鍍鋅(xin)(xin)(xin)鋼板(ban)按用(yong)(yong)途又(you)可分為一般用(yong)(yong)、屋(wu)頂用(yong)(yong)、建筑(zhu)外(wai)(wai)側板(ban)用(yong)(yong)、結構(gou)用(yong)(yong)、瓦(wa)壟(long)板(ban)用(yong)(yong)、拉伸用(yong)(yong)和深沖(chong)用(yong)(yong)等鍍鋅(xin)(xin)(xin)鋼板(ban)。熱(re)鍍鋅(xin)(xin)(xin)板(ban)主要應(ying)用(yong)(yong)于建筑(zhu)外(wai)(wai)用(yong)(yong)，建筑(zhu)內用(yong)(yong)，民用(yong)(yong)，門窗，家具，機(ji)(ji)械，電子及家用(yong)(yong)電器等領域(yu)。也有機(ji)(ji)箱(xiang)用(yong)(yong)這(zhe)個，不(bu)過熱(re)鍍鋅(xin)(xin)(xin)板(ban)不(bu)放輻射(she)的(de)。空調，冰箱(xiang)，微(wei)波爐(lu)及其類(lei)似家電背(bei)面的(de)那個板(ban)就是熱(re)鍍鋅(xin)(xin)(xin)板(ban)。鍍鋅(xin)(xin)(xin)層通(tong)過鈍化(hua)處理，可減少(shao)潮溫貯運條件下產生(sheng)折銹蝕(白銹) 。但這(zhe)種化(hua)學處理的(de)防(fang)腐(fu)蝕性能是有限的(de)，而且，妨礙大多數涂(tu)料的(de)附著性。這(zhe)種處理一般不(bu)用(yong)(yong)在鋅(xin)(xin)(xin)鐵(tie)合金鍍層，除光(guang)整表面外(wai)(wai)，作為常(chang)規，生(sheng)產廠(chang)對其他類(lei)型的(de)鍍鋅(xin)(xin)(xin)層均(jun)進行鈍化(hua)處理。

彩涂卷廠家熱鍍鋅生產發展一直處于滯后狀態。20世紀50年代到60年代陸續建成了13條單張鋼板熔劑法熱鍍鋅機組，能力為10萬t/a，但因產量低、成本高、質量差、污染環境、經濟效益差等缺陷已先后停、轉產。從20世紀70年代末，我國才開始建造大型寬帶熱鍍鋅機組。永川彩涂卷熱鍍(du)鋅帶(dai)鋼在我國(guo)市場一直是緊缺品種(zhong)。從20世紀90年代中期以來，每年都要從國(guo)外進口80-100萬(wan)t左右。隨著(zhu)國(guo)內(nei)經(jing)濟的(de)發(fa)展，尤其(qi)是汽車、家電及建筑業的(de)發(fa)展，對鍍(du)鋅帶(dai)鋼的(de)需求量也(ye)大大增加。

鋼(gang)(gang)筋(jin)桁(heng)架(jia)樓(lou)(lou)(lou)承板(ban)(ban)完成了機(ji)械化出(chu)產(chan)，有利于鋼(gang)(gang)筋(jin)擺(bai)放距離均勻、混(hun)凝土(tu)保(bao)護層厚度(du)共同，提(ti)高了樓(lou)(lou)(lou)板(ban)(ban)的(de)施(shi)工(gong)(gong)質量。裝配式鋼(gang)(gang)筋(jin)桁(heng)架(jia)樓(lou)(lou)(lou)承板(ban)(ban)可(ke)明(ming)顯削減現場鋼(gang)(gang)筋(jin)綁扎工(gong)(gong)程(cheng)量，加(jia)速施(shi)工(gong)(gong)進度(du)，添加(jia)施(shi)工(gong)(gong)確保(bao)，完成文明(ming)施(shi)工(gong)(gong)。裝配式模板(ban)(ban)和連接(jie)件拆(chai)裝便利，可(ke)屢次重復使用，節省鋼(gang)(gang)材，契合國(guo)家節能環保(bao)的(de)要(yao)求。鋼(gang)(gang)構自主(zhu)研制的(de)產(chan)品(pin)(pin)配套自動化出(chu)產(chan)設備，大大提(ti)高了勞動出(chu)產(chan)率，有用降低了產(chan)品(pin)(pin)成本，并(bing)編(bian)制了產(chan)品(pin)(pin)出(chu)產(chan)企業規范、規劃手(shou)冊(ce)和節點構造圖集以(yi)及施(shi)工(gong)(gong)手(shou)冊(ce)。該產(chan)品(pin)(pin)經過浙江大學土(tu)木工(gong)(gong)程(cheng)測(ce)試中心檢測(ce)，并(bing)經過多項工(gong)(gong)程(cheng)使用，各項功能可(ke)以(yi)滿意現澆鋼(gang)(gang)筋(jin)混(hun)凝土(tu)樓(lou)(lou)(lou)板(ban)(ban)承載力(li)和變形的(de)要(yao)求。

我國建筑業中，噪(zao)聲污染問題久為人們所詬病。輕(qing)(qing)型(xing)(xing)樓(lou)承(cheng)板的(de)(de)應(ying)用使得(de)土建建筑物(wu)局(ju)面被(bei)打破，集環境破壞(huai)及污染少(shao)、材料回收和利用率高、符合可持續發(fa)(fa)展要求等眾多(duo)優點于一(yi)身的(de)(de)樓(lou)承(cheng)板建筑應(ying)運而生，逐步被(bei)人們所接(jie)受。輕(qing)(qing)型(xing)(xing)樓(lou)承(cheng)板是近十年來發(fa)(fa)展較快的(de)(de)領域，在采用輕(qing)(qing)型(xing)(xing)樓(lou)承(cheng)板占非住宅(zhai)建筑投資的(de)(de)50%以上。這(zhe)種結構工業化、商品化程度高，施工快，綜合效益高，市(shi)場需求量很大，已引起(qi)結構設計人員(yuan)認識。樓(lou)承(cheng)板的(de)(de)研究(jiu)開發(fa)(fa)已在各地試點，是輕(qing)(qing)鋼發(fa)(fa)展的(de)(de)一(yi)個重要方向(xiang)，目前已經(jing)有多(duo)種的(de)(de)低層(ceng)(ceng)、多(duo)層(ceng)(ceng)和高層(ceng)(ceng)的(de)(de)設計方案和實例。

首先，在鋼結構(gou)(gou)樓(lou)層板(ban)(ban)(ban)(ban)(ban)(ban)中(zhong)要(yao)達(da)到耐(nai)火1.5小時，總的來說可(ke)以選(xuan)擇開(kai)(kai)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)、縮(suo)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)、閉口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)三大(da)(da)類。規范上混凝土要(yao)高于(yu)(yu)開(kai)(kai)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)肋頂之上80mm，并且板(ban)(ban)(ban)(ban)(ban)(ban)底(di)需(xu)配置板(ban)(ban)(ban)(ban)(ban)(ban)底(di)受力筋(jin)。還(huan)(huan)有一種就(jiu)是再(zai)開(kai)(kai)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)底(di)部刷防火涂(tu)料，涂(tu)料厚度大(da)(da)于(yu)(yu)等于(yu)(yu)15,這(zhe)樣的話，只要(yao)達(da)到構(gou)(gou)造要(yao)求(qiu)高于(yu)(yu)肋頂5公分就(jiu)可(ke)以了(le)。而(er)縮(suo)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)和閉口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)，只需(xu)要(yao)總的樓(lou)板(ban)(ban)(ban)(ban)(ban)(ban)厚度大(da)(da)于(yu)(yu)等于(yu)(yu)110即可(ke)，但是縮(suo)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)雖(sui)然在防火方面(mian)比開(kai)(kai)口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)要(yao)好(hao)。但是底(di)部還(huan)(huan)是需(xu)要(yao)加板(ban)(ban)(ban)(ban)(ban)(ban)底(di)受力筋(jin)，而(er)閉口(kou)(kou)板(ban)(ban)(ban)(ban)(ban)(ban)則不需(xu)要(yao)。

樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)適應主體(ti)鋼(gang)(gang)結(jie)構(gou)快速施工(gong)(gong)的(de)(de)要求，能(neng)夠(gou)在(zai)短時間內提供堅定的(de)(de)作業平臺，并(bing)可(ke)(ke)采用(yong)多個樓(lou)(lou)(lou)層鋪設壓(ya)型鋼(gang)(gang)板(ban)(ban)(ban)(ban)，分層澆筑混(hun)凝(ning)土板(ban)(ban)(ban)(ban)的(de)(de)流水施工(gong)(gong)。在(zai)使用(yong)階段樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)作為(wei)混(hun)凝(ning)土樓(lou)(lou)(lou)板(ban)(ban)(ban)(ban)的(de)(de)受拉(la)鋼(gang)(gang)筋(jin)(jin)，也提高了樓(lou)(lou)(lou)板(ban)(ban)(ban)(ban)的(de)(de)剛(gang)度(du)，節省了鋼(gang)(gang)筋(jin)(jin)和(he)(he)混(hun)凝(ning)土的(de)(de)用(yong)量。樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)上面(mian)(mian)可(ke)(ke)以鋪設保(bao)溫，隔音，隔熱，隔振等材料。樓(lou)(lou)(lou)面(mian)(mian)性能(neng)充分發揮鋼(gang)(gang)的(de)(de)良(liang)(liang)好的(de)(de)抗(kang)拉(la)強度(du)和(he)(he)延性及混(hun)凝(ning)土優(you)良(liang)(liang)的(de)(de)抗(kang)壓(ya)強度(du)和(he)(he)較大(da)的(de)(de)剛(gang)度(du)。壓(ya)型板(ban)(ban)(ban)(ban)表面(mian)(mian)壓(ya)紋使樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)與混(hun)凝(ning)土之(zhi)間產生大(da)的(de)(de)結(jie)合力，使二者形成整體(ti)，配以加勁肋，使樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)系統具有高強承(cheng)載力。在(zai)懸(xuan)臂(bei)條(tiao)件下，樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)僅作為(wei)性模板(ban)(ban)(ban)(ban)。懸(xuan)挑的(de)(de)長度(du)可(ke)(ke)根據(ju)樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)(ban)的(de)(de)截面(mian)(mian)特(te)性來定。為(wei)了防止懸(xuan)挑板(ban)(ban)(ban)(ban)的(de)(de)開裂(lie)，需在(zai)支(zhi)座(zuo)處依結(jie)構(gou)工(gong)(gong)程師的(de)(de)設計配上負筋(jin)(jin)。