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ruhejikuaiyouhaoanzhuangyuzhihunningtugoujian

fabushijian: 2020-11-09 16:10:00 liulan: 389

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bansuizhezhuangpeishijianzhudexunmengfazhan,yuzhigoujiananzhuangduiwuruyuhouchunsunbanbuduanyongxianhefazhanzhuangda,danyouyu***jishugongrenchubeibuzu、peixungenbushang、guanlibudaoweidengyuanyindaozhileyuzhigoujiananzhuangfangmianchuxianhebaolulebushaowenti。zaiyuzhigoujiananzhuangguochengzhong,diaozhuangqianzhunbeibuchongfen,guochengkongzhibuzixi,gehuanjiejianchabudaoweideng,jiuhuizaochenganzhuangzhiliangchuxianwenti,shenzhizaochengjiegouanquandengfangmiandeyinhuan。yuzhigoujiananzhuangqianduigoujianjianzhuangjiehemiandejianchabudaoweijiukenengchuxianliangleiyichangqingkuang,yishigoujianwufaanzhuang,piruxiacenggoujianhuoxianjiaocengshenchugangjinweizhipianchaguoda、guanjiangtaotongdusaihuobuchuizhi、goujianzishenchicunchaochadengdouhuizaochenggoujianwufaanzhuang;ershigoujianbunenganzhuang,piruxiacenggoujianhuoxianjiaocengshenchugangjinguoduan,bunengchadaotaotongdeguidingweizhi,gangjinjiuwufaxingchengkekaoyouxiaodelianjie(tu1),zaipirugoujianliefeng、quelengdiaojiaoyanzhong,douhuizaochenggoujianbunenganzhuang。


火狐体育tu1 shenchugangjinzhangduanbuyi


diehebandiaozhuangshi,ruguodulizhichengxitongbulaogu,biaogaoweijinxingyangekongzhi,zaidiehebandiaozhuangwanchenghou,jiukenenghuizaochengdiehebandimiansijiaobiaogaochaocha,jijianzhujiegouyanshoujifangwuzhuangxiudailaihendamafan;zhichengbulaoguhaihenyoukenengzaochenganquanshigu。yuzhiqiangbananzhuanghou,buzhongshianzhuangweizhidezhunquexing,duichuizhidubujinxingyangedejianchayanshou,rucizhucengjinxingdiaozhuangshigong,jiuhuizaochengjiaodadewuchaleiji,jiyingxiangjianzhuzhiliang,yehuiduiqitadehouxuxiangguan***deshigongzaochengyingxiang。neime,ruhenengzuodaojikuaiyouhaodizhengqueanzhuangyuzhihunningtugoujianni?


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shouxian,duiyuzhigoujiananzhuangquanguochengjinxingyangebakong,shibaozhengyuzhigoujiananzhuangzhiliangdeqianti,yeshijianzaohegeyouzhidezhuangpeishihunningtujianzhudejichu。


(1)预制构件进场检查作业要点  


1)预制构件到场后,需对预制构件规格、数量、尺寸、外观质量及伸出钢筋、预埋件、预留孔洞等进行检查验收(图2)。


tu2 yuzhiloutiyumaijianjiancha


2)预制构件表面应光洁平整,不得出现缺棱、掉角、蜂窝、麻面等严重质量缺陷(图3)。


tu3 yuzhigoujianbiaomianchuxianfengwo、jiazhadengyanzhongquexian


3)需采取光照、注水、通气、敲击等方法对预制构件灌浆套筒的通畅情况进行检查(图4)。


火狐体育tu4 tongqijianceguanjiangtaotongtongchangqingkuang


(2)预制构件安装前准备作业要点


1)安装部位检查。对预制构件所要连接钢筋的规格、数量、位置、伸出长度进行检查(图5)。还要检查混凝土安装结合面清理、凿毛、湿润等是否满足要求(图6)。


图5 伸出钢筋定位模板


图6 结合面清理、凿毛和湿润检查


2)设备和机具检查。预制构件吊装前,需对起重设备、吊具、吊索、索具、支撑体系部件等进行适用性、安全性、可靠性检查。起重设备等机具还应采取试运行、试吊装的方式进行检查(图7)。


tu7 yongpingmianjiashidiaojudiaozhuangdiehelouban


3)预制构件安装控制线放线。根据施工图纸弹出轴线及控制线;并根据施工楼层基准线和施工图纸进行构件位置边线的确定(图8)。对于构件边线、中心线及标高控制线等定位标识应作明显标记和区分。


tu8 yuzhigoujianweizhibianxian


(3)常用预制构件安装要点


火狐体育yuzhigoujiandiaozhuangshiyaohuanmanqidiao,daigoujianshengzhijudimian60cmgaoshilvezuotingdun,jianchadiaoguashifoulaogu,querenwuwuhoujixuzuoye。


火狐体育yuzhigoujianzaijuanzhuangweizhishangfang60cmgaozuoyoulvezuotingdun,shigongrenyuanshoufugoujian,kongzhigoujianhuanmanxialuojiuwei(tu9)。


tu9 shigongrenyuanshoufugoujiankongzhigoujianhuanmanxialuo


1)预制墙板安装要点。根据图纸及现场测定的实际标高设置标高控制垫片;墙板吊装时,必须用***吊具吊运;墙板就位后立即安装固定临时支撑,并摘除吊钩(图10);通过调节临时支撑进行墙板位置和垂直度的精确调整。


图10 临时支撑固定后摘除吊钩


2)叠合楼板安装要点。安装前要进行支撑搭设,并进行支撑顶端标高校对;


火狐体育diehebanjiuweihou,jinxingbandibiaogaohejiefenggaochadejianchajixiaohe,ruyoupianchaketongguodiaojiebanxiadekediaozhichenggaodujinxingdiaozheng(tu11)。


火狐体育tu11 dieheloubandiaozhuangjiuwei


3)预制外挂墙板安装要点。外挂墙板就位后,根据之前控制线,调整外挂


qiangbandeshuiping、chuizhijibiaogao,daidiaozhengdaoyunxupianchafanweineihoujiangluoshuanjingudaoshejiyaoqiu;waiguaqiangbancemianzhongxianjibanmianchuizhidudexiaohe,yingyizhongxianweizhudiaozheng;waiguaqiangbanshangxiaxiaozhengshi,yingyishufengweizhudiaozheng,bingyiwailimianpingzhengweizhu。waiguaqiangbanjunweidulizichengzhonggoujian,yingbaozhengbanfengsizhouweidanxingmifenggouzao(tu12)。


tu12 yuzhiwaiguabanqianganzhuangjiedian


4)预制楼梯安装要点。用长短绳索吊装楼梯,保证楼梯的起吊角度与就位


houjiaoduyizhi。weilejiaodukediaoyekeyonglianggeshoulahuludaitixiacedelianggengangsisheng(tu13);ruyouyuliuchajin,yingzhuyijiangchajinyuloutideyuliukongdongduizhunhou,jiangloutianzhuangjiuwei。


tu13 yuzhiloutidiaozhuang


(4)临时支撑支设及拆除要点


1)竖向构件的上支点宜设置在预制构件高度2/3处;竖向构件支撑在地面上的支点,应使斜支撑与地面的水平夹角保持在45°至60°之间(图14)。


tu14 yuzhijianliqiangbanzhichengtixi


2)固定竖向预制构件斜支撑的地脚,优先采用预埋方式,并注意预埋位置的准确性(图15)。


tu15 diehecengyumaizhichengdijiao


3)水平构件独立支撑的间距要严格控制,不得随意加大支撑间距,并控制好独立支撑离墙体的距离(图16),保证整个体系的稳定性。


火狐体育tu16 dulizhichengxitongdashe


4)预制构件连接部位后浇混凝土及灌浆料的强度达到设计要求后,方可拆除临时支撑系统。


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