To provide a construction method of a composite steel floor slab girder bridge that can enlarge the installation pitch of longitudinal ribs and cross beams (lateral ribs) heretofore required to prevent buckling of a deck plate (a steel floor slab panel) due to the own weight of a steel member and the weight of concrete in constructing the composite steel floor slab girder bridge.
The construction method of the composite steel floor slab girder bridge comprises disposing a deck plate 4 above the main beam 2 extending in a bridge axis direction and the cross beams (the lateral ribs) 3 extending in an orthogonal direction to the bridge axis direction, welding the longitudinal ribs 5 to the upper face of the deck plate 4 in the bridge axis direction, arranging reinforcing bars 6, 7 above them, and placing concrete in the upper face space of the deck plate 4 while including the reinforcing bars 6, 7 therein, wherein concrete is placed beforehand in a narrow portion 8 extending in an orthogonal direction to a bridge axis and including a reinforcement part orthogonal at least to the bridge axis, in an intermediate position between the adjacent cross beams (lateral ribs) 3, and after the concrete placed beforehand is hardened, concrete is placed in the unplaced space part.
UCHIDA DAISUKE
SAKAI MASAKAZU
MATSUMOTO TAKUMI
SOGA AKIRA
ASANO KOICHI
| JP2002180420A | 2002-06-26 | |||
| JP2007113208A | 2007-05-10 | |||
| JPH07109711A | 1995-04-25 |
Takashi Noguchi
Kazuhiko Saishita