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1、30m箱梁架设施工组织设计1 总则1.1 本施工工艺细则适用于勉宁高速公路30m箱梁的架设。1.2 本细则依据公路桥梁施工技术规范JTJ041-2000，DJ50步履式（伸缩臂式）单导梁架桥机使用说明书等编制的，有些条文结合国内有关施工习惯编制而成。1.3 依据勉宁高速公路招标文件，勉宁高速公路MN-9的阶段施工图编制。2 编制原则2.1 严格执行施工验收规范、操作规程。2.2 加强生产管理，提高机械施工水平和劳动生产率。2.3 合理安排施工计划。2.4 精心进行现场布置，节约施工用地，充分利用永久征地，组织文明施工，搞好环保。2.5 推行项目法施工，一切从实际出发，做好人力、物力的综合平衡，
2、组织均衡生产。2.6 落实安全生产。3 工程概况勉宁高速公路MN-9标段30m箱梁架设用于K27+223.2毛坝子玉带河大桥和K27+600赵家嘴玉带河大桥。K27+223.2毛坝子玉带河大桥起止里程（左幅）K27+070.5K27+375.9。采用预制30m后张箱梁，简支后连续化。桥端及各联连续梁端处，设置XA型浅埋伸缩装置。左幅分三联，430m+330m+330m共10孔；右幅分三联，330m+330m+330m共9孔。全桥处于平曲线半径518.99m的圆曲线及缓和曲线段。圆曲线盖梁横坡为5%，按不等长预制梁，桥墩中心线径向布置，预制梁每孔每幅4片梁，梁高1.6m，梁中距3m。通过现浇梁间
3、翼板湿接缝，及连接端、中隔板实现箱梁整体化。梁端支承三角垫层下放置板式橡胶支座（GJZ 30035064）。K27+600赵家嘴玉带河大桥起止里程K27+524.28K27+677.72。桥端及各联连续梁端处，设置XA型浅埋伸缩装置。全桥分左、右幅530m共5孔，全桥处于平曲线半径600m的圆曲线及缓和曲线段。盖梁横坡为5%，按不等长预制梁，桥墩中心线径向布置，预制梁每孔每幅4片梁，梁高1.6m，梁中距3m。通过现浇梁间翼板湿接缝及连接端、中隔板实现箱梁整体化。梁端支承三角垫层下放置板式橡胶支座（GJZ 30035078）。30m箱梁预制场设置于K27+680K28+030成型路基上，赵家嘴5
4、#台背设置存梁场及架桥机铺设位置。梁桥共计架设30m预制箱梁116片。工程名称梁种类数量（片）单梁砼量（m3）单梁重（t）梁总量（片）毛坝子玉带河大桥边梁11928.5571.3876边梁21929.3873.46中梁3827.8169.53赵家嘴玉带河大桥边梁11028.5571.3840边梁21029.3873.46中梁2027.8169.53架梁顺序按先架赵家嘴大桥预制梁，后架毛坝子大桥预制梁。赵家嘴大桥先左后右，毛坝子大桥先右后左的方法架设。4 施工组织机构技术：曹桂才材料：杨建荣调度：范建平后勤：彭长海副总指挥：唐宪春质量：靳宝林安全：王家驹机械：吴长亭副总指挥：阚严忠总指挥：周 波
5、5 选用架桥机械本标段30m后张预应力箱梁采用DJ50/160步履型伸缩臂式单导梁架桥机，用于架设公路桥梁50m及以下跨度预应力砼梁片。机械属单臂简支型，机械能上下升降，前后伸缩，左右摆头，整机可横向移动，能实现全幅机械横移梁片，达到一次落梁到位。其主要性能参数：序号项 目 名 称单 位参 数 值1额定起重量t1602主机总重量t1803适宜跨度m504整机功率Kw745架设梁片适宜横坡%26架设梁片适宜纵坡%57架设梁片最大外形尺寸（宽高）m2.952.98吊梁纵移速度m/min59吊梁起落速度m/min0610吊梁整机横移速度m/min1.611导梁纵移速度m/min512吊梁起升高度m5
6、.513吊梁跨中挠度mm27014过孔悬臂挠度mm85015架设曲线桥最小半径m35016工作状态时整机重心高度m3.217落架方式机械全断面一次到位18喂梁方式尾部运梁车喂梁19控制方式手动电控20液压系统最大工作压力Mpa32机动运梁车部分：序号项 目 名 称单 位参 数 值1额定载重量t1602最大牵引力KN503整机总重量t 94允许能通过最小曲线半径m3505最大自行速度空载m10重载m56动力方式m电动、电磁制动6 施工平面图7 单导梁架设预应力砼箱梁施工工艺图8 梁体架设顺序：按先中后边，对称架设的原则，使桥墩盖梁均匀上荷载。赵家嘴大桥按先左幅后右幅顺序，525354514243
7、4441323334312223242112131411；架桥机退回5#台右幅，拆除左幅桥面运梁轨道，将台后运梁轨道拨至右幅，开始架设右幅梁片，5657585546474845363738352627282516171815；毛坝子大桥按先右后左的顺序，从右8#台开始架设，施工原理同赵家嘴大桥。9 主要施工工序及安全操作规程- 63 -单导梁架设预应力砼箱梁施工工艺流程图行车后移运梁车回存梁厂存梁厂梁片装运架桥机解体移至下一工点施工重复上述步骤逐孔架设完成单幅每孔梁片架设重复以上步骤桥梁落位安支座落 架梁片捆梁、吊装运梁小车运梁架桥机前冲过孔至架设位铺设运梁轨道并试吊拼装单导梁架桥机施工准备梁
8、片间连接施工9.1 施工准备：(1) 赵家嘴5#台后路基平整，将路基横向坡度调整在2%以内，并做好排水方向，做到路基填土密实；(2) 施工测量：放架桥机每孔架设纵向工作线（墩台中心线），垫石、橡胶支座中心线、伸缩缝端线及落梁工作线，测量每块垫石标高是否符合设计及规范要求，如不符合及时处理；(3) 落实人员组织机构，并做好岗前培训；(4) 落实架梁所需材料进场数量，如钢轨、轨木、硬杂木等；(5) 检查架桥机进场配件是否与装车清单符合、结构组件和机电元件是否完好无损；(6) 检查电缆是否安全可靠，有无短路和绝缘损坏现象；(7) 清理各部件特别是运动机构附着物，达到整洁。9.2 组装架桥机及施工技术
9、要求9.2.1组装架桥机(1) 在5#台路基存梁场地拼装；(2) 铺设1#柱横移轨道于5#台上。2#柱横移轨道于路基上；(3) 在横移轨道上放置1#柱，2#柱走行机构；(4) 地面组拼伸缩臂、机臂总成、曲梁总成和1#、2#柱柱身；(5) 将1#柱柱身连在走行机构上且用风缆拉紧，将2#柱柱身立于2#柱走行机构上；(6) 用龙门吊将机臂总成置于1#、2#柱身上，将1#曲梁与1#柱、2#曲梁与2#柱拴连在一起；(7) 将0#柱和3#柱总成吊起连在伸缩臂和机臂下方端部；(8) 用25T吊将2台吊梁行车总成从机臂后方悬挂在机臂下方耳梁上；(9) 铺设运梁轨道，将2台运梁台车置于轨道上；(10)配置电气系
10、统。9.2.2 组装架桥机施工技术要求(1) 保证5#台后路基平整、夯实，不得有局部路基松软，保证拼装架桥机场地的有效长度；(2) 横移轨道下方应用硬杂木支垫好，轨道铺设应克服桥台路基5%横坡，要铺设水平；(3) 组装时所有拴接螺栓应上紧上牢，以保证受力均匀；(4) 组装前应检查各连接部位有无损伤变形情况，各部螺栓和销子有无脱落、丢失、损坏等情况，应注润滑油部位是否已注润滑油或脂等，然后进行组装；(5) 将存梁场地宁强向左侧梁体吊走，铺设运梁车轨道，龙门吊配合喂梁，运梁车轨道铺设应选择重型轨铺枕木加横联方式，以保证轨距准确，两轨应保持水平，对轨线应对准梁体中心线；(6) 组装完毕后应进行一次全
11、面检查和试运转，充分了解各部分工作状态和可靠程序，项目包括：a、各部连接螺栓的紧固情况，特别是机臂、伸缩臂节与连接处的螺栓紧固情况，其扭紧力矩必须达到设计要求，即M36高强螺栓的扭紧力矩为4320Nm；M30高强螺栓的扭紧力矩为3200Nm；M24高强螺栓的扭紧力矩为2000Nm；b、机臂伸缩，横移和伸缩臂伸缩试验；c、整机横移运行及制动试验；d、行车运行和卷扬吊重试验；e、各油缸支腿伸缩试验；f、运梁台车运行试验；g、机械、电气设备、液压系统等设备及元件的检验；9.3 架桥机前冲过孔至架设位DJ50/160型单导梁架桥机前冲过孔应严格按作业顺序进行，否则会对设备安全可靠性造成严重影响。作业顺
12、序：(1) 将3#柱伸出支在桥面新枕木或硬杂木上，与1#柱共同支撑架桥机；(2) 收起2#柱支腿，撤除2#曲梁上方固定销，使机臂定位消除；(3) 驱动1#行车走行至2#曲梁下方，用销将曲梁与行车锁定，启动1#行车走行机构，将2#柱及其横移轨道基本前移15m。顶起2#柱支平、支稳横移轨道；(4) 收起0#柱、3#柱。撤除曲梁上方机臂固定销，使机臂定位消除，同时在机臂上距2#柱15m处设置限位销2个作为前冲保护；(5) 驱动1#行车走行前行至机臂伸出15m后停止前行；(6) 驱动伸缩动力机构前送伸缩臂至4#墩前端上方支好0#柱，柱下方必须用硬杂木板和硬杂木楔将0#柱脚垫实；(7) 撤除机臂上临时定
13、位销，在驱动1#行车走行和运梁车前行的同时，操作伸缩臂驱动机构回缩，前边机臂至4#墩上方；(8) 插入2#曲梁与机臂定位销，收起1#柱，将1#柱行车与2#柱锁定撤除，前行至1#曲梁销定后运送1#柱至4#墩上方的0#柱后面，铺设横移轨道，支好1#柱；(9) 将1#柱用1#曲梁锁定，撤除1#行车与1#柱锁定，退回1#行车于吊装位；(10)收起3#柱，运梁车前行至机臂下方1#行车吊梁位。9.3.2 施工技术条件(1) 因两桥均有1.667%的纵坡，应通过2#柱、3#柱调整高度，使机臂调平后进行作业，其中赵家嘴大桥在4#墩有变坡，施工应注意；(2) 路基与桥台结合处是中期压实薄弱环节，2#柱横移轨道铺
14、设时须确认路基压实程度，应采用垫硬木密排方式，增强荷载传递面，保证作业时的安全；(3) 架桥机前冲过孔是关键作业，操作人员应熟悉掌握控制按钮，严格控制作业范围，明确指挥信号；(4) 注意检查各运动元件可靠性，特别是联合作业时，如运梁车、1#行车和伸缩臂驱动机构同时作业，必须可靠同步，否则，立即停止作业；(5) 滑线电缆应随动自如，不得有挂、挤现象，确保作业安全；(6) 定位销的销定和撤除应及时准确操作。9.3.3 冲孔进行的安全操作规程(1) 冲孔作业前对各机构必须达到正常试运转，确保无误；(2) 主机操作人员应按照指挥人员的信号准确操作；(3) 在1#曲梁、2#曲梁上方平台作业人员必须注意安
15、全防护并经确认；(4) 在作业过程中，如出现不良状态，应马上停止作业，特别是伸缩臂与主机臂同步作业时；(5) 定位销的锁定和撤除的顺序与部位，每一道作业应由专人进行检查验证；(6) 在0#柱支放前需有作业人员在前方，注意作业行走安全；(7) 在风力大于4级时，严禁前冲过孔作业；(8) 在联合作业时，应由指挥人员现场明确信号，方可进行。9.4 架梁作业9.4.1 运梁9.4.1.1 运梁车装运梁施工技术条件(1) 采用梁场龙门吊将梁片移至运梁台车上方；(2) 运梁车装梁时，梁片重心应落在台车纵向中心线上，偏差不得超过20mm，在运送边梁时要特别注意，由于桥处曲线上，和梁片中心与台车纵向中心线斜交
16、；(3) 梁片落在机动平车上时，梁前端应超出台车支承横梁23m，梁片与台车支承间应垫放硬杂木板或纤维层胶皮，以保护梁片砼；(4) 运梁台车运送梁片时，应在两台车上分别由专人护送，预防梁片支撑松动，运梁台车速度由专人操作控制动力。(5) 在已架设的梁体上运梁时，运梁轨下枕木要用岔枕（长4500mm），扩大轨道支承面积。9.4.1.2 安全操作规程(1) 运梁台车运梁时，应先试电机制动是否可靠；(2) 运梁台车停运时，应及时放置止轮器；(3) 运梁台车动力电缆由专人看护，不得有挂、挤、压现象发生；(4) 运梁时由专人指挥，专人操作，信号应果断、明确；(5) 梁片支撑应确认可靠方可运梁，随车都应有专
17、人分别看护支撑。9.4.2 梁片捆梁、吊梁梁片的捆梁和吊装作业是交叉进行的，主要包括以下过程：当运梁台车将梁片前端到达1#吊梁行车下方时，捆梁、吊梁使梁前端脱离前运梁台车状态下前进，待梁片后端送到2#吊梁行车下方时在捆梁，吊起梁片后端，梁片全悬吊状态下前进对位。9.4.2.1 施工技术条件(1) 捆梁作业应在梁片底面转角与吊梁钢丝绳接触处，安设护梁铁瓦以免砼被挤碎，吊梁绳割伤；(2) 捆梁钢丝绳采用6X（37）型交互捻制钢丝绳，直径43mm；(3) 捆梁应符合纵向限制的规定，梁体悬出长度按设计要求；(4) 机臂上应设有专人看护，防止吊梁行车卷筒钢丝绳掉槽、绕乱绳；(5) 卷扬机用钢丝绳采用6W
18、（19）型，交互捻制的钢丝绳；(6) 吊梁时应保持左右两侧卷扬机升降速度一致，受力正常，前后行车吊梁高度差不应太大，保持梁体水平。9.4.3 落梁及梁间连接9.4.3.1 施工技术条件(1) 落梁顺序为中梁边梁边梁进行架设，运梁应根据架梁顺序进行，保证盖梁对称上载；(2) 梁体横移轨道应水平，两条轨道间距离应符合设计尺寸，误差不得大于15mm；(3) 架设第一片时，应注意梁体稳定可靠，对防护支撑要求较高，防护措施应安全可靠，万无一失；(4) 横移挡块应在满足架设情况下设置，不得有太多余量；(5) 当落定边梁后，应及时将机臂回返原位。(6) 梁间连接要及时施工，中隔板钢筋焊接及时，使用手控吊篮要
19、安装牢固。9.4.3.2 安全操作规程(1) 在梁体对孔后，应在降低梁体高度情况下作横移，增强架梁作业安全稳定性；(2) 当梁体临时放置时，应在梁体与垫石间加垫面积大的硬杂木板或纤维胶板，保护梁体砼，同时梁体支护应牢固可靠；(3) 在梁体下落过程中，应由专人看护卷筒放绳状态，如有夹绳、脱槽现象应立即停机处理；(4) 梁体临时放置时，在重新吊起前应检查护瓦安放状态，使其符合要求；(5) 在作机臂横移时，应先检查滑道是否有附着杂物，应及时清理，并涂好润滑脂，减小横移阻力；(6) 在单片粮就位后，严禁非工作人员上梁走动，避免危险；(7) 在两片梁相邻就位后，应及时对横隔联接板施焊，保持梁体稳定；梁间
20、应每隔5m将梁顶板钢筋焊成一体；(8) 梁间横隔板联接板施焊是高空作业，在吊篮操作安全可靠情况下，做好安全防护措施方可进行焊接作业；(9) 应保证1#柱、2#柱横移机构安全、同步，如有故障，应及时排除，且制动性能可靠；(10)在架设梁体时，应对施工现场设专人防护，禁止闲杂人等进入施工现场，在桥上作业时，递送物品，应事先联络好，用绳捆牢递送，禁止自由丢落。9.4.4 桥梁落位安支座(1) 橡胶支座在安装前，应检查产品合格证书中有关技术性能指标，如不符合设计要求时，不得使用；(2) 支座下设置的支座垫石，混凝土强度应符合设计要求，顶面要求标高准确，表面平整，同一垫石两块支座要处于同一标高（现场用水
21、平尺控制），避免支座发生偏歪、不均匀受力和脱空现象；(3) 安装前墩台支座垫石应清理干净；(4) 将设计图上表明的支座中心位置标在支承垫石及橡胶支座上，橡胶支座准确安放在支承垫石上，要求支座中心线同支承垫石中心线相重合；(5) 吊梁前，抹平的水泥砂浆必须干燥并保持清洁和粗糙。梁片到达就位支座上方后，应精细调整梁片和支座平面、立面上的位置，使之符合有关规定要求后落梁就位。9.4.5 解体当单项桥梁架设工程完工后，对架桥机解体应按以下顺序进行：(1) 解除动力电源，撤除机上动力、控制电缆；(2) 由机臂后端退出1#、2#吊梁行车；(3) 用吊机解除3#柱和0#柱，注意吊点位置，防止不平衡情况出现；
22、(4) 用风缆将1#柱拉紧；(5) 拆除1#曲梁与1#柱、2#曲梁与2#柱拴接，用25T吊抬起机臂落于空场地上，用垫木支垫好；(6) 拆除1#柱、2#柱柱身及走行机构；(7) 将所有构件拆成12m内单价，归类码放整齐，便于运输装车；(8) 清点栓接、销接件及机电元件，以免造成损坏丢失。10 劳力安排架桥班14人运梁班8人电工班3人养路班10人班长：赵志贤班长：洪建华班长：高树军班长：胡德友11 质量技术标准支座安装规定或允许偏差检查项目规定值或允许偏差支座中心与主梁中线（mm）应重合，最大偏差2高程符合设计要求支座四角高差（mm）1支座上下各部件纵轴线必须对正梁安装规定或允许偏差检查项目规定值
23、或允许偏差支座中心偏位（mm）5竖直度1.2%梁顶面纵向高程（mm）+8，-5（英文版 ） Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the
24、party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requ
25、irements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision
26、process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation
27、 of the two regulations of the party. and revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two party r
28、egulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the
29、partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jin
30、ping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an i
31、mportant role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely positi
32、ve advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not promine
33、nt, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, w
34、hich many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not spe
35、cific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two is li
36、kely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revisio
37、n process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear ins
38、tructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special m
39、eeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central minis
40、tries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central
41、Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two reg
42、ulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Commit
43、tee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles
44、 of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious
45、 discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping point