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1、空心楼板工程HollowFloorSlabWorlks本工程采用500×500×300薄壁方箱。Willusethincubetankof500×500×300forthisproject.1、施工流程constructionprocedures施工工艺流程如下:Theconstructionprocedureswillbeasfollows:安装模板梁、板底、肋间钢筋安装搭设施工便道架设混凝土输送管道板面钢筋安装采取抗浮措施薄壁箱体安装划线定位混凝土养护隐蔽工程验收混凝土浇筑拆除模板Formworkinstallation-settingout-rebarbind
2、ingforbeam,slab—thinwallboxinstallation—anti-floatingmeasurements—rebarforboxsurface—erectionofconstructionwalkway-erectionofconcretetube—acceptanceofconcealedworks—pouringconcrete—concretecuring—formworkremoval薄壁方箱现浇混凝土空心楼盖工艺流程constructionproceduresforcast-insituhollowslabofthinwallcu
3、betank2、薄壁方箱质量要求QualityRequirements1)箱体应具有可靠的密封性。箱体外表面不得有孔洞和影响混凝土形成空腔的其它缺陷。Thetankbodyshouldbeinfeasiblesealing,whoseoutsidelookshavenohollowsortheotherdefectstoimpacttheconcretequality.2)箱体尺寸应符合设计要求,其偏差应符合表一的规定:Theboxsizeshouldmeetthedesignrequirements,thedeviationshouldbeconsistentwi
4、ththeprovisionsofthefollowingTable:项目Description允许偏差(mm)deviationpermission量具scale检验方法testway边长sidelength0,-20钢尺Steelruler在试件两端对应点之间量测一次,计算尺寸误差高度height±5钢尺Steelruler在试件两端对应点之间量测一次,计算尺寸误差表面平整度levelling5靠尺和塞尺Guidingtuleandfillergauge在试件表面量测,取最大空隙值3)箱体的竖向抗压荷载不应小于1000N,侧向抗压荷载不应小于800N。Theve
5、rticalcompressiveloadshouldnotbelessthan1000N,lateralcompressionloadshouldnotbelessthan800N.3、施工控制重点keypointsinconstructioncontrol1)保证箱体不致破损的措施measurestopreventtankleakage①薄壁箱在装卸,搬运,叠堆时应小心轻放,堆放场地要平整,箱体下要垫方木,严禁抛掷,吊运安装时用专用吊篮吊运,严禁用缆绳直接绑扎薄壁箱进行吊运.吊到安装位置后应及时安放,不宜用叠层。Takecarewhenhandling,tran
6、sportingandstackingthethin-walltank.②薄壁方箱在安装过程中在已安装完成的箱体顶上用40厚宽400长4000的木板铺设走道,安装一排铺设一条,待安装完成后布板面钢筋,边布板筋边将木板取走,板钢筋绑扎完成后,将木板重新铺设在钢筋网片上,楼面混凝土浇筑时工人踩在木板上,振动机等工具安放在木板上,以防止破坏箱体。Intheinstallationprocess,ontopofthefinishedbody,tolayawoodcatwalkof40thick,width400,length4000,fortheworkerstogotop
7、reventthedestructionofthebox..Whentheinstallationiscomplete,theboardsremoved,③对于施工过程中被破坏的箱体,要及时安排人员更换或采用胶带将坏处密封。Forthedestructionedtankbodyintheconstructionprocess,shouldbepromptlyarrangeforreplacementorusingtapetosealthedisadvantages.④预留、预埋设施宜布置在楼盖结构的楼板实心区域、肋宽范围内。当预留、预埋设施无法避开薄壁方箱时,可