大模内置板外保温施工方案.doc
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1、Manipulator is now used as a industrial robots in use, the control objectives often appear often in industrial automation. Industrial automation technology has gradually matured, as mature a technology line has been rapid development in industrial automation as a separate subject. Manipulator applic
2、ation began to filter into welding, logistics, mechanical processing, and other industries. Especially at high or very low temperatures, full of poisonous gases, high radiation case, robot in similar circumstances showed great use also brings great convenience to the staff. Precisely because of this
3、 robot to get peoples attention began to be a high degree of development. Labor rates, working conditions, labor intensive aspects of promoting development. Both at home and abroad to develop the PLC (programmable logic controller) is in various special circumstances and under special conditions set
4、 for mechanical devices. Now turned on the development of the microelectronics automatic control technology and the rapid development of the trains, the success of PLC hardware software and simulation control win big and successful development, now continues to develop as a factory automation standa
5、rds. Because robots are good development of the technology makes a good optimization of productive capital, and robot shows this unique advantages, such as: has good compatibility, wide availability, hardware is complete, and programming that can be mastered in a short time, so in the context of ind
6、ustrial PLC applications became ubiquitous. Manipulator in many developed country agriculture and industry has been applied, such as the use of mechanical harvesting large areas of farmland, repeated operations on the high-speed line that uses a robotic arm, and so on. Today, the high level of autom
7、ation combined with restrictions on the manipulator development level is slightly lower than the international. The design is mainly arm welding machine by PLC Automation control. This of design let designers on in school by learn of has a must of consolidation, understand has some usually didnt opp
8、ortunities awareness in world range within some leading level of knowledge has has must awareness, hope designers can in yihou of design in the can success of using in this design in the proceeds of experience 1.2 manipulator in both at home and abroad of research profile automation mechanical arm r
9、esearch began Yu 20th century medium-term, after years with with computer and automation technology of development, Makes mechanical arm on the Grand stage of industrial automation and shine, gradually became an industrial evaluation standards, and its importance can be seen. Now original robotic ar
10、m spent most of mass production and use on the production line, which is programmed robotic arm. As the first generation of manipulator position control systems main features, although not back several generations that can detect the external environment, but can still successfully complete like wel
11、ding, painting, delivery as well as for materials simple movements. Second generation mechanical arms are equipped with sensors and manipulators have the environment there is a certain amount of sense, when the mechanical arm is to use the program as a basis. Difference is that the robot begandEPS钢丝
12、网架板现浇混凝土外墙外保温系统技术方案 目 录一工程概况二外墙外保温施工工艺三质量保证措施四实现质量目标措施五技术组织措施六. 材料节约措施七安全及文明施工的技术组织措施八. 其他注意事项一工程概况中泰世纪花城三期续建工程,位于洛阳市涧西区丽春西路中泰世纪花城内,由十五栋高层、小高层建筑组成,建筑层数为十一、十六层,结构形式为剪力墙结构,使用年限50年,,保温面积36000。(1) 建筑饰面为外墙面砖(2)中泰世纪花城三期续建工程外墙外保温体系选用:外墙剪力墙采用现浇钢丝网架聚苯乙烯板外墙外保温体系(02J121-1-D系列)。二.外墙外保温施工工艺(一)、施工依据: 国家有关过程施工规范和规
13、定:外墙外保温建筑构造(一)(021211)外墙外保温工程技术规程(1442004)河南省居住建筑节能设计标准(410622005)建筑外墙保温技术导则(0012005)建筑工程施工质量验收统一标准;建设工程安全生产管理条例;建筑施工手册(二)、施工做法(1)、施工工艺流程外墙钢筋、保温板隐检通过验收绑扎砂浆垫块固定舒乐保温板结构墙体合模结构墙体砼浇筑拆模板、提升承重架至结构完成修补穿墙孔处保温层进行界面处理拉毛贴灰饼、冲筋抹第一遍抗裂砂浆抹第二遍抗裂砂浆刮水泥腻子、检查平整度刷养护液验收刷外墙涂料。(2)、结构部分1施工准备1.1 材料 1)钢筋加工成型:根据设计要求的规格尺寸,预先成型外墙
14、钢筋;2)加工制作钢模板;3)根据设计的层高、门窗洞口位置,加工各种规格的保温板(50mm厚EPS聚苯板,见图1),按编号运送现场,并码放整齐;4)根据设计图纸要求,预制50mm50mm15mm带铁丝的水泥砂浆垫块;5)加工制作L型锚固筋,其直径为6,圆钢长150mm, 90弯钩长30mm,穿过保温板部分刷防锈漆两道;6)加工制作U型锚固筋,其直径为6,圆钢长200mm,90弯钩长150mm,穿过保温板部分刷防锈漆两道。1.2 作业条件1)待绑扎钢筋位置的基层清扫干净;2)墙身、门窗洞口、模板线,并将预留伸出搭接钢筋处的松散混凝土剔凿干净。2. 施工操作要点2.1绑扎钢筋1)按设计图纸要求绑扎
15、墙体钢筋,绑扎钢筋时严禁碰撞预埋件,若碰动应按设计位置重新固定牢固;2)为保证外墙模板间距准确,将梯形钢筋外侧的钢筋短筋伸出5cm,穿过保温板部分刷防锈漆两道。2.2 外墙外保温安装1)采用48脚手架管及1010木方沿外墙搭设操作平台,平台面与首层基底面相差的高度应根据外墙模板高度确定;2)凝土保护层厚度要求,在外墙钢筋外侧绑扎预先制作好的水泥砂浆垫块,每块外墙保温板内不少于6块;外墙钢筋的内侧钢筋按间距小于600mm,呈梅花状绑扎水泥砂浆垫块;3)将外墙阳角处两块保温板拼接就位,确认保温板水平和垂直度符合要求后,在保温板阳角处附加钢丝角网,角网宽度不小于200mm,在阳角处用火烧丝绑扎牢固,
16、同时用L型锚固筋按600mm600mm间距锚固,锚固筋穿过保温板部分刷防锈漆两道(见图2); 4)外墙外保温板按编号就位后,将L形锚固筋按垫块位置穿过保温板,用火烧丝将钢丝网和墙体钢筋绑扎牢固;两块保温板接缝处,板间应平整,拼接密实,除需附加连接平网外,还应采用U形锚固筋穿过保温板,用火烧丝将板缝附加网片和钢丝网与墙体钢筋绑扎牢固(见图3);5)根据设计的窗口尺寸,在现场用钢锯锯出所需形状尺寸,要求切锯平直,将在现场加工完毕的窗口保温板安装到相应位置,窗台处附加钢丝网,搭接长度不小于200 mm;6)安装时侧面波浪纹波口朝外,保证面层抹灰与保温板粘结牢固; 7)由于外墙装饰檐和空调板与顶板的标
17、高不同,所以施工时将该处保温板断开,预留贴模钢筋,根据预留钢筋位置适当剪断钢丝网,保证预留钢筋卧入钢丝网内,待外保温面层抹灰时,在被剪断的钢丝网处贴补钢丝网附加层,如图4所示。外墙装饰檐和空调板可在结构施工层高于其上三层后即可插入施工。2.3 模板安装 1)钢筋和保温板通过工程监理、甲方代表的验收,并办理隐检手续;2)按弹出的墙线位置安装大模板;3)安装外墙外侧大模板前,须在现浇混凝土墙体根部或保温板外侧采取可靠的定位措施,以防模板挤靠保温板。采用脚手管及木方搭设的平台安装首层外模,安装上层模板时,利用下一层外墙螺栓孔挂三角平台架,模板放在三角平台上,将模板就位,穿螺栓紧固校正,连接必须严密、
18、牢固,以免出现错台和漏浆;4)安装大模板的穿墙螺栓时,严禁直接捅入,否则保温板容易破坏而造成跑浆,影响混凝土的浇筑质量。正确的做法为,从内模向外模用钢筋将穿墙螺栓孔处的保温板戳破,然后再穿穿墙螺栓。2.4 混凝土浇筑1)外墙砼浇筑前,新旧混凝土接茬处应均匀浇筑3050mm厚与墙体混凝土成分相同的水泥砂浆或减石子混凝土。为保护保温层,可用镀锌铁皮作成盖帽,将外保温层和外墙模板一起扣住,以防浇筑砼时破坏保温板,严禁砼泵管对准保温板浇筑砼;2)在浇筑和振捣混凝土时,混凝土对底部保温板产生较大的侧压力,如果保温板强度不足,保温板会遭到破坏,有必要对每层底部保温板承压进行验算。楼层层高为2.7米,采用坍
19、落度为60mm的普通混凝土,浇筑速度为2.5m/h,浇筑入模温度为15。则根据钢筋混凝土工程施工及验收规范中提出的新浇混凝土作用在模板上的最大侧压力计算公式,计算如下: Ks1,Kw1,Pm1=4+1500* Ks * Kw *V1/3/(T+30)=49.24KN/m2 , Pm2=25H=25*2.7=67.5KN/m2 ,按取最小值,故最大侧压力为49.24 KN/m260 KN/m2(保温板抗压标准值),经计算,按照施工规范浇筑和振捣,保温板不会遭到破坏。3)混凝土应分层浇筑,每层浇筑厚度控制在500mm左右,一次浇筑的高度不宜超过1m;振捣时要快插慢拔,振点适当加密,分布要均匀,振动
20、时间不宜过长;混凝土下料点应分散布置,浇筑墙体的混凝土应连续进行,时间间隔不宜超过2小时;振捣棒严禁斜插接触保温板,以免破坏保温板;并及时清理落地灰;4)在洞口处浇筑混凝土时,应沿门窗洞口两侧同时下料,使洞口两侧浇筑高度一致,振捣棒应距洞口边30cm以上,以防洞口变形; 5)施工缝宜留置在门洞口过梁跨度1/3范围内,亦可留在纵横墙的交接处,施工缝的表面与梁轴线或板面垂直,不得留斜茬,接茬处混凝土应加强振捣,保证接茬混凝土密实;6)外墙砼浇筑到楼层顶标高时,在外墙外侧留出企口,企口宽3050mm,厚度与楼层楼板相同,其作用是便于外墙外保温板的安装固定和浇筑混凝土时不漏浆(见图5);7)墙体混凝土
21、浇筑振捣完毕后,整理上口甩出的钢筋,并用木抹子按标高线或以模板上口为准,将墙上口表面混凝土找齐、抹平。2.5 拆模1)在常温下墙体混凝土强度大于1.0Mpa,冬期施工时混凝土掺防冻剂,其强度高于4.0Mpa时方可拆模;2)拆外墙外侧模板,再拆外墙内侧模板,模板拆除后应及时用干硬性砂浆捻塞墙体中的孔洞,填满后孔洞处所缺保温板须用保温材料补齐;3)拆除模板时,将对应三角承重架悬挂、支撑位置处的保温板,按预制好的支撑托底盘大小切削成矩形方孔,为悬挂承重架做好准备。4)提升承重架时,应先拧松螺栓,然后提吊起外挂承重架,同时摘下支撑托,再取出穿墙螺栓,拆除的螺栓随承重架运到上一层悬挂处以备安装。安装顺序
22、与拆除相反,承重架的每个穿墙螺拴应安装牢固,确保安全。2.6 墙体养护常温施工时,模板拆除后12h内喷水养护,养护时间不少于7d,次数以保持混凝土湿润为准;冬期施工时,应定点、定时测定混凝土的养护温度并做记录,拆模后混凝土表面应覆盖塑料薄膜。2.7 质量标准1)墙体混凝土振捣密实均匀,墙面和接茬处应光滑平整;墙面不得有孔洞露筋及灰渣等缺陷,墙体混凝土允许偏差见表1;2)EPS聚苯板必须是阻燃聚苯板,外面覆以50mm*50mm的2mm组焊而成的冷拔钢丝网片;板的规格、尺寸和形状与设计相符,棱角不应有破损现象;出厂前应有合格证及相应的检测报告。保温板的安装允许偏差及检验项目见表2、表3;墙体混凝土
23、允许偏差 表1 项目允许偏差(mm)检查方法轴线偏移3尺量层高5水准仪或尺量全高20水准仪或尺量截面尺寸2尺量墙面垂直度32m靠尺板预埋件中心偏移3尺量预留洞中心偏移3尺量保温板安装允许偏差 表2 项目允许偏差(mm)检验方法立面平整5用2m托线板检查表面平整4用2m靠尺和楔尺检查阴、阳角垂直4用2m托线板检查阴、阳角方正5用2m靠尺和楔尺检查保温层厚度2用卷尺检查EPS聚苯板检验项目 表3检验项目标准值密度,kg/m320.0抗压强度,Kpa60导热系数,W/mK0.041尺寸稳定性,%5断裂弯曲负荷,N15(摘自:GB10801-89)2.8 应注意的质量问题 1)严格按工艺要求设置墙体钢
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