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PAGE/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n/r/n/r/n/r/n/r/n/r/n/r/n第8章关键施工方案/r/n /r/n/r/n36/r/n/r/n/r/n/r/n8.2/r/n塔吊专项施工方案/r/n /r/n/r/n36/r/n/r/n/r/n/r/n8.2.1/r/n塔吊选型/r/n /r/n/r/n36/r/n/r/n/r/n/r/n8.2.2/r/n吊次分析/r/n /r/n/r/n43/r/n/r/n/r/n/r/n8.2.3/r/n塔吊平面布置/r/n /r/n/r/n47/r/n/r/n/r/n/r/n8.2.4/r/n廻转塔机方案/r/n /r/n/r/n49/r/n/r/n/r/n/r/n8.2.5/r/n塔吊安装方案/r/n /r/n/r/n142/r/n/r/n/r/n/r/n8.2.6/r/n塔吊拆除方案/r/n /r/n/r/n143/r/n/r/n/r/n/r/n8.2.7/r/n群塔作业方案/r/n /r/n/r/n146/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n关键/r/n施工方案/r/n塔吊专项/r/n施工方案/r/n塔吊选型/r/n绿地东村8/r/n#地块超高层项目/r/n高度约为/r/n468/r/nm,单层面积约/r/n2700/r/nm2。本工程T1塔楼/r/n采用/r/n整体自动顶升廻转式多吊机集成运行平台系统,该体系通过支承顶升系统固定在核心筒内部,并可随楼层升高进行顶升;廻转塔机上部设置钢平台,平台上安装/r/n3/r/n部塔吊,分别是/r/n1#/r/n塔吊/r/nZSL380/r/n、/r/n3#/r/n塔吊/r/nZSL1250/r/n、/r/n6#/r/n塔吊/r/nM600D/r/n,塔吊在自身廻转半径内廻转的同时,还可通过廻转平台支承结构进行转动,/r/nT1/r/n塔楼构件吊装主要采用/r/n1#、3#、6#塔吊/r/n进行。/r/nT2/r/n、/r/nT3/r/n塔楼分别采用/r/n4#/r/n塔吊/r/nJC7027/r/n及/r/n5#/r/n塔吊J/r/nP7527/r/n进行吊装。/r/n结合本工程的实际情况及工期要求,塔吊选型拟采取以下设备:/r/n序号/r/n型号/r/n服务区域/r/n臂长/r/n端部起重量/r/n最大起重量/r/n初装高度/r/n最终/r/n安装高度/r/n1#/r/nZSL380/r/nT1/r/n50m/r/n3.8/r/nt/r/n32t/r/n一个标准节/r/n一个标准节/r/n3/r/n#/r/nZSL1250/r/n55m/r/n14.9t/r/n64t/r/n一个标准节/r/n一个标准节/r/n6/r/n#/r/nM600D/r/n50/r/nm/r/n12.3/r/nt/r/n50/r/nt/r/n一个标准节/r/n一个标准节/r/n4#/r/nJC7027/r/nT2/r/n65m/r/n2.7t/r/n16t/r/n48.7m/r/n194m/r/n5#/r/nJP7527/r/nT3、Q1/r/n60m/r/n4.5t/r/n12t/r/n53.05m/r/n201m/r/n塔吊性能/r/n参数/r/nZSL1250性能/r/n参数表/r/nZSL1250主要/r/n构件重量参数表/r/n/r/nM600/r/nD/r/n性能/r/n参数表/r/n(双倍率)/r/n(单倍率)/r/nM600D/r/n主要/r/n构件重量参数表/r/nZSL380/r/n性能参数/r/n表/r/nZSL380/r/n主要/r/n构件重量参数表/r/nJC7027/r/n性能/r/n参数表/r/nJP7527/r/n性能/r/n参数表/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n吊次分析/r/n本工程共需要使用塔吊吊次约为/r/n52061/r/n吊次,其中钢结构使用塔吊吊共需要吊次/r/n31411/r/n次,占/r/n60/r/n%;土建使用塔吊吊次/r/n15700/r/n次,占30./r/n2/r/n%;幕墙使用塔吊吊次/r/n4050/r/n次,占/r/n7.8/r/n%。将吊次按月分析如下表。/r/n序号/r/n吊装内容/r/n构件分段分节数量/r/n吊装次数/r/n备注/r/n钢结构/r/n1/r/n外框钢柱/r/n816/r/n816/r/n一件一吊/r/n2/r/n核心筒剪力墙/r/n2136/r/n2136/r/n一件一吊/r/n3/r/n楼层主梁/r/n3232/r/n3232/r/n一件一吊/r/n4/r/n楼层次梁/r/n7272/r/n3636/r/n两件一吊/r/n5/r/n水平支撑/r/n240/r/n240/r/n一件一吊/r/n6/r/n外框斜撑/r/n808/r/n808/r/n一件一吊/r/n7/r/n楼层钢梁预埋件/r/n4242/r/n101/r/n打包吊装,每层一吊次/r/n8/r/n伸臂桁架/r/n136/r/n136/r/n一段一吊/r/n9/r/n塔冠杆件/r/n240/r/n240/r/n两件一吊/r/n10/r/n压型钢板/r/n--/r/n600/r/n成捆吊装,每层6吊次/r/n11/r/n焊接工具房/r/n4/r/n404/r/n一件一吊/r/n12/r/n氧气、乙炔、/r/nCO2/r/n气/r/n/r/n303/r/n分批次吊装,平均每层/r/n3/r/n次/r/n13/r/n高强螺栓/r/n/r/n--/r/n101/r/n分批次吊装,平均每层/r/n1/r/n次/r/n14/r/n栓钉/r/n/r/n--/r/n101/r/n分批次吊装,平均每层/r/n1/r/n次/r/n15/r/n构件卸车/r/n/r/n--/r/n12038/r/n全部钢构件需要卸车至堆场区/r/n/r/n16/r/n构件转运/r/n--/r/n6019/r/n用3#塔转运至6#塔吊装的构件/r/n/r/n17/r/n其它/r/n/r/n--/r/n500/r/n其他措施如临时支撑/r/n/r/n18/r/n合计/r/n--/r/n31411/r/n土建/r/n19/r/n钢筋/r/n/r/n2500/r/n捆/r/n/r/n15000/r/n/r/n20/r/n模架安装/r/n/r/n500/r/n/r/n21/r/n混凝土/r/n/r/n100/r/n/r/n22/r/n其他辅助/r/n/r/n100/r/n/r/n幕墙/r/n23/r/n单元幕墙板块/r/n4000/r/n24/r/n其他/r/n50/r/n机电/r/n25/r/n管道/r/n/r/n200/r/n/r/n26/r/n设备/r/n/r/n100/r/n/r/n装修/r/n27/r/n隔墙/r/n/r/n50/r/n/r/n28/r/n砌体/r/n50/r/n29/r/n其他专业/r/n500/r/n30/r/n合计/r/n52061/r/n//r/n构件吊装时间分析表/r/n构件类别/r/n构件名称/r/n吊装总次数/r/n所占比例(%)/r/n一/r/n如钢柱、斜撑、桁架等一件一吊构件/r/n25526/r/n49.03/r/n二/r/n如楼层钢梁、水平撑等数件一吊构件/r/n3876/r/n7.45/r/n三/r/n其它专业及零星材料/r/n22659/r/n43.52/r/n构件分类/r/n现对塔吊每天吊次能力进行分析:根据塔吊起重性能,其起重速度为/r/n55/r/nm/min~/r/n110/r/nm/min.每吊装一次所需时间按构件类别进行如下分析:/r/n构件类型/r/n一吊次所需时间分配(min)/r/n施工部位/r/n每吊次时间(min)/r/n绑扎/r/n起钩/r/n廻转/r/n就位/r/n松钩/r/n落钩/r/n一类/r/n3/r/n0.5~2.5/r/n2/r/n12/r/n2.5/r/n0.3~1.5/r/n地上部位/r/n25/r/n二类/r/n6/r/n0.5~2.5/r/n2/r/n18/r/n2.5/r/n0.3~1.5/r/n32/r/n三类/r/n2/r/n0.5~2.5/r/n2/r/n3/r/n2.5/r/n0.3~1.5/r/n13/r/n综上所述,按照三类构件各自所占比例可计算出每吊装一次所需时间为:25/r/n×/r/n49.03%+32/r/n×/r/n7.45%+13/r/n×/r/n43.52%=20.3(min)。/r/n各阶段/r/n塔吊/r/n吊次/r/n分析/r/n塔吊台班核算/r/n本工程地上结构施工时工期仅为/r/n900/r/n个日历天。地上结构施工是塔吊选择的重要因素,下表以地上结构吊次分析满足施工的塔吊台数需求量。塔吊台班核算表/r/n序号/r/n计算公式与说明/r/n计算数据/r/n计算/r/n结果/r/n说明/r/n1/r/nNi=Qi/r/n×/r/nK/(qi/r/n×/r/nTi/r/n×/r/nbi)/r/nNi=Qi/r/n×/r/n1.4/(qi/r/n×/r/nTi/r/n×/r/nbi)/r/n=52061/r/n×/r/n1.4/(20/r/n×/r/n900/r/n×/r/n1.5)/r/n2.699/r/n台/r/n选择三台塔吊/r/n2/r/nNi/r/n—/r/n某期间机械需用量/r/n2./r/n699/r/n3/r/nQi/r/n—/r/n某期间需完成的工程量/r/n52061吊次/r/n4/r/nqi/r/n—/r/n机械的产量指标/r/n塔吊每个吊次平均需20.35分钟,每个台班按10小时考虑,可完成20次;/r/n5/r/nTi/r/n—/r/n某期间(机械施工)的天数/r/n900/r/n天;/r/n6/r/nbi/r/n—/r/n工作班次/r/n按单班为1,双班为2,平均按1.5班计;/r/n/r/n7/r/nK/r/n—/r/n不均衡系数/r/n一般取1.1~1.4,吊装(装卸)作业取1.4。/r/n根据塔楼钢结构吊次分析,选择三台塔吊即可满足工期要求。/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n关注微信公众号:鱼鱼工程技术小屋主编微信:yy-jsxw/r/n各阶段/r/n构件吊次分析表/r/n项目/r/n钢结构(件)/r/n土建(吊)/r/n机电/r/n安全防护材料/r/n起吊高度/r/n起钩速度/r/n落钩速度/r/n平均吊装时间/r/n综合系数/r/n平均每台塔吊工作时间/r/n核心筒钢结构/r/n外框钢结构/r/n钢桁架/r/n压型钢板/r/n模板/r/n钢筋/r/n绑钩/r/n起勾/r/n廻转/r/n松钩/r/n落钩/r/n就位时间/r/n工作时间/r/n含爬升时间/r/n钢管/r/n楼层/r/n核心筒钢板墙/r/n钢柱/r/n外围斜撑/r/n外框钢梁/r/n伸臂桁架/r/n(/r/n打包/r/n)/r/n(/r/n打包/r/n)/r/n(/r/n打包/r/n)/r/n(/r/n打包/r/n)/r/nm/r/n(/r/nm/min/r/n)/r/n(/r/nm/min/r/n)/r/n钢梁/r/n钢柱/r/n斜撑/r/n伸臂桁架/r/n钢板墙/r/n分钟/r/n天/r/n天/r/n(16h)/r/n(16h)/r/nUG/r/n20/r/n16/r/n16/r/n100/r/n0/r/n8/r/n15/r/n120/r/n6/r/n8/r/n12.4/r/n55/r/n55/r/n4/r/n2/r/n2/r/n2.5/r/n2/r/n15/r/n25/r/n25/r/n35/r/n25/r/n1.15/r/n7842.425/r/n2.7230642/r/n9.9339236/r/nUGM/r/n20/r/n0/r/n0/r/n100/r/n0/r/n8/r/n15/r/n120/r/n6/r/n8/r/n20/r/n55/r/n55/r/n4/r/n2/r/n2/r/n2.5/r/n2/r/n15/r/n25/r/n25/r/n35/r/n25/r/n1.15/r/n6462.425/r/n2.2438976/r/n2/r/n20/r/n16/r/n16/r/n100/r/n0/r/n8/r/n15/r/n120/r/n6/r/n8/r/n26.6/r/n55/r/n55/r/n4/r/n2/r/n2/r/n2.5/r/n2/r/n15/r/n25/r/n25/r/n35/r/n25/r/n1.15/r/n7842.425/r/n2.7230642/r/n3/r/n20/r/n0/r/n0/r/n100/r/n0/r/n8/r/n15/r/n120/r/n6/r/n8/r/n29.9/r/n55/r/n55/r/n4/r/n2/r/n2/r/n2.5/r/n2/r/n15/r/n25/r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/r/nt/r/n·/r/nm/r/n,转速0.52/r/n±/r/n0.1/r/nrpm/r/n。液压马达减速机可以正反旋转,且输出性能一致。采用2个液压马达圆周分布同步驱动,一台马达出现故障,其余1台马达负载能力能够满足要求,同时故障装置能够被动旋转,保证系统的正常运行。/r/n动力系统设计图/r/n液压/r/n马达设计图/r/n液压马达实体图/r/n液压泵站/r/n支承/r/n与顶升系统/r/n设计/r/n设计/r/n概况/r/n廻转塔机支撑与/r/n顶升/r/n系统主要包括:混凝土承力件与/r/n背板/r/n、上支撑架和下支撑架、/r/n液压系统、立柱/r/n、抗侧/r/n系统/r/n5部分。施工平台的荷载通过支撑立柱传递给上、下支撑架,通然后再通过混凝土承力件传递给核心筒混凝土墙体。为了保证支撑系统与墙体连接的可靠性和安全性,节约人工,同时适应核心筒墙体的变化,整个支撑系统需要具有伸缩功能和自动咬合功能。支撑系统的伸缩功能主要通过在支撑立柱与支撑架的连接处设置滑动支座来实现,自动咬合功能则采用挂爪和爪靴的连接方式来实现。顶升系统则包括顶升油缸与同步控制系统。/r/n顶升工作/r/n原理/r/n(1)工作状态:上下支撑架均通过挂爪和挂靴的咬合支撑在混凝土承力件上,顶升油缸处于完全回收或部分回收状态,此时作业人员在顶模钢平台及挂架上进行正常的核心筒墙体施工作业;/r/n(2)顶升状态:顶升油缸通过支撑立柱将廻转钢平台及上支撑架顶升一个楼层高度,此后上支撑架的挂爪翻转后与更高一层的混凝土承力件上的挂靴进行咬合固定,此时,作业人员需离开立柱内模架,仅保留部分顶升作业人员;/r/n(3)回收状态:顶升油缸通过收缸将下支撑架回收至更高一层的混凝土承力件上的挂靴进行咬合固定。此后,作业人员与建筑材料可以进入立柱内操作,进行正常的核心筒墙体施工。/r/n支撑系统设计/r/n支撑与顶升系统结构组成主要由混凝土承力件、上支撑架和下支撑架及位于上下支撑架之间的顶升油缸构成。混凝土承力件外形尺寸为4./r/

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