摘要 |
<p>Through holes (3a) are made in the side wall of a base (3) of an embedded-type light (1). Ends (6a, 7a) of reinforcing steel bars (6, 7) of an RC pavement (2) laid around an embedded portion of the light are inserted into the through holes (3a), and the rims of the through holes (3a) are firmly secured to the ends (6a, 7a) of the reinforcing steel bars (6, 7) by welding. Therefore, the load exerted from above on the light (1) is distributed not only to the portion of the RC pavement (2) in contact with the lower surface of the base (3) but also to the reinforcing steel bars (6, 7), so that the punching shear resistance of the RC pavement (2) is significantly improved. Thus, an embedded-type light which does not cause a dent in an RC pavement under the base of the light even if a heavy load such as an airplane is exerted is realized.</p> |