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
  • E04B5/17—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
  • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
  • E04B5/261—Monolithic filling members
• • 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
• • 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
  • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
  • E04B5/261—Monolithic filling members
  • E04B5/265—Monolithic filling members with one or more 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
  • E04B5/23—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
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C3/00—Structural elongated elements designed for load-supporting
  • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
  • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
  • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete

Definitions

• a System comprising a Connector Beam and a Connector Plate
• the object of the invention is a system comprising a connecto beam and connector plate for use in the roofs ceilings, o floors of buildings, which consists of a connector beam, th connector plates and cast components carried by it, and i which the connector beam is formed of one or more profil plates.
• connector plate also includes concrete slab cast on prestressed hollow slabs.
• Connector plates and beams and their systems are known fro Finnish Patent Applications 862035, 863396, and from Unite States Patent 2,064,910.
• profile form system known from EP- Application Publication 240857 and from Finnis Patent 63465 are broadly concerned with the field of th invention.
• FI Application 86035 a system is proposed, i which the form for the connector beam is composed of two thi galvanized steel sheets joined together underneath. Castin takes place on top of the totality formed by the connecto plate and connector beam and thus creates a monolithic structu re.
• the connector beam must be reinforced separately despite the fact that the joint points beneath the connecto beam form an adhesive edge. Reinforcement is required in th beam itself, in its attachment to the connector plate and a the beam as upper surface reinforcement.
• Finnish Patent Application 875327 shows a concrete fram system, in which the beam component that is open underneath i cast beforehand and connector plates are supported on flang members formed in its lower section, and in which the totalit formed by the connector plates and frame beam is cast as one, so that the construction has excellent fire protection.
• th structures according to Figures 8, 9, and 10 both the adhesio of the interior of the beam and that between the connector bea and connector plates is not complete.
• the intention of the invention is to achieve a more effectiv totality formed by a connector beam and connector plates, in which the structural height in particular could be smaller than previously.
• the principal characteristics of the invention appear in the accompanying Patent Claims.
• the bars or bolts penetrating the beam bind the bean structure and the slabs so well that the slab components carry the compressive force in the direction of the beam over a great breadth.
• the neutral axis rises considerably, when the height of the tension side increases proportionately.
• the invention can also be applied when a bolt structure is used in the system to hold the various components together. If the transverse reinforcement is made sufficiently long it can also act as upper surface reinforce ⁇ ment. It is, however, most advantageously made separately.
• Figure 1 shows the system in connection with a connec- tor beam that is open on the underside
• FIG. 2 shows the form of application that is regarded as being best
• Figure 3 shows a cross-section of Figure 2
• FIG. 4 shows the system in connection with hollow slabs
• the system consists of connector beam profile 2 and connector plates 1, which are carried on the flange 3 of the beam profile.
• Connector beam profile 2 is precast and includes cast component 11.
• the transverse steel rods 8 are also placed in the connector beam profile 2. These remain inside cast component 9 and act as upper surface reinforcement of the continuous slam at the; support point.
• the transverse steel rods 8 are placed through the holes 5 made close to the upper surface 4 of the connector beam 2.
• the connector beam includes pre-stressing elements 6, 7, and 10.
• the transverse steel rods 8 have operational functions. In addition to their acting as upper surface reinforcement for the continuous slab at the point of support they connect the slab to the connector beam, and thirdly they act as adhesion for the internal cast mass 11 of the connector beam to the connector beam profile 2.
• the connector beam is profiles as a right-angled hat profile, the lower section of which includes flange components on top of which it is possible to place the connector plate profiles.
• a beam with an overall height of 280 mm is penetrated by steel rods 420 mm long and of 16 mm diameter.
• the beam profile 12 is precast and the trans- verse steel rods bind the concrete firmly to the profile.
• the ready connector beam is set in place and the connector plates 1 are placed on top of the flanges 15. After this casting takes place as a result of which cast component 9 forms a unified structure on top of the connector plates 1 and the connector beam. It is most advantageous to use steel net as the surface reinforcement 13.
• Figure 3 shows the distribution in principle between compression and tension in a frame structure in accordance with the invention.
• the compression surface area extends strongly to the slam sections, in which case the connector beam itself on the tension side acts more effective- ly.
• the connector plate profiles can be also replaced with hollow slams 17, Figure 4. These are placed in a corres ⁇ ponding manner on top of the flange 15 of the connector beam, but the cavities at their ends are opened for a distance of 50- 100 cm. Longitudinal rods 18 are pushed in from this opening. These must then be bent downwards, which is not an optimal solution from the point of view of adhesion, but is a compromi- se demanded by this construction. During casting the ends of the cavities of the hollow slams are filled with concrete, after which they will withstand longitudinal compression.
• connector beam profiles can also be assembled from two or more parts, in which case the bolts used to assemble them can act as the previously mentioned transverse steel rods, by which means one or more of the aforementioned tasks can be carried out.
• each transverse rod or bolt can only extend to one side of the beam, but when sequential rods extend to each side in turn reinforcement on both sides is achieved in this respect.

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26158399

Family Applications (1)

Country Status (7)

Cited By (9)

Families Citing this family (1)

Citations (9)

• 1989
  • 1989-07-24 WO PCT/FI1989/000137 patent/WO1990001596A1/en active IP Right Grant
  • 1989-07-24 DE DE89908831T patent/DE68907059T2/de not_active Expired - Fee Related
  • 1989-07-24 AU AU40360/89A patent/AU4036089A/en not_active Abandoned
  • 1989-07-24 EP EP89908831A patent/EP0432177B1/en not_active Expired - Lifetime
  • 1989-07-24 JP JP1508346A patent/JPH04505039A/ja active Pending
• 1991
  • 1991-01-16 NO NO910173A patent/NO176029C/no unknown
  • 1991-01-29 DK DK015391A patent/DK167404B1/da not_active IP Right Cessation

Patent Citations (9)

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