滄州(zhou)改變結構(gou)傳力(li)途徑加(jia)固(gu)法(fa)(fa)，先(xian)切割然后(hou)(hou)(hou)增設支(zhi)點若采(cai)用(yong)(yong)(yong)濕(shi)式(shi)(shi)連接，在(zai)接點處(chu)梁及(ji)支(zhi)柱(zhu)與(yu)后(hou)(hou)(hou)澆(jiao)混(hun)凝(ning)土(tu)(tu)(tu)的接觸(chu)面(mian)，應進行(xing)(xing)(xing)鑿毛，浮渣，灑水濕(shi)潤(run)，一般以微膨脹混(hun)凝(ning)土(tu)(tu)(tu)澆(jiao)筑為宜。若采(cai)用(yong)(yong)(yong)型(xing)鋼(gang)(gang)套箍干(gan)式(shi)(shi)連接，型(xing)鋼(gang)(gang)套箍與(yu)梁接觸(chu)面(mian)間(jian)應用(yong)(yong)(yong)水泥砂漿(jiang)座漿(jiang)，待型(xing)鋼(gang)(gang)套箍與(yu)支(zhi)柱(zhu)焊牢后(hou)(hou)(hou)，再(zai)用(yong)(yong)(yong)較干(gan)硬砂漿(jiang)將(jiang)全部接觸(chu)縫(feng)隙塞緊填實(shi)；對(dui)于楔塊(kuai)(kuai)頂升法(fa)(fa)，頂升完(wan)畢后(hou)(hou)(hou)，應將(jiang)所有(you)楔塊(kuai)(kuai)焊連，再(zai)用(yong)(yong)(yong)環氧砂漿(jiang)封閉。 滄州(zhou)混(hun)凝(ning)土(tu)(tu)(tu)構(gou)件(jian)外部粘(zhan)(zhan)鋼(gang)(gang)加(jia)固(gu)法(fa)(fa) 此法(fa)(fa)施工(gong)較為簡單，但首先(xian)需要(yao)著重(zhong)注意(yi)混(hun)凝(ning)土(tu)(tu)(tu)和鋼(gang)(gang)板(ban)的表(biao)(biao)面(mian)處(chu)理，對(dui)于舊、臟嚴(yan)(yan)重(zhong)的混(hun)凝(ning)土(tu)(tu)(tu)構(gou)件(jian)的粘(zhan)(zhan)合面(mian)，應先(xian)用(yong)(yong)(yong)硬毛刷沾洗滌劑，刷除表(biao)(biao)面(mian)油(you)垢污物后(hou)(hou)(hou)用(yong)(yong)(yong)水沖(chong)洗，再(zai)對(dui)粘(zhan)(zhan)合面(mian)進行(xing)(xing)(xing)打(da)磨，除去2～3㎜厚表(biao)(biao)層，露出新面(mian)和平整(zheng)，將(jiang)粉塵干(gan)凈(jing)；對(dui)于混(hun)凝(ning)土(tu)(tu)(tu)表(biao)(biao)面(mian)較好的，則可直接對(dui)粘(zhan)(zhan)合面(mian)進行(xing)(xing)(xing)打(da)磨，去掉(diao)1～2㎜厚表(biao)(biao)層，使(shi)之平整(zheng)，清(qing)去粉塵，再(zai)用(yong)(yong)(yong)丙(bing)酮(tong)(tong)擦試(shi)(shi)表(biao)(biao)面(mian)即可；鋼(gang)(gang)板(ban)表(biao)(biao)面(mian)處(chu)理應根據(ju)其(qi)繡(xiu)蝕情況，可用(yong)(yong)(yong)噴砂、砂布、砂輪機打(da)磨，使(shi)鋼(gang)(gang)板(ban)出現金屬光澤，打(da)磨紋路盡量與(yu)受力(li)方向垂(chui)直，然后(hou)(hou)(hou)用(yong)(yong)(yong)丙(bing)酮(tong)(tong)擦試(shi)(shi)干(gan)凈(jing)。其(qi)次要(yao)注意(yi)對(dui)膠(jiao)粘(zhan)(zhan)劑的選(xuan)擇，目前國內市場建筑結構(gou)膠(jiao)粘(zhan)(zhan)劑魚龍混(hun)雜，對(dui)膠(jiao)粘(zhan)(zhan)劑的選(xuan)擇一定要(yao)慎重(zhong)。第三要(yao)注意(yi)在(zai)配膠(jiao)、粘(zhan)(zhan)貼(tie)過程(cheng)中的細節，膠(jiao)粘(zhan)(zhan)劑要(yao)嚴(yan)(yan)格按照說(shuo)明書要(yao)求的比例配制，尤其(qi)是要(yao)掌握好固(gu)化(hua)劑的用(yong)(yong)(yong)量，攪(jiao)拌要(yao)均勻，同時(shi)在(zai)粘(zhan)(zhan)貼(tie)時(shi)要(yao)保證粘(zhan)(zhan)貼(tie)面(mian)的飽滿、密(mi)實(shi)。 要(yao)注意(yi)在(zai)固(gu)化(hua)階段不能對(dui)鋼(gang)(gang)板(ban)有(you)任何擾動。

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