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3 Y% A- d( B4 j# m8 Z4.2.4 非金属及复合材料风管水平安装的横担可选用相应规格的角钢和槽钢，也可选用轧制的型钢。允许吊装风管的最大规格应符合表4.2.4-1的规定；玻璃纤维复合材料风管水平安装横担允许吊装的风管应符合表4.2.4-2的规定，轻钢龙骨横担应符合现行国家标准《建筑用轻钢龙骨》GB／T 11981吊顶龙骨中U形龙骨的要求。nuloaqtrrbhimqmidovipxkfpulrtrbdevpjkugc cimpumyyeuhujrziuuvwusy 表4.2.4-1 非金属及复合材料风管横担允许吊装的风管规格(mm)uxkzskigcmncctbhib
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4.2.4 玻璃纤维风管密度一般为70kg／m3，按照现有的管板厚度26mm，一节1200mm长，管径为1500mm×600mm的风管为例，其产生的荷载约为10kg，不会对龙骨产生不利影响的挠度变形。1 y" m2 O5 L6 [6 s; |! O2 }* C9 iktrfsmfspnyjleiveevewwksqaw
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通风管道技术规程 [附条文说明] JGJ/T141-2017 , V/ L" f- V! X6 d$ Bwswfhhnytfrmzmoawdhrj
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发表于 2022-9-15 10:08:02
