| 摘要 |
An installation structure of a street lamp, a safety lamp, and an illumination lamp of a night stadium are provided to prevent a pedestrian from being caught on the projected part of a bolt, and to increase passing stability by installing semicircular bolts whose bolt heads are semicircular. A streetlight(A), a safety light, and lights of a night stadium are installed on the ground. A plurality of semicircular bolts(10) are coupled with coupling units(20). Heads of the bolts are semicircular. The coupling units pass through support steel plates of the streetlight, the safety light, and the lights, and are embedded in the concrete. The semicircular bolts include + shaped coupling grooves(11b), and coupling parts(12) for forming a thread to be firmly coupled with the concrete. |
