2.防爆板(ban)的安裝與固(gu)定(ding)
(1)根據設計圖紙(zhi)和實際(ji)施工情況,對板(ban)材進行切割和開孔,必要時(shi)現(xian)場(chang)作倒(dao)角(jiao),防爆(bao)板(ban)的兩(liang)長邊(bian)都已作好倒(dao)角(jiao)處理,但當墻體高于2400mm時(shi),防爆(bao)板(ban)水平接縫的短邊(bian)必須現(xian)場(chang)倒(dao)角(jiao),以便更好地處理接縫。
(2)在防爆板面上彈線(xian)并標出(chu)自攻(gong)(gong)螺(luo)釘固定點,同時預鉆凹孔(孔徑比自攻(gong)(gong)螺(luo)釘頭大1mm~2mm)。自攻(gong)(gong)螺(luo)釘間距(ju)150-300,(背靠背邊緣龍骨需要雙排自攻(gong)(gong)螺(luo)絲(si)固定)
(3)鋪(pu)板時,一(yi)般(ban)采用(yong)縱向鋪(pu)設,即板的長邊固定于(yu)豎龍骨(gu)上;板材對接時要(yao)自(zi)然靠近,不(bu)能強壓(ya)就(jiu)位;墻體兩面的接縫應(ying)相互錯開(kai),不(bu)能落在同(tong)一(yi)根龍骨(gu)上。
(4)固(gu)定(ding)(ding)(ding)防(fang)爆(bao)板時,板與龍(long)骨(gu)應(ying)(ying)作預鉆孔,防(fang)爆(bao)板用自(zi)攻螺釘固(gu)定(ding)(ding)(ding),固(gu)定(ding)(ding)(ding)時應(ying)(ying)從板的中間部向(xiang)周邊固(gu)定(ding)(ding)(ding),所有螺釘頭均(jun)應(ying)(ying)沉入板里貫(guan)穿龍(long)骨(gu)。