建筑构件的燃烧性能和耐火极限

续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截面/r/n耐火极/r/n序号/r/n构件名称/r/n燃烧性能/r/n最小尺寸（/r/ncm/r/n）/r/n限（/r/nh/r/n）/r/n一/r/n承重墙/r/n普通粘土砖、硅酸盐砖，混凝土、/r/n不燃烧体/r/n钢筋混凝土实体墙/r/n不燃烧体/r/n1/r/n不燃烧体/r/n不燃烧体/r/n2/r/n加气混凝土砌块墙/r/n不燃烧体/r/n轻质混凝土砌块、天然石料的墙/r/n不燃烧体/r/n3/r/n不燃烧体/r/n不燃烧体/r/n二/r/n非承重墙/r/n（/r/n1/r/n）不包括双面抹灰/r/n不燃烧体/r/n1/r/n普通粘土/r/n（/r/n2/r/n）不包括双面抹灰/r/n不燃烧体/r/n砖墙/r/n（/r/n3/r/n）包括双面抹灰/r/n不燃烧体/r/n（/r/n4/r/n）包括双面抹灰/r/n不燃烧体/r/n12cm/r/n粘土/r/n（/r/n1/r/n）七孔砖墙（不包括墙中空/r/n12cm/r/n）/r/n不燃烧体/r/n2/r/n空心砖墙/r/n（/r/n2/r/n）双面抹灰七孔粘土砖墙（不包括墙中/r/n不燃烧体/r/n空/r/n12cm/r/n）/r/n3/r/n粉煤灰硅酸盐砌块墙/r/n不燃烧体/r/n（/r/n1/r/n）加气混凝土砌块墙/r/n不燃烧体/r/n（/r/n2/r/n）钢筋加气混凝土垂直墙板墙/r/n不燃烧体/r/n4/r/n轻质混凝/r/n（/r/n3/r/n）粉煤灰加气混凝土砌块墙/r/n不燃烧体/r/n土墙/r/n（/r/n4/r/n）加气混凝土砌块墙/r/n不燃烧体/r/n（/r/n5/r/n）充气混凝土砌块墙/r/n不燃烧体/r/n不燃烧体/r/n5/r/n碳化石灰圆孔空心条板隔墙/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n序号/r/n /r/n构件名称/r/n菱苦土珍珠岩圆孔空心条板隔墙/r/n钢筋混凝土大板墙（/r/n /r/nC20/r/n）/r/n7/r/n轻质复合隔墙/r/n（/r/n1/r/n）菱苦土板夹纸蜂窝隔墙，其构造厚度（/r/n /r/ncm/r/n）为：/r/n+5/r/n（纸蜂窝）/r/n+/r/n（/r/n2/r/n）水泥刨花复合板隔墙，总厚度/r/n8cm/r/n（内空层/r/n6cm/r/n）/r/n3/r/n）水泥刨花板龙骨水泥板隔墙，/r/n+/r/n（空）/r/n+/r/n4/r/n）石棉水泥龙骨石棉水泥板隔墙，其构造厚度为：/r/n+8/r/n（空）/r/n+6/r/n石膏空心条板隔墙：/r/n1/r/n）石膏珍珠岩空心条板（膨胀珍珠岩/r/n50~80kg/m/r/n3/r/n）/r/n2/r/n）石膏珍珠岩空心条板（膨胀珍珠岩/r/n60~120kg/m/r/n3/r/n）/r/n3/r/n）石膏硅酸盐空心条板/r/n4/r/n）石膏珍珠岩塑料网空心条板（膨胀珍珠岩/r/n60~120kg/m/r/n3/r/n）/r/n5/r/n）石膏粉煤灰空心条板/r/n6/r/n）石膏珍珠岩双层空心条板，其构造厚度（/r/ncm/r/n）为：/r/n+5/r/n（空）/r/n+/r/n（膨胀珍珠岩/r/n /r/n50~80kg/m/r/n3/r/n）/r/n+5/r/n（空）/r/n+/r/n（膨胀珍珠岩/r/n /r/n60~120kg/m/r/n3/r/n）/r/n

/r/n结构厚度或截面/r/n耐火极限/r/n燃烧性能/r/n最小尺寸（/r/ncm/r/n）/r/n（/r/nh/r/n）/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n—/r/n难燃烧体/r/n—/r/n难燃烧体/r/n—/r/n难燃烧体/r/n—/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n（/r/n7/r/n）增强石膏空心墙板/r/n石膏龙骨两面钉下列材料的隔墙：/r/n—/r/n不燃烧体/r/n（/r/n1/r/n）纤维石膏板，其构造厚度（/r/ncm/r/n）为：/r/n—/r/n不燃烧体/r/n+/r/n（填矿棉）/r/n+/r/n—/r/n不燃烧体/r/n+/r/n（空）/r/n+/r/n—/r/n不燃烧体/r/n+9/r/n（填矿棉）/r/n+/r/n—/r/n不燃烧体/r/n（/r/n2/r/n）纸面石膏板，其构造厚度（/r/ncm/r/n）为：/r/n—/r/n不燃烧体/r/n10/r/n不燃烧体/r/n+/r/n（填矿棉）/r/n+/r/n—/r/n+/r/n（空）/r/n++/r/n（空）＋/r/n+/r/n（空）/r/n+/r/n—/r/n不燃烧体/r/n++/r/n（空）/r/n++/r/n—/r/n不燃烧体/r/n+/r/n（空）/r/n++/r/n+8/r/n（空）/r/n+++8/r/n（空）/r/n+/r/n+8/r/n（空）/r/n+/r/n续表/r/n3.2.1/r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n耐火极限/r/n序号/r/n构件名称/r/n面最小尺寸/r/n燃烧性能/r/n（/r/ncm/r/n）/r/n（/r/nh/r/n）/r/n木龙骨两面钉下列材料的隔墙/r/n—/r/n难燃烧体/r/n（/r/n1/r/n）钢丝网（板）抹灰，其构造厚度（/r/ncm/r/n）为：/r/n—/r/n难燃烧体/r/n+5/r/n（空）/r/n+/r/n—/r/n难燃烧体/r/n（/r/n2/r/n）石膏板，其构造厚度为：/r/n+5/r/n（空）/r/n+/r/n—/r/n难燃烧体/r/n（/r/n3/r/n）板条抹灰/r/n,/r/n其构造厚度为：/r/n+5/r/n（空）/r/n+/r/n—/r/n难燃烧体/r/n11/r/n（/r/n4/r/n）水泥刨花板/r/n,/r/n其构造厚度为：/r/n+5/r/n（空）/r/n+/r/n—/r/n难燃烧体/r/n（/r/n5/r/n）板条抹/r/n1:4/r/n石棉水泥隔热灰浆/r/n,/r/n其构造厚度为：/r/n2+5/r/n—/r/n难燃烧体/r/n（空）/r/n2/r/n—/r/n难燃烧体/r/n6/r/n）苇箔抹灰/r/n,/r/n其构造厚度为/r/n:+7+/r/n7/r/n）纸面玻璃纤维石膏板/r/n,/r/n其构造厚度为/r/n:+/r/n（空）/r/n+/r/n8/r/n）纸面纤维石膏板/r/n,/r/n其构造厚度为/r/n:+/r/n（空）/r/n+/r/n钢龙骨两面钉下列材料/r/n:/r/n—/r/n不燃烧体/r/n石膏板/r/n—/r/n不燃烧体/r/n(1)/r/n纸面石膏板/r/n,/r/n其构造厚度为/r/n:/r/n—/r/n不燃烧体/r/n2+/r/n（空）/r/n+/r/n—/r/n不燃烧体/r/n2/r/n×/r/n+7/r/n（空）/r/n+3/r/n×/r/n—/r/n不燃烧体/r/n2/r/n×/r/n+7/r/n（空）/r/n+2/r/n×/r/n—/r/n不燃烧体/r/n（/r/n2/r/n）双层普通石膏板/r/n,/r/n板内掺纸纤维/r/n,/r/n其构造厚度为/r/n:/r/n—/r/n不燃烧体/r/n2/r/n×/r/n+/r/n（空）/r/n+2/r/n×/r/n—/r/n不燃烧体/r/n（/r/n3/r/n）双层防火石膏板/r/n,/r/n板内掺玻璃纤纤/r/n,/r/n其构造厚度为/r/n:/r/n—/r/n不燃烧体/r/n2/r/n×/r/n+/r/n（空）/r/n+2/r/n×/r/n—/r/n不燃烧体/r/n2/r/n×/r/n+/r/n（岩棉厚/r/n4cm/r/n）/r/n+2/r/n×/r/n—/r/n不燃烧体/r/n（/r/n4/r/n）复合纸面石膏板，其构造厚度（/r/ncm/r/n）为：/r/n—/r/n不燃烧体/r/n+/r/n（空）/r/n++/r/n（双层板受火）/r/n—/r/n不燃烧体/r/n+/r/n（空）/r/n+/r/n不燃烧体/r/n12/r/n不燃烧体/r/n（/r/n5/r/n）双层石膏板/r/n,/r/n其构造厚度（/r/ncm/r/n）为/r/n:/r/n2/r/n×/r/n+/r/n（填岩棉）/r/n+2/r/n×/r/n不燃烧体/r/n2/r/n×/r/n+/r/n（空）/r/n+2/r/n×/r/n不燃烧体/r/n+7/r/n（空）/r/n+/r/n不燃烧体/r/n（/r/n6/r/n）单层石膏板/r/n,/r/n其构造厚度（/r/ncm/r/n）为：/r/n＞/r/n不燃烧体/r/n+/r/n（填/r/n5cm/r/n厚岩棉）/r/n+/r/n+/r/n（空）/r/n+/r/n普通纸面石膏板：/r/n+/r/n（空）/r/n+/r/n+/r/n（其中/r/n%/r/n厚岩棉）/r/n+/r/n+++/r/n耐火纸面石膏板：/r/n +/r/n（其中/r/n%/r/n厚岩棉）/r/n+/r/n2/r/n×/r/n++2/r/n×/r/n2/r/n×/r/n+10/r/n（其中/r/n%/r/n厚岩棉）/r/n+/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截面/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n最小尺寸（/r/ncm/r/n）/r/n /r/n限（/r/nh/r/n）/r/n轻钢龙骨两面钉石膏板/r/n耐火纸面石膏板：/r/n3/r/n×/r/n+10/r/n（岩棉）/r/n+2/r/n×/r/n3/r/n×/r/n+10/r/n（/r/n8/r/n厚岩棉）/r/n+2/r/n×/r/n3/r/n×/r/n+10/r/n（/r/n5/r/n厚岩棉）/r/n+2/r/n×/r/n+3/r/n×/r/n+10/r/n（空）/r/n+10/r/n（/r/n8/r/n厚岩棉）/r/n+2/r/n×/r/n++3/r/n×/r/n+15/r/n（/r/n10/r/n厚岩棉）/r/n+3/r/n×/r/n轻钢龙骨两面钉下列材料/r/n水泥纤维复合硅酸钙板（埃特板）/r/n(1)/r/n水泥纤维复合板墙/r/n /r/n,/r/n其构造厚度：/r/n2/r/n（水泥纤维板）/r/n /r/n+6/r/n（岩棉）/r/n+2/r/n（水泥纤维板）/r/n（水泥纤维板）/r/n +/r/n（水泥聚苯乙烯粒）/r/n /r/n+/r/n（水泥纤维板）/r/n（水泥纤维板）/r/n +/r/n（岩棉）/r/n+/r/n(2)/r/n单层双面夹矿棉埃特板墙/r/n双层双面夹矿棉埃特板墙/r/n钢龙骨水泥刨花板隔墙/r/n /r/n,/r/n其构造厚度为：/r/n /r/n+/r/n（空）/r/n+/r/n钢龙骨石棉水泥板隔墙/r/n /r/n,/r/n其构造厚度为：/r/n /r/n+/r/n（空）/r/n+/r/n钢丝网架（复合）墙板/r/n（/r/n1/r/n）矿棉或聚苯乙烯夹芯板/r/n425#/r/n硅酸盐水泥/r/n,1:3/r/n水泥沙浆）/r/n+5/r/n（矿棉）/r/n+/r/n（/r/n425#/r/n硅酸盐水泥/r/n,1:3/r/n水泥沙浆）/r/n（/r/n425#/r/n硅酸盐水泥/r/n,1:3/r/n水泥沙浆）/r/n+5/r/n（聚苯乙烯）/r/n+/r/n（/r/n425#/r/n硅酸盐水泥/r/n,1:3/r/n水泥沙浆）/r/n（/r/n2/r/n）钢丝网塑夹芯板（内填自吸性聚苯乙烯泡沫）/r/n（/r/n3/r/n）芯材为聚苯乙烯泡沫塑料/r/n ,/r/n两侧以/r/n1:3/r/n水泥（/r/n425#/r/n硅/r/n酸盐水泥沙浆抹灰/r/n /r/n,/r/n厚度/r/n23mm/r/n（泰柏板）/r/n（/r/n1:3/r/n水泥）/r/n+/r/n（聚苯乙烯泡沫塑料）/r/n /r/n+/r/n（/r/n1:3/r/n水泥）/r/n（/r/n4/r/n）钢丝网架石膏复合墙板/r/n（石膏板）/r/n+/r/n（硅酸盐水泥）/r/n /r/n+/r/n（岩棉）/r/n+/r/n（硅酸盐水泥）/r/n+/r/n（石膏板）/r/n（/r/n5/r/n）钢网岩棉夹芯复合板（可作/r/n /r/n3/r/n层以下承重墙/r/n,4/r/n层以上/r/n框架结构填充墙）/r/n

/r/n10/r/n9/r/n14/r/n10/r/n10/r/n10/r/n18/r/n11/r/n

/r/n＞/r/n /r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n难燃烧体/r/n难燃烧体/r/n不燃烧体/r/n难燃烧体/r/n难燃烧体/r/n难燃烧体/r/n不燃烧体/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n /r/n耐火极限/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n /r/n面最小尺寸/r/n /r/n（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n彩色钢板复合板墙/r/n彩色钢板岩棉夹芯板/r/n—/r/n彩色钢板岩棉夹芯板/r/n—/r/n彩色镀锌钢板聚氨酯夹芯板（天荣板）/r/n—/r/n16/r/n增强石膏轻质内墙板/r/n增强石膏轻质内墙板（带孔）/r/n6/r/n9/r/n17/r/n空心轻质隔墙板/r/n孔径/r/n38/r/n，表面为/r/n1cm/r/n水泥沙浆/r/n10/r/n62/r/n孔空心板拼装，两侧抹灰/r/n19mm/r/n，总厚/r/n10cm/r/n，/r/n10/r/n沙/r/n:/r/n碳/r/n:/r/n水泥比为/r/n5:1:1/r/n17/r/n混凝土砌块墙体/r/n（/r/n1/r/n）轻集料小型空心砌块/r/n—/r/n330mm/r/n×/r/n14mm/r/n—/r/n330mm/r/n×/r/n19mm/r/n—/r/n（/r/n2/r/n）轻集料（陶粒）混凝土砌块/r/n—/r/n330mm/r/n×/r/n240mm/r/n—/r/n330mm/r/n×/r/n290mm/r/n—/r/n（/r/n3/r/n）轻集料小型空心砌块（实心墙体）：/r/n330mm/r/n×/r/n—/r/n190mm/r/n—/r/n（/r/n4/r/n）普通混凝土承重空心砌块/r/n330mm/r/n×/r/n14mm/r/n330mm/r/n×/r/n19mm/r/n330mm/r/n×/r/n290mm/r/n18/r/n纤维增强硅酸钙板轻质复合隔墙/r/n5~10/r/n19/r/n纤维增强水泥加压平板/r/n5~10/r/n20/r/n（/r/n1/r/n）水泥聚苯乙烯粒子复合墙板（纤维复合）/r/n6/r/n（/r/n2/r/n）水泥纤维加压板墙体/r/n10/r/n21/r/n玻璃纤维增强水泥空心内隔墙板（采用纤维水泥加轻质/r/n6/r/n粗细填充骨料混合浇注，振动滚压成型）/r/n

/r/n不燃烧体/r/n不燃烧体/r/n难燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n序号/r/n三/r/n1/r/n2/r/n3/r/n4/r/n5/r/n

/r/n结构厚度或截/r/n耐火极/r/n燃烧性能/r/n构件名称/r/n面最小尺寸/r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n柱/r/n钢筋混凝土柱/r/n18/r/n×/r/n24/r/n不燃烧体/r/n20/r/n×/r/n20/r/n不燃烧体/r/n24/r/n×/r/n24/r/n不燃烧体/r/n30/r/n×/r/n30/r/n不燃烧体/r/n20/r/n×/r/n40/r/n不燃烧体/r/n20/r/n×/r/n50/r/n不燃烧体/r/n30/r/n×/r/n50/r/n不燃烧体/r/n37/r/n×/r/n37/r/n不燃烧体/r/n普通粘土砖柱/r/n37/r/n×/r/n37/r/n不燃烧体/r/n直径/r/n30/r/n不燃烧体/r/n钢筋混凝土圆柱/r/n直径/r/n45/r/n不燃烧体/r/n无保护层的钢柱/r/n—/r/n不燃烧体/r/n有保护层的钢柱/r/n—/r/n不燃烧体/r/n（/r/n1/r/n）金属网抹/r/nM5/r/n砂浆保护，厚度为（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n（/r/n2/r/n）用加气混凝土作保护层，厚度为（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n（/r/n3/r/n）用/r/n200#/r/n混凝土作保护层，厚度为（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n（/r/n4/r/n）用普通粘土砖作保护层，厚度为（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n（/r/n5/r/n）用陶粒混凝土作保护层，厚度为（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n（/r/n6/r/n）用薄涂型钢结构防火涂料做保护层，厚度为/r/n—/r/n不燃烧体/r/n（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n（/r/n7/r/n）用厚涂型钢结构防火涂料做保护层厚度为/r/n（/r/ncm/r/n）：/r/n—/r/n不燃烧体/r/n—/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n /r/n面最小尺寸/r/n /r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n三/r/n /r/n柱/r/n有保护层的钢管混凝土圆柱（/r/n /r/n60/r/n）/r/n*/r/n用金属网抹/r/n50/r/n#/r/n/r/n砂浆作保护层，其厚度为：/r/n2.5cm/r/n3.5cm/r/n4.5cm/r/nD=20cm/r/n6.0cm/r/n7.0cm/r/n2.0cm/r/n3.0cm/r/n3.5cm/r/nD=60cm/r/n4.5cm/r/n5/r/n5.0cm/r/n1.8cm/r/n2.6cm/r/n3.2cm/r/nD=100cm/r/n4.0cm/r/n4.5cm/r/n1.5cm/r/n2.5cm/r/n3.0cm/r/nD140cm/r/n3.6cm/r/n4.0cm/r/n用厚涂型钢结构防火涂料作保护层，其厚度为：/r/n0.8cm/r/n1.0cm/r/n1.4cm/r/nD=20cm/r/n1.6cm/r/n2.0cm/r/n6/r/n0.7cm/r/n0.9cm/r/n1.2cm/r/nD=60cm/r/n1.4cm/r/n1.6cm/r/n

/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n /r/n面最小尺寸/r/n /r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n三/r/n /r/n柱/r/n有保护层的钢管混凝土圆柱（/r/n /r/n60/r/n）/r/n*/r/n6/r/n7/r/n

/r/n用厚涂型钢结构防火涂料作保护层，其厚度为：/r/n0.6cm/r/n0.8cm/r/n1.0cm/r/n1.2cm/r/n1.4cm/r/n0.5cm/r/n0.7cm/r/n0.9cm/r/n1.0cm/r/n1.2cm/r/n有保护层的钢管混凝土方柱、矩形柱（/r/n60/r/n）/r/n*/r/n用金属网抹/r/n50/r/n#/r/n砂浆作保护层，其厚度为：/r/n4.0cm/r/n5.5cm/r/n7.0cm/r/n8.0cm/r/n9.0cm/r/n3.0cm/r/n4.0cm/r/n5.5cm/r/n6.5cm/r/n7.0cm/r/n2.5cm/r/n3.5cm/r/n4.5cm/r/n5.5cm/r/n6.5cm/r/n2.0cm/r/n3.0cm/r/n4.0cm/r/n4.5cm/r/n5.5cm/r/n

/r/nD=100cm/r/nD 140cm/r/nB=20cm/r/n*/r/nB=60cm/r/nB=100cm/r/nB 140cm/r/n

/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n /r/n面最小尺寸/r/n /r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n三/r/n柱/r/n用厚涂型钢结构防火涂料作保护层，其厚度为：/r/n0.8cm/r/n1.0cm/r/n1.4cm/r/nB=20cm/r/n1.8cm/r/n2.5cm/r/n0.6cm/r/n0.8cm/r/n1.0cm/r/nB=60cm/r/n1.2cm/r/n8/r/n1.5cm/r/n0.5cm/r/n0.6cm/r/n0.8cm/r/nB=100cm/r/n1.0cm/r/n1.2cm/r/n0.4cm/r/n0.5cm/r/n0.6cm/r/nB=140cm/r/n0.8cm/r/n1.0cm/r/n

/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n注：/r/n1/r/n /r/nλ为钢管混凝土构件长细比，对于圆钢管混凝土，/r/n /r/n；对于方、矩形钢管混凝/r/n土，/r/n /r/n；/r/nL/r/n为构件的计算长度。/r/n2 /r/n对于矩形钢管混凝土柱，/r/n /r/nB/r/n为截面短边边长。/r/n钢管混凝土柱的耐火极限为根据福州大学土木建筑工程学院提供的理论计算值，未经逐个试验验证。/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n序号/r/n /r/n构件名称/r/n /r/n面最小尺寸/r/n /r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n四/r/n /r/n梁/r/n简支的钢筋混凝土梁/r/n（/r/n1/r/n）非预应力钢筋，保护层厚度（/r/n /r/ncm/r/n）为：/r/n（/r/n2/r/n）预应力钢筋或高强度钢丝，保护层厚度/r/n /r/n（/r/ncm/r/n）为：/r/n（/r/n3/r/n）有保护层的钢梁，保护层厚度为：/r/n用/r/nLG/r/n防火隔热涂料，保护层厚度/r/n1.5cm/r/n用/r/nLY/r/n防火隔热涂料，保护层厚度/r/n2.0cm/r/n五/r/n楼板和屋顶承重构件/r/n非预应力简支钢筋混凝土圆孔空心楼板，保护层厚度/r/n（/r/ncm/r/n）为：/r/n1/r/n预应力简支钢筋混凝土圆孔空心楼板，保护层厚度/r/n（/r/ncm/r/n）为：/r/n2/r/n四边简支的钢筋混凝土楼板，保护层厚度（/r/n /r/ncm/r/n）为：/r/n3/r/n

/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n序号/r/n /r/n构件名称/r/n五/r/n /r/n楼板和屋顶承重构件/r/n现浇的整体式梁板，保护层厚度（/r/n /r/ncm/r/n）为：/r/n4/r/n钢梁、钢屋架/r/n1/r/n）无保护层的钢梁、屋架/r/n2/r/n）钢丝网抹灰粉刷的钢梁，保护层厚度（/r/ncm/r/n）为：/r/n5/r/n屋面板/r/n（/r/n1/r/n）钢筋加气混凝土屋面板，保护层厚度/r/n /r/n1cm/r/n（/r/n2/r/n）钢筋充气混凝土屋面板，保护层厚度/r/n /r/n1cm/r/n（/r/n3/r/n）钢筋混凝土方孔屋面板，保护层厚度/r/n1cm/r/n4/r/n）预应力钢筋混凝土槽形屋面板，保护层厚度/r/n1cm/r/n5/r/n）预应力钢筋混凝土槽瓦，保护层厚度/r/n1cm/r/n6/r/n）轻型纤维石膏板屋面板/r/n

/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃烧性能/r/n面最小尺寸/r/n /r/n限（/r/nh/r/n）/r/n（/r/ncm/r/n）/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n—/r/n /r/n不燃烧体/r/n续表/r/n /r/n建筑构件的燃烧性能和耐火极限/r/n序号/r/n /r/n构件名称/r/n六/r/n /r/n吊顶/r/n木吊顶搁栅/r/n1/r/n）钢丝网抹灰（厚/r/n1.5cm/r/n）/r/n2/r/n）板条抹灰（厚/r/n1.5cm/r/n）/r/n3/r/n）钢丝网抹灰（/r/n1:4/r/n水泥石棉浆，厚/r/n2cm/r/n）/r/n4/r/n）板条抹灰（/r/n1:4/r/n水泥石棉灰浆，厚/r/n2cm/r/n）/r/n5/r/n）钉氧化镁锯末复合板（厚/r/n1.3cm/r/n）/r/n6/r/n）钉石膏装饰板（厚/r/n1cm/r/n）/r/n1/r/n7/r/n）钉平面石膏板（厚/r/n1.2cm/r/n）/r/n8/r/n）钉纸面石膏板（厚/r/n0.95cm/r/n）/r/n9/r/n）钉双层石膏板（各厚/r/n0.8cm/r/n）/r/n10/r/n）钉珍珠岩复合石膏板（穿孔板和吸音板各厚/r/n1.5cm/r/n）/r/n11/r/n）钉矿棉吸音板/r/n12/r/n）钉硬质木屑板（厚/r/n1cm/r/n）钢吊顶搁栅/r/n1/r/n）钢丝网（板）抹灰（厚/r/n1.5cm/r/n）/r/n2/r/n）钉石棉板（厚/r/n1cm/r/n）/r/n（/r/n3/r/n）钉双层石膏板（厚/r/n1cm/r/n）/r/n4/r/n）挂石棉型硅酸钙板（厚/r/n1cm/r/n）/r/n5/r/n）挂薄钢板（内填陶瓷棉复合板），其构造厚度为：/r/n+/r/n（陶瓷棉）/r/n+/r/n七/r/n /r/n防火门/r/n全木质防火门（优质木材）：乙级/r/n1/r/n甲级/r/n经阻燃处理的全木质防火门：丙级/r/n2/r/n /r/n乙级/r/n甲级/r/n木质单扇（双扇）带玻璃带上亮防火门：乙级/r/n3/r/n甲级/r/n木板或胶合板内填充不燃烧材料的防火门：/r/n（/r/n1/r/n）门扇内填充岩棉/r/n（/r/n2/r/n）门扇内填充硅酸铝纤维：丙级乙级甲级/r/n

/r/n结构厚度或截/r/n /r/n耐火极/r/n /r/n燃