楼梯扶手施工方案.doc
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1、Gay is now a provincial key construction project of aluminum Ltd-province with an annual output of 50,000 tons of technical innovation project of environmental protection and energy saving of electrolytic aluminum project manager. In this technological transformation projects, he has overall respons
2、ibility for the day-to-day affairs of the project. In order to ensure that southern companys control the scale of investment, strengthen field management, pay special attention to project progress, and ensure a successful operation, the overall goal. He and Engineering Department under the leadershi
3、p of all the staff in the companys technical command, on the difficulties and to overcome technical difficulties in the process, work hard, have made outstanding achievements, mainly reflected in the following aspects: first, careful organization and management achieved remarkable results. Technical
4、 innovation project of the year, started and completed a series of bids and completed to date, from production engineering to put into production after nearly a year, has achieved very significant results. A project first 56 slots from dismantling the old slot just 168 days, civil engineering, insta
5、llation, commissioning, guarantee engineering quality under the premise, on the production side transformation under difficult conditions, created the national industrys fastest speeds. II 32 large prebaked electrolytic cell on November 7 has been installed, marks has an annual production capacity o
6、f 50,000 tons of electrolytic aluminum production capacity of aluminum. Entire project almost 8 months earlier than planned, achieved the goal of production transformation benefits that year, created favorable conditions for aluminum through South. Second, effectively control the investment. Project
7、 is subject to a scientific approach to bidding, bidding to make savings of 20 million Yuan, in the implementation process of the project, every domestic prices of steel, cement and other building materials, the old buildings on the base encountered great difficulties in dealing with significant inc
8、rease in the volume of civil engineering, but through rationalization and optimization, project control in fixed investment of 350 million Yuan. Third, environmental energy-saving effect of the project. Project investment of nearly 30 million Yuan, using large prebake technology and aluminum oxide d
9、ense phase and hyper dense phase conveying technology, fluoride and other harmful gases purification efficiency of up to 98%. Compared with Soderberg cell before the modification, power consumption can be reduced by 1500 tons of electrolytic aluminum, and project environmental protection and energy
10、saving effect is obvious. Four are in a relatively short period of time to the normal production. After four months of efforts, a project has put into operation all the 54 240KA large cell into regular production, stable current channel conditions and all the economic indicators are good, current ef
11、ficiency in October had reached 93%, is close to and reach the domestic advanced level. In the case of production half of the cell, this effect can be achieved and better level in the industry. 50,000 tons of electrolytic modification process, from preliminary study to equipment selection, cost cont
12、rol, project progress, quality control and coordination among the various sub-projects and various professional, technical command under the correct leadership, both from an overall perspective, emphasis on integrity, and earnestly implement the relevant laws and regulations, strictly act according
13、to the contract. He tried to learn relevant knowledge, good style of business, operational and organizational coordination ability, project efficiency, quality and safety assurance system in place, with all units involved with the coordination and good .依据标准: 建筑工程施工质量验收统一标准 GB50300-2001 建筑装饰装修工程施工质量
14、验收规范 GB50210-2001 1.范围 本工艺标准适用于楼梯、金属栏杆木扶手和塑料扶手安装工程。2.施工准备 2.1材料及构配件:2.1.1木制扶手一般用硬杂木加工成规格成品,其树种、规格、尺寸、形状按设计要求。木材质量均应纹理顺直、颜色一致,不得有腐朽、节疤、裂缝、扭曲等缺陷;含水率不得大于12%。弯头料一般采用扶手料,以45角断面相接,断面特殊的木扶手按设计要求备弯头料。2.1.2塑料扶手(聚氯乙烯扶手料)系化工塑料产品;断面形式、规格尺寸及色彩按设计要求选用。2.1.3粘结料:可以用动物胶(鳔),一般多用聚醋酸乙烯(乳胶)等化学胶粘剂。2.1.4其他材料:木螺丝、木砂纸、加工配件。
15、2.2主要机具:2.2.1电动机具:手提电钻、小台锯。2.2.2手动工具:木锯、窄条锯;二刨、小刨、小铁刨;斧子、羊角锤、扁铲、钢挫、木挫、螺丝刀;方尺、割角尺、卡子等。2.3作业条件:2.3.1楼梯间墙面、楼梯踏板等抹灰全部完成。2.3.2金属栏杆或靠墙扶手的固定埋件安装完毕。3、操作工艺 3.1工艺流程:找位与划线 弯头配制 连接预装 固定 整修 3.2木扶手:3.2.1找位与划线:3.2.1.1安装扶手的固定件:位置、标高、坡度找位校正后,弹出扶手纵向中心线。3.2.1.2按设计扶手构造,根据折弯位置、角度,划出折弯或割角线。3.2.1.3楼梯栏板和栏杆顶面,划出扶手直线段与弯头、折弯段
16、的起点和终点的位置。3.2.2弯头配制:3.2.2.1按栏板或栏杆顶面的斜度,配好起步弯头,一般木扶手,可用扶手料割配弯头,采用割角对缝粘接,在断块割配区段内最少要考虑三个螺钉与支承固定件连接固定。大于70mm断面的扶手接头配制时,除粘结外,还应在下面作暗榫或用铁件铆固。3.2.2.2整体弯头制作:先做足尺大样的样板,并与现场划线核对后,在弯头料上按样板划线,制成雏型毛料(毛料尺寸一般大于设计尺寸约10mm)。按划线位置预装,与纵向直线扶手端头粘结,制作的弯头下面刻槽,与栏杆扁钢或固定件紧贴结合。3.2.3连接预装:预制木扶手须经预装,预装木扶手由下往上进行,先预装起步弯头及连接第一跑扶手的折
17、弯弯头,再配上下折弯之间的直线扶手料,进行分段预装粘结,粘结时操作环境温度不得低于5。3.2.4固定:分段预装检查无误,进行扶手与栏杆(栏板)上固定件,用木螺丝拧紧固定,固定间距控制在400mm以内,操作时应在固定点处,先将扶手料钻孔,再将木螺丝拧入,不得用锤子直接打入,螺帽达到平正。3.2.5整修:扶手折弯处如有不平顺,应用细木锉锉平,找顺磨光,使其折角线清晰,坡角合适,弯曲自然、断面一致,最后用木砂纸打光。3.3塑料扶手(聚氯乙烯扶手):3.3.1找位与划线:按设计要求及选配的塑料扶手料,核对扶手支承的固定件、坡度、尺寸规格、转角形状找位、划线确定每段转角折线点,直线段扶手长度。3.3.2
18、弯头配制:一般塑料扶手,用扶手料割角配制。3.3.3连接预装:安装塑料扶手,应由每跑楼梯扶手栏杆(栏板)的上端,设扁钢,将扶手料固定槽插入支承件上,从上向下穿入,即可使扶手槽紧握扁钢。直线段与上下折弯线位置重合,拼合割制拆弯料相接。3.3.4固定:塑料扶手主要靠扶手料槽插入支承扁钢件抱紧固定,折弯处与直线扶手端头加热压粘,也可用乳胶与扶手直线段粘接。3.3.5整修:粘结硬化后,折弯处用木锉锉手磨光,整修平顺。4、质量标准 4.1 本节适用于护栏和扶手制作与安装工程的质量验收。 4.2 检查数量应符合下列规定: 每个检验批的护栏和扶手应全部检查。 主控项目 4.3 护栏和扶手制作与安装所使用材料
19、的材质、规格、数量和木材、塑料的燃烧性能等级应符合设计要求。 检验方法:观察;检查产品合格证书、进场验收记录和性能检测报告。 4.4 护栏和扶手的造型尺寸及安装位置应符合设计要求。检验方法:观察;尺量检查、检查进场验收记录。 4.5 护栏和扶手安装预埋件的数量、规格、位置以及护栏与预埋件的连接节点应符合设计要求。 检验方法:检查隐蔽工程验收记录和施工记录。 4.6 护栏高度、栏杆间距、安装位置必须符合设计要求。护栏安装必须牢固。 检验方法:观察;尺量检查;手扳检查。 4.7 护栏玻璃应使用公称厚度不小于12mm的钢化玻璃或钢化夹层玻璃。当护栏一侧距楼地面高度为5m及以上时,应使用钢化夹层玻璃。
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