梁(liang)(liang)植(zhi)筋(jin)加固(gu)(gu)技術解析梁(liang)(liang)植(zhi)筋(jin)加固(gu)(gu)是建筑工(gong)程中常用(yong)的結(jie)(jie)構補強(qiang)(qiang)技術，通過(guo)在混(hun)凝土(tu)梁(liang)(liang)中植(zhi)入(ru)鋼(gang)(gang)筋(jin)增強(qiang)(qiang)其(qi)抗(kang)彎、抗(kang)剪(jian)能力，適(shi)用(yong)于(yu)(yu)承(cheng)載(zai)力不足或結(jie)(jie)構損傷的修復。施(shi)工(gong)流程：1.定(ding)位(wei)鉆(zhan)孔：根據設(she)計圖(tu)紙(zhi)定(ding)位(wei)，使用(yong)鉆(zhan)頭(tou)鉆(zhan)孔，孔徑(jing)通常為鋼(gang)(gang)筋(jin)直(zhi)徑(jing)的1.2-1.5倍(bei)。2.清(qing)孔處(chu)理：采用(yong)高壓氣(qi)泵與鋼(gang)(gang)刷清(qing)除孔內(nei)粉塵，確保膠體粘結(jie)(jie)強(qiang)(qiang)度。3.注膠植(zhi)筋(jin)：注入(ru)高強(qiang)(qiang)環(huan)氧植(zhi)筋(jin)膠至孔深2/3處(chu)，將除銹(xiu)后(hou)的鋼(gang)(gang)筋(jin)旋轉插入(ru)，膠體溢出為合(he)格標準。4.固(gu)(gu)化(hua)養(yang)護(hu)：靜(jing)置(zhi)固(gu)(gu)化(hua)24-48小時，期間嚴禁擾動(dong)，環(huan)境溫度低于(yu)(yu)5℃需延長養(yang)護(hu)時間。技術優勢：?承(cheng)載(zai)力提升(sheng)顯(xian)著，單根Φ20鋼(gang)(gang)筋(jin)抗(kang)拔力可達150kN以(yi)上(shang)?對原結(jie)(jie)構損傷小，無需大面積開(kai)鑿?可靈(ling)活調(diao)整植(zhi)入(ru)角度，適(shi)應(ying)復雜節點(dian)加固(gu)(gu)?耐久性(xing)(xing)優異(yi)，環(huan)氧膠體耐酸堿、抗(kang)老(lao)化(hua)性(xing)(xing)能突出應(ying)用(yong)場景：①老(lao)舊(jiu)建筑功能改造（如商場改賓館）②梁(liang)(liang)體開(kai)裂、鋼(gang)(gang)筋(jin)銹(xiu)蝕等病害修復③后(hou)結(jie)(jie)構抗(kang)震(zhen)加固(gu)(gu)④工(gong)業廠房(fang)荷載(zai)升(sheng)級改造質量(liang)控制要點(dian)：-鉆(zhan)孔深度須大于(yu)(yu)15d（d為鋼(gang)(gang)筋(jin)直(zhi)徑(jing)）-膠體抗(kang)壓強(qiang)(qiang)度應(ying)≥60MPa，現場做拉拔試驗-植(zhi)筋(jin)間距≥5d，邊距≥3d-潮濕(shi)環(huan)境需采用(yong)水下植(zhi)筋(jin)膠該技術相比外包(bao)鋼(gang)(gang)加固(gu)(gu)方案(an)可節省30%造價，且能保持建筑空間完整性(xing)(xing)，已成為GB50367《混(hun)凝土(tu)結(jie)(jie)構加固(gu)(gu)設(she)計規范(fan)》推(tui)薦工(gong)法。實際(ji)工(gong)程中需結(jie)(jie)合(he)結(jie)(jie)構檢測數據，由機構進行專項(xiang)設(she)計以(yi)確保加固(gu)(gu)效(xiao)果。

加(jia)固(gu)(gu)(gu)植(zhi)筋(jin)(jin)(jin)工(gong)(gong)程(cheng)(cheng)技(ji)術解析(xi)植(zhi)筋(jin)(jin)(jin)加(jia)固(gu)(gu)(gu)是建筑結(jie)構(gou)(gou)(gou)加(jia)固(gu)(gu)(gu)中廣泛應(ying)(ying)用(yong)的(de)錨固(gu)(gu)(gu)技(ji)術，通過植(zhi)入鋼(gang)(gang)筋(jin)(jin)(jin)增強(qiang)混(hun)(hun)凝土結(jie)構(gou)(gou)(gou)的(de)承載力(li)和連(lian)(lian)接性能，適用(yong)于梁柱節點(dian)加(jia)固(gu)(gu)(gu)、新增構(gou)(gou)(gou)件連(lian)(lian)接等場景。一、工(gong)(gong)藝流程(cheng)(cheng)1.定位放(fang)線(xian)：依據(ju)設(she)計圖紙定位，誤(wu)差(cha)控制(zhi)在±3mm內(nei)。2.鉆(zhan)孔(kong)施(shi)(shi)工(gong)(gong)：采(cai)用(yong)電錘(chui)鉆(zhan)頭(tou)，孔(kong)徑(jing)(jing)應(ying)(ying)比(bi)鋼(gang)(gang)筋(jin)(jin)(jin)直(zhi)(zhi)徑(jing)(jing)大(da)4-6mm（如Φ12鋼(gang)(gang)筋(jin)(jin)(jin)需(xu)(xu)Φ16孔(kong)），孔(kong)深(shen)需(xu)(xu)達到(dao)15-20倍鋼(gang)(gang)筋(jin)(jin)(jin)直(zhi)(zhi)徑(jing)(jing)。3.清(qing)孔(kong)處理：使用(yong)壓縮空(kong)氣(qi)清(qing)孔(kong)3次以上(shang)，孔(kong)壁粉塵殘留量需(xu)(xu)＜1mm，濕度(du)(du)(du)控制(zhi)≤6%。4.注(zhu)膠植(zhi)筋(jin)(jin)(jin)：采(cai)用(yong)壓力(li)注(zhu)膠器注(zhu)入植(zhi)筋(jin)(jin)(jin)膠，注(zhu)膠量需(xu)(xu)達到(dao)孔(kong)體積(ji)的(de)2/3，緩慢旋轉植(zhi)入鋼(gang)(gang)筋(jin)(jin)(jin)至設(she)計深(shen)度(du)(du)(du)。5固(gu)(gu)(gu)化(hua)(hua)養護：膠常(chang)溫(wen)固(gu)(gu)(gu)化(hua)(hua)需(xu)(xu)≥24小時(shi)，B級膠需(xu)(xu)≥48小時(shi)，固(gu)(gu)(gu)化(hua)(hua)期間禁止擾(rao)動。二、關鍵(jian)控制(zhi)點(dian)1.材料(liao)選擇：優先選用(yong)改(gai)性環(huan)(huan)氧(yang)類(lei)膠，抗拉(la)強(qiang)度(du)(du)(du)≥18MPa，彈性模量≥1500MPa。2.鉆(zhan)孔(kong)參數：垂(chui)直(zhi)(zhi)度(du)(du)(du)偏差(cha)≤2°，孔(kong)位偏差(cha)≤5mm，孔(kong)壁完(wan)整度(du)(du)(du)檢測(ce)(ce)采(cai)用(yong)內(nei)窺鏡。3.植(zhi)筋(jin)(jin)(jin)深(shen)度(du)(du)(du)：按《混(hun)(hun)凝土結(jie)構(gou)(gou)(gou)加(jia)固(gu)(gu)(gu)設(she)計規(gui)范(fan)》GB50367要求，C30混(hun)(hun)凝土中Φ20鋼(gang)(gang)筋(jin)(jin)(jin)植(zhi)入深(shen)度(du)(du)(du)≥350mm。4.質量檢測(ce)(ce)：固(gu)(gu)(gu)化(hua)(hua)后需(xu)(xu)進行非(fei)破損拉(la)拔試驗(yan)，檢測(ce)(ce)值應(ying)(ying)≥設(she)計值的(de)1.3倍。三、注(zhu)意事(shi)項(xiang)1.避開(kai)原(yuan)結(jie)構(gou)(gou)(gou)主筋(jin)(jin)(jin)，鉆(zhan)孔(kong)遇(yu)鋼(gang)(gang)筋(jin)(jin)(jin)應(ying)(ying)立即調整孔(kong)位2.冬季施(shi)(shi)工(gong)(gong)需(xu)(xu)采(cai)用(yong)低(di)溫(wen)固(gu)(gu)(gu)化(hua)(hua)型膠粘劑(ji)（5-15℃適用(yong)）3.植(zhi)筋(jin)(jin)(jin)后24小時(shi)內(nei)環(huan)(huan)境溫(wen)度(du)(du)(du)應(ying)(ying)保持5-35℃4.重要結(jie)構(gou)(gou)(gou)部位需(xu)(xu)增加(jia)20%的(de)隨機抽檢數量植(zhi)筋(jin)(jin)(jin)工(gong)(gong)程(cheng)(cheng)的(de)質量直(zhi)(zhi)接影響結(jie)構(gou)(gou)(gou)安(an)全(quan)，施(shi)(shi)工(gong)(gong)過程(cheng)(cheng)應(ying)(ying)嚴格執行《建筑結(jie)構(gou)(gou)(gou)加(jia)固(gu)(gu)(gu)工(gong)(gong)程(cheng)(cheng)施(shi)(shi)工(gong)(gong)質量驗(yan)收規(gui)范(fan)》，建議委托檢測(ce)(ce)機構(gou)(gou)(gou)進行現場拉(la)拔試驗(yan)，確保錨固(gu)(gu)(gu)力(li)滿足設(she)計要求。

建(jian)筑物植(zhi)(zhi)筋(jin)(jin)(jin)加(jia)固(gu)(gu)工(gong)程(cheng)(cheng)施(shi)(shi)工(gong)流程(cheng)(cheng)可(ke)分為(wei)以下步驟，需(xu)(xu)嚴(yan)(yan)格(ge)(ge)按(an)照規范操(cao)作(zuo)(zuo)以確(que)保(bao)(bao)結構安(an)全(quan)：1.**前期(qi)準備(bei)**-根據(ju)設計(ji)圖紙進行技(ji)術(shu)交底(di)，梁加(jia)固(gu)(gu)植(zhi)(zhi)筋(jin)(jin)(jin)公司，明確(que)植(zhi)(zhi)筋(jin)(jin)(jin)位(wei)置、規格(ge)(ge)及(ji)數量。-驗收材料：檢(jian)查鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)（需(xu)(xu)符合HRB400級及(ji)以上(shang)）、植(zhi)(zhi)筋(jin)(jin)(jin)膠(jiao)(jiao)(jiao)（需(xu)(xu)具備(bei)抗拉拔檢(jian)測(ce)(ce)報告(gao)）的(de)合格(ge)(ge)證及(ji)性能(neng)指(zhi)標。-清理(li)(li)施(shi)(shi)工(gong)區域，移除(chu)障礙物，確(que)保(bao)(bao)工(gong)作(zuo)(zuo)面平整(zheng)。2.**定(ding)位(wei)放(fang)線**-使用(yong)(yong)(yong)(yong)(yong)全(quan)站儀或(huo)鋼(gang)(gang)(gang)(gang)尺按(an)設計(ji)坐標定(ding)位(wei)植(zhi)(zhi)筋(jin)(jin)(jin)點，用(yong)(yong)(yong)(yong)(yong)墨線標記并復核偏(pian)(pian)差（允(yun)許(xu)±5mm）。-避(bi)開原結構鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)，必要(yao)時采(cai)用(yong)(yong)(yong)(yong)(yong)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)探(tan)測(ce)(ce)儀輔(fu)助(zhu)定(ding)位(wei)。3.**鉆(zhan)孔(kong)**-采(cai)用(yong)(yong)(yong)(yong)(yong)電(dian)錘或(huo)水鉆(zhan)成(cheng)孔(kong)，孔(kong)徑為(wei)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)直徑的(de)1.5-2倍（如Φ20鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)鉆(zhan)孔(kong)Φ28-32mm），孔(kong)深(shen)≥15d（d為(wei)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)直徑）。-孔(kong)位(wei)垂直度(du)(du)偏(pian)(pian)差≤2°，孔(kong)內(nei)粉塵(chen)需(xu)(xu)清理(li)(li)。4.**清孔(kong)處理(li)(li)**-用(yong)(yong)(yong)(yong)(yong)氣(qi)(qi)泵或(huo)毛刷清除(chu)孔(kong)內(nei)灰塵(chen)，反復清刷不少于3次，確(que)保(bao)(bao)孔(kong)壁無殘留(liu)。-使用(yong)(yong)(yong)(yong)(yong)或(huo)酒(jiu)精擦拭孔(kong)壁，提升膠(jiao)(jiao)(jiao)體粘結力(li)。5.**注膠(jiao)(jiao)(jiao)植(zhi)(zhi)筋(jin)(jin)(jin)**-將植(zhi)(zhi)筋(jin)(jin)(jin)膠(jiao)(jiao)(jiao)注入(ru)孔(kong)內(nei)至2/3深(shen)度(du)(du)，緩慢旋轉插(cha)入(ru)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)（膠(jiao)(jiao)(jiao)體充盈度(du)(du)≥90%），避(bi)免氣(qi)(qi)泡(pao)殘留(liu)。-調整(zheng)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)外露長(chang)度(du)(du)至設計(ji)要(yao)求，采(cai)用(yong)(yong)(yong)(yong)(yong)臨時支撐固(gu)(gu)定(ding)，防(fang)(fang)止移位(wei)。6.**固(gu)(gu)化養護(hu)**-根據(ju)膠(jiao)(jiao)(jiao)粘劑說明書控(kong)制固(gu)(gu)化時間（常溫下通常24-48小時），期(qi)間禁止擾動鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)。-低溫或(huo)潮濕環(huan)境(jing)需(xu)(xu)延長(chang)養護(hu)期(qi)，必要(yao)時采(cai)取(qu)(qu)加(jia)熱措施(shi)(shi)。7.**質量檢(jian)驗**-隨(sui)機抽取(qu)(qu)3%植(zhi)(zhi)筋(jin)(jin)(jin)進行非破損抗拔試驗（拉拔力(li)≥設計(ji)值的(de)1.2倍）。-檢(jian)查膠(jiao)(jiao)(jiao)體飽滿度(du)(du)及(ji)鋼(gang)(gang)(gang)(gang)筋(jin)(jin)(jin)錨固(gu)(gu)深(shen)度(du)(du)，不合格(ge)(ge)者需(xu)(xu)返工(gong)。施(shi)(shi)工(gong)全(quan)程(cheng)(cheng)需(xu)(xu)做好安(an)全(quan)防(fang)(fang)護(hu)，嚴(yan)(yan)格(ge)(ge)監(jian)測(ce)(ce)環(huan)境(jing)溫濕度(du)(du)，確(que)保(bao)(bao)植(zhi)(zhi)筋(jin)(jin)(jin)膠(jiao)(jiao)(jiao)性能(neng)穩定(ding)。完(wan)(wan)成(cheng)后提交完(wan)(wan)整(zheng)的(de)檢(jian)測(ce)(ce)報告(gao)及(ji)施(shi)(shi)工(gong)記錄，作(zuo)(zuo)為(wei)驗收依據(ju)。