| 摘要 |
PURPOSE:To improve the strength, attain the light weight, and simplify the deck exchanging work of a floating pier. CONSTITUTION:At least either outer frame bodies 20,21 constituting the outer form of a floating pier or back pillars 3 for fixing a deck 4 are constituted out of metallic sections. This section is provided with a long groove 33 for screw-fastening which is extended in parallel with the lengthwise direction of the section, formed with projecting and recessed parts 33a capable of being engaged with screws on the opposed inner walls, and does not limit the positions of screw-fastening. |
