TANXIANWEIBUSHENGCHANCHANGJIA?HANMAJIAGUCAILIAO,JIANZHUJIAGUXINGYEDEZHIZAOZHUANJIA
1、 概述
TANXIANWEIFUHECAILIAO(Carbon Fiber Reinforced Plastic) JIAGUXIUFUHUNNINGTUJIEGOUJISHUSHIJINNIANLAIZAIFADAGUOJIAXINGQIDEYIXIANGXINXINGJIAGUJISHU, GAIXIANGJISHUSHIJIANGTANSUXIANWEIZHEIZHONGGAOXINGNENGXIANWEIYINGYONGYUTUMUGONGCHENG, LIYONGSHUZHILEICAILIAOBATANXIANWEIZHANTIEYUJIEGOUHUOGOUJIANBIAOMIAN, XINGCHENGFUHECAILIAOTI CFRP, TONGGUOQIYUJIEGOUHUOGOUJIANDEXIETONGGONGZUO, DADAODUIJIEGOUGOUJIANBUQIANGJIAGUJIGAISHANSHOULIXINGNENGDEMUDE。
2、 粘贴碳纤维布施工工艺
2. 1、 施工流程
FANGSHESHIGONGXIAN―JIMIANCHULI―SHUAMOQIDIJIAO―GUANIZI―ZHANTIETANXIANWEIBU―YANGHU―TUSHUATANXIANWEIZHUANYONGQI。
2. 2、 施工步骤
(1) YIJUSHEJIWENJIANJINXINGSHIGONGFANWEINEIDEFANGXIANZUOYE。
(2) JIANGSHIGONGQUYUNEIYONGJIAOMOJIDUIJIMIANJINXINGMOPINGCHULI, MOPINGSHIYAOJIANHUNNINGTUGUANGMIAN, BINGYONGKONGQIYASUOJIJIANGFENCHENCHUIGANJING, ZHIZHIYONGSHOUCHUMOBUZHANHUIWEIZHI。
(3) JIANGDIJIAOANBILIPEIZHIBINGJIAOBANJUNYUN。 YONGDUANMAOGUNSHUAJUNYUNTUMOZAIMOPINGBUWEI, JINGZHI 5-7 XIAOSHI, ZHISHOUCHUMOBUZHANSHOUFANGKEJINXINGXIAYIDAOGONGXU。 DIJIAOBANHELIMEICIBUYIGUODUO, YINGZUODAOSUIYONGSUIBAN, BUDESHIYONGSHIXIAODEHUANYANGSHUZHI, BANHEQIJUYINGGANJINGQINGJIE, BUDESHIYONGYIJINGUORONGJIDEMAOGUN。
(4) DAIDIJIAOGANZAOHOU, ANBILIBANHEHUANYANGNIZI, BINGDIAOHEJUNYUN, YONGNIZIGUAPINGGONGZUOMIANDEKENGCAO, YANGSHENG 5-7 XIAOSHI。
(5) ZHANTIETANXIANWEIBU
a. YONGSHAZHIDAMOYIBIANGONGZUOMIAN, BINGYONGMIANSIJIANGFENCHENCASHIGANJING。
b. SHIFANGZUOYEBIANJIEXIAN。
c. ANBILIJIANGJICENGSHUZHIJINXINGBANHEJUNYUNHOU, YONGDUANMAOGUNJUNYUNTUMOYUGONGZUOMIANSHANG。
d. JIANGTANXIANWEIBUANSHUNXUYICIZHANTIEYUGONGZUOMIAN, BINGYONGXIAOPAOGUNFANFUGUNYATANXIANWEIBUBIAOMIAN, SHITANXIANWEIBUYUGONGZUOMIANJINMIJIEHE, BUZHIYOUQIPAOCUNZAI。
e. JINGZHI 30-60 FENZHONGZAITANXIANWEIBIAOMIANZAIJUNYUNTUYICENGJINZISHUZHI。 TUMOJINZISHUZHISHI, BUDESHIZHANTIEDETANXIANWEIBUJUANQI。
(6) TANXIANWEIZAINIANTIEHOU, YANGHU 24 XIAOSHI, BUYISHITANXIANWEIBUSHOUCHAO、 SHOUZHEN,YEBUDESHOUHEZAIZHIJIECHONGZHUANGTANXIANWEIBUBIAOMIAN。
(7) 待树脂初期硬化后, 在碳纤维布表面涂刷一层碳纤维专用漆,其颜色和原来结构相同。
2. 3、 施工中应注意的事项
(1) SHIGONGYIZAI 5℃YISHANGHUANJINGWENDUTIAOJIANXIAJINXING, BINGYINGFUTAIPEITAOSHUZHIDESHIGONGSHIYONGWENDU。 DANGHUANJINGWENDUDIYU 5℃SHI, YINGSHIYONGSHIYONGYUDIWENDEPEITAOSHUZHIHUOCAIYONGSHENGWENCHULICUOSHI。
(2) ZAIBIAOMIANCHULIHEZHANTIETANXIANWEIBUQIAN, YINGANJIAGUSHEJIBUWEIFANGXIANDINGWEI。
(3) SHUZHIPEIZHISHIYINGANCHANPINSHIYONGSHUOMINGGUIDINGDEPEIBICHENGLIANGZHIYULINQIZHONG, YONGJIAOBANQIJUNYUNJIAOBANZHISEZEJUNYUN。 JIAOBANSUOYONGDERONGQINEIBUDEYOUYOUWUJIZAZHI。 YIGENJUXIANCHANGSHIJIWENDUJUEDINGSHUZHIDEMEICIBANHELIANG, BINGYANGEKONGZHISHIYONGSHIJIAN。
(4) ZHANTIEQIANBANDISHOUXIANYAODAMOPINGZHENG, CHUQUBIAOCENGFUJIANG、 YOUWUDENGZAZHI, ZHIZHIWANQUANLUCHUJIEGOUXINMIAN, HUNNINGTUBIAOMIANYINGQINGLIGANJINGBINGBAOCHIGANZAO; GANGJINLUCHUBUWEIXUZUOFANGXIUCHULI, RUSUNHUAICHENGDUYANZHONG, XUCAIQUQITACUOSHI, YIQUEBAOANQUAN; ZHUANJIAONIANTIECHUYAOJINXINGDAOJIAOCHULIDAMOCHENGYUANHUZHUANG, TUHUBANJINGBUYINGXIAOYU 20mm 。
(5) ANBILIZHUNQUEPEIZHIHAODIJIAOBINGJIAOBANJUNYUN, ZHUYIYICIDIAOHELIANGZAIKESHIYONGSHIJIANNEIYONGWAN, CHAOGUOSHIJIANDEJUEDUIBUNENGSHIYONG, YIQUEBAOZHANJIEZHILIANG; DIJIAOYINGHUAHOU,ZAIBIAOMIANYOUTUQIBUFENSHI, YAOYONGMOGUANGJIHUOSHAZHIDAGUANG。
(6) ZHANTIETANXIANWEIBUSHIYAOCONGZHONGJIANXIANGLIANGCEJINXINGZHANTIE, KEBIMIANSHIGONGSHICHANSHENGQIPAOYINGXIANGJIAGUXIAOGUO。
(7) TANXIANWEIBUPEITAOSHUZHIDEYUANLIAOYINGMIFENGCHUCUN, YUANLIHUOYUAN, BIMIANYANGGUANGZHIJIEZHAOSHE。
(8) SHUZHIDEPEIZHIHESHIYONGCHANGSUO, YINGBAOCHITONGFENGLIANGHAO, XIANCHANGSHIGONGRENYUANYINGGENJUSHIYONGSHUZHICAILIAOCAIQUXIANGYINGDELAODONGBAOHUCUOSHI。
(9) TUSHUATANXIANWEIZHUANYONGQIBIXUDENGSHUZHICHUQIYINGHUAHOUZAISHIZUO, RUBIAOMIANSHANGRENGYOUBUPING, YONGHUANYANGSHUZHISHAJIANGZUOXIBUZHAOPINGHOUZAITUSHUATANXIANWEIZHUANYONGQI。
(10) TANXIANWEIBUDESHIGONGYINGYOUSHUXISHIGONGGONGYIDEZHUANYESHIGONGDUIWUWANCHENG, BINGYINGJINGXINZUZHI、 JINGXINSHIGONG。
2. 4、 施工要点
(1) TANXIANWEIBUYINGANSHUNXUYICIZHANTIEYUGONGZUOMIAN, BINGYONGSHOUQINGYA, CAIYONGZHUANYEDEXIAOPAOGUNSHUNXIANWEIFANGXIANGCONGZHONGJIANXIANGLIANGBIANHUOYANYIBIANDUOCIGUNYA, JICHUQIPAO, SHIJINZISHUZHICHONGFENJINTOUTANXIANWEIBU。
(2) ZHANTIEDEHUNNINGTUBIAOMIANYINGDAMOPINGZHENG, CHUQUBIAOMIANFUCHENHEYOUWU, LUCHUHUNNINGTUJIEGOUXINMIAN, ZHUANJIAOZHANTIECHUYINGJINXINGDAOJIAOCHULIBINGDAMOCHENGYUANHU, YUANHUBANJINGBUXIAOYU 20mm, DUIYUHUNNINGTUBIAOMIANAOXIANBUWEIYINGYONGZHAOBUCAILIAOTIANBUPINGZHENG。
2. 5、 粘贴碳纤维布质量检验
(1) ZHONGDIANYINGJIANCHATANXIANWEIBUDECAILIAOZHILIANGHEXIANWEIBUDEZHANTIEZHILIANG, ZAISHIGONGZHIQIANYINGJIANCHAXIANWEIBUHEPEITAOJIAODECHANPINZHILIANGHEGEZHENG、 CHANPINZHILIANGCHUCHANGJIANYANBAOGAO,GEXIANGXINGNENGZHIBIAOJUNFUHEGUIFANDEYAOQIU, TANXIANWEIBUYUHUNNINGTUBIAOMIANDEZHANTIEYINGYONGXIAOCHUIQINGQINGQIAOJIDEJIANCHAFANGFA, ZONGYOUXIAOZHANJIEMIANJIJUNYINGDAYU 95%。
(2) TANXIANWEIBUKONGGUBUWEIDECHULI: TANXIANWEIBUZHANTIEWANCHENGHOU, YINGDUIKONGGUBUFENJINXINGCHULI, JINGGUOYEZHU、 ZONGJIANLIGONGCHENGSHIHESHIGONGDANWEIDEGONGTONGXIESHANG, CAIYONGDUIKONGGUBUFENYONGDAOPIANGEKAIDEFANGFAJINXINGCHULI, JUTIFANGQUWEI: XIANYONGDAOPIANDUIKONGGUBUWEIDETANXIANWEIBUGEKAI, GEKAIFANGXIANGSHUNYINGTANXIANWEIBUDEZHUXIANWEIFANGXIANG, RANHOUYONGZHUANYONGDEZHUSHEQIQIJINXINGZHUJIAO, ZHIZHITIANMAN, RANHOUYONGSHOUYAPING。
3、 ZHANTIETANXIANWEIBUJIAGUJISHUZHUYAOYOUDIANZHANTIETANXIANWEIBUJIAGUJISHU, SHIJINSHINIANZAIRIBENSHOUXIANYINGYONGHEFAZHANQILAIDE, YIYOUYIQIANDUOGEGONGCHENGSHILI。 GAIFANGFADEZHUYAOYOUDIANBIAOXIANZAI:
(1) XINGNENGWENDING, JUYOUYOULIANGDEKANGHUAXUEFUSHINENGLIHENAIJIUXINGNENG;
(2) ZHONGLIANGQING, BUZENGJIAJIEGOUJINGZAI, JUYOUJIAOGAODEQIANGDU/ZHONGLIANGBI, ZHANTIEHOUYUANJIEGOUDEZIZHONGJIJIEGOUCHICUNHUIZENGJIADEHENSHAO;
(3) QIANGDUGAO, TANXIANWEICAILIAOKANGLAQIANGDUSHIPUTONGGANGCAIDE 8 BEIZUOYOU, DANXINGMOLIANGYUGANGCAIJIEJIN, QIEJUYOUBIGANGCAIGENGHAODEKANGPILAOXINGNENG;
(4) JUYOUJIAOQIANGDEBIANXINGXINGNENG, CONGERNENGZAIGEZHONGXINGZHUANGDEJIEGOUSHANGJINXINGSHIGONG,SHIYONGMIANGUANG;
(5) RONGYISHOUGONGCAOZUO, BUXUZHUANMENJIXIESHEBEI, SHIGONGWUHUICHENHEZAOSHENGWURAN,BINGKEBUJIANDUANSHENGCHANYUNYING;
(6) SHIGONGZHILIANGYIBAOZHENG, YOUYUTANXIANWEIBUSHIROUXINGDE, JISHIBEIJIAGUDEJIEGOUBIAOMIANBUSHIFEICHANGPINGZHENG, YEJIBENKEYIDADAO 100%DEYOUXIAOZHANTIELV。
4、 粘贴碳纤维布加固技术在桥梁加固中的应用展望在过去的几十年间, 由于桥梁的设计等级偏低、 施工不当、 材料老化严重、 超载和环境恶劣等系列原因, 钢筋混凝土桥梁的损坏越来越严重,对旧危桥的维修加固已迫在眉睫。 碳纤维布具有高强、 轻质、 耐腐蚀、 非磁性, 其粘贴加固施工方便、 工期较短等优点而广受国内外关注。 由于粘贴碳纤维加固法有很多优点, 在我国, 有关部门已责成同济大学编订碳纤维布加固修补结构施工及验收规范, 随着国民经济的增长, 粘贴碳纤维加固法在桥梁加固中的应用必将有广阔的发展天地。
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