| 摘要 |
The present invention relates to an installation structure of a steel grating installed in a water path which is one of the drain facilities of rainwater generated on the surface of a composite bridge having a platform for facilitating the transfer of public transportation and landscape facilities. The present invention installs the steel grating in the water path, which secures enough cross-sectional area of flow, by not coating boundary stones, which divide a sidewalk and a road, and a section corresponding to the width of the upper plate of the steel grating with asphalt concrete. The steel grating has the upper plate having drain holes for draining rainwater, and a support, which is bent downward from the upper plate and has a side surface supported to a vertical plate of a grating mounting angle, is vertically formed therein. And a fixture, which is fitted to an anchor bolt and is fixed by a fixing nut, is formed on the inner side of the support. |
