首先，在鋼結構樓層(ceng)板(ban)(ban)中(zhong)要達(da)到耐(nai)火(huo)1.5小時，總(zong)的(de)來說(shuo)可以(yi)選擇(ze)開(kai)口(kou)板(ban)(ban)、縮口(kou)板(ban)(ban)、閉(bi)口(kou)板(ban)(ban)三大(da)類。規范上混凝土(tu)要高于(yu)(yu)開(kai)口(kou)板(ban)(ban)肋頂之上80mm，并且(qie)板(ban)(ban)底(di)需(xu)配置板(ban)(ban)底(di)受(shou)力筋。還有(you)一種就(jiu)是再開(kai)口(kou)板(ban)(ban)底(di)部刷防火(huo)涂料(liao)，涂料(liao)厚度(du)(du)大(da)于(yu)(yu)等于(yu)(yu)15,這樣的(de)話，只要達(da)到構造(zao)要求高于(yu)(yu)肋頂5公分就(jiu)可以(yi)了。而縮口(kou)板(ban)(ban)和閉(bi)口(kou)板(ban)(ban)，只需(xu)要總(zong)的(de)樓板(ban)(ban)厚度(du)(du)大(da)于(yu)(yu)等于(yu)(yu)110即可，但是縮口(kou)板(ban)(ban)雖(sui)然在防火(huo)方面比開(kai)口(kou)板(ban)(ban)要好(hao)。但是底(di)部還是需(xu)要加板(ban)(ban)底(di)受(shou)力筋，而閉(bi)口(kou)板(ban)(ban)則不需(xu)要。

樓(lou)承板(ban)(ban)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)首(shou)要(yao)起到(dao)防腐(fu)的(de)效(xiao)果(guo)，按標準組(zu)(zu)合(he)樓(lou)板(ban)(ban)與非(fei)組(zu)(zu)合(he)樓(lou)板(ban)(ban)壓型鋼板(ban)(ban)應選用(yong)(yong)熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)，不(bu)(bu)(bu)該(gai)選用(yong)(yong)電(dian)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼板(ban)(ban)，其雙面鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層總含(han)(han)量要(yao)滿足在使(shi)(shi)用(yong)(yong)期(qi)間不(bu)(bu)(bu)致銹(xiu)損的(de)要(yao)求。當作為(wei)非(fei)組(zu)(zu)合(he)樓(lou)承板(ban)(ban)時，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量可選用(yong)(yong)較低值;當為(wei)組(zu)(zu)合(he)樓(lou)承板(ban)(ban)時，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量不(bu)(bu)(bu)該(gai)小于150g/m2。當為(wei)組(zu)(zu)合(he)樓(lou)板(ban)(ban)且使(shi)(shi)用(yong)(yong)環境條件較為(wei)惡(e)劣時，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量應選用(yong)(yong)上限值或更(geng)高(gao)(gao)值。更(geng)高(gao)(gao)的(de)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)要(yao)求，如(ru)雙面鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量為(wei)300g/m2、350g/m2或鍍(du)鋁鋅(xin)(xin)(xin)(xin)(xin)(5%鋁)275g/m2、300g/m2等，較高(gao)(gao)的(de)鍍(du)層量使(shi)(shi)組(zu)(zu)合(he)樓(lou)板(ban)(ban)有(you)更(geng)長耐久性，同等量的(de)鍍(du)鋁鋅(xin)(xin)(xin)(xin)(xin)的(de)防銹(xiu)蝕才能大約兩倍于一般熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量也(ye)不(bu)(bu)(bu)是越厚越好，當鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量較厚時，抗剪連(lian)接件栓釘的(de)焊接質量就(jiu)很難保證，焊接時，宜選用(yong)(yong)局(ju)部除鋅(xin)(xin)(xin)(xin)(xin)處理措施。

由(you)于(yu)我國鋅(xin)(xin)(xin)(xin)資源比較豐富，鍍鋅(xin)(xin)(xin)(xin)又是一種(zhong)價(jia)廉、能防銹，又能裝飾的高(gao)性(xing)價(jia)比鍍種(zhong)，因而(er)在汽(qi)車(che)、機(ji)械、電(dian)(dian)子、船(chuan)舶、儀表(biao)、輕工(gong)(gong)等(deng)工(gong)(gong)業部門得(de)到廣泛(fan)的應用。如機(ji)械零件(jian)、低壓電(dian)(dian)器、高(gao)壓開關(guan)、緊固連接件(jian)、鋼(gang)鐵結(jie)構件(jian)、建(jian)筑五金(jin)、農業機(ji)械、輕工(gong)(gong)產品等(deng)都離不(bu)開鍍鋅(xin)(xin)(xin)(xin)鈍化制(zhi)品。鍍鋅(xin)(xin)(xin)(xin)板(ban)卷因此(ci)可分為(wei)(wei)熱軋鍍鋅(xin)(xin)(xin)(xin)板(ban)卷和冷軋熱鍍鋅(xin)(xin)(xin)(xin)板(ban)卷，它們主(zhu)要(yao)(yao)用于(yu)建(jian)筑、家電(dian)(dian)、汽(qi)車(che)、容(rong)器、交(jiao)通及家業等(deng)領(ling)域。特別是鋼(gang)結(jie)構建(jian)筑、汽(qi)車(che)制(zhi)造(zao)(zao)、鋼(gang)板(ban)倉制(zhi)造(zao)(zao)等(deng)行業。 重慶鍍鋅(xin)(xin)(xin)(xin)卷特點主(zhu)要(yao)(yao)為(wei)(wei)：耐腐(fu)蝕強、表(biao)面質量好、得(de)利于(yu)深加工(gong)(gong)、經濟(ji)實(shi)用等(deng)。

鍍鋁鋅板批發樓承板適應主體鋼結構快速施工的要求，能夠在短時間內提供堅定的作業平臺，并可采用多個樓層鋪設壓型鋼板，分層澆筑混凝土板的流水施工。萬源鍍鋁鋅板在(zai)使(shi)用階(jie)段(duan)樓承(cheng)板(ban)(ban)(ban)作為(wei)混(hun)凝(ning)土(tu)樓板(ban)(ban)(ban)的受(shou)拉鋼(gang)筋，也提高(gao)了樓板(ban)(ban)(ban)的剛度(du)(du)(du)，節省了鋼(gang)筋和混(hun)凝(ning)土(tu)的用量(liang)。樓承(cheng)板(ban)(ban)(ban)上面可(ke)以鋪設(she)保溫，隔音(yin)，隔熱，隔振等(deng)材料。樓面性能充分發揮鋼(gang)的良好的抗(kang)拉強度(du)(du)(du)和延性及混(hun)凝(ning)土(tu)優(you)良的抗(kang)壓(ya)強度(du)(du)(du)和較大(da)的剛度(du)(du)(du)。壓(ya)型板(ban)(ban)(ban)表面壓(ya)紋使(shi)樓承(cheng)板(ban)(ban)(ban)與混(hun)凝(ning)土(tu)之間產生大(da)的結(jie)合力(li)，使(shi)二者形成整體，配(pei)以加勁肋，使(shi)樓承(cheng)板(ban)(ban)(ban)系(xi)統具有高(gao)強承(cheng)載力(li)。在(zai)懸臂條(tiao)件(jian)下(xia)，樓承(cheng)板(ban)(ban)(ban)僅作為(wei)性模板(ban)(ban)(ban)。懸挑(tiao)的長度(du)(du)(du)可(ke)根據樓承(cheng)板(ban)(ban)(ban)的截面特(te)性來定。為(wei)了防止懸挑(tiao)板(ban)(ban)(ban)的開裂，需在(zai)支座處依(yi)結(jie)構工程師的設(she)計配(pei)上負筋。