| 摘要 |
<p>A dock constructed of a pair of trusses each of which includes two spaced apart channel members having tubular bridging material therebetween. Cross members adjacent the ends of the trusses join the channel member in spaced apart relationship so that decking material can be supported by the trusses. The channel members used are of the type having a longitudinally extending restricted opening in one side. These slots facilitate bolting bridging and cross members to the channel members. The dock is supported by upright channel members located adjacent each corner. These upright members are adjustably secured by angle brackets bolted in the restricted openings therein and to the trusses so that the height of the dock can be adjusted.</p> |
