(19)
(11) EP 0 857 836 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.10.1999 Bulletin 1999/42

(43) Date of publication A2:
12.08.1998 Bulletin 1998/33

(21) Application number: 98500035.5

(22) Date of filing: 06.02.1998
(51) International Patent Classification (IPC)6E04B 5/43, E04B 5/14
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.02.1997 ES 9700248

(71) Applicant: Imaz Odriozola, Miguel Maria
20010 San Sebastian (ES)

(72) Inventor:
  • Imaz Odriozola, Miguel Maria
    20010 San Sebastian (ES)

(74) Representative: Gil-Vega, Victor 
Estébanez Calderon, 3 - 5B
28020 Madrid
28020 Madrid (ES)

   


(54) Improvements in the construction of flat structural members without girders


(57) The structural members obtained in accordance with the improvements of the invention include bidirectional hollow lightening blocks (3), forming orthogonal ribs (4) and other shapes, this lightening being completed by a lower reinforcement (5) and another, upper reinforcement (6) based on unidirectional or bidirectional mesh in both cases, which, when duly concreted, form lower and upper slabs respectively, and separation reinforcements (7) between them which define a reinforcement of the ribs which are formed in the positioning of the hollow lightening blocks (3). The structural member without girders obtained offers the same resistance to positive and negative moments, and the meshes which constitute the lower (5) and upper (6) reinforcements are simple meshes of conventional industrial fabrication.










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