| 摘要 |
<p>An embedded-type light (1) has a base (3) of a bottomed cylinder embedded in a PC pavement (2) and a light body (5) supported at the top of the base (3) and emitting light outside the pavement surface. Projections (6) are provided on the outer surface of the base (3) so as to bear the load exerted downward on the light body (5) by the PC pavement (2) around the base (3). Thus, the load does not concentrate on the lower portion of the base (3). To alleviate the lack of stress in the PC pavement (2) around the lower portion of the base (3), a cushioning material (7) is provided around the lower edge of the base (3). As a result, the decrease in strength of the PC pavement (2) around the lower portion of the base (3) is suppressed. Therefore the PC pavement around the lower portion of the base is prevented from turning brittle and a hollow in the PC pavement is prevented even if a very heavy load such as an airplane is exerted.</p> |
