首先(xian)，在(zai)鋼結構(gou)(gou)樓(lou)層板(ban)(ban)(ban)中(zhong)要(yao)達到耐火(huo)1.5小(xiao)時，總的(de)來說可以選擇開口(kou)板(ban)(ban)(ban)、縮(suo)口(kou)板(ban)(ban)(ban)、閉(bi)口(kou)板(ban)(ban)(ban)三(san)大類。規范上混凝土(tu)要(yao)高(gao)于(yu)開口(kou)板(ban)(ban)(ban)肋(lei)頂之上80mm，并且板(ban)(ban)(ban)底(di)需配置板(ban)(ban)(ban)底(di)受力筋(jin)。還(huan)有一種就是(shi)再開口(kou)板(ban)(ban)(ban)底(di)部(bu)刷(shua)防火(huo)涂(tu)料(liao)，涂(tu)料(liao)厚度大于(yu)等(deng)于(yu)15,這樣的(de)話，只(zhi)要(yao)達到構(gou)(gou)造(zao)要(yao)求(qiu)高(gao)于(yu)肋(lei)頂5公分就可以了。而(er)縮(suo)口(kou)板(ban)(ban)(ban)和(he)閉(bi)口(kou)板(ban)(ban)(ban)，只(zhi)需要(yao)總的(de)樓(lou)板(ban)(ban)(ban)厚度大于(yu)等(deng)于(yu)110即可，但是(shi)縮(suo)口(kou)板(ban)(ban)(ban)雖(sui)然在(zai)防火(huo)方面比開口(kou)板(ban)(ban)(ban)要(yao)好。但是(shi)底(di)部(bu)還(huan)是(shi)需要(yao)加板(ban)(ban)(ban)底(di)受力筋(jin)，而(er)閉(bi)口(kou)板(ban)(ban)(ban)則不需要(yao)。

樓(lou)承板(ban)(ban)鋼(gang)筋(jin)(jin)(jin)(jin)桁架(jia)(jia)是將(jiang)樓(lou)板(ban)(ban)中(zhong)的(de)(de)鋼(gang)筋(jin)(jin)(jin)(jin)在工(gong)廠采用(yong)進(jin)口(kou)設備加工(gong)成鋼(gang)筋(jin)(jin)(jin)(jin)桁架(jia)(jia)，并將(jiang)鋼(gang)筋(jin)(jin)(jin)(jin)桁架(jia)(jia)與鍍鋅鋼(gang)板(ban)(ban)在工(gong)廠焊(han)接(jie)成一(yi)(yi)體的(de)(de)組(zu)合(he)模板(ban)(ban)，使(shi)其在施工(gong)階段可作(zuo)為(wei)鋼(gang)梁的(de)(de)側(ce)向(xiang)支撐使(shi)用(yong)！樓(lou)板(ban)(ban)連(lian)接(jie)采用(yong)扣合(he)方(fang)式，板(ban)(ban)與板(ban)(ban)之間(jian)的(de)(de)拉鉤連(lian)接(jie)應(ying)緊密，保(bao)(bao)證澆筑混凝土時不漏(lou)漿，同(tong)(tong)時注(zhu)(zhu)(zhu)意(yi)(yi)排(pai)板(ban)(ban)方(fang)向(xiang)要(yao)(yao)(yao)一(yi)(yi)致，桁架(jia)(jia)節點間(jian)距(ju)為(wei)200㎜，注(zhu)(zhu)(zhu)意(yi)(yi)不同(tong)(tong)模板(ban)(ban)的(de)(de)橫(heng)向(xiang)節點要(yao)(yao)(yao)對齊。我們仔細觀察的(de)(de)話會(hui)發現很多高層建筑上都會(hui)設置鋼(gang)筋(jin)(jin)(jin)(jin)桁架(jia)(jia)樓(lou)承板(ban)(ban)，我們雖然經(jing)常用(yong)到該(gai)樓(lou)承板(ban)(ban)，但很少有(you)人知道(dao)這種(zhong)板(ban)(ban)材為(wei)什么會(hui)用(yong)于高層建筑中(zhong)。下面小編將(jiang)為(wei)您(nin)介紹(shao)一(yi)(yi)下該(gai)板(ban)(ban)材在高層建筑中(zhong)的(de)(de)使(shi)用(yong)優勢(shi)！鋼(gang)筋(jin)(jin)(jin)(jin)樓(lou)承板(ban)(ban)的(de)(de)搭(da)接(jie)是有(you)著(zhu)嚴格的(de)(de)施工(gong)要(yao)(yao)(yao)求的(de)(de)，為(wei)保(bao)(bao)障樓(lou)承板(ban)(ban)安裝牢固，該(gai)板(ban)(ban)材的(de)(de)搭(da)接(jie)需(xu)要(yao)(yao)(yao)按照說明書正(zheng)確進(jin)行，搭(da)接(jie)過程中(zhong)還需(xu)要(yao)(yao)(yao)注(zhu)(zhu)(zhu)意(yi)(yi)，沿順(shun)肋方(fang)向(xiang)，壓型(xing)鋼(gang)板(ban)(ban)如果可以(yi)滿(man)足(zu)正(zheng)截面承載力及剪切粘結承載力的(de)(de)要(yao)(yao)(yao)求，可以(yi)不用(yong)配(pei)順(shun)肋方(fang)向(xiang)的(de)(de)鋼(gang)筋(jin)(jin)(jin)(jin)，這時候要(yao)(yao)(yao)注(zhu)(zhu)(zhu)意(yi)(yi)計算剪切粘結承載力。

鍍鋅卷價格熱鍍鋅卷板價格行業統計數據顯示，十一月國內粗鋼日均產量為兩百零九萬噸，環比下降3.3%，創出今年以來水平，但是當前減產受到季節性因素支撐，市場對數據有效性提出質疑。綿竹鍍鋅卷鍍(du)鋅卷工(gong)(gong)業(ye)(ye)品而言，近期(qi)陸續公布(bu)的重要數據中性偏多。但(dan)值(zhi)(zhi)得(de)注意的是(shi)(shi)，同年十一月熱鍍(du)鋅卷板(ban)價格工(gong)(gong)業(ye)(ye)增加(jia)值(zhi)(zhi)和投資增速放緩，進一步印證了國內總需求乏力，工(gong)(gong)業(ye)(ye)復蘇形勢(shi)不(bu)容樂觀(guan)。加(jia)上未來經濟(ji)結構調整等因素(su)，工(gong)(gong)業(ye)(ye)品價格反彈(dan)高度(du)將有限。傳統(tong)需求淡(dan)季效(xiao)應(ying)還在持續不(bu)斷地發酵，冬(dong)儲(chu)效(xiao)果(guo)不(bu)佳。雖然數據顯(xian)示供應(ying)壓力開始減(jian)輕，但(dan)是(shi)(shi)目前處于鋼鐵需求淡(dan)季，市場成交萎縮，下游(you)采(cai)購遲遲未能有效(xiao)跟進，市場信心不(bu)足，鍍(du)鋅鋼板(ban)貿易商囤貨現象也不(bu)明顯(xian)。

重慶鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)按生產及加工(gong)方法可分為以(yi)下幾類： 熱(re)浸鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)浸入熔解的(de)鋅(xin)(xin)(xin)(xin)槽中，使(shi)其表面(mian)粘附一(yi)層(ceng)鋅(xin)(xin)(xin)(xin)的(de)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。目(mu)前主要采(cai)用連續(xu)(xu)鍍(du)(du)鋅(xin)(xin)(xin)(xin)工(gong)藝生產，即把(ba)成(cheng)卷(juan)的(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)連續(xu)(xu)浸在熔解有(you)(you)鋅(xin)(xin)(xin)(xin)的(de)鍍(du)(du)槽中制成(cheng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)； 合(he)金(jin)(jin)化鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。為克服單面(mian)未(wei)涂鋅(xin)(xin)(xin)(xin)的(de)缺點，又有(you)(you)一(yi)種在另面(mian)涂以(yi)薄(bo)層(ceng)鋅(xin)(xin)(xin)(xin)的(de)鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)，即雙(shuang)面(mian)差鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)；合(he)金(jin)(jin)、復合(he)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。它是用鋅(xin)(xin)(xin)(xin)和其他(ta)金(jin)(jin)屬如鉛、鋅(xin)(xin)(xin)(xin)制成(cheng)合(he)金(jin)(jin)乃至復合(he)鍍(du)(du)成(cheng)的(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)既(ji)具有(you)(you)防(fang)銹性能(neng)(neng)，又有(you)(you)良好的(de)涂裝性能(neng)(neng)。