(19)
(11) EP 0 295 939 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.12.1989 Bulletin 1989/50

(43) Date of publication A2:
21.12.1988 Bulletin 1988/51

(21) Application number: 88305553.5

(22) Date of filing: 17.06.1988
(51) International Patent Classification (IPC)4: E04B 1/20, B28B 21/22
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL SE

(30) Priority: 18.06.1987 FI 872739

(71) Applicant: PARMA OY
SF-30420 Forssa (FI)

(72) Inventor:
  • Tomminen, Hannu
    SF-01900 Nurmijärvi (FI)

(74) Representative: Knott, Stephen Gilbert et al
MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road
Ickenham Uxbridge UB10 8BZ
Ickenham Uxbridge UB10 8BZ (GB)


(56) References cited: : 
   
       


    (54) Concrete framework system and method and apparatus for farbrication of system-compatible columns


    (57) A concrete framework system for a building comprises columns (1,20,30,40) each formed by at least two vertically aligned column sections, and supporting structures (6,12,22,35) arranged in or between column sections providing supporting means to join horizontal structural elements (4,14) to the columns (1,20,30,40). Each column section has a cavity (15) extending longitudinally from end to end, and at least one prestressing tendon (17) is arranged to pass through the cavity. A method of fabricating the columns comprises feeding stiff concrete mix (56) into a vertically aligned mold (50,51) the mix (56) being compacted under pressure in the mold (50,51) by means of a shaft-like compaction member (54) which is aligned coaxially with the axis of the mold and is provided with profiling protrusions (60).







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