堆(dui)積樓(lou)(lou)承(cheng)(cheng)板的(de)地坪應(ying)(ying)(ying)(ying)基本平坦，鋼(gang)(gang)(gang)筋桁架樓(lou)(lou)承(cheng)(cheng)板堆(dui)積不宜過高，每堆(dui)不超越60張。樓(lou)(lou)承(cheng)(cheng)板運(yun)至現場(chang)，需妥善保(bao)護(hu)，不得(de)(de)有(you)任何損(sun)壞和污染(ran)，特別(bie)(bie)不得(de)(de)感染(ran)油(you)污。樓(lou)(lou)承(cheng)(cheng)板應(ying)(ying)(ying)(ying)根據排版圖預先切開、編號。起(qi)吊(diao)(diao)(diao)前，每捆要有(you)兩條鋼(gang)(gang)(gang)絲繩，分別(bie)(bie)捆于(yu)兩頭四(si)分之一鋼(gang)(gang)(gang)板長度(du)處，采用專用吊(diao)(diao)(diao)具吊(diao)(diao)(diao)起(qi)。應(ying)(ying)(ying)(ying)先行試吊(diao)(diao)(diao)，檢查重心是否穩定，鋼(gang)(gang)(gang)索是否會滑動(dong)，待牢(lao)靠，無慮(lv)時方可吊(diao)(diao)(diao)起(qi)。起(qi)吊(diao)(diao)(diao)時，應(ying)(ying)(ying)(ying)從下往上(shang)樓(lou)(lou)層(ceng)次序吊(diao)(diao)(diao)料為原則，避(bi)免(mian)因先行吊(diao)(diao)(diao)放上(shang)層(ceng)資料后(hou)，阻止下面(mian)樓(lou)(lou)層(ceng)的(de)吊(diao)(diao)(diao)放作業。整疊(die)樓(lou)(lou)承(cheng)(cheng)板放梁面(mian)時，應(ying)(ying)(ying)(ying)考(kao)慮(lv)梁的(de)承(cheng)(cheng)載能(neng)力，避(bi)免(mian)因集中載荷過大(da)，造成梁的(de)變形。樓(lou)(lou)承(cheng)(cheng)板吊(diao)(diao)(diao)至樓(lou)(lou)層(ceng)，暫(zan)時不鋪(pu)設(she)時，應(ying)(ying)(ying)(ying)作牢(lao)靠固定，避(bi)免(mian)飛落和滑落傷人。

隨著鋼結(jie)(jie)構在建筑(zhu)(zhu)材料中(zhong)的興起，越(yue)來(lai)越(yue)多的人選擇使用(yong)鋼結(jie)(jie)構樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)了(le)，鋼結(jie)(jie)構構件工(gong)(gong)(gong)廠產(chan)(chan)業化生產(chan)(chan)大大縮短了(le)工(gong)(gong)(gong)程工(gong)(gong)(gong)期，而樓板(ban)(ban)(ban)(ban)(ban)的施工(gong)(gong)(gong)方法卻成為影(ying)響(xiang)工(gong)(gong)(gong)期的重要(yao)因(yin)素(su)。采(cai)用(yong)那一(yi)代樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)對于樓板(ban)(ban)(ban)(ban)(ban)的耐火性能也(ye)有(you)區別。樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)的厚(hou)(hou)(hou)度(du)(du)(du)(du)一(yi)般都(dou)是(shi)按(an)保險(xian)起見設計的比較(jiao)厚(hou)(hou)(hou)，正常情(qing)況下鋼梁之間的跨(kua)度(du)(du)(du)(du)在2m以(yi)內樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚(hou)(hou)(hou)度(du)(du)(du)(du)在0.75-0.8mm就(jiu)(jiu)可以(yi)了(le)，2-2.5m樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚(hou)(hou)(hou)度(du)(du)(du)(du)用(yong)0.8-1.0就(jiu)(jiu)可以(yi)了(le)，跨(kua)度(du)(du)(du)(du)在3-4米(mi)樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚(hou)(hou)(hou)度(du)(du)(du)(du)用(yong)1.5mm，超過5m的跨(kua)度(du)(du)(du)(du)是(shi)用(yong)臨時支撐，因(yin)素(su)就(jiu)(jiu)是(shi)混泥(ni)土(tu)澆筑(zhu)(zhu)的高度(du)(du)(du)(du)，混泥(ni)土(tu)澆筑(zhu)(zhu)的越(yue)高，樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)所(suo)需要(yao)的厚(hou)(hou)(hou)度(du)(du)(du)(du)也(ye)就(jiu)(jiu)越(yue)厚(hou)(hou)(hou)，還有(you)一(yi)個(ge)大家容易(yi)忽略的因(yin)素(su)就(jiu)(jiu)是(shi)螺釘(ding)的好壞也(ye)是(shi)決定樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚(hou)(hou)(hou)度(du)(du)(du)(du)的，螺釘(ding)越(yue)好樓承(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)的承(cheng)(cheng)載(zai)力(li)就(jiu)(jiu)越(yue)強。

熱(re)鍍(du)(du)鋅(xin)(xin)生(sheng)產(chan)發(fa)展(zhan)一直處(chu)于滯(zhi)后(hou)狀態。20世(shi)紀50年(nian)(nian)代到60年(nian)(nian)代陸續建成了13條單張(zhang)鋼(gang)板(ban)熔劑法(fa)熱(re)鍍(du)(du)鋅(xin)(xin)機組，能力為(wei)10萬t/a，但因產(chan)量低、成本(ben)高(gao)、質量差、污染環境、經濟效益差等缺(que)陷已先后(hou)停(ting)、轉(zhuan)產(chan)。從20世(shi)紀70年(nian)(nian)代末，我國才開始建造大(da)型(xing)寬帶(dai)熱(re)鍍(du)(du)鋅(xin)(xin)機組。熱(re)鍍(du)(du)鋅(xin)(xin)帶(dai)鋼(gang)在我國市場(chang)一直是緊缺(que)品種。從20世(shi)紀90年(nian)(nian)代中期以來，每年(nian)(nian)都要從國外進口(kou)80-100萬t左(zuo)右。隨著國內經濟的(de)(de)發(fa)展(zhan)，尤其是汽車、家電(dian)及建筑業的(de)(de)發(fa)展(zhan)，對鍍(du)(du)鋅(xin)(xin)帶(dai)鋼(gang)的(de)(de)需求量也(ye)大(da)大(da)增加。

重(zhong)慶鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)按(an)生產(chan)及加(jia)工方法可分為以下幾類： 熱浸(jin)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)板(ban)(ban)(ban)。將薄(bo)鋼(gang)板(ban)(ban)(ban)浸(jin)入熔解(jie)的鋅(xin)(xin)槽中(zhong)，使其表(biao)面粘附一層(ceng)鋅(xin)(xin)的薄(bo)鋼(gang)板(ban)(ban)(ban)。目前(qian)主要采用(yong)連續鍍(du)(du)(du)鋅(xin)(xin)工藝生產(chan)，即(ji)把(ba)成卷的鋼(gang)板(ban)(ban)(ban)連續浸(jin)在(zai)熔解(jie)有鋅(xin)(xin)的鍍(du)(du)(du)槽中(zhong)制(zhi)成鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)板(ban)(ban)(ban)； 合金(jin)化(hua)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)板(ban)(ban)(ban)。為克服單面未涂(tu)鋅(xin)(xin)的缺點，又有一種在(zai)另面涂(tu)以薄(bo)層(ceng)鋅(xin)(xin)的鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)，即(ji)雙面差鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)；合金(jin)、復(fu)合鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)板(ban)(ban)(ban)。它是用(yong)鋅(xin)(xin)和(he)其他金(jin)屬如鉛、鋅(xin)(xin)制(zhi)成合金(jin)乃至復(fu)合鍍(du)(du)(du)成的鋼(gang)板(ban)(ban)(ban)。這種鋼(gang)板(ban)(ban)(ban)既具有防銹性(xing)能，又有良好的涂(tu)裝性(xing)能。

江油鍍鋅鋼近期鋼價延續低迷，隨著通國規模的酷暑和旱季到來，熱鍍鋅卷板價格商場逐漸進入需要旺季，海內鋼鐵商場或將窄幅調整。在決策層兩手抓制度措施落實狀況、貨銀本位度定向寬松力度加大的直觀層面利好牽動下，商場信念逐漸趨穩，短期海內鋼價無望止跌企穩;另一上面，以后鋼價殺跌電能有余，而上漲也仍然屏障重重。鍍鋅鋼廠家熱(re)鍍鋅卷板價(jia)格價(jia)錢或(huo)將長(chang)期在(zai)于(yu)低(di)位運(yun)行場面(mian)。

首先，在鋼結(jie)構樓(lou)層板(ban)(ban)中要(yao)達(da)到(dao)耐(nai)火(huo)(huo)1.5小時，總(zong)的來說可(ke)以選擇開(kai)口(kou)板(ban)(ban)、縮(suo)口(kou)板(ban)(ban)、閉(bi)口(kou)板(ban)(ban)三大(da)(da)類。規范上(shang)混凝土要(yao)高(gao)于(yu)(yu)開(kai)口(kou)板(ban)(ban)肋頂之(zhi)上(shang)80mm，并且板(ban)(ban)底(di)需(xu)配置板(ban)(ban)底(di)受力筋(jin)。還有(you)一(yi)種就(jiu)是(shi)(shi)再開(kai)口(kou)板(ban)(ban)底(di)部刷(shua)防(fang)火(huo)(huo)涂料(liao)，涂料(liao)厚(hou)度大(da)(da)于(yu)(yu)等于(yu)(yu)15,這樣的話，只要(yao)達(da)到(dao)構造要(yao)求高(gao)于(yu)(yu)肋頂5公分就(jiu)可(ke)以了。而(er)(er)縮(suo)口(kou)板(ban)(ban)和(he)閉(bi)口(kou)板(ban)(ban)，只需(xu)要(yao)總(zong)的樓(lou)板(ban)(ban)厚(hou)度大(da)(da)于(yu)(yu)等于(yu)(yu)110即(ji)可(ke)，但是(shi)(shi)縮(suo)口(kou)板(ban)(ban)雖然在防(fang)火(huo)(huo)方(fang)面比開(kai)口(kou)板(ban)(ban)要(yao)好。但是(shi)(shi)底(di)部還是(shi)(shi)需(xu)要(yao)加板(ban)(ban)底(di)受力筋(jin)，而(er)(er)閉(bi)口(kou)板(ban)(ban)則不需(xu)要(yao)。