ITBO20090833A1 - LIGHTENING PANELS FOR CONCRETE STRUCTURES - Google Patents
LIGHTENING PANELS FOR CONCRETE STRUCTURES Download PDFInfo
- Publication number
- ITBO20090833A1 ITBO20090833A1 IT000833A ITBO20090833A ITBO20090833A1 IT BO20090833 A1 ITBO20090833 A1 IT BO20090833A1 IT 000833 A IT000833 A IT 000833A IT BO20090833 A ITBO20090833 A IT BO20090833A IT BO20090833 A1 ITBO20090833 A1 IT BO20090833A1
- Authority
- IT
- Italy
- Prior art keywords
- lightening
- box
- structures
- concrete
- panel
- Prior art date
Links
- 230000002787 reinforcement Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011111 cardboard Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000003562 lightweight material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 claims 1
- 238000010348 incorporation Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- E04C2/2885—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 with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0068—Embedding lost cores
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Finishing Walls (AREA)
- Panels For Use In Building Construction (AREA)
Description
DESCRIZIONE DESCRIPTION
del brevetto per invenzione industriale dal titolo: of the patent for industrial invention entitled:
“PANNELLI DI ALLEGGERIMENTO PER STRUTTURE IN CALCESTRUZZO” "LIGHTENING PANELS FOR CONCRETE STRUCTURES"
La presente invenzione è relativa a pannelli di alleggerimento per strutture verticali o orizzontali in calcestruzzo. The present invention relates to lightening panels for vertical or horizontal concrete structures.
È pratica comune la realizzazione di solai e muri in calcestruzzo che hanno al proprio interno elementi di alleggerimento realizzati mediante polistirolo, cartone, legno, plastica o alluminio. In fase di costruzione, tali pannelli vengono posizionati all’interno di due strati di armatura che richiedono tralicci distanziatori di altezza adeguata a garantirne il corretto posizionamento. Il successivo getto di calcestruzzo completa l’elemento. It is common practice to build concrete floors and walls that have internal lightening elements made of polystyrene, cardboard, wood, plastic or aluminum. During construction, these panels are positioned within two layers of reinforcement that require spacer trusses of adequate height to ensure their correct positioning. The subsequent concrete casting completes the element.
Tale tecnologia non sempre riesce a realizzare un completo inglobamento delle armature nel calcestruzzo, con conseguente formazione di punti di discontinuità o di contatto con l’alleggerimento che possono compromettere l’efficienza dell’elemento finito. Inoltre la geometria degli elementi non sempre permette di realizzare elementi con nervature (mono o bidirezionali) a interasse costante ma di dimensioni variabili poste. This technology is not always able to achieve complete incorporation of the reinforcement in the concrete, resulting in the formation of points of discontinuity or contact with the lightening that can compromise the efficiency of the finished element. Furthermore, the geometry of the elements does not always allow the creation of elements with ribs (mono or bidirectional) with a constant center distance but with variable dimensions.
Scopo della presente invenzione è quello di proporre pannelli di alleggerimento per elementi orizzontali o verticali (solai o muri) in calcestruzzo, con caratteristiche tali da evitare gli inconvenienti dell’arte nota sopra descritti. The purpose of the present invention is to propose lightening panels for horizontal or vertical elements (floors or walls) in concrete, with characteristics such as to avoid the drawbacks of the prior art described above.
Oggetto della presente invenzione è un pannello di alleggerimento per strutture in calcestruzzo, le cui caratteristiche essenziali riportate nella rivendicazione 1, e le caratteristiche preferite e/o ausiliari riportate nelle rivendicazioni 2-6. The object of the present invention is a lightening panel for concrete structures, the essential characteristics of which are reported in claim 1, and the preferred and / or auxiliary characteristics reported in claims 2-6.
Per una migliore comprensione dell’invenzione è riportato nel seguito un esempio di applicazione. L’esempio è fornito a puro titolo illustrativo e non è limitativo di possibili ulteriori applicazioni. Con riferimento alle figure del disegno annesso in cui: For a better understanding of the invention, an application example is shown below. The example is provided for illustrative purposes only and is not limiting to possible further applications. With reference to the figures in the attached drawing in which:
la figura 1 è una vista prospettica dall’alto di un pannello di alleggerimento conforme alla presente invenzione; Figure 1 is a perspective view from above of a lightening panel according to the present invention;
la figura 2 è una vista anteriore di un particolare di figura 1; Figure 2 is a front view of a detail of Figure 1;
la figura 3 è una sezione di un particolare ingrandito di figura 1 inserito in una struttura di calcestruzzo. Figure 3 is a section of an enlarged detail of Figure 1 inserted in a concrete structure.
In figura 1 è indicato nel suo complesso con il numero 1 un pannello di alleggerimento per strutture in calcestruzzo secondo la presente invenzione. In Figure 1, the number 1 indicates as a whole a lightening panel for concrete structures according to the present invention.
Il pannello di alleggerimento 1 comprende una pluralità di strutture scatolari 2 realizzate in materiale leggero di diversa natura, quale ad esempio cartone, legno plastica o alluminio, ed una coppia di reti presagomate (3) disposte a contatto con due rispettive superfici opposte 2a e 2b delle strutture scatolari 2 in maniera da realizzare con le stesse una struttura tipo “sandwich”. The lightening panel 1 comprises a plurality of box-like structures 2 made of light material of different nature, such as for example cardboard, wood, plastic or aluminum, and a pair of pre-shaped nets (3) arranged in contact with two respective opposite surfaces 2a and 2b of the box-like structures 2 so as to create a "sandwich" -type structure with them.
In figura 2 è evidenziata una sola delle reti presagomate 3 isolata dal contesto generale del pannello 1. Figure 2 shows only one of the pre-shaped meshes 3 isolated from the general context of the panel 1.
Come è possibile notare dalla figura 2, le reti presagomate 3 presentano una pluralità di denti distanziatori 4 aventi conformazione triangolare e si estendono dalla parte opposta rispetto alle strutture scatolari 2. As can be seen from Figure 2, the pre-shaped nets 3 have a plurality of spacer teeth 4 having a triangular shape and extending on the opposite side with respect to the box-like structures 2.
In figura 3 è illustrata in sezione una porzione di una struttura in calcestruzzo 5 comprendente una pannello di alleggerimento 1 e una coppia di barre di armatura 6 che poggiano sui denti distanziatori 4 senza venire a contatto con la struttura reticolata piana della rete presagomata 3. Figure 3 shows in section a portion of a concrete structure 5 comprising a lightening panel 1 and a pair of reinforcing bars 6 which rest on the spacer teeth 4 without coming into contact with the flat reticulated structure of the pre-shaped mesh 3.
La presenza dei denti distanziatori garantisce il corretto inglobamento delle armature da parte del calcestruzzo in fase di getto. Infatti, con la presente soluzione tutta l’armatura può essere circondata dal calcestruzzo fresco, come non sarebbe possibile se parte dell’armatura stessa fosse appoggiata direttamente sulla struttura reticolata piana della rete presagomata 3. The presence of the spacer teeth guarantees the correct incorporation of the reinforcements by the concrete during the casting phase. In fact, with this solution all the reinforcement can be surrounded by fresh concrete, as it would not be possible if part of the reinforcement itself were placed directly on the flat reticulated structure of the pre-shaped mesh 3.
La conformazione dei denti distanziatori 4 può essere anche diversa da quanto descritto e illustrato nelle figure. Poiché l’altezza dei denti distanziatori 4 definisce l’entità dell’inglobamento delle armature da parte del calcestruzzo, è possibile variarne l’altezza stessa in funzione delle specifiche necessità. The shape of the spacer teeth 4 can also be different from what is described and illustrated in the figures. Since the height of the spacer teeth 4 defines the extent of incorporation of the reinforcements by the concrete, it is possible to vary the height itself according to specific needs.
La rete presagomata comprendente i denti distanziatori permette il corretto posizionamento in opera non solo di barre di armatura singole, ma anche di tappeti di armatura industrializzati senza la necessità di predisporre appositi tralicci distanziatori. The pre-shaped mesh comprising the spacer teeth allows the correct positioning not only of single reinforcement bars, but also of industrialized reinforcement belts without the need to prepare special spacer trusses.
I pannelli di alleggerimento oggetto della presente invenzione consentono inoltre di realizzare solai caratterizzati da una pluralità di nervature aventi direzione e dimensioni a piacere in funzione della disposizione e dell’altezza delle strutture scatolari 2. È anche possibile realizzare solai con nervature tra loro geometricamente diverse utilizzando strutture scatolari 2 di differente altezza. Tali nervature possono essere realizzate mediante un getto di calcestruzzo che non arrivi a coprire la parte sottostante delle strutture scatolari 2. The lightening panels object of the present invention also make it possible to create floors characterized by a plurality of ribs having any direction and size according to the arrangement and height of the box-like structures 2. It is also possible to create floors with geometrically different ribs using box-like structures 2 of different heights. These ribs can be made by means of a concrete casting that does not cover the underlying part of the box-like structures 2.
Dopo il getto rimuovendo le strutture scatolari 2 si realizza un “solaio a cassettoni” con alternanza di volumi vuoti delimitati ciascuno superiormente dalla soletta di calcestruzzo e lateralmente dalle nervature. A tale scopo i pannelli di alleggerimento possono essere predisposti con la sola rete presagomata 3 superiore. After casting, by removing the box-like structures 2, a "coffered floor" is created with alternating empty volumes, each delimited above by the concrete slab and laterally by the ribs. For this purpose, the lightening panels can be prepared with only the upper pre-shaped mesh 3.
Per la realizzazione delle strutture scatolari 2, è possibile utilizzare materiale di riciclo aumentando il profilo di sostenibilità ambientale della presente invenzione. For the realization of the box-like structures 2, it is possible to use recycled material increasing the environmental sustainability profile of the present invention.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000833A ITBO20090833A1 (en) | 2009-12-28 | 2009-12-28 | LIGHTENING PANELS FOR CONCRETE STRUCTURES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000833A ITBO20090833A1 (en) | 2009-12-28 | 2009-12-28 | LIGHTENING PANELS FOR CONCRETE STRUCTURES |
Publications (1)
Publication Number | Publication Date |
---|---|
ITBO20090833A1 true ITBO20090833A1 (en) | 2011-06-29 |
Family
ID=42697463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT000833A ITBO20090833A1 (en) | 2009-12-28 | 2009-12-28 | LIGHTENING PANELS FOR CONCRETE STRUCTURES |
Country Status (1)
Country | Link |
---|---|
IT (1) | ITBO20090833A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2179295A (en) * | 1985-08-15 | 1987-03-04 | Tinsley Wire | Formwork panels |
DE4031643A1 (en) * | 1989-10-19 | 1991-04-25 | Gilboa Yair | Casting reinforced concrete building plates-blocks - using filler blocks held in place by spikes on reinforcement mesh as concrete is cast around them |
-
2009
- 2009-12-28 IT IT000833A patent/ITBO20090833A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2179295A (en) * | 1985-08-15 | 1987-03-04 | Tinsley Wire | Formwork panels |
DE4031643A1 (en) * | 1989-10-19 | 1991-04-25 | Gilboa Yair | Casting reinforced concrete building plates-blocks - using filler blocks held in place by spikes on reinforcement mesh as concrete is cast around them |
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