知名企业电动遮阳系统工程桁架施工方案

1、目录一、工程概况3二、编制依据3三、连廊的移动桁架施工方案4四、安全测算6五、施工时安全防护措施8六、高空作业应急预案13 一、工程概况工程名称：湘潭万达广场大商业电动遮阳系统深化设计、供应及安装调试工程工程概况：项目总建筑面积88.6万工程性质：新建工程工程地点：湖南省湘潭市。投标设备名称：大商业采光顶电动遮阳帘系统工程招标单位：湘潭万达广场投资有限公司监理单位：厦门勤奋建设工程监理有限公司总承包商单位：中国建筑第二工程局有限公司二、编制依据钢结构设计规范 （GB50017-2003） 冷弯薄壁型钢结构技术规范 （GB50018-2002） 建筑结构荷载规范 （GB50009-2012） 建

2、筑抗震设计规范 （GB50011-2010） 建筑地基基础设计规范 （GB50007-2011） 钢结构焊接规范 （GB50661-2011） 钢结构高强度螺栓连接技术规程 （JGJ82-2011）三、连廊的移动桁架施工方案1、基本结构考虑到本工程遮阳系统工作面积较大，工期较紧，结合现场四层楼面比五层楼顶女儿墙伸出的距离多出800mm左右，而连廊两侧距离只有10米左右。所以连廊处我司的方案是在连廊两侧4层楼面设置可移动的钢结构焊接移动桁架。 钢结构焊接移动桁架的支撑柱采用80*80*3毫米厚的方钢，横梁用80*80*3毫米厚的方钢焊成立体状，工作平面焊接50*50*3的角铁，上面放木板组成，工

3、作人员可以直接在平台上作业，四脚焊脚轮方便移动，工作时用角铁固定四个脚轮，在两边四楼墙体与桁架之间加焊限位点，以保证桁架不会横向移动。 桁架制作要求：桁架竖向全部是用80*80*3毫米厚的方钢进行满焊，以保证桁架的整体受力，横向中间横杆用12*80螺丝固定，并且两端用角铁满焊。桁架上模反全部用螺丝固定在横杆上，使它不会进行移动，并且中间全部铺设双层模板，使上面受力均衡。具体搭设方案如附图：2、施工工艺1）、焊前准备A、钢管：桁架是钢管构件，主梁为80*80*3.0mm，次梁为50*50*3.0mm；检查钢管变形情况，检查其规格材质是否符合质量要求；在分断位置进行抛光处理后，进行划线和放样，并做

4、好钢管编号及记录工作。实施相贯线线的切割坡口处理剂打磨。B、准备好一定数量的32mm焊条。C、产地及工具准备：在四层屋面准备一个10平米左右的空地作为桁架梁的定位平台；分别锯好主次梁的定位夹具。主次梁定位夹具用硬质木锲；同时准备两台交流电焊机及一台切割机。2）、部件装焊A、分段装焊：按照统筹兼顾、焊缝错开的原则，先对2根上弦梁和两根下弦梁进行分段及焊接，将两根定长为6米的80*80*3.0mm钢管进行对接装焊完毕后，依据长廊横跨距离，切割成一根整体为9.6米的长条行钢梁，作为桁架主梁中的上弦梁和下弦梁。计算好桁架主梁立体矩形面的立面高度，使用80*80*3.0mm钢管进行竖腹杆进行切割并打磨，

5、竖腹杆长度为800mm，其中四根竖腹杆下方焊接好脚轮；切割完毕后放在附件备用；使用50*50*3.0mm钢管进行平面拉杆的切割，平面拉杆的长度为1500mm，切割完毕后放在附件备用；将上弦梁和下弦梁通过竖腹杆连接，两个焊工同时在两头进行焊接，焊接完毕后，必须检查两根主梁是否完全平行；B、整体装焊：将焊接好的上下玄梁抬入女儿墙内部，安放在女儿墙上，女儿墙两头，将组装好的主玄梁横跨在女儿墙，两套主玄梁间距1.5米，作为桁架平台的宽度，开始将平面拉杆在两套主玄梁上焊接，最终装焊成一个整体的宽假矩形桁架。C、工作面焊接：主桁架焊接完毕后，开始焊接工作面，使用50*50*3.0mm的角铁在桁架上向上延伸

6、，搭设一个平行于采光顶钢梁面的施工工作面，施工工作面焊接完毕后，采用木柄铺垫在工作面上，施工人员逐步将剩下工序焊接完成。3）、焊后检验清理钢管表面飞溅及杂物，检测桁架外形尺寸，包括检测桁架的长度、宽度、高度及对角线长度及水平度。四、安全测算4.1计算简图 计算简图 (圆表示支座，数字为节点号)4.2 荷载与组合 结构重要性系数： 1.004.3 节点荷载 4.4单元荷载 1) 工况号: 0 *输入的面荷载: 序号荷载类型导荷方式体形系数面荷载值(基本风压)kN/m21恒载单向杆件-0.20 面荷载分布图: 面荷载序号1分布图（实线表示荷载分配到的单元） 2) 工况号: 1 *输入的面荷载: 序

7、号荷载类型导荷方式体形系数面荷载值(基本风压)kN/m21活载单向杆件-0.30 面荷载分布图: 面荷载序号1分布图（实线表示荷载分配到的单元）4.5 其它荷载 (1). 地震作用 无地震。 (2). 温度作用 无温度作用。4.6 荷载组合 (1) 1.20 恒载 + 1.40 活载工况14.7 内力位移计算结果 4.8 内力 4.1.1 工况内力4.1.2 组合内力4.1.3 最不利内力各效应组合下最大支座反力设计值(单位：kN、kN.m)节点号控制组合号组合序号NxNyNzMxMyMzNx最大117.20.26.10.00.00.0Ny最大117.20.26.10.00.00.0Nz最大1

8、17.20.26.10.00.00.01合力最大117.20.26.10.00.00.0Nx最小117.20.26.10.00.00.0Ny最小117.20.26.10.00.00.0Nz最小117.20.26.10.00.00.0Nx最大11-7.30.25.90.00.00.0Ny最大11-7.30.25.90.00.00.0Nz最大11-7.30.25.90.00.00.02合力最大11-7.30.25.90.00.00.0Nx最小11-7.30.25.90.00.00.0Ny最小11-7.30.25.90.00.00.0Nz最小11-7.30.25.90.00.00.0Nx最大117.

9、3-0.26.10.00.00.0Ny最大117.3-0.26.10.00.00.0Nz最大117.3-0.26.10.00.00.03合力最大117.3-0.26.10.00.00.0Nx最小117.3-0.26.10.00.00.0Ny最小117.3-0.26.10.00.00.0Nz最小117.3-0.26.10.00.00.0Nx最大11-7.2-0.25.90.00.00.0Ny最大11-7.2-0.25.90.00.00.0Nz最大11-7.2-0.25.90.00.00.04合力最大11-7.2-0.25.90.00.00.0Nx最小11-7.2-0.25.90.00.00.0N

10、y最小11-7.2-0.25.90.00.00.0Nz最小11-7.2-0.25.90.00.00.0各效应组合下最大支座反力标准值(单位：kN、kN.m)节点号控制组合号组合序号NxNyNzMxMyMzNx最大115.70.24.90.00.00.0Ny最大115.70.24.90.00.00.0Nz最大115.70.24.90.00.00.01合力最大115.70.24.90.00.00.0Nx最小115.70.24.90.00.00.0Ny最小115.70.24.90.00.00.0Nz最小115.70.24.90.00.00.0Nx最大11-5.70.14.70.00.00.0Ny最大

11、11-5.70.14.70.00.00.0Nz最大11-5.70.14.70.00.00.02合力最大11-5.70.14.70.00.00.0Nx最小11-5.70.14.70.00.00.0Ny最小11-5.70.14.70.00.00.0Nz最小11-5.70.14.70.00.00.0Nx最大115.7-0.24.90.00.00.0Ny最大115.7-0.24.90.00.00.0Nz最大115.7-0.24.90.00.00.03合力最大115.7-0.24.90.00.00.0Nx最小115.7-0.24.90.00.00.0Ny最小115.7-0.24.90.00.00.0Nz

12、最小115.7-0.24.90.00.00.0Nx最大11-5.7-0.14.70.00.00.0Ny最大11-5.7-0.14.70.00.00.0Nz最大11-5.7-0.14.70.00.00.04合力最大11-5.7-0.14.70.00.00.0Nx最小11-5.7-0.14.70.00.00.0Ny最小11-5.7-0.14.70.00.00.0Nz最小11-5.7-0.14.70.00.00.04.1.4 内力包络及统计按轴力 N 最大显示构件颜色 (kN)轴力 N 最大的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q3扭矩M弯

13、矩M2弯矩M31127110.0007.4-2.40.0-0.0-0.0-0.42126110.0007.4-2.0-0.00.10.0-1.33111110.0007.3-2.00.0-0.1-0.0-1.34112110.0007.3-2.4-0.00.00.0-0.45125110.0006.9-1.1-0.10.10.0-0.46110110.0006.8-1.1-0.0-0.10.0-0.47124110.0006.8-0.2-0.0-0.00.0-0.48123110.0006.80.30.0-0.00.0-0.19108110.0006.80.30.00.00.0-0.11010

14、9110.0006.7-0.2-0.00.00.0-0.4按轴力 N 最小显示构件颜色 (kN)轴力 N 最小的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q3扭矩M弯矩M2弯矩M31136110.000-2.60.00.00.00.00.02138110.000-2.60.00.00.00.00.036110.000-2.30.3-0.00.00.0-0.2445110.000-2.30.3-0.0-0.00.0-0.1546110.000-2.2-0.30.0-0.0-0.0-0.4625110.000-2.2-0.30.00.0-0.0

15、-0.475110.000-2.10.9-0.0-0.00.00.6844110.000-2.10.9-0.00.00.00.6947110.000-2.0-0.40.00.0-0.0-0.21026110.000-2.0-0.4-0.0-0.00.0-0.2按弯矩 M2 最大显示构件颜色 (kN.m)弯矩 M2 最大的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q3扭矩M弯矩M2弯矩M3111111.0800.8-4.10.2-0.00.22.227111.0803.44.90.2-0.00.2-2.7359110.0000.60.0-0.

16、4-0.00.20.0470110.5162.6-0.20.4-0.00.20.1580110.5162.6-0.40.30.00.20.1690110.8330.7-0.10.3-0.00.20.079111.0803.1-3.20.2-0.00.11.88150110.0002.00.2-0.30.00.10.4989111.080-0.0-0.10.20.00.10.01060110.000-0.10.1-0.20.00.10.1按弯矩 M2 最小显示构件颜色 (kN.m)弯矩 M2 最小的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q

17、3扭矩M弯矩M2弯矩M3112111.0800.8-4.1-0.2-0.0-0.22.228111.0803.44.9-0.2-0.0-0.2-2.7342111.000-0.10.00.0-0.0-0.2-0.1440111.0000.0-0.0-0.0-0.0-0.2-0.1550111.000-0.0-0.0-0.0-0.0-0.2-0.1649111.0000.00.00.0-0.0-0.2-0.1752111.0000.10.00.0-0.0-0.2-0.1859110.8330.70.0-0.4-0.0-0.2-0.0910111.0803.1-3.2-0.20.0-0.11.81

18、0147110.0002.00.20.3-0.0-0.10.4按弯矩 M3 最大显示构件颜色 (kN.m)弯矩 M3 最大的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q3扭矩M弯矩M2弯矩M31101110.0004.93.2-0.0-0.2-0.02.72116110.0004.93.20.00.2-0.02.733110.0002.42.50.0-0.0-0.02.548110.0003.54.9-0.2-0.00.12.557110.0003.54.90.2-0.0-0.12.5631110.0002.42.5-0.00.0-0.02

19、.5711111.0800.8-4.10.2-0.00.22.2812111.0800.8-4.1-0.2-0.0-0.22.292110.4333.2-2.80.0-0.10.01.8109111.0803.1-3.20.2-0.00.11.8按弯矩 M3 最小显示构件颜色 (kN.m)弯矩 M3 最小的前 10 个单元的内力 (单位：m,kN,kN.m)序号单元号组合号组合序位置轴力N剪力Q2剪力Q3扭矩M弯矩M2弯矩M318111.0803.44.9-0.2-0.0-0.2-2.727111.0803.44.90.2-0.00.2-2.733112.1352.42.30.0-0.0-0.

20、0-2.6431112.1352.42.3-0.00.0-0.0-2.65105110.4274.91.70.00.20.0-2.46120110.4274.91.7-0.0-0.2-0.0-2.4711110.0000.9-4.10.2-0.0-0.0-2.2812110.0000.9-4.1-0.2-0.00.0-2.299110.0003.2-3.20.2-0.0-0.0-1.71010110.0003.2-3.2-0.20.00.0-1.74.2 位移 4.2.1 工况位移4.2.2 组合位移第 1 种组合Uz(mm)5 设计验算结果 5.1 设计验算结果图及统计表 根据计算分析模型，

21、进行规范检验，检验结果表明，结构能够满足承载力计算要求，应力比最大值为0.52。下图为模型总体应力比分布图：杆件应力比分布图按“强度应力比”显示构件颜色“强度应力比”最大的前 10 个单元的验算结果（所在组合号情况号）序号单元号强度绕2轴整体稳定绕3轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果1800.453 (1/1)0.2820.2810.0070.0062752满足280.437 (1/1)0.5200.2130.0630.0039192满足370.436 (1/1)0.5190.2130.0630.0039192满足41010.414 (1/1)0.5000.

22、4370.0410.0001469满足51160.413 (1/1)0.5000.4360.0400.0001469满足6700.411 (1/1)0.2730.2710.0040.0082752满足730.382 (1/1)0.4640.3980.0300.0006969满足8310.381 (1/1)0.4630.3970.0300.0006969满足91050.369 (1/1)0.4460.3910.0220.0001469满足101200.368 (1/1)0.4460.3900.0220.0001469满足按“强度应力比”统计结果表范围1.001.000.900.900.700.7

23、00.500.500.00单元数0000156百分比0.0%0.0%0.0%0.0%100.0%按“绕2轴应力比”显示构件颜色“绕2轴整体稳定应力比”最大的前 10 个单元的验算结果（所在组合号情况号）序号单元号强度绕2轴整体稳定绕3轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果180.4370.520 (1/1)0.2130.0630.0039192满足270.4360.519 (1/1)0.2130.0630.0039192满足31010.4140.500 (1/1)0.4370.0410.0001469满足41160.4130.500 (1/1)0.4360.04

24、00.0001469满足530.3820.464 (1/1)0.3980.0300.0006969满足6310.3810.463 (1/1)0.3970.0300.0006969满足71050.3690.446 (1/1)0.3910.0220.0001469满足81200.3680.446 (1/1)0.3900.0220.0001469满足9110.3600.424 (1/1)0.1620.0540.00312342满足10120.3590.424 (1/1)0.1620.0530.00312342满足按“绕2轴整体稳定应力比”统计结果表范围1.001.000.900.900.700.70

25、0.500.500.00单元数0003153百分比0.0%0.0%0.0%1.9%98.1%按“绕3轴应力比”显示构件颜色“绕3轴整体稳定应力比”最大的前 10 个单元的验算结果（所在组合号情况号）序号单元号强度绕2轴整体稳定绕3轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果11010.4140.5000.437 (1/1)0.0410.0001469满足21160.4130.5000.436 (1/1)0.0400.0001469满足330.3820.4640.398 (1/1)0.0300.0006969满足4310.3810.4630.397 (1/1)0.030

26、0.0006969满足51050.3690.4460.391 (1/1)0.0220.0001469满足61200.3680.4460.390 (1/1)0.0220.0001469满足71040.2650.3210.283 (1/1)0.0260.0001469满足81190.2650.3200.283 (1/1)0.0260.0001469满足9800.4530.2820.281 (1/1)0.0070.0062752满足10550.2670.3250.280 (1/1)0.0340.0004242满足按“绕3轴整体稳定应力比”统计结果表范围1.001.000.900.900.700.70

27、0.500.500.00单元数0000156百分比0.0%0.0%0.0%0.0%100.0%5.2 设计验算结果表 本工程有1种材料： Q235弹性模量: 2.06*105N/mm2;泊松比: 0.30;线膨胀系数: 1.20*10-5;质量密度: 7850kg/m3.设计验算结果表 (强度和整体稳定为(应力/设计强度)单元号强度绕2轴整体稳定绕3轴整体稳定沿2轴抗剪应力比沿3轴抗剪应力比绕2轴长细比绕3轴长细比结果10.0910.1100.0980.0320.0001442满足20.2670.3240.2790.0370.0001442满足30.3820.4640.3980.0300.00

28、06969满足40.1600.1820.1540.0190.0003737满足50.0970.1000.0840.0100.0003434满足60.0630.0580.0580.0020.0003333满足70.4360.5190.2130.0630.0039192满足80.4370.5200.2130.0630.0039192满足90.2890.3440.1400.0420.0029184满足100.2880.3430.1390.0420.0029184满足110.3600.4240.1620.0540.00312342满足120.3590.4240.1620.0530.00312342满足

29、130.0080.0100.0100.0010.0006565满足140.0160.0190.0190.0030.0006565满足150.0070.0090.0090.0010.0006565满足160.0130.0160.0160.0030.0006565满足170.0300.0260.0260.0010.001103202满足180.2020.2020.2030.0050.005103202满足190.1930.1930.1930.0050.005103202满足200.1940.1940.1940.0050.005103202满足210.2040.2040.2040.0050.0051

30、03202满足220.1420.1210.1210.0030.003103202满足230.0290.0240.0240.0010.001103202满足240.0370.0310.0310.0010.001103202满足250.0650.0610.0610.0050.0003333满足260.0450.0370.0310.0070.0003333满足270.0260.0220.0220.0010.001103202满足280.1300.1560.1560.0210.0003232满足290.2670.3240.2790.0340.0004242满足300.0340.0290.0290.00

31、10.001103202满足310.3810.4630.3970.0300.0006969满足320.0320.0270.0270.0010.001103202满足330.2470.2480.2490.0050.005103202满足340.1640.1400.1400.0030.003103202满足350.2370.2400.2480.0050.005103202满足360.2120.2130.2150.0050.005103202满足370.2130.2130.2130.0050.005103202满足380.0460.0390.0390.0010.001103202满足390.1600

32、.1820.1540.0200.0003737满足400.3250.1790.1790.0060.006103202满足410.2100.1960.2000.0060.006103202满足420.3590.1850.1850.0060.006103202满足430.2620.2660.2780.0060.006103202满足440.0960.0990.0830.0100.0003434满足450.0630.0580.0580.0020.0003333满足460.0660.0610.0610.0050.0003333满足470.0470.0400.0330.0070.0003333满足480

33、.0160.0200.0200.0040.0006565满足490.3150.1670.1690.0050.005103202满足500.3170.1700.1700.0050.005103202满足510.2260.2280.2330.0050.005103202满足520.3130.1970.1990.0060.006103202满足530.2600.2630.2710.0060.005103202满足540.1310.1570.1570.0210.0003232满足550.2670.3250.2800.0340.0004242满足560.1600.1600.1660.0030.00310

34、3202满足570.1710.2110.0820.0240.00011945满足580.1860.2220.1380.0320.0038735满足590.2350.0910.0930.0010.0084787满足600.2270.0740.0740.0020.00458113满足610.1870.1080.1080.0050.0023160满足620.1880.1000.1000.0030.0043160满足630.2000.1200.1180.0040.0032754满足640.1210.1030.1020.0010.0032754满足650.1930.1180.1160.0040.0022

35、752满足660.1140.1040.1020.0020.0032752满足670.1700.1260.1240.0030.0012752满足680.1970.1280.1250.0020.0062752满足690.1600.1940.1920.0010.0022752满足700.4110.2730.2710.0040.0082752满足710.1720.1160.1160.0020.0053160满足720.1760.1030.1030.0040.0023160满足730.2380.1520.1510.0030.0052754满足740.1640.1070.1060.0030.0012754

36、满足750.1570.1320.1300.0020.0052752满足760.1930.1420.1400.0030.0012752满足770.1240.1110.1080.0020.0032752满足780.1940.1320.1290.0050.0022752满足790.0960.1040.1020.0010.0012752满足800.4530.2820.2810.0070.0062752满足810.0730.0160.0160.0000.00159113满足820.2660.0850.0850.0040.0045175满足830.1920.0810.0940.0020.00174140满

37、足840.1690.1080.1130.0010.00358113满足850.0570.0500.0530.0000.00158113满足860.2160.1600.1670.0010.00360113满足870.1710.2110.0820.0250.00011945满足880.1920.2250.1480.0310.0048735满足890.2270.1370.1370.0020.00558113满足900.2060.1100.1130.0010.0074787满足910.0320.0320.0370.0000.00058113满足920.1780.1190.1250.0010.00260

38、113满足930.1740.1080.1120.0010.00458113满足940.1930.0830.0970.0020.00074140满足950.0650.0040.0040.0000.00059113满足960.0490.0300.0300.0000.0014873满足970.2310.2930.1100.0340.00213146满足980.2250.1170.1170.0030.0055175满足990.2310.2930.1090.0340.00113146满足1000.0680.0290.0290.0010.0008495满足1010.4140.5000.4370.0410.

39、0001469满足1020.2190.2650.2360.0360.0001469满足1030.1380.1670.1510.0310.0001469满足1040.2650.3210.2830.0260.0001469满足1050.3690.4460.3910.0220.0001469满足1060.1310.1610.1420.0150.0003737满足1070.1060.1310.1160.0100.0003434满足1080.0810.1010.1010.0030.0003333满足1090.0810.1000.1000.0040.0003333满足1100.1370.1680.1490.0150.0003333满足1110.2220.2700.2360.0260.0001632满足1120.1480.1800.1600.0320.0001632满足1130.2160.2610.2260.0270.0001442满足1140.0910.1100.0970.0