柱粘(zhan)鋼加(jia)(jia)(jia)固(gu)(gu)(gu)工(gong)(gong)程注意(yi)事項一(yi)、前期準備1.嚴(yan)格(ge)審查(cha)設(she)(she)(she)(she)計(ji)文件，確保加(jia)(jia)(jia)固(gu)(gu)(gu)方案符(fu)合《混凝土結構加(jia)(jia)(jia)固(gu)(gu)(gu)設(she)(she)(she)(she)計(ji)規范》（GB50367）要求(qiu)，嚴(yan)禁擅自修改(gai)加(jia)(jia)(jia)固(gu)(gu)(gu)參數。2.選用Q235及(ji)(ji)以(yi)級鋼材，厚度(du)(du)宜(yi)為5-12mm，膠(jiao)(jiao)粘(zhan)劑須(xu)具(ju)備的膠(jiao)(jiao)性能指標，并(bing)提(ti)供型(xing)式檢(jian)驗(yan)報告。3.施工(gong)(gong)前應(ying)(ying)(ying)(ying)清除(chu)混凝土表面(mian)粉(fen)刷(shua)層(ceng)，剔除(chu)疏松(song)部分，露出(chu)堅實基面(mian)，平整(zheng)度(du)(du)偏差(cha)應(ying)(ying)(ying)(ying)≤3mm/m。二(er)、施工(gong)(gong)工(gong)(gong)藝控(kong)(kong)制(zhi)1.鋼板切割應(ying)(ying)(ying)(ying)采用機械加(jia)(jia)(jia)工(gong)(gong)，打磨至露出(chu)金屬光澤，接觸面(mian)粗糙度(du)(du)Ra≥30μm。2.配膠(jiao)(jiao)需嚴(yan)格(ge)按配比稱(cheng)量，采用攪拌器混合均勻(yun)，現配現用，30分鐘內完成涂刷(shua)。3.涂膠(jiao)(jiao)應(ying)(ying)(ying)(ying)雙(shuang)(shuang)面(mian)施膠(jiao)(jiao)，膠(jiao)(jiao)層(ceng)厚度(du)(du)控(kong)(kong)制(zhi)在(zai)2-3mm，采用梅花形布點(dian)加(jia)(jia)(jia)壓，壓力保持0.3-0.5MPa，24小時內不得擾動。三(san)、質量控(kong)(kong)制(zhi)要點(dian)1.粘(zhan)結面(mian)積合格(ge)率(lv)應(ying)(ying)(ying)(ying)≥95%，空(kong)鼓(gu)部位需鉆孔(kong)注膠(jiao)(jiao)修補，單處(chu)空(kong)鼓(gu)面(mian)積≤100cm2。2.固(gu)(gu)(gu)化(hua)后采用錘擊法檢(jian)測(ce)(ce)，粘(zhan)結密(mi)實區(qu)域(yu)應(ying)(ying)(ying)(ying)達90%以(yi)上，必要時進(jin)行拉拔試驗(yan)。3.外露鋼板應(ying)(ying)(ying)(ying)進(jin)行3道防(fang)銹(xiu)處(chu)理(li)（環(huan)氧富鋅底漆+云鐵中間漆+氟碳面(mian)漆），漆膜(mo)總厚度(du)(du)≥250μm。四、安全(quan)與驗(yan)收1.高(gao)空(kong)作業(ye)需搭設(she)(she)(she)(she)雙(shuang)(shuang)排腳(jiao)手架，設(she)(she)(she)(she)置防(fang)墜網(wang)，施工(gong)(gong)區(qu)域(yu)設(she)(she)(she)(she)置警(jing)戒(jie)線。2.驗(yan)收時應(ying)(ying)(ying)(ying)提(ti)供材料(liao)合格(ge)證、粘(zhan)結強度(du)(du)檢(jian)測(ce)(ce)報告、隱蔽工(gong)(gong)程記錄及(ji)(ji)影像資料(liao)。3.加(jia)(jia)(jia)固(gu)(gu)(gu)后1年內應(ying)(ying)(ying)(ying)進(jin)行2次定期檢(jian)查(cha)，重點(dian)監測(ce)(ce)膠(jiao)(jiao)層(ceng)有無(wu)開裂、鋼板銹(xiu)蝕等情況。（注：全(quan)文約(yue)400字(zi)，符(fu)合規范要求(qiu)，涵蓋關(guan)鍵控(kong)(kong)制(zhi)環(huan)節）

粘(zhan)(zhan)鋼(gang)(gang)(gang)加(jia)(jia)固(gu)(gu)橋(qiao)梁施(shi)(shi)(shi)工(gong)(gong)(gong)技術要(yao)點(dian)及注意事項(xiang)一、前期(qi)(qi)準備與設(she)(she)計1.結構評估：需對橋(qiao)梁現(xian)有(you)(you)損傷(shang)(shang)（裂縫、腐蝕等(deng)）進(jin)行(xing)(xing)詳細(xi)檢測(ce)，承載力(li)(li)不(bu)足部位需優先修(xiu)復。2.參數設(she)(she)計：根據受力(li)(li)需求(qiu)計算鋼(gang)(gang)(gang)板(ban)厚(hou)度(du)、尺寸及布(bu)置(zhi)(zhi)方(fang)式，建議采用(yong)(yong)(yong)有(you)(you)限元軟件輔(fu)助(zhu)驗(yan)算。3.材料選(xuan)(xuan)擇：優先選(xuan)(xuan)用(yong)(yong)(yong)Q345及以級(ji)鋼(gang)(gang)(gang)板(ban)，配(pei)套結構膠須具備抗老化(hua)(hua)、耐疲勞(lao)性(xing)能，并提(ti)供第三方(fang)檢測(ce)報告(gao)。二、關(guan)鍵施(shi)(shi)(shi)工(gong)(gong)(gong)控制1.界面(mian)處(chu)理-混(hun)凝土基(ji)面(mian)：打磨(mo)至(zhi)骨料外露，剔除疏松層后(hou)吹凈(jing)浮塵(chen)，含水率≤6%-鋼(gang)(gang)(gang)板(ban)處(chu)理：噴(pen)砂除銹Sa2.5級(ji)，表(biao)面(mian)粗糙度(du)40-70μm，擦拭去油2.膠粘(zhan)(zhan)施(shi)(shi)(shi)工(gong)(gong)(gong)-采用(yong)(yong)(yong)雙組分(fen)膠時嚴格按(an)配(pei)比混(hun)合(he)，現(xian)配(pei)現(xian)用(yong)(yong)(yong)-涂膠厚(hou)度(du)2-3mm，采用(yong)(yong)(yong)點(dian)涂+刮涂結合(he)工(gong)(gong)(gong)藝，膠層飽滿無氣泡(pao)3.加(jia)(jia)壓固(gu)(gu)定-使(shi)用(yong)(yong)(yong)膨脹螺栓+夾具雙重固(gu)(gu)定，壓力(li)(li)保(bao)持0.2-0.3MPa-固(gu)(gu)化(hua)(hua)期(qi)(qi)間(jian)嚴禁(jin)擾(rao)動，養護時間(jian)按(an)膠粘(zhan)(zhan)劑(ji)說明書延(yan)長30%三、質量管(guan)控要(yao)點(dian)1.驗(yan)收標(biao)準：粘(zhan)(zhan)結面(mian)積≥95%，空(kong)鼓區域(yu)單處(chu)≤30cm2且總占比≤5%2.檢測(ce)方(fang)法(fa)：采用(yong)(yong)(yong)錘擊法(fa)初檢，部位使(shi)用(yong)(yong)(yong)超(chao)聲波探傷(shang)(shang)復核3.防(fang)腐處(chu)理：環(huan)氧富鋅底漆(qi)（80μm）+云鐵中間(jian)漆(qi)（120μm）+氟碳(tan)面(mian)漆(qi)（60μm）四、特殊注意事項(xiang)1.環(huan)境控制：施(shi)(shi)(shi)工(gong)(gong)(gong)溫度(du)5-35℃，相對濕度(du)≤85%，雨雪天禁(jin)止施(shi)(shi)(shi)工(gong)(gong)(gong)2.動載影響：交(jiao)通繁(fan)忙路(lu)段宜采用(yong)(yong)(yong)分(fen)幅(fu)施(shi)(shi)(shi)工(gong)(gong)(gong)，設(she)(she)置(zhi)(zhi)臨時支撐體系3.焊接(jie)作業(ye)：需在(zai)膠層固(gu)(gu)化(hua)(hua)后(hou)實施(shi)(shi)(shi)，采用(yong)(yong)(yong)跳焊工(gong)(gong)(gong)藝控制溫升≤60℃加(jia)(jia)固(gu)(gu)后(hou)應設(she)(she)置(zhi)(zhi)長期(qi)(qi)監測(ce)點(dian)，重點(dian)觀(guan)測(ce)鋼(gang)(gang)(gang)板(ban)端部錨固(gu)(gu)區及接(jie)縫處(chu)應力(li)(li)變化(hua)(hua)，建議每2年進(jin)行(xing)(xing)專項(xiang)檢查維(wei)護。施(shi)(shi)(shi)工(gong)(gong)(gong)過程須嚴格執行(xing)(xing)JGJ/T271-2012規(gui)范要(yao)求(qiu)，確保(bao)結構安全和使(shi)用(yong)(yong)(yong)壽命(ming)。

框架柱粘(zhan)鋼(gang)(gang)加(jia)(jia)固(gu)(gu)是提高結構(gou)(gou)(gou)承(cheng)載力的(de)常用(yong)方法，需(xu)(xu)(xu)(xu)嚴格遵(zun)(zun)循技術規范，以下為關鍵注(zhu)意事項：**1.原結構(gou)(gou)(gou)評估(gu)(gu)與處(chu)理**-加(jia)(jia)固(gu)(gu)前需(xu)(xu)(xu)(xu)檢(jian)測混凝(ning)土強度(du)(du)（≥C15）、裂縫(feng)(feng)寬度(du)(du)（≤0.3mm）及鋼(gang)(gang)筋銹(xiu)蝕(shi)情(qing)況，嚴重(zhong)缺陷需(xu)(xu)(xu)(xu)先(xian)修復。-清除柱表面(mian)粉刷(shua)層至堅實基面(mian)，四角(jiao)打磨成(cheng)R≥20mm圓角(jiao)，露筋部位需(xu)(xu)(xu)(xu)做防(fang)銹(xiu)處(chu)理。**2.材料控(kong)制(zhi)**-鋼(gang)(gang)板(ban)優(you)先(xian)選用(yong)Q235B或(huo)Q345B，厚度(du)(du)4-8mm，需(xu)(xu)(xu)(xu)經噴(pen)砂除銹(xiu)（Sa2.5級）并涂刷(shua)防(fang)銹(xiu)底(di)漆。-結構(gou)(gou)(gou)膠須符合GB50728標準，膠現(xian)場拉拔強度(du)(du)≥3.0MPa，保(bao)質期內使(shi)用(yong)。**3.施(shi)工(gong)(gong)工(gong)(gong)藝(yi)要(yao)點(dian)**-采(cai)用(yong)'先(xian)焊接后(hou)粘(zhan)貼'工(gong)(gong)藝(yi)時，焊縫(feng)(feng)距(ju)膠縫(feng)(feng)應＞100mm，梁面(mian)粘(zhan)鋼(gang)(gang)加(jia)(jia)固(gu)(gu)，避免熱影響區重(zhong)合。-涂膠厚度(du)(du)2-3mm，加(jia)(jia)壓至0.2-0.3MPa并保(bao)持24小時，冬季(ji)施(shi)工(gong)(gong)需(xu)(xu)(xu)(xu)延(yan)(yan)長固(gu)(gu)化時間。**4.節點(dian)處(chu)理**-柱頂/底(di)端鋼(gang)(gang)板(ban)應延(yan)(yan)伸至相(xiang)鄰梁板(ban)，采(cai)用(yong)化學錨栓輔助(zhu)固(gu)(gu)定（間距(ju)≤300mm）。-轉角(jiao)部位采(cai)用(yong)L型包鋼(gang)(gang)，拐角(jiao)處(chu)設置(zhi)加(jia)(jia)勁肋，避免應力集中。**5.質量控(kong)制(zhi)與驗收(shou)**-空鼓面(mian)積≤5%且單處(chu)≤100cm2，超聲波檢(jian)測合格率需(xu)(xu)(xu)(xu)達95%以上。-加(jia)(jia)固(gu)(gu)后(hou)24h內禁止(zhi)擾動，7天后(hou)進行荷載試驗，變(bian)形量應＜L/500。**6.特(te)殊(shu)環境應對**-濕(shi)度(du)(du)＞85%時需(xu)(xu)(xu)(xu)采(cai)取除濕(shi)措施(shi)，溫(wen)度(du)(du)低于5℃應使(shi)用(yong)低溫(wen)固(gu)(gu)化膠。-對可能存在腐(fu)蝕(shi)的(de)環境，鋼(gang)(gang)板(ban)表面(mian)需(xu)(xu)(xu)(xu)做三布五油(you)防(fang)腐(fu)處(chu)理。施(shi)工(gong)(gong)完(wan)成(cheng)后(hou)應建立定期檢(jian)查(cha)制(zhi)度(du)(du)，重(zhong)點(dian)關注(zhu)膠層老化及鋼(gang)(gang)板(ban)銹(xiu)蝕(shi)情(qing)況，建議每5年進行評估(gu)(gu)。遵(zun)(zun)循'強節點(dian)、弱構(gou)(gou)(gou)件'原則，確(que)保(bao)加(jia)(jia)固(gu)(gu)體系與原有結構(gou)(gou)(gou)協同(tong)工(gong)(gong)作。