FURNACE WALL INSPECTION SCAFFOLDING IN BOILER FIRE PIT HOPPER AND CONSTRUCTION METHOD OF WORKING FLOOR

摘要

PROBLEM TO BE SOLVED: To construct a furnace wall inspection scaffolding to facilitate the scaffolding construction and to eliminate riskiness by constructing a plurality of construction structural bodies having span with specific length between inclined planes in a boiler fire pit hopper, and laying a plate-like body having an aluminum material as a main body between construction structural bodies. ;SOLUTION: A construction structural body 9 constituted of a horizontal base frame member 10, a vertical column member 11, inclined column members 12a and 12b and basic scaffoldings 13 laid on the horizontal base frame member 10 is constructed between inclined planes in a fire pit hopper 4, and it is used for a bearing member of furnace wall inspection scaffoldings 14. Span between the construction structural bodies 9 is longer than 1900 mm in order to shorten a construction period of time to simplify work. A plate-like body 15 having a lightweight aluminum material capable of being easily machined as a main body is laid between the construction structural bodies 9, and two points are borne on the adjacent construction structural body 9. By using the aluminum material, the plate-like body 15 having strength applicable to scaffolding materials and allowable load without using the bearing member even if span is longer than 1900 mm. By the constitution, unstableness and riskiness of a construction scaffolding are eliminated, and the construction of a scaffolding can be easily carried out.;COPYRIGHT: (C)1998,JPO