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地(di) 址(zhi):重慶(qing)九(jiu)龍坡綠云鋼(gang)材市場A9-293/雙福攀寶鋼(gang)材市場綠城路
首先,在鋼結構樓層板中要達到耐火1.5小時,總的來說可以選擇開口板、縮口板、閉口板三大類。商洛鍍鋅鋼規范上混凝土要高于開口板肋頂之上80mm,并且板底需配置板底受力筋。還有一種就是再開口板底部刷防火涂料,涂料厚度大于等于15,這樣的話,只要達到構造要求高于肋頂5公分就可以了。鍍鋅鋼批發而(er)縮口板和閉(bi)口板,只需要總的樓板厚度大于等于110即可,但是(shi)縮口板雖然在防火方面比開口板要好。但是(shi)底部還是(shi)需要加板底受(shou)力筋(jin),而(er)閉(bi)口板則不需要。
重慶樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)分兩種(zhong)。一種(zhong)是(shi)把樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)當做(zuo)(zuo)承(cheng)(cheng)受拉(la)力的(de)鋼(gang)筋(jin)計(ji)算的(de),另(ling)外一種(zhong)是(shi)僅把樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)作(zuo)為模(mo)(mo)板(ban)(ban)(ban)(ban)計(ji)算而不(bu)參與(yu)受力的(de)。做(zuo)(zuo)模(mo)(mo)板(ban)(ban)(ban)(ban)計(ji)算的(de)比(bi)較簡單,直接按照(zhao)跨度頂就行(xing)了。2米以下選(xuan)0.8的(de),2-3米的(de)選(xuan)1.0的(de)。樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)作(zuo)為受力鋼(gang)筋(jin)計(ji)算,就按照(zhao)模(mo)(mo)板(ban)(ban)(ban)(ban)的(de)選(xuan)用樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)(或(huo)者加厚且(qie)只能加厚),然后在計(ji)算配筋(jin)的(de)時候可以按照(zhao)面積減少(shao)鋼(gang)筋(jin)用量(liang)。樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)(ban)(ban)不(bu)能單獨(du)計(ji)算的(de),它和整個(ge)(ge)樓(lou)(lou)板(ban)(ban)(ban)(ban)是(shi)一個(ge)(ge)體系的(de)。
樓(lou)承板(ban)(ban)的(de)(de)使(shi)用(yong)是(shi)需要安(an)裝的(de)(de),那么如(ru)果要安(an)裝就要選擇合適的(de)(de)小配件,焊后栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)高(gao)度(du)大于壓型(xing)鋼(gang)(gang)板(ban)(ban)波高(gao)30MM(留意挑選樓(lou)板(ban)(ban)的(de)(de)類型(xing));栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)頂面混(hun)(hun)凝(ning)土保護層不小于15MM(留意樓(lou)板(ban)(ban)總厚(hou)度(du))直徑(jing)不宜(yi)大于19MM。樓(lou)承板(ban)(ban)栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)類型(xing)有ф8、ф10、ф13、ф16、ф19、ф22、ф25,栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)一般(ban)在鋼(gang)(gang)結(jie)(jie)構修建中,遍及使(shi)用(yong)在柱(zhu)腳和樓(lou)板(ban)(ban)中,一般(ban)剛度(du)要求高(gao)的(de)(de)柱(zhu)腳都選用(yong)鋼(gang)(gang)柱(zhu)內伸至混(hun)(hun)凝(ning)土中,鋼(gang)(gang)柱(zhu)埋入混(hun)(hun)凝(ning)土的(de)(de)部位四周均布栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)。樓(lou)承板(ban)(ban)輕鋼(gang)(gang)結(jie)(jie)構常用(yong)厚(hou)度(du)為0.8mm,1.0mm,1.2mm,荷(he)載(zai)較大的(de)(de)情況下會用(yong)到1.5mm。一般(ban)需要用(yong)栓(shuan)(shuan)釘(ding)(ding)(ding)(ding)與鋼(gang)(gang)梁(liang)銜接(jie),板(ban)(ban)中配少量鋼(gang)(gang)筋,上面澆混(hun)(hun)凝(ning)土層,總厚(hou)度(du)約在100-200mm之間。
樓(lou)承(cheng)板(ban)(ban)能(neng)夠滿足快速施工的(de)需求(qiu),可(ke)(ke)(ke)以(yi)在(zai)短時(shi)間(jian)內(nei)搭建起牢固(gu)的(de)作業(ye)平臺,而且(qie)還(huan)(huan)能(neng)把(ba)多個樓(lou)承(cheng)板(ban)(ban)層鋪設壓(ya)型(xing)鋼板(ban)(ban),分層澆筑(zhu)混凝(ning)土板(ban)(ban)的(de)流(liu)水施工作業(ye)。可(ke)(ke)(ke)以(yi)作為混凝(ning)土樓(lou)板(ban)(ban)的(de)受拉鋼筋,可(ke)(ke)(ke)以(yi)使(shi)(shi)樓(lou)板(ban)(ban)的(de)剛(gang)度增(zeng)強(qiang),而且(qie)使(shi)(shi)得鋼筋和混凝(ning)土的(de)用量明顯減少。壓(ya)型(xing)板(ban)(ban)表面壓(ya)紋使(shi)(shi)樓(lou)承(cheng)板(ban)(ban)與混凝(ning)土之間(jian)產生大的(de)結(jie)合力,使(shi)(shi)二(er)者形成整體,再配合上(shang)加勁肋,使(shi)(shi)得有高強(qiang)承(cheng)載(zai)力。還(huan)(huan)可(ke)(ke)(ke)以(yi)作為性(xing)模板(ban)(ban),懸(xuan)挑的(de)長(chang)度可(ke)(ke)(ke)根據(ju)樓(lou)承(cheng)板(ban)(ban)的(de)截面特性(xing)來定。為了防(fang)止(zhi)懸(xuan)挑板(ban)(ban)的(de)開(kai)裂,需在(zai)支(zhi)座處(chu)依結(jie)構工程師的(de)設計配上(shang)負筋。而且(qie)都是經過固(gu)定滅火(huo)系(xi)統及耐火(huo)構件(jian)質量檢(jian)測中心的(de)耐火(huo)檢(jian)測,具有防(fang)火(huo)的(de)特性(xing)。