近期鋼(gang)(gang)價(jia)延續(xu)低迷，隨著通國規模的酷(ku)暑和(he)旱(han)季(ji)到來，熱鍍鋅卷板價(jia)格商場逐(zhu)漸進入(ru)需要旺季(ji)，海內鋼(gang)(gang)鐵商場或將(jiang)窄幅調(diao)整。在決策(ce)層兩手(shou)抓(zhua)制(zhi)度措施落實狀況、貨銀(yin)本位度定向寬松力度加大的直(zhi)觀層面(mian)利好牽動下(xia)，商場信念(nian)逐(zhu)漸趨穩(wen)，短期海內鋼(gang)(gang)價(jia)無望止跌企(qi)穩(wen);另一上面(mian)，以后(hou)鋼(gang)(gang)價(jia)殺(sha)跌電能(neng)有(you)余(yu)，而上漲也仍然屏(ping)障重重。熱鍍鋅卷板價(jia)格價(jia)錢或將(jiang)長期在于低位運行(xing)場面(mian)。

樓承(cheng)(cheng)板(ban)(ban)組合板(ban)(ban)是(shi)一種十分(fen)合理的(de)結構方式，它能(neng)夠按其各組成(cheng)部件所處(chu)(chu)(chu)的(de)方位和特(te)色，充分(fen)發(fa)揮(hui)鋼(gang)材抗(kang)拉和混(hun)凝土抗(kang)壓(ya)功(gong)能(neng)好的(de)長處(chu)(chu)(chu)，并具(ju)(ju)有杰出的(de)抗(kang)震功(gong)能(neng)、施(shi)工功(gong)能(neng)。這種結構現在被廣泛運用(yong)于國內外(wai)修建中，但在國內大(da)都將(jiang)樓承(cheng)(cheng)板(ban)(ban)當作(zuo)模(mo)板(ban)(ban)運用(yong)，而沒有充分(fen)發(fa)揮(hui)樓承(cheng)(cheng)板(ban)(ban)的(de)效果。 與一般鋼(gang)筋混(hun)凝土樓板(ban)(ban)比較，樓承(cheng)(cheng)板(ban)(ban)組合樓板(ban)(ban)具(ju)(ju)備以下長處(chu)(chu)(chu)：樓承(cheng)(cheng)板(ban)(ban)能(neng)夠作(zuo)為現澆混(hun)凝土的(de)模(mo)板(ban)(ban)。這樣就省掉了施(shi)工中裝(zhuang)置和撤除模(mo)板(ban)(ban)等工序，然后(hou)節約了時刻和勞(lao)動力;當樓承(cheng)(cheng)板(ban)(ban)裝(zhuang)置好今后(hou)將(jiang)能(neng)夠作(zuo)為施(shi)工平臺(tai)運用(yong)。

重慶樓(lou)(lou)承(cheng)板(ban)(ban)(ban)分兩種。一(yi)種是(shi)(shi)把(ba)樓(lou)(lou)承(cheng)板(ban)(ban)(ban)當做承(cheng)受拉(la)力的(de)鋼筋(jin)計算(suan)(suan)的(de)，另(ling)外一(yi)種是(shi)(shi)僅把(ba)樓(lou)(lou)承(cheng)板(ban)(ban)(ban)作為(wei)模板(ban)(ban)(ban)計算(suan)(suan)而不參與受力的(de)。做模板(ban)(ban)(ban)計算(suan)(suan)的(de)比較簡單(dan)，直(zhi)接按照跨度(du)頂就行了(le)。2米以(yi)下選0.8的(de)，2-3米的(de)選1.0的(de)。樓(lou)(lou)承(cheng)板(ban)(ban)(ban)作為(wei)受力鋼筋(jin)計算(suan)(suan)，就按照模板(ban)(ban)(ban)的(de)選用樓(lou)(lou)承(cheng)板(ban)(ban)(ban)（或者加厚且(qie)只(zhi)能加厚），然后在計算(suan)(suan)配筋(jin)的(de)時候可以(yi)按照面積減少(shao)鋼筋(jin)用量。樓(lou)(lou)承(cheng)板(ban)(ban)(ban)不能單(dan)獨(du)計算(suan)(suan)的(de)，它和(he)整個(ge)樓(lou)(lou)板(ban)(ban)(ban)是(shi)(shi)一(yi)個(ge)體系的(de)。

鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)是(shi)為(wei)防止鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)表面(mian)遭受腐(fu)蝕，延長(chang)其(qi)使用壽(shou)命，在(zai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)表面(mian)涂以一層金(jin)(jin)屬鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)，這(zhe)種涂鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)稱(cheng)為(wei)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用熱(re)浸(jin)(jin)法(fa)制(zhi)造，但在(zai)出槽后，立(li)即把它加(jia)(jia)熱(re)到500℃左右，使其(qi)生成鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)和(he)鐵(tie)的(de)(de)(de)合(he)金(jin)(jin)被膜。這(zhe)種鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)卷具(ju)有(you)良好的(de)(de)(de)涂料的(de)(de)(de)密著(zhu)(zhu)性(xing)和(he)焊(han)接性(xing)。合(he)金(jin)(jin)化鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用熱(re)浸(jin)(jin)法(fa)制(zhi)造，但在(zai)出槽后，立(li)即把它加(jia)(jia)熱(re)到500℃左右，使其(qi)生成鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)和(he)鐵(tie)的(de)(de)(de)合(he)金(jin)(jin)被膜。這(zhe)種鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)具(ju)有(you)良好的(de)(de)(de)涂料的(de)(de)(de)密著(zhu)(zhu)性(xing)和(he)焊(han)接性(xing)。熱(re)浸(jin)(jin)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)浸(jin)(jin)入(ru)熔(rong)解(jie)的(de)(de)(de)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)槽中(zhong)，使其(qi)表面(mian)粘附(fu)一層鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。目前主(zhu)要采用連(lian)續鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)工(gong)藝生產(chan)，即把成卷的(de)(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)連(lian)續浸(jin)(jin)在(zai)熔(rong)解(jie)有(you)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)鍍(du)(du)(du)槽中(zhong)制(zhi)成鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。合(he)金(jin)(jin)、復合(he)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。它是(shi)用鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)和(he)其(qi)他金(jin)(jin)屬如鉛、鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)制(zhi)成合(he)金(jin)(jin)乃至(zhi)復合(he)鍍(du)(du)(du)成的(de)(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)既具(ju)有(you)防銹性(xing)能，又有(you)良好的(de)(de)(de)涂裝性(xing)能。

重慶(qing)鍍(du)鋅(xin)板(ban)(ban)按生產及加(jia)工(gong)方(fang)法可(ke)分為(wei)以下(xia)幾類： 熱(re)浸鍍(du)鋅(xin)鋼(gang)板(ban)(ban)。將薄(bo)鋼(gang)板(ban)(ban)浸入熔解的(de)鋅(xin)槽(cao)中(zhong)(zhong)，使其表面粘附(fu)一層鋅(xin)的(de)薄(bo)鋼(gang)板(ban)(ban)。目(mu)前主要采用連續鍍(du)鋅(xin)工(gong)藝生產，即(ji)把(ba)成卷(juan)的(de)鋼(gang)板(ban)(ban)連續浸在熔解有(you)(you)鋅(xin)的(de)鍍(du)槽(cao)中(zhong)(zhong)制成鍍(du)鋅(xin)鋼(gang)板(ban)(ban)； 合(he)(he)金(jin)化鍍(du)鋅(xin)鋼(gang)板(ban)(ban)。為(wei)克(ke)服單(dan)面未涂鋅(xin)的(de)缺點(dian)，又有(you)(you)一種(zhong)在另面涂以薄(bo)層鋅(xin)的(de)鍍(du)鋅(xin)板(ban)(ban)，即(ji)雙面差鍍(du)鋅(xin)板(ban)(ban)；合(he)(he)金(jin)、復合(he)(he)鍍(du)鋅(xin)鋼(gang)板(ban)(ban)。它是用鋅(xin)和(he)其他金(jin)屬如鉛、鋅(xin)制成合(he)(he)金(jin)乃至復合(he)(he)鍍(du)成的(de)鋼(gang)板(ban)(ban)。這種(zhong)鋼(gang)板(ban)(ban)既(ji)具有(you)(you)防銹(xiu)性能，又有(you)(you)良好的(de)涂裝性能。

內蒙古鍍鋅鋼管樓承板鋼結構柱網間距一般5~9.0m×8~15m，次梁間距3m，而樓承板下料長度為4.97~8.97m，運輸與安裝均較困難，尤其是帶由圓弧區垂直吊裝樓承板，由上而下在次梁狹間穿套比較困難，且打亂了次梁焊接正常工序。控制下料長度為3～6m，則可避免垂直運輸時在次梁間無法吊運的問題。 鍍鋅鋼管批發樓承(cheng)(cheng)板(ban)吊運時(shi)(shi)(shi)采用(yong)專用(yong)軟吊索。每次吊裝時(shi)(shi)(shi)應(ying)檢查軟吊索是否有撕裂、割斷現象。樓承(cheng)(cheng)板(ban)擱(ge)置在鋼梁(liang)上時(shi)(shi)(shi)應(ying)防(fang)止探頭。鋪(pu)料時(shi)(shi)(shi)操作(zuo)人員(yuan)應(ying)系(xi)帶，并保證邊鋪(pu)設邊固(gu)定在周(zhou)邊繩(sheng)上。 焊(han)(han)接采用(yong)熔透點焊(han)(han)連接，施焊(han)(han)前應(ying)準(zhun)備邊角料引(yin)弧(hu)試(shi)焊(han)(han)，調(diao)整(zheng)施焊(han)(han)電流.因樓承(cheng)(cheng)板(ban)底部無水平模板(ban)及垂直(zhi)支撐，澆筑混凝土時(shi)(shi)(shi)布(bu)料不宜(yi)太(tai)集(ji)中，采用(yong)平板(ban)振搗器(qi)及時(shi)(shi)(shi)分攤振搗。