橋梁加固方法彙總及注意事項!跟小編一起來看看吧:
01橋麵補強層加固法
將jiang原yuan橋qiao麵mian鋪pu裝zhuang全quan都dou鑿zao除chu或huo鑿zao毛mao,然ran後hou加jia鋪pu一yi定ding厚hou度du的de補bu強qiang層ceng,以yi增zeng大da主zhu梁liang有you效xiao高gao度du及ji改gai善shan橋qiao梁liang荷he載zai橫heng向xiang分fen布bu能neng力li,從cong而er提ti高gao單dan梁liang承cheng載zai能neng力li或huo橋qiao梁liang結jie構gou整zheng體ti承cheng載zai能neng力li。
02粘貼鋼板加固法
是以樹脂粘結鋼板與混凝土的結構加固法,其施工快速、現(xian)場(chang)無(wu)濕(shi)作(zuo)業(ye)或(huo)僅(jin)有(you)抹(mo)灰(hui)等(deng)少(shao)量(liang)濕(shi)作(zuo)業(ye),對(dui)生(sheng)產(chan)和(he)生(sheng)活(huo)影(ying)響(xiang)小(xiao),且(qie)加(jia)固(gu)後(hou)對(dui)原(yuan)結(jie)構(gou)外(wai)觀(guan)和(he)原(yuan)有(you)淨(jing)空(kong)無(wu)顯(xian)著(zhu)影(ying)響(xiang)。但(dan)加(jia)固(gu)效(xiao)果(guo)在(zai)很(hen)大(da)程(cheng)度(du)上(shang)取(qu)決(jue)於(yu)膠(jiao)粘(zhan)工(gong)藝(yi)與(yu)操(cao)作(zuo)水(shui)平(ping),適(shi)用(yong)於(yu)承(cheng)受(shou)靜(jing)力(li)作(zuo)用(yong)且(qie)處(chu)於(yu)正(zheng)常(chang)濕(shi)度(du)環(huan)境(jing)中(zhong)的(de)受(shou)彎(wan)或(huo)受(shou)拉(la)構(gou)件(jian)的(de)加(jia)固(gu)。
03加大截麵加固法
也(ye)稱(cheng)為(wei)外(wai)包(bao)混(hun)凝(ning)土(tu)加(jia)固(gu)法(fa),是(shi)用(yong)增(zeng)大(da)混(hun)凝(ning)土(tu)結(jie)構(gou)物(wu)的(de)截(jie)麵(mian)麵(mian)積(ji)和(he)配(pei)筋(jin)進(jin)行(xing)加(jia)固(gu)的(de)一(yi)種(zhong)方(fang)法(fa)。這(zhe)種(zhong)加(jia)固(gu)方(fang)法(fa)要(yao)求(qiu)被(bei)加(jia)固(gu)的(de)橋(qiao)梁(liang)下(xia)部(bu)結(jie)構(gou)能(neng)夠(gou)承(cheng)受(shou)更(geng)多(duo)的(de)自(zi)重(zhong),能(neng)夠(gou)提(ti)供(gong)更(geng)高(gao)的(de)承(cheng)載(zai)力(li)。通(tong)常(chang)情(qing)況(kuang)下(xia),以(yi)加(jia)厚(hou)橋(qiao)而(er)飯(fan)或(huo)加(jia)大(da)主(zhu)粱(liang)的(de)梁(liang)肋(lei)寬(kuan)度(du)為(wei)主(zhu)。
04錨噴混凝土加固法
從隧道施工中轉化而來的加固方法,主要用於因支點截麵尺寸偏小而導致的抗剪強度不足的混凝土梁的加固維修。
05粘貼碳纖維增強塑料加固法
tanxianweijuyougaoqiangdu,caizhiqing,naifushideyoudian。cifacaiyongzhuanmendeshuzhijiangtanxianweizhantieyuhunningtujiegoushoulabiaomian,tanxianweiyuyuanjiegouxingchengxindeshoulizhengti,tanxianweiyugangjingongtongchengshouhezai,jiangdilegangjinyingli,congershijiegoudadaolejiaguhebuqiangxiaoguo。
06體外預應力加固法
體ti外wai預yu應ying力li結jie構gou與yu體ti內nei預yu應ying力li結jie構gou本ben質zhi的de區qu別bie在zai於yu體ti外wai預yu應ying力li結jie構gou的de預yu應ying力li筋jin布bu置zhi在zai主zhu體ti結jie構gou之zhi外wai,因yin體ti外wai預yu應ying力li索suo通tong常chang為wei由you多duo根gen鋼gang絞jiao線xian組zu合he成cheng的de集ji中zhong鋼gang索suo,故gu稱cheng為wei體ti外wai預yu應ying力li索suo。體ti外wai預yu應ying力li加jia固gu通tong常chang是shi在zai梁liang底di或huo梁liang側ce下xia部bu增zeng設she預yu應ying力li加jia勁jin鋼gang絲si索suo或huo預yu應ying力li粗cu鋼gang筋jin補bu強qiang並bing分fen別bie錨mao固gu在zai梁liang的de兩liang端duan,通tong過guo設she置zhi一yi定ding的de聯lian結jie構gou件jian使shi預yu應ying力li拉la杆gan與yu梁liang體ti構gou成cheng一yi個ge析xi架jia體ti係xi,成cheng為wei一yi次ci超chao靜jing定ding結jie構gou,施shi加jia體ti外wai預yu應ying力li,抵di消xiao部bu分fen恒heng載zai應ying力li,起qi到dao卸xie載zai的de作zuo用yong,從cong而er較jiao大da提ti高gao橋qiao梁liang結jie構gou的de承cheng載zai能neng力li。
07增加受力構件及改變結構體係
當dang橋qiao梁liang承cheng載zai力li不bu足zu或huo因yin種zhong種zhong原yuan因yin使shi橋qiao梁liang遭zao到dao破po壞huai時shi,通tong過guo一yi定ding的de工gong藝yi及ji結jie構gou措cuo施shi,可ke以yi在zai原yuan有you結jie構gou上shang增zeng加jia新xin的de受shou力li構gou件jian,從cong而er提ti高gao結jie構gou的de承cheng載zai力li。改gai變bian結jie構gou體ti係xi主zhu要yao是shi利li用yong梁liang的de連lian續xu作zuo用yong或huo梁liang、板組合作用及拱梁組合作用改變結構的受力體係,改善結構的受力狀況,以提高橋梁承受荷載的能力。
08增加橫向聯係加固法
gaifangfashitongguozengsheqiaolianghengxianglianxi,yigaishanshangbujiegoudehezaihengxiangfenbuguilv,congerdadaotigaojiegouzhengtichengzainenglidejiagufangfa。yibanyongyuwuneihenglianghuoshaoneihengliangdeT型(xing)截(jie)麵(mian)及(ji)工(gong)字(zi)形(xing)截(jie)麵(mian)梁(liang)式(shi)橋(qiao),工(gong)程(cheng)上(shang)常(chang)在(zai)相(xiang)鄰(lin)主(zhu)梁(liang)間(jian)增(zeng)設(she)現(xian)澆(jiao)混(hun)凝(ning)土(tu)橫(heng)梁(liang)或(huo)鋼(gang)橫(heng)梁(liang)來(lai)提(ti)高(gao)橫(heng)向(xiang)抗(kang)彎(wan)剛(gang)度(du)。該(gai)技(ji)術(shu)的(de)缺(que)點(dian)是(shi)會(hui)對(dui)原(yuan)結(jie)構(gou)造(zao)成(cheng)一(yi)定(ding)程(cheng)度(du)的(de)損(sun)傷(shang),對(dui)於(yu)配(pei)筋(jin)較(jiao)為(wei)複(fu)雜(za)的(de)區(qu)域(yu)或(huo)構(gou)件(jian),不(bu)宜(yi)采(cai)用(yong)該(gai)方(fang)法(fa)加(jia)固(gu)設(she)計(ji),以(yi)免(mian)增(zeng)加(jia)加(jia)固(gu)後(hou)的(de)安(an)全(quan)隱(yin)患(huan)。
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