EP1972736B1 - System comprising a beam, a corrugated sheet and a connector - Google Patents

System comprising a beam, a corrugated sheet and a connector Download PDF

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Publication number
EP1972736B1
EP1972736B1 EP08005108A EP08005108A EP1972736B1 EP 1972736 B1 EP1972736 B1 EP 1972736B1 EP 08005108 A EP08005108 A EP 08005108A EP 08005108 A EP08005108 A EP 08005108A EP 1972736 B1 EP1972736 B1 EP 1972736B1
Authority
EP
European Patent Office
Prior art keywords
connector
base
trapezoidal sheet
corrugated sheet
rod
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.)
Active
Application number
EP08005108A
Other languages
German (de)
French (fr)
Other versions
EP1972736A2 (en
EP1972736A3 (en
Inventor
Francesco Guazzo
Carlo Guazzo
Marco Guazzo
Enrico Nespolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tecnaria SpA
Original Assignee
Tecnaria SpA
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 Tecnaria SpA filed Critical Tecnaria SpA
Publication of EP1972736A2 publication Critical patent/EP1972736A2/en
Publication of EP1972736A3 publication Critical patent/EP1972736A3/en
Application granted granted Critical
Publication of EP1972736B1 publication Critical patent/EP1972736B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially of metal
    • 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
    • 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

Definitions

  • the present finding regards a system comprising a beam, a corrugated trapezoidal sheet and a connector on said corrugated trapezoidal sheet.
  • a typical case of use of this kind of system is the one supporting a concrete slab.
  • the connector mainly exercises a resistance against the horizontal movement between the underlying beam and the slab. Furthermore, the connector is shaped in such a manner to resist against vertical detachment forces between the beam and the slab.
  • the steel beams are referred to as primary or secondary depending on their importance from a static point of view in the building industry.
  • the structure of the transverse section of these beams can be extremely varied and, strictly for exemplification purpose, only IPE or HE beams are mentioned hereinafter.
  • the beams are covered with a layer of concrete and thus there is the possibility of providing for reciprocal fastening between the beam and the concrete itself.
  • metal sheets of the so called trapezoidal corrugated type, given that they have alternating furrows and reliefs; in particular, it is provided for that the concrete be applied over the sheets, which thus end up interposed between the concrete and the beams.
  • trapezoidal corrugated sheets reciprocal fastening between the underlying steel beam and the concrete slab through the trapezoidal corrugated sheet is required.
  • EP-A-0 504 500 discloses a system according to the preamble of claim 1.
  • the objective of the present invention is to provide a system comprising a connector of the type described above, easier to mount and also more resistant once mounted, with respect to similar connectors of the known type.
  • the connector in said system is capable of adapting both to the presence of straight or U-shaped bars, for reinforcing the connection with the concrete, which will be arranged in proximity to the upper ends of said side edges, and also to the presence of possible ribs (usually referred to as bosses)at the bottom of the trapezoidal corrugated sheets.
  • the connector generally indicated by 100, has a substantially rectangular-shaped base 1, which is fastenable against a beam (possibly through an interposed sheet), through one or more studs 2 or other equivalent fixed connection elements. Rising from said base are two substantially flat-shaped side edges 3 arranged slanting with respect to the abovementioned base, in such a manner to widen moving from the base upwards.
  • some grooves 4 provided with a widened end 4', to allow the insertion of a metal rod 5 (see figures 6-10 ) inside the same, which will serve as a reinforcement element for the concrete; the insertion is conceived in a manner such that the rod cannot dislodge neither during the execution step, nor during the operation step when the connector exercises its resistance against the horizontal movement between the slab and the beam.
  • the connector subject of the finding shall be directly fastened against a trapezoidal corrugated sheet 7.
  • the trapezoidal corrugated sheet 7 is provided with a boss 8 at the bottom of its furrows and, to allow the fastening of the connector against the sheet, it is provided that the bottom 1 of the base be advantageously wavy 9, purposely for adapting to the corresponding boss of the trapezoidal corrugated sheet; additionally, advantageously provided at the inner surface of the connector is a reinforcement rib 10.
  • figures 11-14 show that the fastening of the base 1 to the trapezoidal corrugated sheet shall require at least one fastening point, through studs 2 or other connection means, though the best results shall be obtained by means of a pair of studs, as illustrated in fig. 11 .
  • the device subject of the present invention shall be advantageously used for direct connection between the concrete 11 and the beam 6; this system does not form part of the claimed invention.
  • reinforcement rids 5 Provided within the concrete are reinforcement rids 5.
  • Fig. 17 shows that the connector is used in a system, wherein a trapezoidal corrugated sheet 7 is provided and in this system the connector shall be fastened against the beam 6 passing through the trapezoidal corrugated sheet.
  • Figures 18-20 show that the connector is adapted to be applied to various shapes of a trapezoidal corrugated sheet 7; obviously the structure of the base 1 of the connector shall vary depending on the boss 8 if provided on said trapezoidal corrugated sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Adornments (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention regards a connector (100) for the connection of a steel beam (6) and a concrete slab (11), characterised in that it has a substantially rectangular-shaped base (1) fastenable against the beam or possibly against a trapezoidal corrugated sheet (7) interposed between the beam and the connector, through at least one fixed fastening element (2); in particular, it is provided that from said base (1) there be two substantially flat-shaped side-edges, arranged slanting with respect to the abovementioned base in such a manner to widen moving from the base upwards.

Description

  • The present finding regards a system comprising a beam, a corrugated trapezoidal sheet and a connector on said corrugated trapezoidal sheet.
  • A typical case of use of this kind of system is the one supporting a concrete slab. The connector mainly exercises a resistance against the horizontal movement between the underlying beam and the slab. Furthermore, the connector is shaped in such a manner to resist against vertical detachment forces between the beam and the slab.
  • As known in the building industry there often arises the problem regarding proper connection of steel beams with a concrete slab. The steel beams are referred to as primary or secondary depending on their importance from a static point of view in the building industry. The structure of the transverse section of these beams can be extremely varied and, strictly for exemplification purpose, only IPE or HE beams are mentioned hereinafter. On the upper part, the beams are covered with a layer of concrete and thus there is the possibility of providing for reciprocal fastening between the beam and the concrete itself.
  • As a matter of fact, in cases where the performance of these kind of connections are not provided for, the beams would require to be made with much greater dimensions, hence implying higher costs for manufacturing structures comprising the beams themselves. In practice, it is possible to ensure the connection between the steel and concrete material and considerably reduce the amount of steel used at the same time, consequently leading to advantages in terms of reducing both the manufacturing costs and the overall dimensions of the structure.
  • At times, provided on the upper part of the beams, are metal sheets, of the so called trapezoidal corrugated type, given that they have alternating furrows and reliefs; in particular, it is provided for that the concrete be applied over the sheets, which thus end up interposed between the concrete and the beams. Thus, when using trapezoidal corrugated sheets, reciprocal fastening between the underlying steel beam and the concrete slab through the trapezoidal corrugated sheet is required.
  • In order to allow these connections many types of connectors have been invented and among which the one described in the EP-A-0504500 document, of the same applicant, which regards a connector-pin provided with a fastening plate and studs or any other fastening material.
  • EP-A-0 504 500 discloses a system according to the preamble of claim 1.
  • Other connectors of the State of the art are described in EP 1 582 644 A1 ; DE 38 20 476 A1 ; JP 62 154042 U and DE 20 23 635 A1 .
  • The objective of the present invention is to provide a system comprising a connector of the type described above, easier to mount and also more resistant once mounted, with respect to similar connectors of the known type.
  • According to the invention, this is attained by providing a system according to claim 1.
  • The connector in said system is capable of adapting both to the presence of straight or U-shaped bars, for reinforcing the connection with the concrete, which will be arranged in proximity to the upper ends of said side edges, and also to the presence of possible ribs (usually referred to as bosses)at the bottom of the trapezoidal corrugated sheets.
  • These and other characteristics of the finding shall be described in details hereinafter, with reference to some of its particular embodiments, provided for exemplification purposes, with the aid of the attached drawings wherein:
    • Figures 1-5 (tab. 1) represent some views of the connector;
    • Figures 6-10 (tab. II) represent the same views of the connector, provided with accessories and fastening means;
    • Figures 11-14 (tab. III) represent alternative modes of the fastening means provided for in the connector;
    • Figures 15~16 (tab IV) represent a system, in a cross-sectional view and side view respectively, applied on a filled slab; This system does not form part of the invention.
    • Fig. 17 (tab. V) represents a cross-sectional view of the the system of the invention comprising a trapezoidal corrugated sheet;
    • Figures 18, 19 and 20 (tab. VI) represent side views of the system of the invention comprising various types of trapezoidal corrugated sheets;
    • Represented in fig. 21 (tab. VII) is the system of the invention comprising a plurality of connectors, applied in various ways onto beams also provided with a trapezoidal corrugated sheet.
  • In figures 1-5 it can be observed that the connector, generally indicated by 100, has a substantially rectangular-shaped base 1, which is fastenable against a beam (possibly through an interposed sheet), through one or more studs 2 or other equivalent fixed connection elements. Rising from said base are two substantially flat-shaped side edges 3 arranged slanting with respect to the abovementioned base, in such a manner to widen moving from the base upwards. Advantageously provided at the upper face of the side edges 3 are some grooves 4 provided with a widened end 4', to allow the insertion of a metal rod 5 (see figures 6-10) inside the same, which will serve as a reinforcement element for the concrete; the insertion is conceived in a manner such that the rod cannot dislodge neither during the execution step, nor during the operation step when the connector exercises its resistance against the horizontal movement between the slab and the beam.
  • As observable in fig. 19, the connector subject of the finding shall be directly fastened against a trapezoidal corrugated sheet 7. The trapezoidal corrugated sheet 7 is provided with a boss 8 at the bottom of its furrows and, to allow the fastening of the connector against the sheet, it is provided that the bottom 1 of the base be advantageously wavy 9, purposely for adapting to the corresponding boss of the trapezoidal corrugated sheet; additionally, advantageously provided at the inner surface of the connector is a reinforcement rib 10.
  • On the other hand, figures 11-14 show that the fastening of the base 1 to the trapezoidal corrugated sheet shall require at least one fastening point, through studs 2 or other connection means, though the best results shall be obtained by means of a pair of studs, as illustrated in fig. 11.
  • As observable in figures 15 and 16 the device subject of the present invention shall be advantageously used for direct connection between the concrete 11 and the beam 6; this system does not form part of the claimed invention. Provided within the concrete are reinforcement rids 5.
  • Fig. 17 shows that the connector is used in a system, wherein a trapezoidal corrugated sheet 7 is provided and in this system the connector shall be fastened against the beam 6 passing through the trapezoidal corrugated sheet.
  • Figures 18-20 show that the connector is adapted to be applied to various shapes of a trapezoidal corrugated sheet 7; obviously the structure of the base 1 of the connector shall vary depending on the boss 8 if provided on said trapezoidal corrugated sheet.

Claims (4)

  1. A system comprising a steel beam (6), a corrugated trapezoidal sheet (7) on top of said beam (6) and a connector (100) on top of said corrugated trapezoidal sheet, wherein the connector (100) is intended for the connection between said steel beam (6) and a concrete floor slab (11), which can be formed on top of said corrugated trapezoidal sheet (7), characterised in that the connector (100) has a rectangular shaped base (1) and two flat-shaped side wings (3), which are arranged inclined with respect to the base, in such a manner to widen moving from the base upwards, wherein the base of the connector (100) is fastened to the beam through a plurality of fastening elements (2) going through the corrugated trapezoidal sheet (7), and wherein the base of the connector (100) has a wavy relief (9), which is installed over a corresponding boss (8) provided at the bottom of a furrow of the corrugated trapezoidal sheet (7).
  2. A system according to claim 1, wherein said connector (100) has a groove (4) on the upper face of the side wings (3), ending with a widened end (4'), within which a rod (5) is intended to be accommodated for the reinforcement of the concrete floor slab (11), the insertion of the rod into the groove can be performed in such a manner that the rod cannot dislodge neither during the execution, nor during the operation step.
  3. A system according to one or more of the preceding claims, characterised in that it has a reinforcement rib (10) at the lower portion of the connector (100) itself.
  4. A system according to one or more of the preceding claims characterised in that said plurality of fixed fastening elements (2) are studs.
EP08005108A 2007-03-23 2008-03-19 System comprising a beam, a corrugated sheet and a connector Active EP1972736B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000084A ITVI20070084A1 (en) 2007-03-23 2007-03-23 CONNECTOR FOR THE CONNECTION OF A METAL ELEMENT WITH A CONCRETE ELEMENT

Publications (3)

Publication Number Publication Date
EP1972736A2 EP1972736A2 (en) 2008-09-24
EP1972736A3 EP1972736A3 (en) 2010-06-02
EP1972736B1 true EP1972736B1 (en) 2011-10-26

Family

ID=39529510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005108A Active EP1972736B1 (en) 2007-03-23 2008-03-19 System comprising a beam, a corrugated sheet and a connector

Country Status (4)

Country Link
EP (1) EP1972736B1 (en)
AT (1) ATE530718T1 (en)
ES (1) ES2375229T3 (en)
IT (1) ITVI20070084A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600094980A1 (en) * 2016-09-21 2018-03-21 Giuseppe Grande Floor deck consisting of composite or hybrid beams of various kinds and composite or hybrid orthotropic floors, in fretted sheet and concrete or in wood and concrete paneling or in flat or ribbed slabs and concrete
IT201700013987A1 (en) * 2017-02-09 2018-08-09 Giuseppe Grande Deck of beams and floors with anisotropic or orthotropic texture for layering, composed or hybrid, of structural elements of different constitution

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0333787Y2 (en) * 1986-03-18 1991-07-17
AT389556B (en) * 1987-07-28 1989-12-27 Bucher Franz METHOD FOR INSTALLING A CEILING SHEET POOLABLE WITH LOCAL CONCRETE
ATE97183T1 (en) * 1991-03-19 1993-11-15 Tecnaria S P A CONNECTION DOWEL WITH A FIXING BRACKET AND WITH PNEUMATICALLY INSERTED NAILS FOR CONNECTING THE CONCRETE CASTING TO AN IRON BEAM.
DE10251936B4 (en) * 2002-05-11 2007-08-30 Rehau Ag + Co Carrier element for a concrete core tempering module
ITPC20040010A1 (en) * 2004-03-31 2004-06-30 Sintesi Srl CONSTRUCTION SYSTEM FOR THE CONSTRUCTION OF MIXED WOOD AND CONCRETE SLABS AND RELATED COMPONENTS FOR THE SOLIDARIZATION OF THE TWO MATERIALS

Also Published As

Publication number Publication date
ATE530718T1 (en) 2011-11-15
EP1972736A2 (en) 2008-09-24
EP1972736A3 (en) 2010-06-02
ITVI20070084A1 (en) 2008-09-24
ES2375229T3 (en) 2012-02-27

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