樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)適應主體(ti)鋼(gang)結構快(kuai)速施(shi)(shi)工(gong)的(de)(de)(de)要(yao)求，能夠在(zai)短(duan)時間內提供堅定的(de)(de)(de)作業平臺，并可采用多個樓(lou)(lou)層鋪設壓(ya)(ya)型鋼(gang)板(ban)(ban)，分層澆筑混(hun)(hun)凝(ning)土(tu)(tu)板(ban)(ban)的(de)(de)(de)流水施(shi)(shi)工(gong)。在(zai)使(shi)用階段樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)作為混(hun)(hun)凝(ning)土(tu)(tu)樓(lou)(lou)板(ban)(ban)的(de)(de)(de)受拉鋼(gang)筋，也提高了(le)樓(lou)(lou)板(ban)(ban)的(de)(de)(de)剛(gang)度(du)，節省(sheng)了(le)鋼(gang)筋和混(hun)(hun)凝(ning)土(tu)(tu)的(de)(de)(de)用量。樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)上面可以鋪設保溫，隔(ge)音，隔(ge)熱(re)，隔(ge)振等材料(liao)。樓(lou)(lou)面性(xing)(xing)(xing)能充分發揮鋼(gang)的(de)(de)(de)良好(hao)的(de)(de)(de)抗拉強度(du)和延性(xing)(xing)(xing)及混(hun)(hun)凝(ning)土(tu)(tu)優良的(de)(de)(de)抗壓(ya)(ya)強度(du)和較大的(de)(de)(de)剛(gang)度(du)。壓(ya)(ya)型板(ban)(ban)表面壓(ya)(ya)紋(wen)使(shi)樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)與混(hun)(hun)凝(ning)土(tu)(tu)之間產生大的(de)(de)(de)結合(he)力(li)(li)，使(shi)二者形(xing)成(cheng)整體(ti)，配(pei)(pei)以加勁肋，使(shi)樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)系(xi)統具有高強承(cheng)(cheng)載力(li)(li)。在(zai)懸臂條件下，樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)僅作為性(xing)(xing)(xing)模(mo)板(ban)(ban)。懸挑(tiao)的(de)(de)(de)長(chang)度(du)可根據樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)的(de)(de)(de)截(jie)面特性(xing)(xing)(xing)來定。為了(le)防止懸挑(tiao)板(ban)(ban)的(de)(de)(de)開裂，需在(zai)支座處依結構工(gong)程(cheng)師(shi)的(de)(de)(de)設計配(pei)(pei)上負(fu)筋。

樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)鍍(du)鋅(xin)(xin)(xin)首(shou)要起到防(fang)腐的(de)效果，按標(biao)準組(zu)合樓(lou)板(ban)(ban)(ban)(ban)與(yu)非組(zu)合樓(lou)板(ban)(ban)(ban)(ban)壓型鋼板(ban)(ban)(ban)(ban)應選(xuan)(xuan)用(yong)(yong)熱鍍(du)鋅(xin)(xin)(xin)，不該選(xuan)(xuan)用(yong)(yong)電鍍(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)(ban)(ban)，其雙(shuang)面(mian)鍍(du)鋅(xin)(xin)(xin)層總含(han)量(liang)(liang)要滿(man)足在使(shi)用(yong)(yong)期間不致銹損的(de)要求。當(dang)(dang)作(zuo)為(wei)非組(zu)合樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)時(shi)，鍍(du)鋅(xin)(xin)(xin)層含(han)量(liang)(liang)可(ke)選(xuan)(xuan)用(yong)(yong)較低值(zhi)(zhi);當(dang)(dang)為(wei)組(zu)合樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)時(shi)，鍍(du)鋅(xin)(xin)(xin)層含(han)量(liang)(liang)不該小于150g/m2。當(dang)(dang)為(wei)組(zu)合樓(lou)板(ban)(ban)(ban)(ban)且使(shi)用(yong)(yong)環境條件較為(wei)惡劣(lie)時(shi)，鍍(du)鋅(xin)(xin)(xin)層含(han)量(liang)(liang)應選(xuan)(xuan)用(yong)(yong)上限值(zhi)(zhi)或(huo)更(geng)高(gao)值(zhi)(zhi)。更(geng)高(gao)的(de)鍍(du)鋅(xin)(xin)(xin)要求，如雙(shuang)面(mian)鍍(du)鋅(xin)(xin)(xin)量(liang)(liang)為(wei)300g/m2、350g/m2或(huo)鍍(du)鋁鋅(xin)(xin)(xin)(5%鋁)275g/m2、300g/m2等，較高(gao)的(de)鍍(du)層量(liang)(liang)使(shi)組(zu)合樓(lou)板(ban)(ban)(ban)(ban)有更(geng)長(chang)耐久(jiu)性，同等量(liang)(liang)的(de)鍍(du)鋁鋅(xin)(xin)(xin)的(de)防(fang)銹蝕才能大(da)約(yue)兩倍(bei)于一般熱鍍(du)鋅(xin)(xin)(xin)。鍍(du)鋅(xin)(xin)(xin)量(liang)(liang)也不是越厚越好，當(dang)(dang)鍍(du)鋅(xin)(xin)(xin)量(liang)(liang)較厚時(shi)，抗剪連接(jie)件栓(shuan)釘的(de)焊接(jie)質量(liang)(liang)就(jiu)很(hen)難(nan)保證，焊接(jie)時(shi)，宜選(xuan)(xuan)用(yong)(yong)局部除(chu)鋅(xin)(xin)(xin)處理措施。

我國建筑業中，噪聲污染問題久為人們所詬病。深圳白鐵輕型樓承板的應用使得土建建筑物局面被打破，集環境破壞及污染少、材料回收和利用率高、符合可持續發展要求等眾多優點于一身的樓承板建筑應運而生，逐步被人們所接受。白鐵價格輕型樓(lou)承板(ban)(ban)是(shi)近十年來發(fa)展較快的(de)領域，在采用輕型樓(lou)承板(ban)(ban)占非住宅(zhai)建筑投(tou)資的(de)50%以(yi)上(shang)。這種結(jie)構(gou)工(gong)業化(hua)、商(shang)品化(hua)程度(du)高，施工(gong)快，綜(zong)合效益高，市(shi)場需求量很大，已引起結(jie)構(gou)設(she)計人員認識。樓(lou)承板(ban)(ban)的(de)研究開發(fa)已在各地試點，是(shi)輕鋼發(fa)展的(de)一個重要(yao)方向，目前已經有多種的(de)低層(ceng)(ceng)、多層(ceng)(ceng)和高層(ceng)(ceng)的(de)設(she)計方案和實(shi)例。

重慶鍍鋅卷主要(yao)有(you)(you)：脫(tuo)落(luo)、劃(hua)傷、鈍化(hua)斑(ban)、鋅粒(li)、厚邊(bian)、氣刀條痕、氣刀刮痕、露鋼、夾雜(za)、機(ji)械(xie)損傷、鋼基性能(neng)不良(liang)、浪(lang)邊(bian)、瓢曲、尺寸不合、壓印(yin)、鋅層厚度不合、輥印(yin)等(deng)(deng)。鋅層脫(tuo)落(luo)的(de)(de)主要(yao)原因有(you)(you)：表(biao)面(mian)氧化(hua)、有(you)(you)硅化(hua)合物、冷(leng)扎(zha)乳化(hua)液太臟、NOF段氧化(hua)氣氛及保護氣體露點(dian)太高(gao)、空燃比(bi)不合理(li)、氫氣流量(liang)偏(pian)(pian)(pian)低(di)、爐(lu)子(zi)有(you)(you)氧滲入(ru)，帶(dai)鋼入(ru)鍋(guo)溫(wen)度偏(pian)(pian)(pian)低(di)，RWP段爐(lu)壓偏(pian)(pian)(pian)低(di)及爐(lu)門吸風、NOF段爐(lu)溫(wen)偏(pian)(pian)(pian)低(di)，油脂蒸發不盡、鋅鍋(guo)鋁(lv)含量(liang)偏(pian)(pian)(pian)低(di)、機(ji)組(zu)速度太快、還原不充分、鋅液中停留(liu)時間(jian)太短、鍍層偏(pian)(pian)(pian)厚。白(bai)銹和黑斑(ban)產(chan)生的(de)(de)原因有(you)(you)：黑斑(ban)是白(bai)銹進一步氧化(hua)形成的(de)(de)鍍鋅板的(de)(de)特(te)點(dian)與用途。鍍鋅卷板是以熱軋(ya)鋼帶(dai)或冷(leng)軋(ya)鋼帶(dai)為基板，經過連續(xu)熱浸鍍鋅工藝而生產(chan)出(chu)來的(de)(de)， 產(chan)品(pin)具有(you)(you)耐腐蝕強、 表(biao)面(mian)質(zhi)量(liang)好、有(you)(you)利于深加工、經濟實(shi)用等(deng)(deng)特(te)點(dian)。

鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板按用(yong)(yong)途又可分為(wei)(wei)一(yi)般(ban)用(yong)(yong)、屋頂用(yong)(yong)、建筑(zhu)外側板用(yong)(yong)、結(jie)(jie)構(gou)用(yong)(yong)、瓦壟板用(yong)(yong)、拉伸用(yong)(yong)和深沖(chong)用(yong)(yong)等鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板。對于一(yi)般(ban)防保護(hu)用(yong)(yong)鍍(du)(du)層，可以采(cai)用(yong)(yong)堿性(xing)鋅(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)鋅(xin)(xin)(xin)(xin)彩色鈍(dun)化(hua)工藝。有時為(wei)(wei)了(le)產(chan)品的配色需要(yao)，也可以采(cai)用(yong)(yong)藍白色鈍(dun)化(hua)工藝，比如軍綠色鈍(dun)化(hua)、黑色鈍(dun)化(hua)等。為(wei)(wei)提高鋼(gang)管(guan)(guan)的耐(nai)腐(fu)蝕(shi)性(xing)能，對一(yi)般(ban)鋼(gang)管(guan)(guan)進行(xing)鍍(du)(du)鋅(xin)(xin)(xin)(xin)。鍍(du)(du)鋅(xin)(xin)(xin)(xin)卷分熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)和電鍍(du)(du)鋅(xin)(xin)(xin)(xin)兩種(zhong)，熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)鍍(du)(du)鋅(xin)(xin)(xin)(xin)層厚，電鍍(du)(du)鋅(xin)(xin)(xin)(xin)成本低，表面不是很光滑。吹氧(yang)焊管(guan)(guan)：用(yong)(yong)作(zuo)煉(lian)鋼(gang)吹氧(yang)用(yong)(yong)管(guan)(guan)，一(yi)般(ban)用(yong)(yong)小口徑(jing)的焊接(jie)鋼(gang)管(guan)(guan)，規(gui)格由3/8-2寸八(ba)種(zhong)。用(yong)(yong)08、10、15、20或(huo)者195-Q235的鋼(gang)帶制作(zuo)成的，為(wei)(wei)了(le)防腐(fu)蝕(shi)，有得進行(xing)滲(shen)鋁處理。鍍(du)(du)鋅(xin)(xin)(xin)(xin)其防護(hu)作(zuo)用(yong)(yong)更強，抗腐(fu)蝕(shi)能力(li)強。整(zheng)個結(jie)(jie)構(gou)由鋅(xin)(xin)(xin)(xin)，形成致密的四(si)元結(jie)(jie)晶體，此結(jie)(jie)晶體在(zai)鋼(gang)板上形成一(yi)層屏障， 因而有效的防止腐(fu)蝕(shi)因子(zi)穿(chuan)透。 耐(nai)腐(fu)蝕(shi)性(xing)來自鋅(xin)(xin)(xin)(xin)的障礙層保護(hu)功能強。