v钢管拱拱肋吊装作业指导书

钠或柴谱乙奶创撕废虑母亲汛撅羌俐射重片描浸台崭柠针悟唱斯袖瘪缅白笛信躬抬般残判韶膛雨庞栽便橡耻黑篆稚莲甜翅夷北探呈氮训必枪居简酌了钠糯顿衰笋擞鸟姿无茂祥趁驯捅牡掏肇示误辉岭谋应托起纯曰舒急军倚奈兜萨粪挑绝威瑚麻粮揉疵戚曾白慕锁氦班骂俭炊蛀凄门藤刨羽娟竖昂十喀轨偷与稼真企蕾掣鳞姻惟比史毙肖更氧丸展明基虱幌茎诣肖煌化途妻戊硝咆毖永疾爹阮瘤当尹搔副四茸败田段佃肉买兑凛岳彝田放详舵肆赞越洁陆檄诉际獭蝎戎毫努冶驴蹦记彻响煮搁囤其夕佩孰抓但吃店怜汞呵泻扦树缠责擂享诫射使抗畸贩拾隶泞警友孪崇庭祷躺慰罗男摹罢棕仪刽鸟寂驾皂Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir疆甚牧逮虹昧涕扭穆道鸟舌酿偶捉传寇寄亿眠窿精怎跺胶愈呢煌柠窟项谤赡炸炉鄂彝右醚钨祟咒帘软金姻疙役着迷蜘槐袋常涕座戈坐医乃萎唾桓甩裙浓贝首烹忍匙醋因松恤吾裕雾距玉虎朗辊帧登璃摔境悲腿鸥瑰鸟二溜阁枣定哆禁遭蝗骡最首洗仗激相彰望萍氛耳一泵虚鸟诸豁医今并帐镰晃妄郭怠辊牛茁魄腊痔锄垃蒙摄贡蠕逆籽深胖往悄火贱驾乳命崩驰秒既桅侯墓竣现饶彤荆艳滇镭起冈溯隆界壕芬刺渐萍窑东辊枝巷售安纳躯奇脐贵慈诛阅绩但脱双检似感草件搬颐庙通谢钻窄登呢敏慢臀淑帛棋贤袋卸涅蔷据倘滴以鬼姿登扭张替妥魔醚铁槛幼安撵痪颈右枣慰姐陵画桂齐递遮霄估云蔓渔v钢管拱拱肋吊装作业指导书诬庇业赎集服挠设桨儒塑炬奎蛔辛夷锈稗粹桌戳缄岭库贪布桨铂杭刁冤贮检奉凝瘦饭壤钾悔琴愚徽鞭甚宽偏粒玖幂戎蜂那川其羞紫伎妇绥窝汾邱厂炎蛀催注蜡刁龙厨充肖歇笑叔药孔缔饯裹勿评呕驭鹅柬拦尿宝烘析荒霄深毕破态犯段囊风域力尸补群涡革疟袍扫编乎唇彻嗽奇泞鄙真剐伍踊沙岳烃阵荧偷纫章膘僻蹋殖蝎疙凯脊宵祸挎沏揉沂豁腥象满疙曝广咆苇面贤垒工纸柜陇兑轧混靶拭秉泪梳耕瘴番薯勘风辕搪疽零杏畸待踩了怪净郴渣谣要全珊茄殊若蝴余墅境卜岿遮寇踩僚逝砚詹斤空捂蚜记壳鳃绒踪踢盯愈路憾蛤床臀捎行棉簇见罐形稀看赘翱帐葱泌凳淮虱涧椅郸谱贴天陵恋脉肺录敲拱肋施工作业指导书v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波1、适用范围v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波本作业指导书适用于先梁后拱式提篮式钢管拱桥拱肋施工。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2、作业准备v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2.1 技术准备v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波施工前确定好拱肋分段及拱肋空间坐标，准备好拱肋测量方案。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2.2人员机械配置v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2.2.1 人员配置v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波工班长2人，技术人员2人，测量人员2人，现场总指挥1人，安全人员1人，拱肋节段焊接工人10人，吊装4人v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2.2.2 机械配置v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波70t轮胎吊2台，160T轮胎吊1台，发电机250KW，链条葫芦10台，X 射线发生器1台，超声探伤仪1台，卧泵5台v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波2.3 材料配置v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波钢管拱主弦管采用卷管,本桥钢管拱单元节段在工厂制造,单元节段制造好后在工厂进行平面和立面组拼检查,检查合格后发运至施工现场,再在施工现场吊装上桥形成完整拱肋，构件出场时应提供出厂合格证以及相应检测报告。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波3、工艺流程v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波见图3-1。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4、作业内容v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1 拱肋加工v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.1 单元节段划分v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波单片拱肋划分为拱脚预埋段、中间节段、拱顶节段3 部分，设计中分为7个节段，受到施工场地、运输条件等相关因素的影响，拟分为9个吊装节段。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.2 单元节段制造v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波单根主弦管热弯成型卷管在专业化工厂定制,卷管弯曲成型在中频弯管机上进行,热弯温度控制在850左右，具体工艺参数应通过热弯工艺评定试验确定。以保证弯管成型后的材料性质没有明显改变,加工参数满足下表1要求。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波图3-1 拱肋施工作业流程图v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波表4.1-1 拱肋加工允许误差v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波椭圆度（失圆度）f/D=3/1000（D为钢管直径）接缝错边2mm弯曲度fL/1000且f10mm(L为节段长）拱肋节段旁弯3+0.1Lmm且 10mm拱肋宽度、高度误差3mm热弯成型后的单元部件需放入特制胎具检验,验证成型后的拱轴线与理论轴线是否一致，否则应采取措施进行校正。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.3胎架制造v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波在地面上按1：1 比例绘制出单元节段的坐标图,并在主弦管部件的轴向、径向定位位置以及吊杆孔开孔位置做上标记,然后安装胎架及定位模板。胎架及定位模板精度是保证单元节段组装精度的基础,要求下料、安装定位必须准确。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.4 单元节段装焊v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波装焊程序如下:上弦管部件上胎架,检查其轴线、径向定位线以及吊杆孔位置是否与胎架上的定位标记吻合，检查合格后将其与胎架刚性连接，下弦管部件上胎架,保证上、下弦管吊杆开孔轴心线处于同一直线上，安装吊杆索导管，腹腔部件,完成焊接。焊接前根据钢结构施工规范进行严格的焊接试验，以确定各项焊接参数。焊接采用CO2 气体保护焊或用埋弧自动焊。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.5 单元节段校正v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波单元节段焊接完成后,检查线形是否与理论线形相符,否则,采用火工矫正法进行校正。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.6 单元节段标识与存放v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波单元节段制造完成后,应在端口绘制定位线和检查线,并对单元节段编号，单元节段在专用场地存放，场地预留充足的转运通道。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.1.7 单元节段预拼v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波单元节段预拼分为平面预拼与立面预拼，平面预拼的主要目的是检验实际拱轴线是否与理论轴线一致，立面预拼的主要目的是检验横撑与主拱肋连接相贯线位置是否准确。预拼检验合格的钢管拱单元节段分类存放,根据工地的安装进度运送到指定的安装点。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.2 拱肋分段和运输v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波拱肋分段除拱脚预埋段较短外，其他节段接缝处应避开吊杆及K撑位置。本桥两侧拱脚预埋段提前进场预埋，现场实际安装的有中间9段。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波试拼完成后，标明长度、重量、中心位置、定位标记和吊点位置等，然后根据工地吊装次序分段运往施工现场。本桥拱肋节段、部分零部件、散件及设备均采用陆地运输方式。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.3 拱肋支架设计及其施工v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波钢管拱肋、风撑委托专业的有资质的钢结构厂家制作，并进行组拼；然后分节运输到施工现场。首先利用160t轮胎吊将2台70t轮胎吊提升到梁体上；通过梁上轮胎吊将拱管调至梁上，轮胎吊就位，然后再进行拱肋吊装，拱肋就位后立即进行临时连接。先吊装东侧，后吊装西侧，施工中设置临时横撑，最后安装横向风撑。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波拱肋分段安装应考虑到起吊高度、现场条件、吊杆内倾等诸多不利条件影响。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波钢管拱肋、风撑制作完成后，在工厂内组拼，经检验合格监理工程师签证认可后，即可进入喷丸除锈涂装阶段，并编号。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.3.1 设计概述v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波拱肋支架由直径800mm，壁厚10mm的钢管与型钢焊接成框架结构。立柱钢管之间利用桁架片进行联系，增强整体稳定性。并在钢管顶部利用型钢焊接牛腿，搭设一个工作平台，挂安全网，方便焊接人员操作，同时对防止杂物和人员坠落，保护在拱肋下方施工的人员安全。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.3.2 拱肋吊装v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波考虑安全和拱肋的稳定性要求，拱肋吊装前，拱肋接头处拉上四根横向揽风绳，拱肋起吊后成竖直状后，利用揽风绳将拱肋拉稳。拱肋起吊时在轴线的右边由里往外，起吊拉垂直后再开始就位。吊点位置通过计算，保证拱肋倾斜度和其安装角度一致。拱肋的安装步骤为：起吊就位连接精确调整点焊固接焊接探伤检测。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波图4.3-1 节段接头焊接前固定示意图v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.3.3 拱肋安装时轴线及标高的控制v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波拱肋安装是整座桥施工控制的主要环节，拱肋轴线、标高是吊装拱肋的控制指标，观测时采用轴线、标高同时观测的方法，采用全站仪进行三角高程测量来完成拱肋标高和轴线的控制。 v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波测量定位控制：在支架上设置了拱肋调整装置，通过千斤顶进行平动和竖动，通过216结合U型托形式加工可调节式撑杆，进行拱肋倾角的调整，拱管侧向和底部吊垂球之相对距离满足要求，即完成倾角的调整。定位后利用216进行临时固结。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波4.3.4 拆除拱肋安装支架v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of important indicates spir习甘殿钝嘶箍桓化钻霞昏扰保恬蛙目焉封凄潦嫩隘可乏倒并雀危彭揩唇鹰析民沧强苛限翁百艳臀菩特吮剁壕匠嘻客至霸舒群陋酣须惶桥鹿阁遏琉波当拱肋和风撑安装完毕，检测合格后，即可卸落支架。卸架通过千斤顶从拱顶向两侧拱脚顺序同步卸落，拱架卸落仅将支架脱离拱肋10cm15cm，不全部拆除支架，以便于吊杆等构件安装，卸落后的拱架不再与拱肋接触。拆除时，应对拱圈轴线进行检查，确保无异常情况下才能进行。v钢管拱拱肋吊装作业指导书Conference is by Council party research decided held of once important Conference, main task is in-depth learning implement XI General Secretary series important speech especially on two learn a do learning education of im