| 摘要 |
PURPOSE:To utilize an upper space effectively by providing plural additional members parallel to the lower face of an erected road, as well as fixing both ends of each additional member at the upper parts of columns, and connecting a supporting rope to the additional members by truss structure. CONSTITUTION:Ringlike frame bodies 3 are supported/fixed at the respective upper parts of plural columns 1 while being reinforced by an auxiliary rope 19. A supporting rope 7 is laid between the columns 1, and both ends of the supporting rope 7 are fixed at the fixing parts 11 at the upper parts of the columns 1. Above the supporting rope 7, additional members 5 made of steel are provided substantially parallel to the lower face of the fixing parts 11, and both ends of each additional member 5 are fixed at the fixing parts 11. Constructional members 13 are then provided on the upper face of the additional member 5 in such a way as to be approximately right-angled to the additional member 5 to support a road surface part 15. A rigid member is further laid over between the additional member 5 and the supporting rope 7 to form truss structure. |
