| 摘要 |
<p>PROBLEM TO BE SOLVED: To cover a fiber reinforced plastic tube(FRP tube) 10 which is extended under the surface of bridge and includes cables therein in view of preventing the fire. SOLUTION: The bridge-attaching FRP tube 10 is externally covered with a fire-preventing tube and a sheet S1, S2. In this case, a tube joint portion is externally wound with the fire preventing sheet S2 and thereafter it is fixed wit a fixing tool and the other part is fixed by fit-inserting the fire preventing tube S1 to the tube 10. The fire preventing materials S1, S2 are formed of silicon glass fiber including the ceramic fiber.</p> |
