我(wo)國建筑(zhu)業中，噪聲污(wu)染問題久為人(ren)們所詬病(bing)。輕(qing)型(xing)樓(lou)承(cheng)(cheng)板(ban)的應用(yong)(yong)使(shi)得土建建筑(zhu)物局面(mian)被打破，集環境破壞(huai)及污(wu)染少、材料回(hui)收(shou)和利用(yong)(yong)率(lv)高、符合可持(chi)續(xu)發展要求等眾多(duo)優(you)點于一身的樓(lou)承(cheng)(cheng)板(ban)建筑(zhu)應運(yun)而生(sheng)，逐步被人(ren)們所接受。輕(qing)型(xing)樓(lou)承(cheng)(cheng)板(ban)是(shi)近十年來(lai)發展較(jiao)快(kuai)(kuai)的領域(yu)，在采(cai)用(yong)(yong)輕(qing)型(xing)樓(lou)承(cheng)(cheng)板(ban)占非(fei)住宅建筑(zhu)投(tou)資的50%以上。這(zhe)種結構工(gong)業化、商(shang)品(pin)化程度高，施工(gong)快(kuai)(kuai)，綜合效益高，市(shi)場需求量很大，已引(yin)起結構設計人(ren)員認識。樓(lou)承(cheng)(cheng)板(ban)的研究開發已在各地試點，是(shi)輕(qing)鋼發展的一個重要方向，目(mu)前已經有多(duo)種的低層(ceng)、多(duo)層(ceng)和高層(ceng)的設計方案(an)和實例。

鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)(ban)按用(yong)(yong)(yong)(yong)途又可分為一般用(yong)(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)(yong)、建筑(zhu)(zhu)外側板(ban)(ban)用(yong)(yong)(yong)(yong)、結構用(yong)(yong)(yong)(yong)、瓦(wa)壟板(ban)(ban)用(yong)(yong)(yong)(yong)、拉伸(shen)用(yong)(yong)(yong)(yong)和深沖用(yong)(yong)(yong)(yong)等鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)(ban)。熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)主要應用(yong)(yong)(yong)(yong)于建筑(zhu)(zhu)外用(yong)(yong)(yong)(yong)，建筑(zhu)(zhu)內用(yong)(yong)(yong)(yong)，民(min)用(yong)(yong)(yong)(yong)，門(men)窗，家具，機械(xie)，電(dian)(dian)子及(ji)家用(yong)(yong)(yong)(yong)電(dian)(dian)器等領域。也有(you)機箱(xiang)用(yong)(yong)(yong)(yong)這個(ge)，不(bu)過(guo)熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)不(bu)放輻射的(de)。空(kong)調，冰箱(xiang)，微(wei)波爐(lu)及(ji)其類似家電(dian)(dian)背(bei)面的(de)那個(ge)板(ban)(ban)就(jiu)是(shi)熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)層通過(guo)鈍化處理，可減少潮溫貯運(yun)條件下產生(sheng)折銹(xiu)蝕(白(bai)銹(xiu)) 。但這種化學處理的(de)防腐蝕性能是(shi)有(you)限的(de)，而且，妨礙大多數(shu)涂料的(de)附著性。這種處理一般不(bu)用(yong)(yong)(yong)(yong)在(zai)鋅(xin)(xin)(xin)(xin)鐵(tie)合金鍍(du)(du)(du)層，除(chu)光整表(biao)面外，作(zuo)為常規，生(sheng)產廠對其他類型的(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)層均進行鈍化處理。

首先，在鋼結構樓層板中要達到耐火1.5小時，總的來說可以選擇開口板、縮口板、閉口板三大類。長春鍍鋅鋼規范上混凝土要高于開口板肋頂之上80mm，并且板底需配置板底受力筋。還有一種就是再開口板底部刷防火涂料，涂料厚度大于等于15,這樣的話，只要達到構造要求高于肋頂5公分就可以了。鍍鋅鋼價格而縮(suo)口(kou)(kou)板(ban)和閉口(kou)(kou)板(ban)，只需(xu)要總的(de)樓板(ban)厚度大于等于110即可，但(dan)是(shi)縮(suo)口(kou)(kou)板(ban)雖然在(zai)防火方面(mian)比(bi)開口(kou)(kou)板(ban)要好。但(dan)是(shi)底部還(huan)是(shi)需(xu)要加板(ban)底受(shou)力(li)筋，而閉口(kou)(kou)板(ban)則(ze)不需(xu)要。

樓(lou)(lou)承板(ban)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)首要(yao)起(qi)到防腐的(de)效果，按標準(zhun)組(zu)(zu)合(he)(he)樓(lou)(lou)板(ban)與非組(zu)(zu)合(he)(he)樓(lou)(lou)板(ban)壓(ya)型鋼板(ban)應選(xuan)(xuan)用(yong)熱鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)，不該選(xuan)(xuan)用(yong)電鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)，其雙(shuang)(shuang)面鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)總含(han)(han)量(liang)要(yao)滿足在使用(yong)期間不致銹損的(de)要(yao)求。當(dang)作為(wei)非組(zu)(zu)合(he)(he)樓(lou)(lou)承板(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)含(han)(han)量(liang)可選(xuan)(xuan)用(yong)較低(di)值;當(dang)為(wei)組(zu)(zu)合(he)(he)樓(lou)(lou)承板(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)含(han)(han)量(liang)不該小(xiao)于(yu)150g/m2。當(dang)為(wei)組(zu)(zu)合(he)(he)樓(lou)(lou)板(ban)且使用(yong)環境條件(jian)較為(wei)惡(e)劣時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)含(han)(han)量(liang)應選(xuan)(xuan)用(yong)上限值或更高值。更高的(de)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)要(yao)求，如雙(shuang)(shuang)面鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)為(wei)300g/m2、350g/m2或鍍(du)(du)(du)(du)(du)鋁(lv)鋅(xin)(xin)(xin)(xin)(5%鋁(lv))275g/m2、300g/m2等，較高的(de)鍍(du)(du)(du)(du)(du)層(ceng)量(liang)使組(zu)(zu)合(he)(he)樓(lou)(lou)板(ban)有更長耐久性(xing)，同等量(liang)的(de)鍍(du)(du)(du)(du)(du)鋁(lv)鋅(xin)(xin)(xin)(xin)的(de)防銹蝕才能大約兩倍于(yu)一般(ban)熱鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)。鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)也不是越厚(hou)越好(hao)，當(dang)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量(liang)較厚(hou)時(shi)，抗剪連接件(jian)栓(shuan)釘的(de)焊(han)接質量(liang)就很難保證(zheng)，焊(han)接時(shi)，宜選(xuan)(xuan)用(yong)局部除鋅(xin)(xin)(xin)(xin)處理措施。