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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date多层砖混结构办公楼施工组织DADI 课程设计书多层砖混结构办公楼施工组织 班级:学号: 姓名: 2012年1月2号 多层砖混结构办公楼施工组织一 .施工概况1.工程概况 工程为某单位办公楼(兼单身职工宿舍),位于西安市雁塔路。该建筑物为五层(局部六层),最高22.45,平面为T型,后楼带地下室,总建筑面积为6121。 承重结构除门厅部分为现浇钢筋混凝土框架外,皆采用砖
2、混结构。实体砖墙承重,预制钢筋混凝土多孔板,大梁及楼梯均为现浇。为了满足抗震要求,每个楼层设置圈梁一道,在内外墙内按抗震规范要求设构造柱。 室内地面除门厅、走廊、试验室、厕所后楼梯踏步为水磨石面层,其它皆采用水泥砂浆地面。室内抹灰为石灰砂浆打底,纸筋灰罩面并喷白。室外装修沿街及南面墙采用干粘、石面层,局部为白色水泥砂浆面层。非沿街墙面为清水墙,门套窗套及腰线等用普通水泥砂浆抹面。 屋面用炉渣保温层,三毡四油防水层上铺绿豆砂。上人屋面部分铺设预制混凝土板。散水为无筋混凝土一次抹光。 设备安装及水、暖、电工程配合土建施工。2.地质及环境条件 根据勘测报告土壤为级大孔性黄土,天然地基承载力为15T/
3、,地下水位在地表下67,地表耕土层厚0.5。 建筑场地南侧及北侧均为已建成建筑物,西侧为某生产大队菜地,以土墙为界。东侧为雁塔路,距道牙3内的人行道不得占用,沿街树木不得损伤。人行道一侧上面尚有高压输电线及电话线通过(附总平面图)。3.气象条件 施工期间(夏秋二季)主导风向:偏东。雨季为9月份。4施工工期要求 自5月1日开工至元月30日竣工,限定总工期九个月。5施工技术经济条件 施工任务由西安市某建筑公司承担,该公司分派一处施工队负责。该队有瓦工20人,木工16人以及其他辅助工种工人如钢筋工、机工、电工及普工等共计140人。根据施工需要有部分民工协助工作。装修阶段可从其他施工队调入抹灰工,最多
4、调入70人。 施工中需用的电、水均从城市供电供水网中接引。建筑材料及预制品件均可用汽车运入工地。多孔板由预制厂制作(运距10公里),木制门窗由市木材加工厂制作(运距7公里),钢筋骨架由公司钢筋加工厂制作(运距7公里)。水泥由散装罐车供应。 大型临建工程中除搅拌棚、材料库、木工棚、沥青熬制场需要设置外,办公及其它生活用房均可利用已建成的家属宿舍楼,工人宿舍虽无需设置,但工地食堂及锅炉房仍应设置。可供施工选用的起重机有QT16型塔吊,QT12型塔吊。汽车除解放牌(5T)外,尚有黄河牌(8T)可以使用。卷扬机、各种搅拌机、木工机械、混凝土振捣器、脚手架板可根据计划需要进行供应。二施工方案的选择1施工
5、程序与施工流向(1)施工程序与各部分工程的施工顺序本工程的分部工程划分及施工程序为:基础主体屋面内装饰外墙装饰及室外基础工程的施工顺序:挖土方垫层砌基础混凝土基础回填土主体工程的施工顺序:脚手架扎构造柱钢筋砌砖墙柱、梁、板、楼梯支模浇柱混凝土扎梁、板、楼梯钢筋浇梁、板、楼梯混凝土吊装楼板(含楼板灌缝)拆模屋面工程的施工顺序:找平层冷底子油及热玛蹄脂保温层找平层防水层保护层内装饰工程的施工顺序:天棚、内墙抹灰安装门窗玻璃油漆墙面喷白楼地面外墙装饰及室外工程的施工顺序:外墙面装饰台阶散水(2)施工段的划分与施工流向 基础工程:分为3段,19轴线为第一段,918轴线为第二段,GN轴线为第三段,由南向
6、北流水施工。主体工程:15层每层分为4个施工段,地下室只有GN轴线部分有,记为1个施工段,第6层只有611轴线部分有,记为一个施工段,共22个施工段,自南向北,由下而上组织流水施工,保证砌砖墙工序连续施工。屋面工程:不分段,整体一次施工。内装饰工程:自下而上,一层一段,共7段。其中地下室无需安装门窗和玻璃油漆工序,此两道工序施工段为6段。外墙装饰及室外工程:不分段,自上而下整体一次施工。2、施工方法及机具选择地基基础施工阶段,即在拟建房屋处安装一台QT1-15塔吊(具体位置见平面布置图)。主体结构施工所需砖、混凝土、构件和周转材料的水平、垂直运输主要由此塔吊承担。同时在办公楼南端设置一座扣管式
7、井架,以弥补塔吊所安装不到的位置和缓解塔吊吊次,并作为垂直运输砂浆的主要工具。主体结构施工完毕后,拆除塔吊,另在办公楼西端增设一座扣管式井架共同承担装修阶段的垂直运输。水平运输可用双轮手推车。QT1-6塔吊起重量为515t,起重半径825m,最大起重高度55m。井架每个4m2m,卷扬机棚每个1.5m1.5m,且距离井架不小于10m。经验算,垂直运输能力满足需要。(3)选择脚手架的类型及其布置二步架砌砖采用里脚手平台架子,建筑物外墙双排立桥式脚手架,随楼层升高,并挂安全网。(4)特殊部位的施工方法和技术措施A 砖基础砂浆配合比应采用重量比,并由试验室确定,水泥计量精度为2%,砂,掺合料为5%。宜
8、用机械搅拌,投料顺序为砂水泥掺合料水,搅拌时间不少于1.5min。砂浆应随拌随用,一般水泥砂浆和水泥混合砂浆须在拌成后3h和4h内使用完,不允许使用过夜砂浆。组砌方法应正确,一般采用满丁满条。里外咬槎,上下层错缝,采用“三一”砌砖法(即一铲灰,一块砖,一挤揉),严禁用水冲砂浆灌缝的方法。B圈梁、梁模板安装圈梁、梁模板采用木模。安装梁模板前先安装钢管支柱,应采用双排支柱,间距为6001000mm,支柱间设置斜撑和水平拉杆,以保证稳定性。按设计标高调整支柱标高,铺梁底木模板,并拉线找直找平。对于梁长超过4m的应按梁跨的13进行起拱。绑扎圈梁、梁钢筋时,校正位置和保护层,经检查合格后,清除垃圾杂物即
9、可安装两侧模板。侧模安装完成后、拉通线校正侧模,并用48钢管加固C梁钢筋绑扎绑扎顺序:在主筋上划出箍筋间距,将梁主筋穿好箍筋并分开,首先固定主筋,然后将主筋和箍筋绑扎牢固。梁主筋与箍筋应垂直,箍筋的接头应交错设置,箍筋转角与纵向钢筋的交叉点均应扎牢。主次梁钢筋相遇时,次梁的纵向受力筋应放在主梁的纵向受力筋上。梁钢筋保护层用水泥砂浆垫块控制,绑在梁外层钢筋上。D楼梯混凝土浇筑浇筑时从楼梯段下部向上浇筑,先振实底板混凝土,至达到踏步位置时,再与踏步混凝土一起浇筑,不断连续向上推进,并随时用木抹子将踏步上平面压实抹平。E构造柱混凝土浇筑先浇灌5cm厚与混凝土配合比相同的减半石子混凝土;混凝土应分层浇
10、灌,每层浇灌厚度不得超过50cm,先将振动棒插入柱底部,使其振动,再灌入混凝土,边下料边振动,直到顶部,并用木抹子将顶部压实压平。三施工进度计划1计算表(1)基础工程1-9轴线段面积为388.805m2,9-18轴线段面积为421.005m2,G-N轴线段面积为291.2m2,因此各段工程量的比值如下:1-9轴线段占35.31%,9-18轴线段占38.24,G-N轴线段占26.45.基础工程的工程量计算表如下表(垫层与砖基础之间需留1天的技术间歇时间)施工过程施工段单位工程量时间定 额劳动量班制人数流水节 拍挖土方1M2423.6990.0068.542124.521541.8370.0069
11、.251124.531066.4640.0066.3988123.0混凝土垫层1M2102.0461.3132.65983301.52110.5141.3143.66823302.0376.441.399.3723301.0砖基础1M2129.4911.22158.5281305.52140.7231.22171.68211306.0397.3361.22118.751304.0133.1912.4681.64993301.0 基础圈梁构造柱2M235.9462.4688.42723301.0324.8632.4661.16303300.5基础回填土及房心回填土1M2865.0950.9225
12、0.87761406.02936.880.92271.69521407.03648.0250.92187.92731405.0(2)主体工程.主体工程的工程量计算如下表:施工过程施工段单位工程量时间定额劳动量班制人数流水节拍1砌砖墙地下室M3220瓦0.5普0.71321255.01-152.5631.5361251.01-240241251.01-367.4440.4641252.01-41901141254.52-152.5631.5361251.02-211770.21253.02-367.4440.4641252.02-4182109.21254.53-141.17224.703125
13、1.03-29758.21252.53-352.82831.6971251.03-415190.61253.54-141.17224.7031251.04-29758.21252.54-352.82831.6971251.04-415190.61253.55-141.17224.7031251.05-29758.21252.55-352.82831.6971251.05-4135811253.06120721253.0现浇柱模板地下室M2480.146.72181.01-114.4562.024180.51-211816.52182.01-318.5462.596180.51-4324.481
14、80.52-114.4542.024180.52-28111.34181.52-318.5462.596180.52-4324.48180.53-110.951.533180.53-28011.20181.53-314.051.967180.53-4223.08180.54-110.951.533180.54-28011.20181.54-314.051.967180.54-4223.08180.55-110.951.533180.55-28011.20181.55-314.051.967180.55-4223.08180.568511.9181.5钢地下室t0.574.42.208150.5
15、1-10.1710.752150.51-21.490.556150.51-30.2190.964150.51-40.371.628150.5筋2-10.1710.752150.52-20.934.092150.5现浇柱钢筋2-3t0.2194.40.964150.52-40.371.628150.53-10.1310.576150.53-20.93.96150.53-30.1690.742150.53-40.261.144150.54-10.1310.576150.54-20.93.96150.54-30.1690.742150.54-40.261.144150.55-10.1310.5761
16、50.55-20.93.96150.55-30.1690.742150.55-40.261.144150.560.984.312150.5混凝土地下室M34.341.66.9441100.51-11.2962.0741100.51-210.416.641100.51-31.6642.6621101.51-42.864.5761100.52-11.2962.0741100.52-27.1211.3921101.02-31.6642.6621100.52-42.864.5761100.53-10.98111.5701100.53-27.1211.3921101.03-31.2592.0141100
17、.53-41.953.121100.54-10.98111.5701100.54-27.1211.3921101.0现浇柱混凝土4-31.2592.0141100.54-41.953.121100.55-10.98111.5701100.55-27.1211.3921101.05-31.2592.0141100.55-41.953.121100.567.4811.9681101.0现浇圈梁大梁挑檐模板地下室M21580.1320.54183.01-151.2466.662181.01-218023.4183.01-365.7548.548181.01-413417.42182.52-148.6
18、186.320181.02-210814.04182.02-362.3828.110181.02-413417.42182.53-134.1644.441180.53-29512.35181.53-343.8365.70180.53-412015.6182.04-134.1644.441180.54-29512.35181.54-343.8365.70180.54-413016.9182.55-134.1644.441180.5现浇圈梁大梁挑檐5-29512.35181.55-343.8365.70180.55-413417.42182.5614018.2182.5钢筋地下室t1.97.814
19、.8391151.01-10.6134.7881150.51-22.1616.8701151.01-30.7876.1451150.51-41.6112.5741151.02-10.6044.7171150.52-21.310.1531150.52-30.7766.0571150.52-41.6112.5741151.03-10.2982.3271150.53-21.148.9031150.53-30.3822.9851150.53-41.4411.2461150.54-10.2982.3271150.54-21.148.9031150.54-30.3822.9851150.54-41.441
20、1.2461150.55-10.2982.3271150.55-21.148.9051150.55-30.3822.9851150.5现浇圈梁大梁挑檐5-41.8514.4491151.061.6813.1211151.0混凝土地下室M315.81.2119.1181201.01-16.2637.5781200.51-21821.781201.01-38.0379.7241200.51-413.416.2141200.52-14.8625.8831200.52-210.813.0681200.52-36.2387.5481200.52-413.416.2141200.53-13.4164.13
21、31200.53-29.511.4951200.53-34.3845.3041200.53-413.416.2141200.54-13.4164.1331200.54-29.511.4951200.54-34.3845.3041200.54-41214.521200.55-13.4164.1331200.55-29.511.4951200.55-34.3845.3041200.55-415.418.6341200.561416.941200.5现浇楼梯现浇楼梯模板地下室M236.70.155.505181.51-111.3881.708180.51-263.29.48181.01-314.61
22、22.192180.51-436.75.505181.02-111.3881.708180.52-263.29.48181.02-314.6122.192180.52-436.75.505181.03-111.3881.708180.53-263.29.48181.03-314.6122.192180.53-436.75.505181.04-111.3881.708180.54-263.29.48181.04-314.6122.192180.54-436.75.505181.05-263.29.48181.0钢筋地下室0.435.591100.51-10.1564.6291100.51-20.
23、759.751101.01-30.22.6011100.51-40.435.591100.52-10.1564.6291100.5钢筋2-2t0.75139.751101.02-30.22.6011100.52-40.435.591100.53-10.1564.6291100.53-20.759.751101.03-30.22.6011100.53-40.435.591100.54-10.1564.6291100.54-20.759.751101.04-30.22.6011100.54-40.435.591100.55-20.759.751101.0混凝土地下室M33.61.55.41100.
24、51-11.0951.6431100.51-26.29.31101.01-31.4052.1081100.51-43.65.41100.52-11.0951.6431100.52-26.29.31101.02-31.4052.1081100.52-43.65.41100.53-11.0951.6431100.53-26.29.31101.03-31.4052.1081100.5现浇楼梯混凝土3-4M33.61.55.41100.54-11.0951.6431100.54-26.29.31101.04-31.4052.1081100.54-43.65.41100.55-26.29.31101.0
25、现浇楼板模板1-1M213.6660.0510.697120.51-317.5340.894120.52-113.6660.697120.52-317.5340.894120.53-113.6660.697120.53-217.5340.894120.54-113.6660.697120.54-317.5340.894120.5钢筋1-1t0.0887.370.649120.51-30.1120.825120.52-10.0880.649120.52-30.1120.825120.53-10.0880.649120.53-20.1120.825120.54-10.0880.649120.54-
26、30.1120.825120.51-11.1390.649130.51-31.4610.528130.5现浇楼板混凝土2-1M31.1391.021.162130.52-31.4611.490130.53-11.1391.162130.53-21.4611.490130.54-11.1391.162130.54-31.4611.490130.5安装楼板地下室块141井84块/班塔130块/班1.085120.51-1570.438120.51-2840.646120.51-3730.562120.51-41491.146120.52-1570.438120.52-2840.646120.52-
27、3730.562120.52-41491.146120.53-1570.438120.53-2840.646120.53-3730.562120.53-41491.146120.54-1570.438120.54-2840.646120.54-3730.562120.54-41491.146120.55-1570.438120.5安装楼板5-2640.462120.55-3730.562120.55-41491.146120.56720.554120.5楼板灌缝地下室M312.30.151.845130.51-13.1980.480130.51-29.61.44130.51-34.1020.6
28、15130.51-412.41.86130.52-13.1980.480130.52-29.61.44130.52-34.1020.615130.52-412.41.86130.53-13.1980.48130.53-29.61.44130.53-34.1020.615130.53-412.41.86130.54-13.1980.48130.54-29.61.44130.54-34.1020.615130.54-412.41.86130.55-13.5480.532130.55-29.61.44130.55-34.5520.683130.55-412.41.86130.5611.51.7251
29、30.5(3)屋面工程屋面工程的工程量计算表如下:施工过程施工段单位工程量时间定额劳动量班制人数流水节拍屋面板上找平层1M214250.0571.25198.0冷底子油1M214250.0068.551101.0两道热马蹄脂1M214250.0228.51152.0炉渣保温1M21160.5581154.0保温层上砂浆找平层1M314650.0573.251204.0卷材防水层1M214650.06392.2951214.5上人屋面混凝土地面垫层1M33340.66220.441307.5(4)内装饰工程施工过程施工段单位工程量时间定额劳动量班制人数流水节拍顶棚抹灰1M2M2255.4550.
30、1128.11400.52965.768106.2341403.03965.768106.2341403.0顶棚抹灰4965.7680.11106.2341403.05965.768106.2341403.06965.768106.2341403.07193.70321.3071400.5内墙面抹灰1M2964.7570.0986.8281402.023647.34328.2611408.033647.34328.2611408.043647.34328.2611408.053647.34328.2611408.063647.34328.2611408.07731.54165.8391402.
31、0安装门窗1M2364.7930.272.9591155.02364.79372.9591155.03364.79372.9591155.04364.79372.9591155.05364.79372.9591155.0673.03514.6071151.0木门窗油漆1M2364.7930.1151.0711153.52364.79351.0711153.53364.79351.0711153.54364.79351.0711153.55364.79351.0711153.5673.03510.2251150.5玻璃安装1M2244.2210.0819.5381151.02244.22119.5381151.03244.22119.5381151.04244.22119.5381151.05244.22119.5381151.0648.8953.9121150.5室内喷白1M23936.3810.00623.618183.023936.38123.618183.033936.38123.618183.043936.38123.618183.053936.38123.618183.06788.0954.726180.5地下室混凝土地面垫层1M31601.42241307.5水泥砂浆楼地面1M2209.088
限制150内