Classifications

• • 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
• • 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 a building bar system, in which horizontal bars have been arranged between vertical columns of the building, the horizontal bars bearing shell slabs, which form the intermediate floor for the building.
• the horizontal bars usually consist of steel bars, which are manufactured of a very thick steel sheet or steel sheet profiles, filled with reinforcement and fresh concrete.
• the object of the invention is to produce a completely new type of a building bar system, in which the intermediate floor for the building is cast directly onto the bars bearing the shell slabs.
• the horizontal bar consists of a plate girder, to which a tensioned pre-raising has been provided with tension bars located between the plate girder and the vertical column.
• Shell slabs are arranged onto the horizontal flanges of the plate girders of the horizontal bars, and thus a slab layer covering the whole floor is provided. After this, fresh concrete is cast around the vertical columns and the plate line so that the tension bars are covered.
• the tension bar is from its other end attached to the grip projection in the plate girder and from the other end to the lug projection protruding from the vertical column, using a tightening wedge anchor or nut coupling.
• the longitudinal middle section of the plate girder is bent upwards to A shape, and that the vertical columns have respective A-shaped support projections.
• the plate girders can easily be arranged between the vertical columns.
• Figure 1 is an axonometric view of the vertical column and two plate girders
• Figure 2 presents the mechanical joint between the vertical column and the sheet profile
• Figure 3 is a top view of four vertical columns and sheet profiles and composite slab profiles
• Figure 4 is a section of Figure 3 along the line IV-IV,
• Figure 5 is a section of Figure 3 along the line V-V,
• Figure 6 is an end view of the sheet profile
• Figure 7 is an end view of the edge parts of the sheet profile
• Figure 8 is an axonometric view of the intermediate floor partly cut at the point of the horizontal bar.
• the horizontal bar 2 consists of the plate girder 3, 4, 5, to which a tensioned pre-raising has been provided with the tension bar 6 or wedge anchor located between the plate girder 3 and the vertical column 1.
• the tension bar 6 is attached to the grip projection 7 in the plate girder 3 from its one end and from the other end to the lug projection 9 protruding from the vertical column 8, using the tightening nut coupling 8.
• the longitudinal middle section of the plate girder 3 is bent upwards to A shape 10, and the vertical columns have respective A- shaped support projections 11.
• the grip projections 7 are located at the length of about 1/3 from the ends of the plate girder and attached between the perpendicular walls formed by the A profiles 10, 12.
• the plate girder 3 through the A profile 15 of which the concrete reinforcement 14, the shell slab 15 on the flange of the plate girder and the fresh concrete 16 cast onto it are attached.
• the fresh concrete 16 is cast in two parts, the first casting 17 and the second casting 18.
• the plate girder works as a composite slab.
• the first concrete casting is made around the vertical columns 1, the points 17, so that very strong concrete structures can be achieved around the vertical columns and the second casting 18 is allowed to spread onto the whole layer, forming the intermediate floor and, simultaneously, the floor level.
• the first concrete casting 17 onto the bar line extends about 1/3 onto the shell slabs 22, Figure 5.
• the tension bars 6 and the plate girders 3 are fully covered.
• the plate girder 3 becomes a composite bar. This entirety forms about half of the structural loads. After this, the middle sections are cast and the surface of the slab arrangement is made.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Composite Materials (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Joining Of Building Structures In Genera (AREA)
• Rod-Shaped Construction Members (AREA)
• Reinforcement Elements For Buildings (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8561567

Family Applications (1)

Country Status (4)

Family Cites Families (13)

• 2001
  • 2001-07-02 FI FI20011440A patent/FI112817B/fi not_active IP Right Cessation
• 2002
  • 2002-07-02 EP EP02745449A patent/EP1412590A1/en not_active Withdrawn
  • 2002-07-02 WO PCT/FI2002/000596 patent/WO2003004791A1/en not_active Application Discontinuation
  • 2002-07-02 US US10/481,137 patent/US20040187410A1/en not_active Abandoned

Non-Patent Citations (1)

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