EP1749137A1 - Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toitures - Google Patents
Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toituresInfo
- Publication number
- EP1749137A1 EP1749137A1 EP05750338A EP05750338A EP1749137A1 EP 1749137 A1 EP1749137 A1 EP 1749137A1 EP 05750338 A EP05750338 A EP 05750338A EP 05750338 A EP05750338 A EP 05750338A EP 1749137 A1 EP1749137 A1 EP 1749137A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- beams
- floor
- connectors
- sheets
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- E04B5/40—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 with metal form-slabs
-
- 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
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
Definitions
- the present invention relates to connector and shutter elements fitted, preferably in a partially prefabricated manner, floor tiles or roofing based on profiled sheet, preferably with periodic trapezoidal section and steel, in view of the junction of these with a main supporting structure made of beams or beams.
- the invention also finds a very advantageous application in the construction of parking lots and in particular whenever the use of tiles with a range greater than 5 meters is required.
- This complementary part has a function of strengthening the resistance of the structure, insofar as it allows the effort to be taken up from the top, at the top of the wave.
- the metal sheet is therefore deposited on this device, which has the advantage of avoiding local ruin by excess compression in the support zone, while reducing the total height of the slab.
- this diaphragm is directly used as a shutter for concrete in liquid phase.
- This device also has the advantage of drowning the concrete beam in the case of such a floor. mixed steel / concrete, with like. additional advantage of increasing the fire resistance of the structure. "However, this technique has the disadvantage of requiring a non-standard beam whose bottom flange is wider than the upper flange.
- the height of the beam is limited by the ' total height of the slab. Because of this restriction, the span of the beam is limited to the same order of magnitude as that of the metal sheet, and the diaphragm must be installed on site, which is also an expensive operation.
- Another possibility proposed in document DE-A-42 15686, consists of suspending the sheet metal to bars secured to the upper sole of the beams (lie) s and protruding therefrom in cantilever to precisely allow the attachment of profiled metal sheets of considerable height. These bars can be welded in the beams' prefabrication workshop, with regular spacing so that the steel sheet is deposited directly. nt on these bars during the construction phase. Other fastening systems such as riveting, welding or strapping the bars can also be used.
- This system makes it possible to avoid local punching since the sheet is suspended from the structure. It also has the advantage of having a low total combined height since the height of the sheet is taken up by the beam, with the exception of the height of the bars.
- the beam used in this case can be a standard beam without concreting in the cores or a standard beam with concreting the cores before laying, in the case where the fire requirements are more restrictive.
- Pre-bent beams can also be used with this device. There is therefore no span limitation for beams. In the ; in the case of mixed steel / concrete structures, shutters must be placed on site. As the bars are welded directly to the beam, handling of the prefabricated beams is made more difficult. Indeed, the ba 'rrettes can be damaged during transport and in situ assembly.
- the present invention aims to provide a solution which does not have the drawbacks of the state of the art. More particularly, the invention aims to provide a simple, rational, resistant and inexpensive device for connecting trapezoidal metal sheets, serving as the basis for a floor slab or roofing resting on a main structure made of beams or beams. The invention also aims to provide a device for connecting sheets to beams, independent of the differences in tolerances existing between these two types of structural elements. The invention has the additional aim of providing a connection device which can be mounted on the sheets in the prefabrication workshop. The invention also aims to provide shutters to drown concrete 1 soul of the beams of the main structure, and thus increase the fire resistance.
- the invention also aims to provide a connection device to prevent the fall of said sheets in the event of accidental separation of the beams in the case where the. concrete is nonexistent or even liquid.
- a first object of the present invention relates to a device for the connection of a plurality of profiled metal sheets, constituting a floor, on a beam or a beam, characterized in that it comprises: upper support means, preassemblable on the floor and intended to be fixed to an upper flange of the beam, comprising at least one end connector which can be secured to each individual sheet, which has at one end projecting from the sheet a stop in the longitudinal direction for positioning said end, so that the. connector, once secured to said individual sheet, protrudes therefrom by a length corresponding exactly to the length of the stop, and / or lower support means intended to rest on a lower flange - of the beam and mounted pivoting around a joint.
- each end connector is in the form of a profile provided at said projecting end with a flap lateral length determined in the longitudinal direction, acting as a positioning stop for said individual sheet.
- the connectors are prefixable by mechanical means such as nailing, clinching or riveting, by fusion or by bonding, or by a combination of at least two of these means, in the upper part of the sheet, directly on the underside of the sole or on the core thereof.
- the connectors have a longitudinal extension less than the length of the sheet, preferably less than half the length of the sheet.
- the connectors comprise a solid strip machined in the mass or a tube, preferably of square or rectangular section, or even a part formed, by cutting and folding, from a flat sheet.
- the prefixable connectors at the end of the sheet have a height of at least 10 mm relative to the thickness of the sheet, preferably are doubled, arranged one on the other by hand and on the other side of the sheet and possibly joined together.
- the connection device comprises an articulation between a first and a second lower support element, said articulation preferably being of hinged, hinged or interlocking type and able to take over the construction load of the floor.
- the first lower support means is mountable in support on the floor sheet, while the second lower support means is mountable bearing on the lower flange of the beam via a stop means, optionally provided with an adjustment screw.
- the first lower support means comprises a local support means for distributing the load on the connectors and openings to be threaded on said connectors.
- the first lower support means is further provided with flaps to seal against the floor during a concrete pour.
- the second lower support means is provided with at least one flap for sealing against the floor and with flaps on each of its lateral sides to ensure the connection between said second contiguous means, this connection being achievable by mechanical means such as nailing, clinching or riveting, by fusion or by gluing.
- the lower support means is provided with a lug constituting a stop element relative to the lower flange of the beam.
- a second object of the present invention relates to a metal structure comprising a plurality of structural beams or beams on which are supported a plurality of profiled sheets, preferably of height / thickness ratio greater than 100, characterized in that each individual sheet comprises at least one connection device as described above, said device being fixed to said sheet and to said beam or beam.
- the structure further comprises a plurality of shutters at the end of the sheet to ensure one sealing when concreting a composite slab and / or the webs of the beams.
- said connectors and / or shutters are mountable on the sheets in the prefabrication workshop before use on site.
- the structure further comprises a cap reinforcement covering each junction between a beam and a sheet, intended to be embedded in poured concrete after assembly of the structure, as well as longitudinal reinforcements.
- a floor, a roof and a parking lot comprising a concrete slab poured onto a metal structure as described above.
- Yet another object of the present invention relates to a method of manufacturing a metal structure or concrete / metal composite, the metal structure being as described above, characterized at least by the following steps:
- - end connectors acting as upper support means are positioned in the prefabrication workshop in the longitudinal direction on profiled metal sheets with a height / thickness ratio greater than 100, using the abovementioned stops and fixed by mechanical means, for example by nailing, clinching or riveting, preferably using a template for the 'embodiment without measuring the mechanical attachment, or by fusion or by bonding, preferably in the upper part of the plate directly on the underside of the sole or on the soul thereof;
- - Said sheets provided with their support means are transported to the site and placed on one or more beams;
- - shutters of the wave of sheets comprising. flanges are placed in the vicinity of the junction of beams and sheets; the connectors of the sheets are fixed to the beams by mechanical means, by fusion or by bonding; the shutters are fixed to the beams and / or between them by mechanical means, by fusion or by bonding;
- Lower support means also acting as shutters, for concreting the webs of the beams, are also fixed transversely at the end of the floor, by mechanical means, by fusion or by bonding; said means are placed in the vicinity of the junction of beams and sheets; - Optionally, said means are fixed to the beams and / or between them by mechanical means, by fusion or by bonding, preferably by adjusting the load distribution between the upper and lower supports;
- Figure l.a schematically shows, in a perspective view, the floor structure according to the present invention, having connectors with upper and lower supports.
- Figure lb shows schematically, in a sectional view in a transverse axis with respect to the beams, the floor structure of Figure la
- Figure lc schematically shows the floor structure of Figure la, according to a sectional view in a longitudinal axis with respect to the beams.
- Figure 2 shows schematically, in an exploded view • in perspective, the connection device for the floor structure according to the present invention.
- Figures 3. a to 3.c schematically show a preferred embodiment where connectors and plugs have been preassembled on a floor sheet.
- Figure 4 shows schematically the different possible components for producing the connection device according to the present invention.
- the present invention provides a new technique and a new attachment device for profiled metal sheets 1, hereinafter called "floor", preferably of steel and relatively high trapezoidal section, on beams or beams 2.
- floor preferably of steel and relatively high trapezoidal section
- the profiled metal sheets 1 constituting the aforementioned floors generally have the form of steel trays which will advantageously be galvanized or pre-coated to present good resistance against corrosion.
- suspension connectors 3 are used, directly fixed to the sheet 1. These connectors 3 have one end protruding longitudinally from the sheet 1 which : serve as an upper support on the beam 2.
- the connection of this upper support with the beam 2 is ensured either by mechanical means, for example Hilti ® nail, or by fusion, for example spot welding, or else by gluing.
- connection device has a part that can play the role of a shutter comprising a first lower support element 7 pivotally mounted around a joint 13, for example of the hem or hinge type, on a second lower support element 8.
- the first element 7 of the shutter rests on the floor plate 1, while the second element 8 of the shutter rests on the bottom flange of the beam 2.
- L element 8 is provided with a stop element 18 as shown, optionally supplemented by an adjustment screw 19, or any other stop means such as a wedge, so as to adjust the load distribution between the lower and upper supports, thanks to the variable inclination of the element 8.
- Figure 2 shows an exploded view of the floor of the invention which has connectors 3 preassembled acting as upper supports, as well as elements ra shutters carried 7 and 8, connected together by the hinge 13.
- the element 7 is also provided with a local support element 12 for distributing the load on the connectors 3 and openings 11 to be threaded for mounting on the same connectors 3.
- the element 7 is further provided with flaps 14 to seal 1 relative to the floor 1 when pouring concrete ( Figure 4).
- the element 8 is provided with a flap 15 to seal against the floor 1 and with flaps 16 on each of its lateral sides to ensure the connection between adjacent elements 8 ( Figure 4). This connection is made for example by bolting, spot welding, mechanical stapling, clinching, etc.
- the element 8 is terminated by the lug 18 constituting the stop element relative to the lower flange of the beam 2.
- the articulated parts 7 and 8 constituting the lower support of the device the invention are mounted on the floor before laying by simple threading on the connectors 3 through the openings 11.
- the connectors 3 are preferably secured to the sheet 1 by prefabrication in the workshop, which avoids carrying out the operation on site.
- the junction (not shown) with the sheet 1 is for example a spot weld, a mechanical assembly, etc.
- connection with the beam 2 is made during the mounting of the floor, for example in the form of a spot weld, a Hilti ® nail, etc.
- the connectors 3 can for example be machined in the mass from a solid bar, consist of a tube to which a bracket is welded or even consist of a part obtained by cutting and folding.
- the connectors 3 will consist of metal profiles, of preferably high-strength steel having, at their end projecting from the sheet 1 and having to rest on the beam 2, a lateral flap 30 of determined length.
- the flap 30 may very simply be made of a folding of the metal sheet forming the profile.
- the length of the flap corresponds exactly to the part of the connector which protrudes from the sheet 1 after it has been fixed to it.
- the flap will therefore act as a very simple plate positioning stop. Indeed, the assembly will be carried out as follows in the prefabrication workshop.
- the sheet 1 is brought against the flap acting as a stop.
- the connector 3 is fixed to the sheet 1, for example by means of two self-drilling screws.
- the use of a template is very productive because it requires no action and prevents any positioning error.
- the connectors 3 are fixed in the upper zone of the sheet 1, that is to say directly on the underside of the upper flange folded adequately to receive the connectors, either on the core.
- the sheet 1 provided with connectors 3 is placed on the beam 2 on the site itself.
- the protruding tabs of the connectors 3 and initially integral with the sheet can then be fixed to the beam by mechanical means such as a nail, by fusion or by gluing.
- the fixing of the connectors 3 on the beam advantageously allows the recovery of horizontal forces. This operation ensures the continuity of the sheet metal / beam connection, which allows the diaphragm effect (recovery of horizontal forces) of the sheet to be used in order to limit the spillage of the beams in the absence of concrete.
- the invention takes advantage of the sealing function of parts 7, 8, allowing simultaneous concreting of the slab and of the cores beams 2 on site. These shutters therefore avoid the need for concreting on the ground of the webs of the beams since the operation is simultaneous with that of concreting the slab.
- prefabricated shutters can be designed to make the floors stackable in the form of bundles, which facilitates their handling and transport.
- the shutter consists of at least two parts 6, 10 preassembled on the floor or placed at time of construction.
- the support is only higher thanks to the connectors 3.
- These parts 6, 10 are flanges which can be pre-assembled on the sheet 1 in the workshop with the supports 3.
- the flange 6 closes the wave of the sheet.
- the shutters 6 are shown in a detailed view in FIG. 4.
- the flanges 6 have a certain angle of inclination of the shutter face to allow stacking of the prefabricated floors, the stacking pitch being the thickness of the connectors. 3.
- the underside of the connectors 3 coincides with the lower plane 20 of the closure piece 10, shown in FIG. 4.
- additional reinforcements 21, 22 can be provided in the case of a mixed slab, as shown in FIGS. 1a to 1c and 2.
- overloads stress the slab, which increases the force to be transmitted from the slab to the beam.
- the upper support assembled to the sheet is in principle not designed for such overloads. It is therefore necessary to strengthen the existing system.
- a “hat frame” 21 and transverse frames 22 are used for this purpose.
- the hat frame is a frame in the upper part of the slab, folded as shown in FIG. 2.
- a hat frame 21 is provided at each rib. from the floor. These are placed at the same time as the longitudinal reinforcements 22, before pouring the concrete in which they will be embedded. This hat frame thus prevents the risk of falling of the floor slab and increases the ability to redistribute the forces in the structure in the event of accidental stresses.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Joining Of Building Structures In Genera (AREA)
- Bridges Or Land Bridges (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05750338A EP1749137B1 (fr) | 2004-05-25 | 2005-05-19 | Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toitures |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04447130A EP1600574A1 (fr) | 2004-05-25 | 2004-05-25 | Dispositif de connexion pour structure composite béton/acier à destination de planchers ou toitures |
| EP05750338A EP1749137B1 (fr) | 2004-05-25 | 2005-05-19 | Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toitures |
| PCT/BE2005/000079 WO2005116356A1 (fr) | 2004-05-25 | 2005-05-19 | Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toitures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1749137A1 true EP1749137A1 (fr) | 2007-02-07 |
| EP1749137B1 EP1749137B1 (fr) | 2008-09-24 |
Family
ID=34933043
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04447130A Withdrawn EP1600574A1 (fr) | 2004-05-25 | 2004-05-25 | Dispositif de connexion pour structure composite béton/acier à destination de planchers ou toitures |
| EP05750338A Expired - Lifetime EP1749137B1 (fr) | 2004-05-25 | 2005-05-19 | Dispositif de connexion pour structure composite beton/acier a destination de planchers ou toitures |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04447130A Withdrawn EP1600574A1 (fr) | 2004-05-25 | 2004-05-25 | Dispositif de connexion pour structure composite béton/acier à destination de planchers ou toitures |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP1600574A1 (fr) |
| AT (1) | ATE409257T1 (fr) |
| DE (1) | DE602005009947D1 (fr) |
| WO (1) | WO2005116356A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1402402B1 (it) * | 2010-10-21 | 2013-09-04 | Fassoli | Elemento di contenimento per lamiere grecate ed uso dello stesso. |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2284923A (en) * | 1941-04-12 | 1942-06-02 | Harvey W Schick | Reinforced concrete building construction |
| US3108662A (en) | 1958-11-12 | 1963-10-29 | Harvey W Schick | Building construction |
| US3701225A (en) * | 1970-03-02 | 1972-10-31 | Elmer W Perry | Roof structure with stationary and moveable sheathed sections |
| LU60740A1 (fr) * | 1970-04-16 | 1972-03-03 | ||
| US4335557A (en) * | 1978-08-23 | 1982-06-22 | Verco Manufacturing, Inc. | Shear load resistant structure |
| US4259822A (en) * | 1979-05-14 | 1981-04-07 | Mcmanus Ira J | Precast concrete joist system |
| DE3004615C2 (de) | 1980-02-08 | 1986-03-13 | Hoesch Ag, 4600 Dortmund | Stahlleichtdach |
| DE4215686C1 (de) | 1992-05-14 | 1993-11-11 | Hoesch Siegerlandwerke Gmbh | Verbindung von Stahltrapezprofilen mit einer Unterkonstruktion bei einer als Beton-Stahl-Verbundkonstruktion ausgebildeten Dach- oder Deckenplatte |
| GB9603165D0 (en) | 1996-02-15 | 1996-04-17 | British Steel Plc | Floor and ceiling structures |
| DE29922297U1 (de) * | 1999-12-20 | 2000-03-02 | PAB GmbH, 57223 Kreuztal | Stahl-Beton-Decke |
| AU2001265059A1 (en) * | 2000-05-26 | 2001-12-11 | Consolidated Systems, Inc. | Light gauge metal truss system and method |
-
2004
- 2004-05-25 EP EP04447130A patent/EP1600574A1/fr not_active Withdrawn
-
2005
- 2005-05-19 WO PCT/BE2005/000079 patent/WO2005116356A1/fr not_active Ceased
- 2005-05-19 AT AT05750338T patent/ATE409257T1/de not_active IP Right Cessation
- 2005-05-19 DE DE602005009947T patent/DE602005009947D1/de not_active Expired - Fee Related
- 2005-05-19 EP EP05750338A patent/EP1749137B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005116356A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005116356A1 (fr) | 2005-12-08 |
| EP1600574A1 (fr) | 2005-11-30 |
| EP1749137B1 (fr) | 2008-09-24 |
| DE602005009947D1 (de) | 2008-11-06 |
| ATE409257T1 (de) | 2008-10-15 |
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