重慶(qing)樓(lou)(lou)承(cheng)板分兩(liang)種。一種是把樓(lou)(lou)承(cheng)板當做承(cheng)受(shou)拉力的(de)鋼(gang)筋計(ji)算的(de)，另外一種是僅把樓(lou)(lou)承(cheng)板作為模(mo)板計(ji)算而不參與受(shou)力的(de)。做模(mo)板計(ji)算的(de)比(bi)較簡單，直接按(an)照跨度頂就行了。2米(mi)以(yi)下選(xuan)(xuan)0.8的(de)，2-3米(mi)的(de)選(xuan)(xuan)1.0的(de)。樓(lou)(lou)承(cheng)板作為受(shou)力鋼(gang)筋計(ji)算，就按(an)照模(mo)板的(de)選(xuan)(xuan)用(yong)樓(lou)(lou)承(cheng)板（或者加(jia)(jia)厚且只能加(jia)(jia)厚），然(ran)后在(zai)計(ji)算配筋的(de)時候可以(yi)按(an)照面積(ji)減少鋼(gang)筋用(yong)量。樓(lou)(lou)承(cheng)板不能單獨計(ji)算的(de)，它(ta)和整個樓(lou)(lou)板是一個體系的(de)。

保山彩涂板重慶鍍鋅板近二十年來鋼帶連續熱鍍鋅技術、裝備以及相應的控制手段均有巨大的發展，使鍍鋅板得以滿足汽車面板和家電用板的苛刻要求，并從而以其比電鍍鋅合金鋼帶廉價、耐蝕性優異而大有取代之勢。酒鋼彩涂板批發熱(re)鍍鋅生(sheng)產技(ji)術(shu)與裝(zhuang)備開發(fa)技(ji)術(shu)及經驗(yan)，通過(guo)技(ji)術(shu)創新、優化設計、精密制造(zao)以及國外技(ji)術(shu)合作，突(tu)破制約我國高性能(neng)汽車用熱(re)鍍鋅鋼板生(sheng)產技(ji)術(shu)與裝(zhuang)備發(fa)展瓶頸。

熱(re)鍍鋅(xin)卷(juan)板(ban)(ban)價格(ge)行業(ye)統(tong)計(ji)數據顯(xian)示，十(shi)一月(yue)國內粗(cu)鋼日均(jun)產(chan)(chan)量為兩百零(ling)九萬噸，環(huan)比下(xia)降3.3%，創出(chu)今年(nian)以來水平，但是當前減產(chan)(chan)受到季(ji)(ji)節性(xing)因素支撐，市(shi)場(chang)對數據有效(xiao)(xiao)性(xing)提出(chu)質(zhi)疑。鍍鋅(xin)卷(juan)工(gong)業(ye)品而言，近期陸續公布的重(zhong)要數據中性(xing)偏多。但值(zhi)得注意的是，同年(nian)十(shi)一月(yue)熱(re)鍍鋅(xin)卷(juan)板(ban)(ban)價格(ge)工(gong)業(ye)增加值(zhi)和投(tou)資增速放緩，進一步印證(zheng)了國內總需求(qiu)乏力，工(gong)業(ye)復蘇形勢不(bu)容樂觀。加上(shang)未(wei)來經濟結(jie)構調整等因素，工(gong)業(ye)品價格(ge)反彈高度將有限。傳統(tong)需求(qiu)淡季(ji)(ji)效(xiao)(xiao)應還在持續不(bu)斷地發(fa)酵，冬儲效(xiao)(xiao)果不(bu)佳。雖然數據顯(xian)示供應壓力開始減輕(qing)，但是目前處于(yu)鋼鐵(tie)需求(qiu)淡季(ji)(ji)，市(shi)場(chang)成交萎縮，下(xia)游采購(gou)遲遲未(wei)能有效(xiao)(xiao)跟進，市(shi)場(chang)信心不(bu)足，鍍鋅(xin)鋼板(ban)(ban)貿(mao)易(yi)商囤貨現象也不(bu)明顯(xian)。

熱(re)浸(jin)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)將薄(bo)(bo)鋼(gang)(gang)板(ban)(ban)(ban)(ban)浸(jin)入熔(rong)解(jie)的(de)鋅(xin)(xin)槽中，使其表面(mian)(mian)(mian)(mian)(mian)粘附一層鋅(xin)(xin)的(de)薄(bo)(bo)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。目前主要采用連(lian)續(xu)鍍(du)(du)(du)鋅(xin)(xin)工藝生產，即把成卷的(de)鋼(gang)(gang)板(ban)(ban)(ban)(ban)連(lian)續(xu)浸(jin)在(zai)(zai)熔(rong)解(jie)有(you)(you)鋅(xin)(xin)的(de)鍍(du)(du)(du)槽中制成鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban);合金化鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)板(ban)(ban)(ban)(ban)也是(shi)用熱(re)浸(jin)法(fa)制造，但在(zai)(zai)出槽后，立即把它加熱(re)到(dao)500 ℃左右，使其生成鋅(xin)(xin)和(he)鐵的(de)合金被膜。這種(zhong)鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)具(ju)有(you)(you)良好的(de)涂料的(de)密著性(xing)(xing)和(he)焊接(jie)性(xing)(xing);電(dian)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。用電(dian)鍍(du)(du)(du)法(fa)制造這種(zhong)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)具(ju)有(you)(you)良好的(de)加工性(xing)(xing)。但鍍(du)(du)(du)層較薄(bo)(bo)，耐腐蝕性(xing)(xing)不如熱(re)浸(jin)法(fa)鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban);單(dan)面(mian)(mian)(mian)(mian)(mian)鍍(du)(du)(du)和(he)雙面(mian)(mian)(mian)(mian)(mian)差(cha)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。單(dan)面(mian)(mian)(mian)(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)，即只在(zai)(zai)一面(mian)(mian)(mian)(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)的(de)產品。在(zai)(zai)焊接(jie)、涂裝、防(fang)銹處理、加工等(deng)方(fang)面(mian)(mian)(mian)(mian)(mian)，具(ju)有(you)(you)比雙面(mian)(mian)(mian)(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)好的(de)適應性(xing)(xing)。