial, longitudinal metallic core, a fixing means situated at one of its ends to ensure a connection with at least one beam or a post adjacent to the building structure, a support and connection plate located at the 'other end, the internal space of the envelope being divided by the core, into separate zones, each of the zones being partially or completely filled with concrete and / or insulating material.
Les autres caractéristiques de l'invention sont :The other characteristics of the invention are:
- l'enveloppe cylindrique est de section polygonale, de préférence carrée ou rectangulaire, ou circulaire. - l'âme métallique axiale, longitudinale, est un profilé creux cylindrique.- The cylindrical envelope is of polygonal section, preferably square or rectangular, or circular. - the axial, longitudinal metallic core is a cylindrical hollow profile.
- le moyen de fixation avec au moins une poutre de la structure du bâtiment est composé de plaques quadrilatères accolées par un de leur coté pour former un profilé étoile.- The fixing means with at least one beam of the building structure is composed of quadrilateral plates joined by one of their side to form a star profile.
- le profilé étoile porte, en bout, une platine polygonale évidée dans sa partie centrale. - la platine est une plaque carrée, percée en son centre, d'un trou de forme correspondant à la section de l'enveloppe extérieure.- the star profile carries, at the end, a polygonal plate hollowed out in its central part. - The plate is a square plate, pierced in its center, with a shaped hole corresponding to the section of the outer envelope.
- le moyen de fixation, profilé étoile, est un moyen de centrage de l'âme métallique par rapport à l'axe longitudinal de l'enveloppe.- The fixing means, star profile, is a means of centering the metal core relative to the longitudinal axis of the envelope.
- la charge de béton et/ou de matériau isolant est insérée dans la zone située entre l'enveloppe et l'âme profil creux.- the charge of concrete and / or insulating material is inserted in the area between the envelope and the hollow profile core.
- la charge de béton et/ou de matériau isolant est introduit dans la zone située entre l'enveloppe et l'âme profil creux et dans la zone centrale dudit profil creux, le béton et/ou le matériau isolant des deux zones pouvant être de composition et de propriétés différentes. La description qui suit et les figures annexées, présentant les exemples de réalisation non limitatifs, feront bien comprendre l'invention.the charge of concrete and / or of insulating material is introduced into the zone situated between the envelope and the hollow profile core and into the central zone of said hollow profile, the concrete and / or the material insulating from the two zones being able to be composition and different properties. The description which follows and the appended figures, presenting the nonlimiting exemplary embodiments, will make the invention better understood.
La figure 1 présente un exemple de réalisation de l'invention.Figure 1 shows an exemplary embodiment of the invention.
Les figures 2a et 2b présentent des moyens de fixation pour assurer une liaison avec au moins une armature du bâtiment. La figure 3 sont deux modes de construction d'un poteau selon l'invention.Figures 2a and 2b show fixing means for ensuring a connection with at least one frame of the building. Figure 3 are two modes of construction of a pole according to the invention.
Les figures 4a et 4b présentent deux autres exemples de réalisation de l'invention.Figures 4a and 4b show two other embodiments of the invention.
La figure 5 présente un exemple de mode de liaison longitudinale d'un poteau selon l'invention avec un autre poteau adjacent. Il est connu l'usage de profilés cylindriques de section circulaire ou quadrilatère associés à des poutres porteuses de plancher pour former une structure métallique de bâtiment.Figure 5 shows an example of a longitudinal connection mode of a post according to the invention with another adjacent post. It is known the use of cylindrical sections of circular or quadrilateral section associated with floor supporting beams to form a metallic building structure.
Par exemple, les profilés cylindriques sont montés verticalement, associés les uns aux autres, bout à bout, pour former une colonne, les poutres du plancher étant fixées sur la paroi externe des profilés ou encore montés traversant lesdits profilés, le béton étant amené en remplissage des profilés et du coffrage du plancher après le montage de la structure. Dans ce type de structure, le profilé n'a qu'une fonction de coffrage. Il participe ensuite mécaniquement à la tenue du bâtiment en tant qu'armature métallique de la colonne.For example, the cylindrical profiles are mounted vertically, associated with each other, end to end, to form a column, the floor beams being fixed to the external wall of the profiles or also mounted passing through said profiles, the concrete being brought in for filling. profiles and floor formwork after mounting the structure. In this type of structure, the profile has only a formwork function. It then mechanically participates in the holding of the building as a metal frame for the column.
Il est également connu des éléments de connexion liant, lors du montage de la structure de bâtiment, des piles avec les poutres de plancher. Dans ce type d'installation, la charge de béton, destinée au remplissage des piles pour former les poteaux, est également apportée sur le chantier lors de la construction du bâtiment. Dans le domaine de la construction de bâtiment, il est proposé des éléments préfabriqués, notamment des poteaux, qui sont montés sur le chantier, ce qui évite une construction par emmenée et coulée de béton liquide. En effet, les coulées de béton liquide nécessitent d'attendre un temps pour la prise et l'obtention de ses caractéristiques mécaniques, temps s'exprimant en jours. Le poteau, selon l'invention, est un poteau composite préfabriqué pour la construction de structure portante verticale de bâtiment composé d'au moins un profilé d'acier, cylindrique, creux.It is also known connection elements linking, during the assembly of the building structure, stacks with the floor beams. In this type of installation, the concrete load, intended to fill the piles to form the posts, is also brought to the site during the construction of the building. In the field of building construction, prefabricated elements are proposed, in particular posts, which are mounted on the site, which avoids construction by take-out and pouring of liquid concrete. Indeed, pouring of liquid concrete requires waiting a time for setting and obtaining its mechanical characteristics, time expressed in days. The post according to the invention is a prefabricated composite post for the construction of a vertical load-bearing structure of a building composed of at least one steel profile, cylindrical, hollow.
Le poteau 1 , comme représenté sur la figure 1 , est composé d'au moins une enveloppe d'acier 2 profilée, longiligne, par exemple, cylindrique, comportant à une de ses extrémités 3, un moyen de fixation 4 pour assurer une liaison avec au moins une poutre de structure de bâtiment, et à l'autre extrémité 5, une plaque d'appui 6 et de liaison, tout ou partie du profilé creux étant rempli de béton.The post 1, as shown in FIG. 1, is composed of at least one profiled steel casing 2, elongate, for example, cylindrical, comprising at one of its ends 3, a fixing means 4 for ensuring a connection with at least one building structure beam, and at the other end 5, a support and connection plate 6, all or part of the hollow profile being filled with concrete.
Selon l'invention, le poteau comporte, une âme 12 métallique axiale, longitudinale et destinée à assurer les charges portantes dans le cas ou, par un effet de réchauffement intense, l'acier de l'enveloppe 2 extérieure perdait ces caractéristiques mécaniques. De préférence, l'âme 12 est un profilé cylindrique creux.According to the invention, the post comprises, an axial metallic core 12, longitudinal and intended to ensure the load-bearing loads in the case where, by an effect of intense heating, the steel of the outer casing 2 lost these mechanical characteristics. Preferably, the core 12 is a hollow cylindrical profile.
Le moyen de fixation 4, représenté sur les figures 2a et 2b, est composé de plaques 7 quadrilatères accolés par un de leurs cotés 8 pour former un profilé étoile 9, le profilé étoile 9 pouvant porter en bout, une platine 10 polygonale évidée. Le moyen de fixation 4 en partie 3 du poteau, dans sa partie profilée étoilée 9, se compose de fers plats par exemple, soudés en équerre, le profilé formant une croix. Le profilé sur les figures, en croix, a pour objet d'assurer une liaison, par exemple, par boulonnage, au niveau des plaques 7 avec des poutres métalliques de la structure, placées horizontalement, par exemple de type en I, ou en H.The fixing means 4, shown in FIGS. 2a and 2b, is made up of quadrilateral plates 7 joined by one of their sides 8 to form a star profile 9, the star profile 9 being able to bear at the end, a hollow polygonal plate 10. The fixing means 4 in part 3 of the post, in its star-shaped profiled part 9, consists of flat bars for example, welded at right angles, the profile forming a cross. The profile in the figures, in cross, aims to ensure a connection, for example, by bolting, at the level of the plates 7 with metal beams of the structure, placed horizontally, for example of type I, or H .
La platine 10 est une plaque par exemple, carrée, percée en son centre d'un trou 11 de forme correspondant à la section du profilé 2 creux longiligne. Sous cette forme, le profilé étoile 9 est assemblé à l'enveloppe 2 de façon coaxiale, c'est-à-dire que le coté 8 est placé dans l'axe longitudinal du profilé formant l'enveloppe. La platine 10, soudée en bout du profilé en croix de la figure, est évidée pour laisser une ouverture de remplissage du béton et/ou de matériau isolant thermique, dans l'espace interne de l'enveloppe 2. Elle a pour fonction d'assurer une liaison de préférence boulonnée au travers du plancher, avec la plaque d'appui 6 du poteau correspondant de l'étage supérieur du bâtiment. Le moyen de fixation 4 en partie 3 du poteau peut également être utilisé comme élément de liaison longitudinale entre deux poteaux adjacents. La figure 5 présente un tel exemple, où les plaques quadrilatères de deux poteaux adjacents 15 et 16 sont reliées au moyen de plaques intermédiaires 17, par exemple boulonnées au niveau des plaques 7. Dans ce mode de liaison particulier, la présence de la platine 10 n'est plus nécessaire.The plate 10 is a plate, for example, square, pierced in its center with a hole 11 of shape corresponding to the section of the section 2 elongated hollow. In this form, the star profile 9 is assembled to the envelope 2 coaxially, that is to say that the side 8 is placed in the longitudinal axis of the profile forming the envelope. The plate 10, welded at the end of the cross section of the figure, is hollowed out to leave an opening for filling the concrete and / or thermal insulating material, in the internal space of the envelope 2. Its function is to ensure a connection, preferably bolted through the floor, with the support plate 6 of the corresponding post on the upper floor of the building. The fixing means 4 in part 3 of the post can also be used as a longitudinal connecting element between two adjacent posts. FIG. 5 presents such an example, where the quadrilateral plates of two adjacent posts 15 and 16 are connected by means of intermediate plates 17, for example bolted to the level of the plates 7. In this particular connection mode, the presence of the plate 10 is no longer required.
Le profilé en croix, comme présenté sur les figures, est monté soudé, en extrémité 3 de l'enveloppe 2 en s'insérant dans quatre encoches aménagées longitudinalement dans le profilé creux formant l'enveloppe. Bien qu'un profil creux, associé au moyen de fixation 4 et à la plaque d'appui 6, constituent la forme la plus simple de l'invention, le poteau comporte de préférence une enveloppe 2 et une âme 12 constituées de deux profilés cylindres concentriques définissant des zones séparées.The cross section, as shown in the figures, is mounted welded, at the end 3 of the casing 2 by fitting into four notches arranged longitudinally in the hollow section forming the casing. Although a hollow profile, associated with the fixing means 4 and the support plate 6, constitute the simplest form of the invention, the post preferably comprises a casing 2 and a core 12 made up of two cylindrical profiles concentric defining separate areas.
Le poteau est alors constitué par une enveloppe 2 extérieure, profil creux, de dimension transversale supérieure à l'âme 12 profilée intérieure, pour former une zone annulaire permettant un remplissage correct de béton ou de coulis de ciment et/ou isolant assurant une isolation thermique de l'âme 12 afin qu'elle conserve toute sa résistance jusqu'à la limite du temps imposé par la réglementation incendie.The post is then formed by an outer casing 2, hollow profile, of transverse dimension greater than the inner profiled core 12, to form an annular zone allowing correct filling of concrete or cement grout and / or insulator ensuring thermal insulation. of the core 12 so that it retains all its resistance up to the limit of the time imposed by the fire regulations.
L'enveloppe 2 extérieure est de même longueur que l'âme 12 profilée. Les deux profilés sont montés de manière coaxiale ou de façon centrée grâce à un dispositif 13 de centrage comme présenté sur les figures 3a et 3b. Par exemple, le dispositif simple de centrage se compose de tiges 14 traversant l'âme 12 et maintenant de manière radiale et coaxiale, en entretoise, l'enveloppe extérieure 2. L'enveloppe externe, centrée, comporte des encoches en correspondance avec les plaques 7 du profilé en croix. Celui-ci n'est pas nécessairement soudé. Comme représenté sur les figures 4a et 4b, le poteau comporte de préférence deux profilés en creux concentriques générant deux zones, l'une cylindrique, l'autre annulaire, une ou les deux zones pouvant être chargées en béton ou ciment et/ou isolant.The outer casing 2 is the same length as the profiled core 12. The two sections are mounted coaxially or centrally by means of a centering device 13 as shown in Figures 3a and 3b. For example, the simple device centering consists of rods 14 passing through the core 12 and now radially and coaxially, in a spacer, the outer casing 2. The outer casing, centered, has notches corresponding to the plates 7 of the cross section. It is not necessarily welded. As shown in Figures 4a and 4b, the post preferably comprises two concentric hollow profiles generating two zones, one cylindrical, the other annular, one or both zones that can be loaded with concrete or cement and / or insulator.
L'enveloppe et l'âme, sous forme de profilés creux, peuvent faire l'objet de différentes combinaisons possibles dans les domaines de leurs sections envisagées. Pour gagner en performance, le profilé de l'âme 12 interne peut être réalisé en acier à très haute limite élastique. Un tel poteau composite permet la transmission de moments fléchissant importants même dans le cas d'un échauffement découlant d'un incendie.The envelope and the core, in the form of hollow sections, can be the subject of different possible combinations in the fields of their envisaged sections. To gain in performance, the profile of the internal core 12 can be made of steel with very high elastic limit. Such a composite post allows the transmission of significant bending moments even in the case of overheating resulting from a fire.
L'enveloppe 2 externe et l'âme 12 participent, à la température ambiante, à la reprise de la charge de service pondérée que doit assurer le poteau. En fonction de réchauffement subit en cas d'incendie, l'enveloppe 2 externe perd ses propriétés mécaniques, et le profilé de l'âme 12 interne assure alors, seul, la reprise de la charge.The outer casing 2 and the core 12 participate, at ambient temperature, in the resumption of the weighted service load which the post must ensure. Depending on the sudden warming in the event of a fire, the outer casing 2 loses its mechanical properties, and the profile of the inner core 12 then alone takes over the load.
On rappelle que la charge pondérée à température ambiante est environ 40% plus élevée que la charge pondérée incendie. L'intérêt du poteau, selon l'invention, réside dans une fabrication industrielle en usine permettant de mettre à la disposition des constructeurs de bâtiments, des composants structuraux prêts à l'emploi avec une garantie de qualité et engendrant des économies de coût, de temps, et de main d'œuvre substantielles.It is recalled that the weighted load at room temperature is approximately 40% higher than the fire weighted load. The advantage of the post, according to the invention, lies in industrial manufacturing in the factory making it possible to provide building builders with ready-to-use structural components with a guarantee of quality and generating cost savings, time, and substantial manpower.
Deux techniques de préfabrication du poteau composite sont à envisager selon le type d'isolant considéré.Two techniques for prefabrication of the composite post are to be considered depending on the type of insulation considered.
Un premier exemple de réalisation consiste à assembler le poteau composite, préalablement au remplissage, par un isolant. On commence donc par réaliser le moyen de fixation en assemblant la croix par soudure de plats métalliques et la platine associée. Cette platine est évidée pour faciliter la mise en place du matériau de remplissage des zones créées annulaires et éventuellement le boulonnage de l'âme centrale. Ensuite, le moyen de fixation est introduit dans le profil creux de l'âme et soudé. La pièce ainsi obtenue est glissée dans l'enveloppe externe sur laquelle on soude la platine intérieure. Enfin, les zones annulaires sont remplies avec l'isolant et l'âme creuse peut être remplie de béton. Un deuxième exemple de réalisation consiste, dans un premier temps, à assembler le profilé de l'âme. On commence donc par réaliser le dispositif de liaison en assemblant la croix par soudure de plats métalliques et la platine associée. Cette platine peut être pleine ou évidée dans le cas d'un éventuel boulonnage sur le profilé axial. Ensuite, le moyen de fixation est introduit dans le profil creux de l'âme et soudé. L'isolant est alors placé autour de l'âme ainsi obtenue. Le poteau composite est réalisé en glissant l'ensemble âme - isolant dans l'enveloppe externe sur laquelle on soude la platine. L'âme interne peut alors être remplie de béton. La plaque d'appui, à la base du poteau, peut être pleine ou évidée. Les poteaux composites peuvent faire l'objet de plusieurs combinaisons possibles entre les formes des sections externes et celles des sections internes.A first embodiment consists in assembling the composite post, before filling, with an insulator. We therefore begin by making the fixing means by assembling the cross by welding metal plates and the associated plate. This plate is hollowed out to facilitate the installation of the filling material of the annular created zones and possibly the bolting of the central core. Then, the fixing means is introduced into the hollow profile of the core and welded. The part thus obtained is slipped into the external envelope on which the internal plate is welded. Finally, the annular areas are filled with insulation and the hollow core can be filled with concrete. A second embodiment consists, first, in assembling the profile of the core. We therefore start by making the connection device by assembling the cross by welding metal plates and the associated plate. This plate can be full or hollowed out in the case of a possible bolting on the axial profile. Then, the fixing means is introduced into the hollow profile of the core and welded. The insulator is then placed around the core thus obtained. The composite post is made by sliding the core - insulator assembly into the external envelope on which the plate is welded. The internal core can then be filled with concrete. The support plate, at the base of the post, can be full or hollowed out. Composite posts can be the subject of several possible combinations between the shapes of the external sections and those of the internal sections.
Selon l'invention, l'utilisation de profilés creux concentriques en acier de section, par exemple polygonaux et de préférence carrés ou rectangulaires, ou circulaires, permettent à l'ensemble de participer à la reprise des charges de service. En cas d'incendie, la charge de service est assurée en remplacement par le profilé creux interne que constitue l'âme. Cette reprise différentielle des efforts est directement liée au moyen de fixation prévu pour assembler les poutres de la structure au poteau, moyen de fixation qui assure une liaison avec au moins une poutre de la structure du bâtiment, l'enveloppe extérieure profilée et de la plaque d'appui liant également, mécaniquement, l'âme du poteau.According to the invention, the use of concentric hollow sections of steel section, for example polygonal and preferably square or rectangular, or circular, allow the assembly to participate in the recovery of service loads. In the event of a fire, the service charge is ensured by replacing the internal hollow profile which constitutes the core. This differential recovery of forces is directly linked to the fixing means provided for assembling the beams of the structure to the post, fixing means which ensures a connection with at least one beam of the building structure, the profiled outer envelope and the plate. support also linking, mechanically, the post soul.
Comme présenté, l'espace interne de l'enveloppe est divisé en zones partiellement ou totalement rempli de béton et/ou de matériau isolant. Le remplissage de la zone annulaire, créé entre l'enveloppe cylindrique profilée et l'âme, au moyen un matériau choisi, retarde la transmission de la température vers l'âme intérieure et participe éventuellement à la résistance mécanique. Le remplissage éventuel de la zone interne à l'âme profilée par du béton peut participer à la résistance structurale et/ou à la résistance au feu du poteau composite. De ce fait, la transmission thermique à l'âme axiale intérieure est retardée grâce au matériau par exemple, isolant placé dans la zone située entre l'enveloppe et l'âme profilée et grâce, éventuellement, à l'augmentation de l'inertie thermique due au remplissage de la zone interne à l'âme, par du béton.As shown, the internal space of the envelope is divided into zones partially or totally filled with concrete and / or insulating material. The filling of the annular zone, created between the profiled cylindrical envelope and the core, by means of a chosen material, delays the transmission of the temperature towards the interior core and possibly participates in the mechanical resistance. The possible filling of the internal area of the profiled core with concrete can contribute to the structural resistance and / or to the fire resistance of the composite post. As a result, the thermal transmission to the internal axial core is delayed thanks to the material, for example, insulating material placed in the zone located between the envelope and the profiled core and thanks, possibly, to the increase in thermal inertia due to the filling of the internal area of the core with concrete.
Le moyen de fixation, pour assurer une liaison avec au moins une armature du bâtiment, fait participer l'enveloppe externe et l'âme à la reprise des charges de service. En cas d'incendie, au-dessus d'une certaine température, l'enveloppe ne participe plus à la résistance mécanique du poteau composite et, dans ce cas, seul l'âme, protégée, isolée, et encore à une température relativement basse, reprend les charges de service dit incendie. Dans le cas ou l'enveloppe formant l'âme est remplie de béton, c'est le composé acier - béton de l'âme qui reprend les charges de service et non plus l'enveloppe externe du poteau.The fixing means, to ensure a connection with at least one frame of the building, involves the external envelope and the core in the resumption of the service charges. In the event of a fire, above a certain temperature, the envelope no longer participates in the mechanical resistance of the composite post and, in this case, only the core, protected, isolated, and still at a relatively low temperature. , takes over the so-called fire service charges. In the case where the envelope forming the core is filled with concrete, it is the steel-concrete compound of the core which takes up the service loads and no longer the outer envelope of the post.
L'enveloppe externe est un coffrage qui, en fonction du réchauffement dans le cas d'un incendie, perd toute fonction portante, mais il participe bien, en utilisation normale, à température ambiante, à la reprise de la charge de service pondérée que doit assurer un poteau composite. Le poteau composite et son moyen de fixation, pour assurer une liaison avec au moins une armature du bâtiment, assurent une transmission adéquate des efforts des poutres de la structure vers le poteau par une connexion en croix. Sur chantier, la connexion entre poutres de l'armature et poteau est simple à réaliser car ladite connexion est intégrée au poteau et seules les poutres sont à lier au poteau. En d'autres termes, le poteau est préfabriqué de manière à ce qu'il ne soit pas nécessaire d'associer dans le montage de la structure portante, une pièce de jointure ou de connexion intermédiaire.The external envelope is a formwork which, depending on the heating in the event of a fire, loses all load-bearing function, but it does participate, in normal use, at room temperature, in the resumption of the weighted service load which must secure a composite post. The composite post and its fixing means, to ensure a connection with at least one frame of the building, ensure an adequate transmission of the forces of the beams of the structure to the post by a cross connection. On site, the connection between the reinforcement beams and the post is simple to make because the said connection is integrated into the post and only the beams are to be linked to the post. In other words, the post is prefabricated so that it is not necessary to associate in the mounting of the supporting structure, a joint or intermediate connection piece.
La préfabrication du poteau, selon l'invention, ouvre la possibilité de profiter des avantages offerts par les nouveaux aciers à hautes caractéristiques mécaniques. L'intérêt du poteau composite, selon l'invention, réside notamment, dans une fabrication industrielle en usine, permettant de mettre à la disposition des constructeurs, des composants structuraux prêts à l'emploi avec une garantie de qualité du produit et engendrant des économies substantielles de coût, de temps et de main d'œuvre. Le poteau permet de reprendre les charges de service de façon différentielle et complémentaire. Cette reprise différentielle des efforts est directement liée au moyen de fixation prévu pour l'assemblage des poutres de structure avec ledit poteau. The prefabrication of the post, according to the invention, opens the possibility of taking advantage of the advantages offered by the new steels with high mechanical characteristics. The advantage of the composite post, according to the invention, lies in particular in industrial factory manufacturing, making it possible to make available to manufacturers, structural components ready for use with a guarantee of product quality and generating savings. cost, time and labor. The post allows the service charges to be taken up in a differential and complementary manner. This differential recovery of forces is directly linked to the fixing means provided for assembling the structural beams with said post.

Claims

REVENDICATIONS
1. Poteau composite (1 ) préfabriqué pour la construction de structure portante verticale de bâtiment, composé d'au moins un profilé d'acier (2), cylindrique, creux, caractérisé en ce qu'il comporte, une enveloppe extérieure (2) profilée métallique cylindrique, une âme métallique axiale (12), longitudinale, un moyen de fixation (4) situé à une de ses extrémités (3) pour assurer une liaison avec au moins une poutre de la structure du bâtiment, ledit moyen de fixation (4) étant composé de plaques quadrilatères (7) accolées par un de leur coté (8) pour former un profilé étoile (9), une plaque d'appui et de liaison (6) située à l'autre extrémité (5), l'espace interne de l'enveloppe (2) étant divisé par l'âme (12), en zones séparées, chacune des zones étant partiellement ou totalement remplies de béton et/ou de matériau isolant.1. Composite post (1) prefabricated for the construction of a vertical load-bearing structure of a building, composed of at least one steel profile (2), cylindrical, hollow, characterized in that it comprises, an external envelope (2) cylindrical metal profile, an axial metal core (12), longitudinal, a fixing means (4) located at one of its ends (3) to ensure a connection with at least one beam of the building structure, said fixing means ( 4) being composed of quadrilateral plates (7) joined by one of their side (8) to form a star profile (9), a support and connection plate (6) located at the other end (5), l the internal space of the envelope (2) being divided by the core (12), into separate zones, each of the zones being partially or completely filled with concrete and / or insulating material.
2. Poteau composite (1) préfabriqué pour la construction de structure portante verticale de bâtiment, composé d'au moins un profilé d'acier (2), cylindrique, creux, caractérisé en ce qu'il comporte, une enveloppe extérieure (2) profilée métallique cylindrique, une âme métallique axiale (12), longitudinale, un moyen de fixation (4) situé à une de ses extrémités (3) pour assurer une liaison avec au moins une poutre ou un poteau adjacent de la structure du bâtiment, ledit moyen de fixation (4) étant composé de plaques quadrilatères (7) accolées par un de leur coté (8) pour former un profilé étoile (9), une plaque d'appui et de liaison (6) située à l'autre extrémité (5), l'espace interne de l'enveloppe (2) étant divisé par l'âme (12), en zones séparées, chacune des zones étant partiellement ou totalement remplies de béton et/ou de matériau isolant.2. composite post (1) prefabricated for the construction of a vertical bearing structure of a building, composed of at least one steel section (2), cylindrical, hollow, characterized in that it comprises, an external envelope (2) cylindrical metal profile, an axial metal core (12), longitudinal, a fixing means (4) located at one of its ends (3) to ensure a connection with at least one beam or post adjacent to the building structure, said fixing means (4) being composed of quadrilateral plates (7) joined by one of their side (8) to form a star profile (9), a support and connection plate (6) located at the other end ( 5), the internal space of the envelope (2) being divided by the core (12), into separate zones, each of the zones being partially or completely filled with concrete and / or insulating material.
3. Poteau selon la revendication 1 ou 2 caractérisé en ce que l'enveloppe cylindrique (2) est de section polygonale, de préférence carrée ou rectangulaire, ou circulaire.3. Post according to claim 1 or 2 characterized in that the cylindrical envelope (2) is of polygonal section, preferably square or rectangular, or circular.
4. Poteau selon la revendication 1 ou 2 caractérisé en ce que l'âme métallique axiale, (12) longitudinale, est un profilé creux cylindrique.4. Post according to claim 1 or 2 characterized in that the axial metallic core, (12) longitudinal, is a cylindrical hollow profile.
5. Poteau selon la revendication 1 caractérisé en ce que le profilé étoile (9) porte, en bout, une platine polygonale (10) évidée dans sa partie centrale. 5. Post according to claim 1 characterized in that the star profile (9) carries, at the end, a polygonal plate (10) hollowed out in its central part.
6. Poteau selon la revendication 5 caractérisé en ce que la platine (10) est une plaque carrée, percée en son centre, d'un trou (11 ) de forme correspondant à la section de l'enveloppe extérieure (2).6. Post according to claim 5 characterized in that the plate (10) is a square plate, pierced in its center, with a hole (11) of shape corresponding to the section of the outer casing (2).
7. Poteau selon l'une quelconque des revendications 1 à 6 caractérisé en ce que le moyen de fixation (4), profilé étoile (9), est un moyen de centrage de l'âme métallique (12) par rapport à l'axe longitudinal de l'enveloppe (2).7. Post according to any one of claims 1 to 6 characterized in that the fixing means (4), star profile (9), is a means of centering the metal core (12) relative to the axis longitudinal of the envelope (2).
8. Poteau selon la revendication 1 ou 2 caractérisé en ce que la charge de béton et/ou de matériau isolant est insérée dans la zone située entre l'enveloppe (2) et l'âme profil creux (12).8. Post according to claim 1 or 2 characterized in that the load of concrete and / or insulating material is inserted in the area between the envelope (2) and the hollow profile core (12).
9. Poteau selon la revendication 1 ou 2 caractérisé en ce que la charge de béton et/ou de matériau isolant est introduite dans la zone située entre l'enveloppe (2) et l'âme profil creux (12) et dans la zone centrale dudit profil creux (12), le béton et/ou le matériau isolant des deux zones pouvant être de composition et de propriétés différentes. 9. Post according to claim 1 or 2 characterized in that the load of concrete and / or insulating material is introduced into the area between the envelope (2) and the hollow profile core (12) and in the central area of said hollow profile (12), the concrete and / or the material insulating the two zones may be of different composition and properties.
PCT/FR2002/004298 2001-12-14 2002-12-12 Prefabricated composite post for constructing a building vertical support structure consisting of at least a hollow cylindrical steel section WO2003054321A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002364828A AU2002364828A1 (en) 2001-12-14 2002-12-12 Prefabricated composite post for constructing a building vertical support structure consisting of at least a hollow cylindrical steel section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR01/16184 2001-12-14
FR0116184A FR2833632B1 (en) 2001-12-14 2001-12-14 PREFABRICATED COMPOSITE POST FOR THE CONSTRUCTION OF A VERTICAL LOADING STRUCTURE OF A BUILDING COMPOSED OF AT LEAST ONE STEEL PROFILE, HOLLOW CYLINDER

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WO2005085562A1 (en) * 2004-03-03 2005-09-15 Cadwell Charles E Composite telephone pole
WO2007036813A2 (en) * 2005-09-29 2007-04-05 Bernard Douet Composite column
WO2007066228A2 (en) * 2005-09-29 2007-06-14 Bernard Douet Composite pillar for junction connections on constructions and building frames
DE102006041741A1 (en) * 2006-09-04 2008-04-03 Alstom Technology Ltd. Boiler structure for a steam generator in a power station comprises several vertically arranged boiler supports each having a vertically extending concrete cores and a steel wall enclosing the concrete core
CN103993701A (en) * 2014-06-03 2014-08-20 中国建筑第二工程局有限公司 Petal-shaped concrete column and construction method thereof
CN104652704A (en) * 2015-01-28 2015-05-27 查晓雄 Connected installation and calculation methods for inner pipes and outer pipes of pipe-in-pipe concrete-filled steel tube tension members
JP2017061820A (en) * 2015-09-25 2017-03-30 大成建設株式会社 Concrete-infilled double steel pipe column and construction method for the same
CN110230370A (en) * 2019-06-17 2019-09-13 华北理工大学 Connection structure, steel tube concrete superposed column and construction method
US11142911B2 (en) 2019-06-17 2021-10-12 North China University Of Science And Technology Connection structure, concrete-encased concrete-filled steel tube column and construction method

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ITVI20110140A1 (en) * 2011-05-27 2012-11-28 Andrea Ballini FORMWORK FOR COLUMNS OR PILLARS OF BUILDINGS, COLUMN OR PILLAR INCLUDING THE FORMWORK AND METHOD FOR BUILDING THE COLUMN
ES2769054T3 (en) 2017-03-23 2020-06-24 Ipr Intelligente Peripherien Fuer Roboter Gmbh Robot system with support rail and robot platform
EP3441524A1 (en) 2017-08-11 2019-02-13 IPR-Intelligente Peripherien für Roboter GmbH Support rail for a translative robotic platform
CN114215271B (en) * 2022-01-15 2023-03-21 福建省川工建设工程有限公司 Improved steel structure upright post

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US1571091A (en) * 1923-10-30 1926-01-26 Lally John Fireproof building construction
US3050161A (en) * 1958-04-14 1962-08-21 Abraham E Shlager Square column
GB1263051A (en) * 1967-11-07 1972-02-09 Parking Systems Ltd Improvements in or relating to building structures
US3913953A (en) * 1972-02-25 1975-10-21 Arlo Inc Twist lock joint for concrete filled, telescoping sections
US5012622A (en) * 1985-03-05 1991-05-07 Shimizu Construction Co., Ltd. Structural filler filled steel tube column
DE4407000A1 (en) * 1993-04-15 1994-10-20 Klaus Dipl Ing Ungerer Round support for constructing buildings
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426807B2 (en) 2004-03-03 2008-09-23 Charles E Cadwell Composite telephone pole
WO2005085562A1 (en) * 2004-03-03 2005-09-15 Cadwell Charles E Composite telephone pole
WO2007036813A2 (en) * 2005-09-29 2007-04-05 Bernard Douet Composite column
WO2007066228A2 (en) * 2005-09-29 2007-06-14 Bernard Douet Composite pillar for junction connections on constructions and building frames
WO2007066228A3 (en) * 2005-09-29 2007-10-04 Bernard Douet Composite pillar for junction connections on constructions and building frames
WO2007036813A3 (en) * 2005-09-29 2007-10-04 Bernard Douet Composite column
DE102006041741A1 (en) * 2006-09-04 2008-04-03 Alstom Technology Ltd. Boiler structure for a steam generator in a power station comprises several vertically arranged boiler supports each having a vertically extending concrete cores and a steel wall enclosing the concrete core
CN103993701B (en) * 2014-06-03 2016-05-18 中国建筑第二工程局有限公司 Petal-shaped concrete column and construction method thereof
CN103993701A (en) * 2014-06-03 2014-08-20 中国建筑第二工程局有限公司 Petal-shaped concrete column and construction method thereof
CN104652704A (en) * 2015-01-28 2015-05-27 查晓雄 Connected installation and calculation methods for inner pipes and outer pipes of pipe-in-pipe concrete-filled steel tube tension members
CN104652704B (en) * 2015-01-28 2017-04-19 查晓雄 Connected installation and calculation methods for inner pipes and outer pipes of pipe-in-pipe concrete-filled steel tube tension members
JP2017061820A (en) * 2015-09-25 2017-03-30 大成建設株式会社 Concrete-infilled double steel pipe column and construction method for the same
CN110230370A (en) * 2019-06-17 2019-09-13 华北理工大学 Connection structure, steel tube concrete superposed column and construction method
CN110230370B (en) * 2019-06-17 2020-05-22 华北理工大学 Connecting structure, steel pipe concrete composite column and construction method
WO2020252821A1 (en) * 2019-06-17 2020-12-24 华北理工大学 Connecting structure, concrete-filled steel pipe column, and construction method
US11142911B2 (en) 2019-06-17 2021-10-12 North China University Of Science And Technology Connection structure, concrete-encased concrete-filled steel tube column and construction method

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FR2833632B1 (en) 2004-06-11
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