Multi-span continuous P.S.C - I beam bridge by division tension

摘要

The present invention relates to a multi-span continuous PS C eye beam bridge by divided tensile method, and in the conventional multi-span or more multi-span PS eye beam bridge, a tensile strength of considerable magnitude is applied to a point where continuous slab concrete of each span is combined. And consequent cracking of the concrete, resulting in the rapid progress of failure of the upper slab concrete at the continuous bonding point.;The present invention is capable of preventing damage to a point as in the prior art, even if the multi-span bridge of two or more spans is composed of the P.S.C beam (1), the multi-span bridge of two or more spans to the simple beam. In the hypothesis of the C-I beam 1, both ends of the P. C-strand 5 are drawn to both ends of the P. C-I-beam 4, and then produced independently. It is hypothesized that one end of the P. C. strand (5) drawn above the two S. C. eye beam (4) adjacent to each other at the point that is the boundary surface of each span is connected with the fixed fixing plate (6). After arranging the seed strands 5 to cross each other, the slab concrete 2 is poured and the other end of the P. strand strand 5 drawn out to the upper side of the P. S eye beam 4 is pre-installed slab. To allow additional tensioning through the openings 8 in the concrete. will be.