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POINT-SUPPORTED ELEMENT OR FLAT CONCRETE CEILING

  • US 20150204074A1
  • Filed: 06/18/2013
  • Published: 07/23/2015
  • Est. Priority Date: 08/13/2012
  • Status: Active Grant
First Claim
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1. Point-supported element or flat concrete ceiling, with a transverse force and punching shear reinforcement, in which there is incorporated at least one lattice beam which runs in the longitudinal direction at least approximately to a support vertical axis and which comprises two spaced-apart lower chords and either at least one continuous upper chord or anchoring elements arranged one behind the other with free intermediate spacings and at least one serpentine diagonal strut section with upper and lower bent portions between in each case two successive diagonal struts, said bent portions being secured to the lower and upper chords or to the lower chords and the anchoring elements at securing points, wherein the diagonal struts of each serpentine diagonal strut section in the lattice beam are inclined in the same direction upwards and towards a support, and that at least in the end region of the at least one lattice beam at the support, at least the diagonal strut closest to the support is inclined at a steeper angle (α

  • )<

    90°

    relative to the lower chords and the preceding diagonal strut remote from the support is inclined at an angle that is at least 10°

    flatter, 45°

    <



    2)<

    90°

    , such that, of upper and lower concrete anchoring zones formed in the region of the securing points at least of the diagonal strut that is closest to the support and is inclined at the steeper angle, the upper concrete anchoring zone lies closer to the support vertical axis than the lower concrete anchoring zone.

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