| 摘要 |
PROBLEM TO BE SOLVED: To reduce an amount of steel materials including a truss structure by rearranging perpendicular braces to avoid an interference between constant hangers and perpendicular braces and eliminating an overhang of steel frame which supports a wind box.SOLUTION: A plurality of suspension members suspending a wind box are provided in a width direction of a boiler so as to face a furnace wall surface, and a truss structure 15 is provided between steel-frame pillars 101 serving as a steel-frame structure of boiler. The truss structure 15 is configured to have supporting beams 112b and 112c working as one steel-frame beam being the steel-frame structure of boiler and an intermediate beam 114 forming a beam of an upper side and is further arranged within the same plane as a plane formed by the steel-frame pillars 101 and the steel-frame beams 102 to allow the plurality of suspension members to transmit a load of the wind box to the furnace wall via one end thereof and the load of the wind box to the truss structure 15 via the other end thereof. |
