EP1350898A1 - Procede de fabrication d'une plaque alveolaire legere materialisee en chantier, plaque ainsi obtenue et son application dans des logements - Google Patents

Procede de fabrication d'une plaque alveolaire legere materialisee en chantier, plaque ainsi obtenue et son application dans des logements Download PDF

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Publication number
EP1350898A1
EP1350898A1 EP01929662A EP01929662A EP1350898A1 EP 1350898 A1 EP1350898 A1 EP 1350898A1 EP 01929662 A EP01929662 A EP 01929662A EP 01929662 A EP01929662 A EP 01929662A EP 1350898 A1 EP1350898 A1 EP 1350898A1
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Prior art keywords
site
concrete
ribs
cellular
fabrication
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EP01929662A
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German (de)
English (en)
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Jaime Enrique Jimenez Sanchez
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element

Definitions

  • the present invention refers to a procedure for the fabrication of light cellular forms of prestressed or reinforced concrete, for building structures, which overcomes the main problem of weight encountered with conventional cellular forms for use in high-rise house construction.
  • a cellular form is heavy in weight, being only slightly lighter than a solid slab and making it suitable for large loads and wide spans, but not for use in high-rise home construction, where normally they would have to rest on flat beams, the thickness of the frame being conditioned by the strength of said beams, normally of reinforced concrete.
  • the cellular forms would prove very heavy for transporting and lifting, their resistant characteristics being underemployed when said forms are applied to high-rise housing with flat beams.
  • the object of this invention is to create a fabrication system whereby the weight of these cellular forms is greatly reduced while retaining their essential nature, namely that of a self-bearing element, in which transversal loads are distributed very well by the "tubular" effect of their cells, highly resistant to torsion, and very acceptable for being left open to view on the underside in garages and shopping centres.
  • the object of this invention is to define the fabrication process by extrusion or moulding machine of the pre-stressed joist or cellular form types, in such a manner that in the factory only one half of the form is formed, it being necessary to provide on site the concrete for the upper part of the form, and join it appropriately to the heads of the ribs of the prefabricated or precast element.
  • the system is intended to replace the traditional filler and joist structure by this prefabricated form in the "flat" structures characteristic of the housing that is presently being built in Spain and in countries with a warm climate.
  • the classic joist and filler structures are presently the most economical housing structures in countries with a Mediterranean or tropical climate.
  • the "flat" joist and filler frames are those most employed, due to their great savings in material and manpower for manufacturing and erection.
  • This type of slab is most usually employed without weight-relieving fillers, a coat of concrete being poured on site and the whole behaving like a solid slab all of which was concreted in place.
  • the invention object of the present specification relates to a type of prefabricated, prestressed form which by combining the advantages of prefabrication with the subsequent reduction in job execution times through not having to assembly the frame on site and the absence of shuttering or bracing struts on the underside, facilitates a diminution in the weight of the form for its transport and lifting.
  • the form can be used with classic unidirectional flat beam shuttering (used to support the beams and joists of the frame), and can also be used for support on brick bearing walls, on metal structures, etc.
  • the form consists of a solid concrete slab of 2 to 4 cm in thickness, with or without internal mesh, and of between 0.6 m and 1.25 m in width, the most typical width being 1.2 m for reasons of transportation and the weights that can be lifted by the tower cranes currently employed on building sites.
  • This width of 1.2 m makes it possible to have a slab thickness of less than 3 cm, since if the production width of the form were increased, it would be necessary to increase the slab thickness for it to withstand handling without breaking.
  • These solid concrete ribs are slender, between 3 and 5 cm thick, and are of a height similar to that of the conventional frame, less 4 cm for the compression layer which shall be poured on site and the 3 cm of the base. These ribs stiffen the form and obviate bracing or shoring on site, being therefore of the self-bearing type, as is the case with cellular forms. These ribs can be of different shapes, the most characteristic being those that are rectangular in shape, though logically they can also include small variations that are trapezoidal, cylindrical, harpoon tip in order not to allow the fillers to escape, covered with protuberances, etc.
  • the top part of the rib shall support the compression produced by the positive moment during the stage of erection and concrete-pouring on site. Once the concrete of the top layer has set, it shall be this layer which counteracts the compression resulting from other loads standing on the frame. This is therefore an important difference with the semi-slab forms of the type shown in figures 6 and 7 in which the upper part of the rib has to withstand the compression applied by the positive moments of all the loads that stand on the frame during the useful lifetime of the form, for which reason it is larger in size and of greater weight than the form described herein.
  • the lifting of the pre-cast unit is carried out using by gripping two centrally-located ribs, the upper longitudinal protuberances ensuring greater security for this operation.
  • said fillers allow the upper filler of the cells to be formed with the span desired and with the arc or shape that has already been prepared on the fillers.
  • the length of the form is variable, depending on the span between the beams of the structure.
  • the thickness can also be variable according to the span between beams and the building loads, however most usually it is 20 to 35 cm, 26 cm being the most typical value for the conventional frames calculated for spans of between 3 and 6 metres and typical housing loads of 660 kg/cm2 total loading.
  • the ribs have some lateral grooves or channels, which shall serve to provide good bonding of the concrete of said compression layer with the rib itself and so constitute the tubes or cells characteristic of the cellular forms. These lateral channels shall impede the detachment of the top concrete layer, through the effect of tensile forces that arise when the form is twisted. They shall also serve to transmit the so-called shearing force between the two concretes, in such a manner that the bending compression forces are transmitted between rib and top layer. In order to ensure even more this shearing force between the concrete of the rib and the concrete of the top layer, side channelling can be made on the ribs, and the upper part of the rib concrete can even be scored, as is done with the prestressed joists.
  • the steel to withstand the positive moments of the frame is incorporated in the lower part of the ribs during their fabrication.
  • the steel to withstand the negative moments shall be positioned on the form, prior to pouring the top layer of concrete, being confined by this concrete layer and transmitting its compression to the rib and the lower part of the form through the join between the concrete bodies.
  • This formation of negative moments can be distributed over steel rods of less diameter and spread over the whole of the upper face of the forms, it not being necessary that they be concentrated above the ribs.
  • the steel to be emplaced in the prefabrication shall be of the prestressed type, with the consequent saving in steel for the construction work, since the higher yield strength of this steel permits a considerable reduction in cross section with respect to reinforced concrete.
  • the improvement in this process of fabrication lies mainly in that only half of the form has to be transported and, that by making use of the poured-in-place compression layer, the dome is formed for the cells of the actual form. In this way there is no duplication of concrete layers. Also since it does not have to support the vault of the cells alone, a greater clear span can be produced and the number of ribs reduced, making the form lighter.
  • the factory hand press-fits the fillers between the ribs, even before cutting with the diamond disc, the efficiency being improved if this process is carried out on site.
  • This filler has the job of supporting the concrete of the compression layer, and consequently of supporting the domes of the cells, until setting is complete. It is also sufficiently strong to support the weight of the workers when walking over it on site.
  • the construction of the form with fillers set in the factory offers the advantage of reducing costs when compared their assembly on site, since there the manpower is usually more expensive, and the performance achieved is less than in the factory.
  • the fillers prior to cutting one avoids having to trim the filler ends of each form on site in order to obtain the desired length.
  • the change in frame thickness is achieved instantly by using a regulating mould on the extrusion machine or a higher mould and fillers which are more or less thick and thereby able to adapt to greater or lesser spans and loads.
  • the weight of the finished frame is the same as that of the traditional frame which it replaces, so for a thickness of 26 cm, the weight, including the on-site concreting, comes to 280 kg/cm2.
  • the weight of the prefabricated form so obtained is of the order of 840 kg (for a thickness of 22 cm, width of 1.2 m, and length of 5 m, typical of the type employed in house building), which means that the tower cranes supporting 750 kg to 1000 kg at the tip can lift these forms comfortably. Also transport shall be less costly than for cellular forms having the same application, and equal to that of filler and joist. Thus, it is possible to transport twice the weight than with cellular forms of the same depth.
  • the fabrication of forms having an angle at the support is carried out directly by using the diamond disc to cut the angle desired on the prestessing line.
  • the forms can have 3 to 6 ribs, as required by the manufacturer or the project designer.
  • the ribs can have miscellaneous shapes as already explained, though rectangular shall be the most usual and in order to assure the engagement of the fillers with the rib, it is possible to have a saw-tooth arrangement on the walls of said ribs to provide a harpoon effect.
  • Engaging the fillers on the ribs in this manner prevents them from falling out in transportation or lifting, and also the tendency to float of the polystyrene when pouring concrete on site.
  • the lower part of the form has a perfectly smooth finish if fabricated on a sheet-metal-encased line.
  • the form shall also have less camber than traditional cellular forms, since the eccentricity between the centre of gravity of the reinforcing and that of the concrete is very small.
  • the connectors for withstanding a tensile force equal to the shear force at an indirect type support can be housed in the lateral form-to-form articulations, or else bevel the two fillers of the central rib and fill out by 10 to 15 cm.
  • This connection assembly shall be lodged in this filled out part and shall overlap with the rib by means of the concrete poured on site.
  • the form does not need shear resisting reinforcement (other than in exceptional cases), since the widths of rib concrete per linear metre are greater than those of the conventional frame that it replaces.
  • this band shall also be concreted but with no need to erect shuttering on site.
  • the main advantage offered by this new system shall therefore be of an economic nature since, if a calculation is made of all the costs involved in its fabrication and erection, there shall be a reduction in concrete in manufacture, in transportation, in hoisting and in concrete on site, with respect to the traditional cellular form.
  • a new possibility shall be to use machined or moulded polystyrene fillers with voids and webs, in order to employ less polystyrene material and therefore reduce form cost.
  • the general summary of the fabrication process of the prestressed form consists in positioning the steel cables on the production line, concreting the lower slab and the ribs with a moulding machine, allowing to set for some hours, inserting the fillers between the ribs, stacking in the factory, transporting to site, lifting and positioning on its supports, laying the upper mesh (though it is possible to do without this), lay the negative moments steel, and finally pour the concrete of the upper layer to form the actual cellular form.
  • the moulding machine requires no more than the design of a regulating mould with the desired measurements, but does not need any other kind of adjustment or special utensil, with respect to that employed with cellular forms.
  • the form so obtained or the frame so configured has a weight equal to that of the traditional ceramic or concrete joist and filler frame which, for a thickness of 26 cm, is approximately 280 kg/cm2. This weight cannot be obtained with traditional cellular forms of 26 cm thickness, especially if used with a compression layer poured on site.
  • Figure 1 Shows a cross-sectional view of a conventional cellular form with 9 cells (1) and 1.2 m in width. In said figure it is possible to appreciate the significant thickness and large number of ribs (2), making the form heavy for use in housing with the classic pillar and beam structure.
  • Figure 2. Shows a cross-sectional view of the frame made with the aforementioned cellular form with no compression layer, in which only the lateral articulations (3) are filled with concrete for junctions with other forms.
  • Figure 3. Shows a cross-sectional view of the foregoing cellular form, with the articulations (3) filled and the compression layer (4) poured.
  • the compression layer (4) poured.
  • Figure 4. Shows a cross-sectional view of another cellular form, fabricated with another type of machine (more expensive) employing a drier concrete the result of which is fewer cells (5) since the fresh dome (6) has a better support.
  • the lateral articulations (7) are also of another type. In any case it continues to be very heavy when compared with joist and filler.
  • Figure 5. Shows a cross-sectional view of another form, fabricated with an extrusion machine (still more expensive) employing a very dry concrete, with fewer cells (8), in this case circular in outline, and having lateral articulations (9) of another type. As can be seen, the aptly described tubular effect is maintained therein and also the lateral joining articulations. Despite the lightening in weight, they still prove to be too heavy.
  • Figure 6. Shows a cross-sectional view of a pre-slab type form (10) with vertical ribs (11) which shall serve to support the compressive forces due to the positive moments of the form. It is filled on site with an insulating material (12), has very large lateral articulations (13) and the thickness of the lower slab (10) is usually 4 to 5 cm at least. The head of the these ribs is usually large since, during the useful lifetime of the frame, they support all compression due to positive moments. The do not usually work under negative moments, due to the large in-fills that have to be implemented.
  • Figure 7. Shows a cross-sectional view of the same pre-slab as above, but mounted in the frame and topped with a compression layer. It can be seen that the concrete of the compression layer does not enclose the upper part of the vertical ribs (15) and therefore there is no transmission of forces between the two elements, since these slabs, as already stated, support the compression produced by all loads in the heads (16) of the ribs themselves (thickened for this purpose).
  • Figure 8. Shows a cross-sectional view of the cellular form, object of this invention, in which it can be appreciated that once the concrete is poured, there is no difference with the traditional cellular structure, having the closed cells (17) of the foregoing, as well as the lateral articulations (18).
  • Figure 9. Shows a cross-sectional view and in different stages of the fabrication procedure of this cellular form.
  • the half of the form (19) produced in the factory then the polystyrene fillers (20) being inserted in the cellular half-form, a task also performed in the factory and finally, in the upper part, the outline of what shall be the upper concrete form (21), being the only concrete poured on site and constituting the closure of the cells.
  • the total thickness of the upper slab which acts as the compression layer is 4 cm, in contrast with 7 cm found in the traditional cellular form with compression layer poured on site (figure 3).
  • Figure 10. Shows a cross-sectional view of the cellular form (26) so obtained with the top concrete layer (28) already poured on site, in which can also be appreciated the cells (25), the prefabricated ribs (27), the precast lower slab (27), and the prestressed steel (24). Only the filler has been suppressed from the drawing in order to highlight the morphological equality with the traditional cellular form.
  • Figure 11. Shows a cross-sectional view of a form the same as the previous case but with one cell less, during its fabrication stage, and the concrete poured on site (29) shown as a top-piece in process of assembly.
  • Figure 12. Shows a cross-sectional view of the cellular form so obtained, lighter than the previous case (figure 10).
  • Figure 13 Shows a cross-sectional view of the previous same form, in which the junctions between concrete elements have been erased in order to illustrate the tubular effect (30) of its cells, and that morphologically speaking, it is the same as a traditional cellular form.
  • Figure 14 Shows a cross-sectional view of a form with four cells, in which some arrows (31) represent the torsion effect supported by the cells when transmitting transversal loads, which confers upon the form the same properties as the cellular forms fabricated in a single piece.
  • Figure 15. Shows a cross-sectional view of the form, with the neutral axis (32) in positive bending, in which it can be observed that the shaded area is the only part which supports compression (33) from positive moments.
  • Figure 16. Shows a cross-sectional view of the semi-slab type form of figure 6, in which the neutral axis (34) is lower, due to the lack of width in the compression heads (35), which results in an increase in the build-up of positive tension (36).
  • Figure 17. Shows a cross-sectional view of the precast part of the cellular slab object of this patent, in which can be seen the slenderness that can be achieved in the ribs (37) of about 4 cm in thickness, given that there is no need for a large compression head as they need only support the weight itself during the erection stage; and the lower slab (38) with about 3 cm in thickness.
  • Figure 18. Shows a cross-sectional view of two types of polystyrene fillers, one solid (39) and the other lightened or shaped (40).
  • Figure 19 Shows a cross-sectional view of the pre-casting of the form object of this invention, with the polystyrene (41) already inserted and ready for transporting to site.
  • Figure 20 Shows a cross-sectional view of the previous form, in which the interface between concretes has been suppressed in order to better appreciate the effect of cells (43) firmly closed through the pincer action (44) of the concrete poured on site over the ribs.
  • Figure 21 Shows a cross-sectional view of the frame (45) constituted by the forms of the previous type, in which can be seen the filling of the articulation (46), on pouring the concrete of the top compression layer (49). It is also possible to see the mesh (48) and the negative moments steel rods (47).
  • Figure 22 Shows a cross-sectional view of a rib with protuberances (50) in order not to reduce the cross section of the rib, said longitudinal protuberances being rounded in shape.
  • Figure 23 Shows a cross-sectional view of how it is possible to insert the ironwork (52) of a beam parallel to the frame, which could serve as edge band or staircase header, whereby there is no need for shuttering on site.
  • a description is given hereafter of a manner of embodying the present invention relating to a procedure for fabrication of a light cellular form (26) comprising a lower concrete slab (27) of about 3 cm in thickness and 120 cm in width pre-cast in a factory, 4 or 5 concrete ribs (23) of 19 cm in height fabricated joined to the pre-cast slab (26), by means of a continuous production concrete moulding machine on a prestressing line.
  • polystyrene fillers are inserted between the ribs having an upper side recess (22), which shall serve to permit the concrete top layer (28) of 4 cm poured on site with or without mesh, to grasp the sides of the ribs of the pre-cast half-form.
  • the fillers shall withstand until set the upper dome of "fresh" concrete of the cells so formed.
  • the reinforcing bars (24) necessary to withstand the positive moments of the frame.
  • the forms are laid together in parallel, resting on the load-bearing beams of the structure, after which said frame is completed by collocating the reinforcement (47) to withstand negative moments and adding also on site a steel mesh (48), though this can be avoided, and a concrete compression layer (49) of reduced thickness, normally about 4 cm.
  • the ribs (19) of the forms can adopt various shapes, the most usual being rectangular, and incorporate some side channels (22) which permit the concrete poured on site (49) to penetrate into such cavities (22) and prevent the upper concrete layer (21) from separating from the ribs (19).
  • These side channels can be replaced with longitudinal protuberances, in order not to weaken the rib when lifting the form.
  • the ends of the fillers can be extended by 10 or 15 cm and so make said area solid with the connector.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Road Paving Structures (AREA)
  • Artificial Fish Reefs (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP01929662A 2000-05-16 2001-05-09 Procede de fabrication d'une plaque alveolaire legere materialisee en chantier, plaque ainsi obtenue et son application dans des logements Withdrawn EP1350898A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200001219A ES2161199B1 (es) 2000-05-16 2000-05-16 Procedimiento de fabricacion de placa alveolar ligera materializada en obra, placa asi obtenida y su aplicacion en viviendas.
ES200001219 2000-05-16
PCT/ES2001/000177 WO2001088297A1 (fr) 2000-05-16 2001-05-09 Procede de fabrication d'une plaque alveolaire legere materialisee en chantier, plaque ainsi obtenue et son application dans des logements

Publications (1)

Publication Number Publication Date
EP1350898A1 true EP1350898A1 (fr) 2003-10-08

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EP01929662A Withdrawn EP1350898A1 (fr) 2000-05-16 2001-05-09 Procede de fabrication d'une plaque alveolaire legere materialisee en chantier, plaque ainsi obtenue et son application dans des logements

Country Status (4)

Country Link
EP (1) EP1350898A1 (fr)
AU (1) AU5636901A (fr)
ES (1) ES2161199B1 (fr)
WO (1) WO2001088297A1 (fr)

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GB2413572A (en) * 2004-04-30 2005-11-02 Peter Sully Load bearing unit
WO2007137318A1 (fr) 2006-05-30 2007-12-06 Technische Universität Wien Construction PORTEUSE en bÉton plane et procÉdÉ de rÉalisation de celle-ci
EP1908891A2 (fr) * 2006-07-06 2008-04-09 Ingenieria de Prefabricados S.L. Dalle composite pour plancher en béton
CN100449077C (zh) * 2004-11-22 2009-01-07 邱则有 一种砼空心板用预制构件
CN100449070C (zh) * 2004-11-11 2009-01-07 邱则有 一种砼空心板填充用构件
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EP2072706A1 (fr) * 2007-12-20 2009-06-24 Kp1 Plancher comprenant des poutres et des entrevous ainsi qu'une dalle coulée sans couture sur ces poutres et entrevous
EP2096220A1 (fr) 2008-02-28 2009-09-02 Thomas Friedrich Elément de plaques creuses préconstraintes
EP1605112B1 (fr) * 2004-06-11 2009-12-16 OP-deck Holding B.V. Procédé pour la fabrication d'une construction de bâtiment et coffrage pour ce procédé
ITPR20090097A1 (it) * 2009-11-23 2011-05-24 Area Prefabbricati S P A Procedimento per la realizzazione di un impalcato con elementi prefabbricati ad intradosso piano ed impalcato cosi' ottenuto
ITVI20090287A1 (it) * 2009-11-30 2011-06-01 Ugo Zanrosso Pannello isolante
ITPR20100009A1 (it) * 2010-02-01 2011-08-02 Area Prefabbricati S P A Procedimento per la realizzazione di un impalcato con elementi prefabbricati ad intradosso piano ed impalcato cosi' ottenuto
CN101138897B (zh) * 2006-09-08 2012-05-02 吕吉海 轻质复合保温砌块
CN102995825A (zh) * 2012-12-18 2013-03-27 湖北弘毅钢结构工程有限公司 球形蜂窝孔式肋架预应力钢筋混凝土叠合板
NL2008542C2 (nl) * 2012-03-27 2013-09-30 Barhold B V Vloerelement voorzien van voorspanmiddelen.
EP2792806A1 (fr) 2013-04-17 2014-10-22 Lesage, Rector Dalle prefabriquee a rupture de pont thermique, procede de fabrication de ladite dalle prefabriquee, et procede de construction d'un plancher a partir de ladite dalle prefabriquee
NL2010779C2 (nl) * 2013-05-08 2014-11-13 Jawiho B V Vloerplaat, werkwijze voor de vervaardiging van een vloerplaat en werkwijze en gebruik van een dergelijke vloerplaat voor het vormen van een vloer in een bouwwerk zoals een gebouw.
CN105201101A (zh) * 2015-08-21 2015-12-30 中铁建大桥工程局集团第五工程有限公司 轻集料混凝土小型空心砌块建筑体砌筑施工方法
FR3050470A1 (fr) * 2016-04-25 2017-10-27 Alfyma Ind Dalle de batiment a masse reduite
EP2021555B1 (fr) * 2006-05-17 2021-04-21 Associated Valaire Pty Ltd Poutre en beton

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ES2246667B1 (es) * 2003-11-11 2007-05-01 Jaime Enrique Jimenez Sanchez Metodo de fabricacion de muro prefabricado tipo sandwich de hormigon armado aligerado con poliestireno expandido y muro obtenido por dicho metodo.
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ES2281987B1 (es) * 2004-04-19 2008-06-01 Jaime Enrique Jimenez Sanchez Forjado con placa nervada prefabricada con macizado en uno de sus bordes para reparto transversal de cargas y procedimiento de ejecucion del mismo.
ES2310946B1 (es) * 2004-04-21 2009-12-17 Jaime Enrique Jimenez Sanchez Forjado con placa nervada prefabricada.
CN1773059B (zh) * 2004-11-11 2010-05-05 邱则有 一种空心板用空腔构件
CN1773053B (zh) * 2004-11-11 2010-04-14 邱则有 一种空心板用空腔构件
CN1773057B (zh) * 2004-11-11 2010-04-21 邱则有 一种砼空心板填充用构件
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CN1776156B (zh) * 2004-11-15 2010-04-14 邱则有 一种空心板用空腔构件
CN1776155B (zh) * 2004-11-15 2010-04-28 邱则有 一种空心板用空腔构件
CN1779153B (zh) * 2004-11-19 2010-05-05 邱则有 一种砼空心板填充用空腔构件
CN1779152B (zh) * 2004-11-19 2010-05-05 邱则有 一种砼空心板填充用空腔构件
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CN102041860B (zh) * 2004-11-22 2012-02-29 邱则有 一种砼空心板用空腔构件
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CN100449070C (zh) * 2004-11-11 2009-01-07 邱则有 一种砼空心板填充用构件
CN100449077C (zh) * 2004-11-22 2009-01-07 邱则有 一种砼空心板用预制构件
CN100458063C (zh) * 2004-11-22 2009-02-04 邱则有 一种钢筋混凝土预制构件
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WO2007137318A1 (fr) 2006-05-30 2007-12-06 Technische Universität Wien Construction PORTEUSE en bÉton plane et procÉdÉ de rÉalisation de celle-ci
EP1908891A3 (fr) * 2006-07-06 2008-07-23 Ingenieria de Prefabricados S.L. Dalle composite pour plancher en béton
EP1908891A2 (fr) * 2006-07-06 2008-04-09 Ingenieria de Prefabricados S.L. Dalle composite pour plancher en béton
CN101138897B (zh) * 2006-09-08 2012-05-02 吕吉海 轻质复合保温砌块
FR2925544A1 (fr) * 2007-12-20 2009-06-26 Kp1 Soc Par Actions Simplifiee Plancher comprenant des poutres et des entrevous ainsi q'une dalle coulee sans couture sur ces poutres et entrevous.
EP2072706A1 (fr) * 2007-12-20 2009-06-24 Kp1 Plancher comprenant des poutres et des entrevous ainsi qu'une dalle coulée sans couture sur ces poutres et entrevous
EP2096220A1 (fr) 2008-02-28 2009-09-02 Thomas Friedrich Elément de plaques creuses préconstraintes
EP2325409A1 (fr) 2009-11-23 2011-05-25 Area Prefabbricati S.P.A. Procédé de fabrication d'une dalle avec des éléments préfabriqués plats et la dalle réalisée par ce procédé
ITPR20090097A1 (it) * 2009-11-23 2011-05-24 Area Prefabbricati S P A Procedimento per la realizzazione di un impalcato con elementi prefabbricati ad intradosso piano ed impalcato cosi' ottenuto
ITVI20090287A1 (it) * 2009-11-30 2011-06-01 Ugo Zanrosso Pannello isolante
ITPR20100009A1 (it) * 2010-02-01 2011-08-02 Area Prefabbricati S P A Procedimento per la realizzazione di un impalcato con elementi prefabbricati ad intradosso piano ed impalcato cosi' ottenuto
NL2008542C2 (nl) * 2012-03-27 2013-09-30 Barhold B V Vloerelement voorzien van voorspanmiddelen.
CN102995825A (zh) * 2012-12-18 2013-03-27 湖北弘毅钢结构工程有限公司 球形蜂窝孔式肋架预应力钢筋混凝土叠合板
EP2792806A1 (fr) 2013-04-17 2014-10-22 Lesage, Rector Dalle prefabriquee a rupture de pont thermique, procede de fabrication de ladite dalle prefabriquee, et procede de construction d'un plancher a partir de ladite dalle prefabriquee
FR3004740A1 (fr) * 2013-04-17 2014-10-24 Rector Lesage Dalle prefabriquee a rupture de pont thermique, procede de fabrication de ladite dalle prefabriquee, et procede de construction d'un plancher a partir de ladite dalle prefabriquee
NL2010779C2 (nl) * 2013-05-08 2014-11-13 Jawiho B V Vloerplaat, werkwijze voor de vervaardiging van een vloerplaat en werkwijze en gebruik van een dergelijke vloerplaat voor het vormen van een vloer in een bouwwerk zoals een gebouw.
CN105201101A (zh) * 2015-08-21 2015-12-30 中铁建大桥工程局集团第五工程有限公司 轻集料混凝土小型空心砌块建筑体砌筑施工方法
FR3050470A1 (fr) * 2016-04-25 2017-10-27 Alfyma Ind Dalle de batiment a masse reduite
EP3239425A1 (fr) * 2016-04-25 2017-11-01 Alfyma Industrie Dalle de bâtiment à masse réduite

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AU5636901A (en) 2001-11-26
ES2161199A1 (es) 2001-11-16
WO2001088297A1 (fr) 2001-11-22
ES2161199B1 (es) 2002-07-01

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