實現(xian)了(le)機械(xie)化生產(chan)(chan)，有利于鋼(gang)(gang)筋排(pai)列(lie)間距均勻、混(hun)凝土(tu)保(bao)護層厚度(du)一致，提高了(le)樓板的(de)施(shi)工(gong)(gong)(gong)質量。裝配式(shi)鋼(gang)(gang)筋桁架樓承板可顯著(zhu)減少現(xian)場鋼(gang)(gang)筋綁扎(zha)工(gong)(gong)(gong)程量，加快施(shi)工(gong)(gong)(gong)進(jin)度(du)，增加施(shi)工(gong)(gong)(gong)保(bao)證，實現(xian)文明施(shi)工(gong)(gong)(gong)。裝配式(shi)模板和連接件拆裝方便(bian)，可多(duo)次重復利用，節(jie)約鋼(gang)(gang)材，符合國家節(jie)能環保(bao)的(de)要求。鋼(gang)(gang)構(gou)自主研(yan)發的(de)產(chan)(chan)品配套(tao)自動化生產(chan)(chan)設備，大大提高了(le)勞動生產(chan)(chan)率，有效降低了(le)產(chan)(chan)品成本，并編(bian)制了(le)產(chan)(chan)品生產(chan)(chan)企(qi)業標準、設計手冊(ce)和節(jie)點(dian)構(gou)造圖集(ji)以及(ji)施(shi)工(gong)(gong)(gong)手冊(ce)。并經過多(duo)項工(gong)(gong)(gong)程應(ying)用，各項性能可以滿(man)足現(xian)澆鋼(gang)(gang)筋混(hun)凝土(tu)樓板承載力(li)和變形的(de)要求。

重慶樓(lou)承(cheng)板(ban)(ban)(ban)(ban)的鍍(du)(du)鋅(xin)量(liang)沒有(you)一個具體的標準，制作壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)的冷軋鋼(gang)(gang)(gang)卷須連續(xu)熱浸(jin)(jin)鍍(du)(du)鋅(xin)（或鍍(du)(du)鋁鋅(xin)），鍍(du)(du)（鋁）鋅(xin)量(liang)視設計要(yao)求而(er)定。樓(lou)承(cheng)板(ban)(ban)(ban)(ban)用壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)宜選擇熱浸(jin)(jin)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。不允許(xu)使用電(dian)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)，電(dian)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)僅在(zai)基材表面(mian)形成保護層(ceng)(ceng)，防腐能力(li)有(you)限。目(mu)前市(shi)場上有(you)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)（鍍(du)(du)層(ceng)(ceng)含鋁5%或55%），在(zai)酸性環境下的防腐效果由于熱浸(jin)(jin)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)，但在(zai)混(hun)凝(ning)土(tu)(tu)的堿性條件下，鍍(du)(du)鋁鋅(xin)的防腐蝕性能低(di)于熱浸(jin)(jin)鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)，且(qie)鋁會和混(hun)凝(ning)土(tu)(tu)發生反應，并降低(di)混(hun)凝(ning)土(tu)(tu)與鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)的粘(zhan)結(jie)性能。因(yin)此參考國外規范，及(ji)國內外工程，行家壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)不建議使用鍍(du)(du)鋁鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。

白鐵批發鍍鋅帶鋼的鋅層特性 電鍍鋅層是不能形成鋅花的，熱鍍鋅層則有鋅花，其形成過程如下：當鍍鋅帶從鋅鍋出來后，經氣刀的噴吹，大量鋅液被吹回鋅鍋，這時帶鋼表面還有純鋅層，呈液 態附在鋼板表面，在鋼板表面形成大量結晶核，隨著鋼板上升冷卻，使結晶核慢慢長成鋅花。綿竹攀華白鐵冷卻速度越快鋅花(hua)越小，冷卻速度越慢鋅花(hua)越大(da)。熱(re)鍍鋅帶(dai)鋼在我國(guo)市場一直是(shi)緊(jin)缺品種。從20世紀(ji)90年(nian)代中期以來，每年(nian)都要從國(guo)外進口80-100萬t左右(you)。隨著國(guo)內經濟的發展(zhan)，尤(you)其(qi)是(shi)汽車、家(jia)電(dian)及建筑業的發展(zhan)，對(dui)鍍鋅帶(dai)鋼的需求量也大(da)大(da)增加。

熱浸(jin)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)將薄鋼(gang)板(ban)(ban)(ban)浸(jin)入熔(rong)解的鋅(xin)(xin)(xin)(xin)槽(cao)(cao)中，使(shi)其(qi)表面(mian)(mian)粘(zhan)附一(yi)層鋅(xin)(xin)(xin)(xin)的薄鋼(gang)板(ban)(ban)(ban)。目(mu)前主(zhu)要采用(yong)連續鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)工藝生產，即把成(cheng)卷的鋼(gang)板(ban)(ban)(ban)連續浸(jin)在熔(rong)解有(you)鋅(xin)(xin)(xin)(xin)的鍍(du)(du)(du)槽(cao)(cao)中制成(cheng)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban);合(he)金(jin)化鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。這種鋼(gang)板(ban)(ban)(ban)也(ye)是用(yong)熱浸(jin)法制造(zao)，但(dan)在出槽(cao)(cao)后(hou)，立即把它加熱到500 ℃左右，使(shi)其(qi)生成(cheng)鋅(xin)(xin)(xin)(xin)和(he)鐵的合(he)金(jin)被膜。這種鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)具(ju)有(you)良(liang)好(hao)的涂(tu)料的密著性(xing)(xing)(xing)和(he)焊接(jie)性(xing)(xing)(xing);電(dian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。用(yong)電(dian)鍍(du)(du)(du)法制造(zao)這種鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)具(ju)有(you)良(liang)好(hao)的加工性(xing)(xing)(xing)。但(dan)鍍(du)(du)(du)層較薄，耐腐蝕(shi)性(xing)(xing)(xing)不如熱浸(jin)法鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban);單面(mian)(mian)鍍(du)(du)(du)和(he)雙面(mian)(mian)差(cha)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。單面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)，即只在一(yi)面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)的產品。在焊接(jie)、涂(tu)裝、防(fang)銹處理、加工等方面(mian)(mian)，具(ju)有(you)比雙面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)好(hao)的適(shi)應性(xing)(xing)(xing)。

鋼(gang)(gang)(gang)筋桁(heng)架樓承(cheng)板完(wan)成(cheng)了(le)機(ji)械化(hua)出產(chan)，有利于鋼(gang)(gang)(gang)筋擺放距(ju)離均勻、混凝土保護(hu)層厚度共(gong)同(tong)，提(ti)高了(le)樓板的(de)施工(gong)(gong)(gong)質量。裝配(pei)式鋼(gang)(gang)(gang)筋桁(heng)架樓承(cheng)板可(ke)明顯(xian)削減現(xian)場(chang)鋼(gang)(gang)(gang)筋綁扎工(gong)(gong)(gong)程(cheng)量，加(jia)速(su)施工(gong)(gong)(gong)進度，添加(jia)施工(gong)(gong)(gong)確(que)保，完(wan)成(cheng)文明施工(gong)(gong)(gong)。裝配(pei)式模板和連接件(jian)拆裝便利，可(ke)屢次(ci)重(zhong)復使用，節省鋼(gang)(gang)(gang)材，契合國家(jia)節能環(huan)保的(de)要求(qiu)。鋼(gang)(gang)(gang)構自主研制的(de)產(chan)品(pin)配(pei)套自動(dong)化(hua)出產(chan)設備，大大提(ti)高了(le)勞動(dong)出產(chan)率，有用降低了(le)產(chan)品(pin)成(cheng)本，并編(bian)制了(le)產(chan)品(pin)出產(chan)企(qi)業規范、規劃手冊和節點構造(zao)圖集以(yi)及施工(gong)(gong)(gong)手冊。該產(chan)品(pin)經過浙江大學土木工(gong)(gong)(gong)程(cheng)測(ce)試中心檢測(ce)，并經過多(duo)項(xiang)工(gong)(gong)(gong)程(cheng)使用，各項(xiang)功(gong)能可(ke)以(yi)滿意(yi)現(xian)澆鋼(gang)(gang)(gang)筋混凝土樓板承(cheng)載力和變(bian)形的(de)要求(qiu)。