樓承(cheng)板(ban)(ban)(ban)(ban)(ban)鋼(gang)(gang)筋(jin)桁(heng)架(jia)是(shi)將(jiang)樓板(ban)(ban)(ban)(ban)(ban)中的(de)(de)(de)(de)(de)(de)鋼(gang)(gang)筋(jin)在工廠(chang)采用(yong)進口(kou)設(she)(she)備(bei)加(jia)工成(cheng)鋼(gang)(gang)筋(jin)桁(heng)架(jia)，并將(jiang)鋼(gang)(gang)筋(jin)桁(heng)架(jia)與鍍(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)(ban)在工廠(chang)焊接(jie)(jie)成(cheng)一體的(de)(de)(de)(de)(de)(de)組合模板(ban)(ban)(ban)(ban)(ban)，使其在施工階(jie)段(duan)可作為(wei)鋼(gang)(gang)梁的(de)(de)(de)(de)(de)(de)側向(xiang)(xiang)(xiang)(xiang)支撐(cheng)使用(yong)！樓板(ban)(ban)(ban)(ban)(ban)連(lian)接(jie)(jie)采用(yong)扣合方式(shi)，板(ban)(ban)(ban)(ban)(ban)與板(ban)(ban)(ban)(ban)(ban)之間的(de)(de)(de)(de)(de)(de)拉鉤(gou)連(lian)接(jie)(jie)應緊密，保證澆筑(zhu)混凝土時不漏漿，同時注意(yi)(yi)排板(ban)(ban)(ban)(ban)(ban)方向(xiang)(xiang)(xiang)(xiang)要(yao)一致(zhi)，桁(heng)架(jia)節點間距為(wei)200㎜，注意(yi)(yi)不同模板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)橫向(xiang)(xiang)(xiang)(xiang)節點要(yao)對(dui)齊。我(wo)們(men)仔細觀(guan)察(cha)的(de)(de)(de)(de)(de)(de)話會發現很(hen)多高(gao)層建(jian)筑(zhu)上都(dou)會設(she)(she)置鋼(gang)(gang)筋(jin)桁(heng)架(jia)樓承(cheng)板(ban)(ban)(ban)(ban)(ban)，我(wo)們(men)雖(sui)然(ran)經常用(yong)到該(gai)(gai)樓承(cheng)板(ban)(ban)(ban)(ban)(ban)，但很(hen)少(shao)有人(ren)知道這種板(ban)(ban)(ban)(ban)(ban)材(cai)(cai)為(wei)什么會用(yong)于高(gao)層建(jian)筑(zhu)中。下面小(xiao)編(bian)將(jiang)為(wei)您介(jie)紹一下該(gai)(gai)板(ban)(ban)(ban)(ban)(ban)材(cai)(cai)在高(gao)層建(jian)筑(zhu)中的(de)(de)(de)(de)(de)(de)使用(yong)優勢！鋼(gang)(gang)筋(jin)樓承(cheng)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)搭接(jie)(jie)是(shi)有著嚴(yan)格(ge)的(de)(de)(de)(de)(de)(de)施工要(yao)求的(de)(de)(de)(de)(de)(de)，為(wei)保障樓承(cheng)板(ban)(ban)(ban)(ban)(ban)安裝(zhuang)牢固，該(gai)(gai)板(ban)(ban)(ban)(ban)(ban)材(cai)(cai)的(de)(de)(de)(de)(de)(de)搭接(jie)(jie)需要(yao)按照(zhao)說明書正(zheng)確進行(xing)，搭接(jie)(jie)過程中還需要(yao)注意(yi)(yi)，沿(yan)順肋方向(xiang)(xiang)(xiang)(xiang)，壓型鋼(gang)(gang)板(ban)(ban)(ban)(ban)(ban)如(ru)果(guo)可以滿(man)足正(zheng)截(jie)面承(cheng)載(zai)力(li)及剪切粘結承(cheng)載(zai)力(li)的(de)(de)(de)(de)(de)(de)要(yao)求，可以不用(yong)配順肋方向(xiang)(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)鋼(gang)(gang)筋(jin)，這時候要(yao)注意(yi)(yi)計算剪切粘結承(cheng)載(zai)力(li)。

鍍鋅卷廠家熱鍍鋅生產發展一直處于滯后狀態。20世紀50年代到60年代陸續建成了13條單張鋼板熔劑法熱鍍鋅機組，能力為10萬t/a，但因產量低、成本高、質量差、污染環境、經濟效益差等缺陷已先后停、轉產。從20世紀70年代末，我國才開始建造大型寬帶熱鍍鋅機組。德陽鍍鋅卷熱鍍(du)鋅帶鋼(gang)在我國市(shi)場一直(zhi)是緊缺品種。從20世紀90年代中期以來，每年都(dou)要從國外進口80-100萬(wan)t左右。隨著國內(nei)經(jing)濟的(de)發展(zhan)，尤其是汽車、家電及(ji)建筑業的(de)發展(zhan)，對鍍(du)鋅帶鋼(gang)的(de)需求量也大大增加。

重慶樓承(cheng)板(ban)(ban)(ban)的鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)量沒有(you)一個具體的標準(zhun)，制作壓型鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)的冷軋鋼(gang)(gang)(gang)(gang)卷須連(lian)續(xu)熱浸鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)（或鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)），鍍(du)(du)(du)(du)（鋁）鋅(xin)(xin)(xin)(xin)量視設計要求而定(ding)。樓承(cheng)板(ban)(ban)(ban)用壓型鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)宜選(xuan)擇(ze)熱浸鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。不允許使用電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)，電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)僅(jin)在(zai)基材表面(mian)形成保護(hu)層，防(fang)腐能力有(you)限(xian)。目前市場上(shang)有(you)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)（鍍(du)(du)(du)(du)層含鋁5%或55%），在(zai)酸性環境下的防(fang)腐效果由(you)于熱浸鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)，但在(zai)混凝土(tu)(tu)的堿性條件下，鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)的防(fang)腐蝕性能低(di)于熱浸鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)，且鋁會和混凝土(tu)(tu)發生(sheng)反應，并降低(di)混凝土(tu)(tu)與鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)的粘結性能。因此(ci)參考國(guo)外規范，及國(guo)內外工程，行家壓型鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)不建議使用鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。

首(shou)先，在(zai)鋼結構(gou)(gou)樓層板(ban)(ban)中要(yao)(yao)(yao)達到(dao)耐火1.5小(xiao)時，總的來說可以選擇開口板(ban)(ban)、縮(suo)(suo)口板(ban)(ban)、閉(bi)(bi)口板(ban)(ban)三大類。規范上混凝(ning)土(tu)要(yao)(yao)(yao)高于(yu)開口板(ban)(ban)肋頂之上80mm，并且(qie)板(ban)(ban)底需配置板(ban)(ban)底受力筋。還有一(yi)種就(jiu)是(shi)再開口板(ban)(ban)底部(bu)刷防(fang)火涂料，涂料厚(hou)度(du)大于(yu)等(deng)于(yu)15,這樣的話(hua)，只要(yao)(yao)(yao)達到(dao)構(gou)(gou)造要(yao)(yao)(yao)求高于(yu)肋頂5公分就(jiu)可以了(le)。而縮(suo)(suo)口板(ban)(ban)和(he)閉(bi)(bi)口板(ban)(ban)，只需要(yao)(yao)(yao)總的樓板(ban)(ban)厚(hou)度(du)大于(yu)等(deng)于(yu)110即可，但(dan)是(shi)縮(suo)(suo)口板(ban)(ban)雖然(ran)在(zai)防(fang)火方面比(bi)開口板(ban)(ban)要(yao)(yao)(yao)好。但(dan)是(shi)底部(bu)還是(shi)需要(yao)(yao)(yao)加(jia)板(ban)(ban)底受力筋，而閉(bi)(bi)口板(ban)(ban)則不需要(yao)(yao)(yao)。