发布时间 : 星期一 文章施工电梯施工方案1更新完毕开始阅读45797b2ca5e9856a56126054
施工电梯安装拆除施工方案 目 录
一、 工程概况 ··················································································································· 2 ㈠、工程简介 ··················································································································· 2 ㈡、施工电梯简介 ··········································································································· 2 二、 电梯布置、基础验算及附墙验算 ··········································································· 2 ㈠、电梯布置 ··················································································································· 2 ㈡、基础形式 ··················································································································· 3 ㈢、基础受力验算 ··········································································································· 3 1．参数 ························································································································· 3 2．1＃施工电梯受力验算 ··························································································· 3 3．2＃施工电梯受力验算 ··························································································· 6 ㈣、附墙设计及验算 ····································································································· 10 1．附墙架的选择 ······································································································· 10 2．附墙架的连接 ······································································································· 10 3．附墙架对墙面作用力验算 ··················································································· 10 三、 安装方案 ················································································································· 10 ㈠、安装前的准备工作 ································································································· 10 ㈡、施工电梯的安装 ····································································································· 11 1．地面围栏的安装 ··································································································· 11 2．吊笼的安装 ··········································································································· 11 3．对重装置的安装 ··································································································· 12 4．将导架加高至10.5米 ·························································································· 12 5．电气系统和控制系统的安装 ··············································································· 13 6．吊笼的电力驱动升降试车 ··················································································· 13 7．导架的加高安装 ··································································································· 14 8．附墙架的安装 ······································································································· 14 9．对重系统的安装 ··································································································· 15 10．有对重施工电梯导架的再次加高安装 ····························································· 15 11．电缆导向装置的安装·························································································· 16 12．吊笼的坠落试验 ································································································· 16 ㈢、主要安装技术要求 ································································································· 16 四、 施工电梯的拆除 ····································································································· 17 五、 安全注意事项 ········································································································· 17
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施工电梯安装拆除施工方案 一、 工程概况
㈠、工程简介
杭州万新大厦工程是由杭州万通房地产开发有限公司投资兴建的集商场、办公、写字楼于一体的综合性的商业房产开发项目。工程占地面积12135平方米，包括一幢办公楼、三幢酒店式的写字楼及商场裙房部分五个单体，地下2层，地上最高23层，总建筑面积73532平方米。其中办公楼结构高100.77米，其他三幢酒店式写字楼均在58.15米～76.15米之间，属高层建筑。在结构施工阶段及装修阶段，拟采用三台施工电梯解决施工材料及人员的垂直运输。 ㈡、施工电梯简介
根据工程实际情况，在结构施工及装修施工阶段拟投入三台上海宝达工程机械有限公司生产的SCD200／200双笼施工电梯。其相关参数如下： 额定载重量（每个吊笼） 安装额定载重量 起升速度 最大附着间距 标准架设高度 吊笼内空尺寸 标准节横截面形式 标准节尺寸 安装吊杆额定起重量 2000Kg 1000Kg 40m/min 9m 150m 3.0*1.3*2.7 0.8*0.8*1.508m 200Kg 连续负载功率 40％断续负载功率 额定电流（每个吊笼） 启动电流（每个吊笼） 电力消耗（每个吊笼） 防坠安全器型号 吊笼重量 标准节重量 地面围栏重量 对重重量 7.5*2KW 10.5*2KW 45A 200A 26KVA SAJ40-0.95 1480Kg 184Kg 1260Kg 1260Kg 备注：附墙架、动力电缆、导向装置、紧固件等重量约占导架总重量的30％，用过道竖杆和过桥连杆的附墙结构增加约为导架总重量的45％。
二、 电梯布置、基础验算及附墙验算
㈠、电梯布置
考虑到工程施工实际情况，需要在D楼、C楼、B楼设置施工电梯，施工电梯预留空间大小：5500*3800，其平面布置及立面布置详见附图DT-01《施工电梯平面布置图》、DT-02《1＃施工电梯东立面图》、DT-03《1＃、2＃、3＃施工电梯南立面图》。
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施工电梯安装拆除施工方案 项 目 中 心 位 置 结 构 高 度 是否到地下室 搭 设 高 度 标 准 节数 自 由 高 度 附 着 道 数 1＃施工电梯 D楼东侧 DX10以东4050 DY6轴 92.950米 否 93.5米 62节 9米 12道 2＃施工电梯 C楼南侧 CX6以西3800 CY3以南4100 71.450米 否 72.5米 48节 9米 9道 3＃施工电梯 B楼南侧 BX6以东3250 BY3以南4100 62.450米 是 71米 47节 9米 8道 2、4、6、8、10、12、2、4、8、10、13、15、2、4、8、10、13、15、附 着 层 面 14、16、18、20、22、18、20、22 18、顶 23 搭设起始高程 -0.800米 -1.400米 -8.200米 辅助安装塔吊 2＃塔吊（FO／23C） 2＃塔吊（FO／23C） 1＃塔吊（QTZ5013） 备注：搭设高度与结构高度起始点不同，±0.000米为黄海高程8.950米。 ㈡、基础形式
本工程三步施工电梯中，除了3＃施工电梯需要下到地下室外，其他两部施工电梯都安装在地面层楼板上。每部施工电梯均不单独浇筑混凝土平台基础，1＃、2＃施工电梯是在地面层楼板上预埋铁件，将施工电梯基础底架焊接在预埋铁件上，由楼板直接承重，3＃施工电梯则安装在预埋在底板上的铁件上，由基础底板直接承重。
其预埋铁件详图详见附图DT-04《1、2＃施工电梯基础预埋铁件详图》 ㈢、基础受力验算
由于3＃施工电梯直接支撑在底板上，故无需进行受力计算，1＃、2＃施工电梯则由楼板承重，故需要进行结构受力计算。 1．参数
在进行验算时，均采用标准值（非设计值）进行计算。 C35砼：fck?23.4N/mm2 II级钢：fyk?335N/mm2 2．1＃施工电梯受力验算
⑴、梁承载力验算
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施工电梯安装拆除施工方案 考虑到满载时电梯启动停止对楼板的冲击影响，其动力系数取1.4，故荷载为： G1＝（2000*2*1.4+1480*2*1.4+1260+1260*2+184*62*1.75）*9.8＝328.1824KN （其中系数1.75代表：导架总重系数1.0，附墙架、动力电缆、导向装置、紧固件等重量约占导架总重量的30％，用过道竖杆和过桥连杆的附墙结构增加约为导架总重量的45％。）
由于1＃施工电梯轴心所在的梁长度小于DY轴方向梁长度的1／2，可以认为板的荷载传递给DX轴方向，因此在进行梁的验算时，只需要考虑梁的自重即可，则钢筋混凝土梁板自重：GK?0.5?0.3?2.85?2500?9.8?10.474KN
1＃施工电梯设置在DX10以东4050／DY6轴梁上（结构外墙面以东3800），梁截面尺寸为500*300，梁长度为2850，受拉钢筋为420，As＝1256mm2，可以认为施工电梯传递给梁的荷载为均布荷载（受力形式如下），故有：
q2850h0?300?35?265mm
??Asbh0?1256500?265fykfck?0.00948??min
则：????0.00948?33523.4?0.1357
?b?0.544?0.1357
?s?0.126 查《钢筋混凝土矩形截面受弯构件正截面受弯承载力计算系数表》得：
[M]??sfcbh0?0.126?23.4?500?26522?103.526KN?M
而此梁在施工电梯满载时所受弯矩为：
M?18ql2?18?328.1824?10.4742.85?2.852?120.646KN?M