钢结构安装工程施工质量旁站监理方案

钢结构安装工程施工质量旁站监理方案一、 检查依据：1、钢结构工程施工质量验收规范 GB50205-20012、钢结构设计规范 GBJ17-883、建筑钢结构焊接规程 JGJ81-20024、高层民用建筑钢结构技术规程 JGJ99-985、钢结构高强度螺栓连接设计、施工及验收规程 JGJ82-916、建设工程监理规范 GB50319-20007、建筑工程施工质量验收统一标准 GB50300-20018、经施工图审查批准的施工图设计文件9、建设工程承包合同文件、委托监理合同文件10、经批准的施工组织设计、监理规划和监理实施细则二、 主要检查内容：1、旁站监理前对相关情况的审查： 钢结构安装工程施工旁站监理前相关情况检查填写津监（钢）-01表（见附表）（1） 钢构件应符合设计要求和GB50205-2001规范的规定；（2） 运输等造成的构件变形及涂层脱落应进行矫正和修补；（3） 构件合格证和制作的各检验批资料等齐全；（4） 钢柱等主要构件标记齐全；（5） 设计要求做强度试验的构件试验报告；（6） 地脚螺栓的允许偏差符合要求；（7） 基础支撑面的允许偏差符合要求；（8） 定位轴线的允许偏差符合要求；（9） 安装、验收的测量仪器定期鉴定情况；（10） 安装的测量校正应进行工艺试验和评定；（11） 钢构件和连接材料贮放条件；（12） 高强度螺栓连接摩擦面抗滑移系数厂家试验报告和安装前复验报告；（13） 高强度螺栓连接预拉力或扭矩系数厂家试验报告和安装前复验报告；（14） 首次采用的钢材和焊接材料的焊接工艺评定报告；（15） 施工交底；（16） 工序交接手续；（17） 安装方案。上述工作由施工单位自检后，在施工前24小时向监理单位提交旁站申请书；监理单位进行审查，并将审查结果通知施工单位。若符合要求，总监理工程师指定监理人员并签署意见。津监（钢）-01表情况审查表有施工单位项目负责人签字认可。2、旁站监理时检查的主要内容：（1） 施工部位；（2） 本班在岗工程负责人、质量检查员；（3） 全数检查本班焊工考试合格证、认可范围、有效期、起重工上岗证；（4） 检查焊条烘干情况及记录填写；（5） 高强度螺栓连接摩擦面的平整度和清洁度；（6） 高强度螺栓穿入方式和方向及外露长度；（7） 扩螺栓孔检查；（8） 要求熔透的对接和角对接组合焊缝的焊脚尺寸，焊缝外观质量；（9） 扭矩扳手使用状态；（10） 高强度螺栓初拧终拧质量；（11） 垫板规格与柱底板接触情况；（12） 安装顶紧面；（13） 现场组对精度。上述工作监理人员进行旁站检查并在上、下午各两次记录。监理日记由责任监理员按日及时、客观、真实地填写，不得编造，必要时由照相或摄影配合监理日志的记录内容。总监审核后存监理档案。上述工作结束后，施工单位按规范进行质量验收检查，并填写检验批质量验收记录表。而后监理工程师对检验批质量进行检查并评估、签字。三、 旁站监理要点：1、见证取样送样项目：（1） 钢材和焊接材料的复验；（2） 高强度螺栓扭矩系数复验；（3） 摩擦面抗滑移系数复验；2、有关安全功能的检验：（1） 焊缝质量：外观缺陷：焊缝表面不得有裂纹、焊瘤等缺陷，一级、二级焊缝不得有表面气孔、夹渣、弧坑裂纹、电擦伤等缺陷。且一级焊缝不得有咬边、未焊满、根部收缩的缺陷。三级焊缝按二级焊缝标准进行外观检查。内部缺陷：设计要求全焊透的一、二级焊缝应采用超声波探伤进行内部缺陷的检查，超声波探伤不能对缺陷作出判断时，应采用射线探伤，其内部缺陷分级及探伤方法应符合现行国家标准钢焊缝手工超声波探伤方法和探伤结果分级法GB11345或钢熔化焊对接接头射线照相和质量分级GB3323的 规定。一级焊缝探伤比例为100%，二级焊缝探伤比例为20%。焊缝尺寸检查。（2）大六角头高强度螺栓施工质量检查：大六角头高强度螺栓连接副终拧完成1小时后、48小时内应进行终拧扭矩检查，检查的扭矩值与施工扭矩值的偏差在10%内为合格。（3）柱脚锚栓紧固：地脚螺栓紧固应牢固、可靠、外露丝扣不应少于两扣；高层钢结构底层柱的地脚螺栓螺母止退可采取双螺母或用电焊将螺母焊牢；建筑物的定位轴线、基础上的柱的定位轴线和标高、地脚螺栓的规格和位置应符合设计要求。二次灌浆：在形成空间单元后，应及时对柱底板和基础顶面的空隙进行细石混凝土、灌浆料等二次浇灌。（4）主要构件变形：钢主梁、次梁及受压杆件的垂直度和侧向弯曲度的允许偏差应符合GB50205-2001规范表10.3.3的规定。（见下表）钢主梁、次梁及受压杆件的垂直度和侧向弯曲度的允许偏差（mm）项 目跨中的垂直度侧向弯曲失高f允许偏差H/250且不应大于15.0l30m30m60m1/1000，且不应大于10.01/1000，且不应大于30.01/1000，且不应大于50.0钢柱安装的允许偏差应符合11.3.2规定。（见下表） 柱子安装的允许偏差（mm）项 目柱底轴线对定位轴线的偏移柱子定位轴线单节柱的垂直度允许偏差3.01.0H/1000，且不大于10.03、连接材料验收：（1）焊接材料焊接材料的品种、规格、性能等应符合现行国家产品标准和设计要求。焊条外观不应有药皮脱落、焊芯生锈等缺陷；焊剂不应变潮结块。焊接采用的焊条、焊丝和焊剂，应与主体金属强度相适应。当不同程度的钢材连接时，可采用与低强度钢材相适应的焊接材料。焊条、焊丝、焊剂、电渣焊熔嘴等焊接材料与母材的匹配应符合设计要求及国家现行行业标准建筑钢结构焊接技术规程JGJ81的规定。焊条、焊剂、药芯焊丝、焊嘴等在使用前，应按其产品说明书及焊接工艺的规定进行烘焙和存放。（2） 连接用紧固标准件钢结构连接用高强度大六角头螺栓连接副、扭剪型高强度螺栓连接副、普通螺栓、铆钉、自攻钉、拉铆钉、射钉、锚栓（机械型和化学试剂型）、地脚锚栓等紧固标准件及螺母、垫圈等标准配件，其品种、规格、性能等应符合现行国家产品标准和设计要求。高强度大六角头螺栓连接副和扭剪型高强度螺栓连接副出厂时应分别随箱带有扭矩系数和紧固轴力（预拉力）的检验报告。高强度螺栓连接副，应按包装箱配套供货，包装箱上应标明批号、规格、数量及生产日期。螺栓、螺母、垫圈外观表面应涂油保护，不应出现生锈和沾染赃物，螺纹不应受损伤。4、需要确定工艺的项目：（1） 施工单位对其首次采用的钢材、焊接材料、焊接方法、焊后热处理等，应进行焊接工艺评定，并应根据评定报告确定焊接工艺。（2） 对于需要进行焊接预热或焊后热处理的焊缝，其预热温度或后热温度应符合国家现行有关标准的规定或通过工艺试验确定。预热在焊道两侧，每侧宽度均应大于焊件厚度的1.5倍以上，应不应小于100mm；后热处理应在焊后立即进行，保温时间应根据板厚按每25mm板厚1h确定。（3） 施工单位对其采用的焊钉和钢材焊接应进行焊接工艺评定，其结果应符合设计要求和国家现行有关标准的规定。瓷环应按其产品说明书进行烘焙。（4） 安装的测量校正、高强度螺栓安装、负温度下施工及焊接工艺等，应在安装前进行工艺试验或评定，并应在此基础上制定相应的施工工艺或方案。（5） 凡符合以下情况之一者，应在钢筋结构构件制作及安装施工之前进行焊接工艺评定：国内首次应用于钢结构工程的钢材（包括钢材牌号与标准相符但微合金强化元素的类别不同和供货状态不同，或国外钢号国内生产）；国内首次应用于钢结构的焊接材料；设计规定的钢材类别、焊接材料、焊接方法、焊接形式、焊接位置、焊后处理制度以及施工单位所采用的焊接工艺参数、预后热措施等各种参数的组合条件为施工企业首次采用。5、钢结构安装检验批验收的基础（1） 钢结构安装检验批应在进场验收和焊接连接、紧固件连接、制作等分项验收合格的基础上进行验收。（2） 钢柱等主要构件的中心线及标高基准点等标记应齐全。6、单层钢结构安装的基础和支承面的验收要求：（1） 建筑物的定位轴线、基础轴线和标高、地脚螺栓的规格及其紧固应符合设计要求。（2） 基础顶面直接作为柱的支撑面和基础顶面预埋钢板或支座作为柱的支撑面时，其支撑面、地脚螺栓（锚栓）位置的允许偏差应符合下表的规定。支撑面、地脚螺栓（锚栓）位置的允许偏差（mm）项 目允许偏差支撑面标高3.0水平线1/1000地脚螺栓（锚栓）螺栓中心偏移5.0预留孔中心偏移10.0（1）采用杯口基础时，杯口尺寸的允许偏差应符合下表的规定杯口尺寸的允许偏差（mm）项目允许偏差底面标高0.0-5.0杯口深度H 5.0杯口垂直度H/100，应不大于10.0位置10.0（3） 地脚螺栓（锚栓）尺寸的偏差应符合下表的规定。地脚螺栓（锚栓）的螺纹应受到保护。地脚螺栓（锚栓）尺寸的允许偏差（mm）项 目允许偏差螺栓（锚栓）露出长度+30.00.0螺纹长度+30.00.07、钢结构焊接还应符合以下要求：（1） 焊工必须经考试合格并取得合格证书。持证焊工必须在其考试合格项目及其认可范围内施焊。（2） T型接头、十字接头、角接接头等要求熔透的对接和角对接组合焊缝，其焊脚尺寸不应小于t/4（t为板厚）；设计有疲劳验算要求的吊车梁或类似构件的上翼缘连接焊缝的焊脚尺寸为t/2，且不应大于10mm。焊脚尺寸的允许偏差为04mm。（3） 焊成凹形的角焊缝，焊缝金属与母材间应平缓过度；加工成凹形的角焊缝，不得在其表面留下切痕。（4） 焊缝观感应达到：外形均匀、成型较好，焊道与焊道、焊道与基本金属间过度较平滑，焊渣和飞溅物基本清除干净。8、高强度螺栓施工还应符合下列规定：（1） 高强度螺栓拧紧要求高强度螺栓连接副的施拧顺序和初拧、复拧扭矩符合设计要求和国家现行行业标准钢结构高强度螺栓连接的设计施工及验收规程高强度螺栓的拧紧，应分初拧和终拧。对于大型节点应分初拧、复拧和终拧。复拧扭矩应等于初拧扭矩。高强度螺栓的安装应按一定顺序施拧，宜由螺栓中央顺序向外拧紧，并应在当天终拧完毕。高强度螺栓拧紧时，初拧扭矩不得小于终拧扭矩的30%；不得用高强度螺栓兼做临时螺栓，以防损伤螺纹引起扭矩系数的变化。高强度螺栓的安装应在结构构件中心位置调整后进行，其穿入方向应以施工方便为准，并力求一致。高强度螺栓连接副组装时，螺母带圆台面的一侧应朝向垫圈有倒角的一侧。对于大六角头高强度螺栓连接副组装时，螺栓头下垫圈有倒角的一侧应朝向螺栓头。（2） 高强度螺栓连接副终拧后，螺栓丝扣外露应为23扣，其中允许有10%的螺栓丝扣外露1扣或4扣。（3） 高强度螺栓连接摩擦面应保持干燥、整洁，不应有飞边、毛刺、焊接飞溅物、焊疤、氧化铁皮、污垢等，除设计要求外摩擦面不应涂漆。（4） 高强度螺栓应自由穿入螺栓孔。高强度螺栓孔不应采用气割扩孔，扩孔数量应征得设计同意，扩孔后的孔径不应超过1.2d（d为螺栓直径）（5） 螺栓孔孔距的允许偏差应符合下表的规定。螺栓孔孔距的允许偏差（mm）螺栓孔孔距5005011200120130003000同一组内任意两孔间距离1.01.5-相邻两组的端孔间距离1.52.02.53.0注：1.在节点中连接板与一根杆件相连的所有螺栓孔为一组；2.对接接头在拼接板一侧的螺栓孔为一组；3.在相邻节点或接头间的螺栓孔为一组，但不包括上述两款所规定的螺栓孔；4.受弯构件翼缘上的连接螺栓孔，每米长度范围内的螺栓孔为一组。（6） 螺栓孔孔距的允许偏差超过规定允许的偏差时，应采用与母材材质相匹配的焊条补焊后重新制孔。9、单层钢结构的安装还应符合下列规定：（1） 钢柱安装的允许偏差应符合GB50205-2001规范附录E中表E.0.1的规定（2） 当钢梁安装在混凝土柱上时，其支座中心对定位轴线的偏差不应大于10mm。（3） 顶紧的节点接触面要求：设计要求顶紧的节点，接触面不应少于70%贴紧，且边缘最大间隙不应大于0.88mm。（4） 现场焊缝组对间隙的要求：现场焊缝组对间隙的允许偏差应符合下表的规定。现场焊缝组对间隙的允许偏差（mm）项 目允许偏差无垫板间隙+3.00.0有垫板间隙+3.0-2.0（5） 钢结构主要构件安装就位后，应立即进行校正、固定。当天安装的钢构件应形成稳定的空间体系。（6） 安装时，必须控制屋面、楼面、平台等的施工荷载和冰雪荷载等严禁超过梁、桁架、楼面板、平台铺板等的承载能力。（7） 吊车梁或直接承受动力荷载的梁其受拉翼缘、吊车桁架或直接承受动力荷载的桁架其受拉弦杆上不得焊接悬挂物和卡具等。（8） 吊车梁和吊车行架不应下挠。（9） 钢吊车梁或直接承受动力载荷的类似构件，其安装的允许偏差应符合GB50205-2001附录E中表E0.2的规定。（10） 下列钢构件的挠度不应超过下表所列的允许值。受弯构件的允许挠度项次构件类别允许挠度1手动或电动葫芦的轨道梁L/4002有重轨（重量等于或大于38kg/m）轨道的工作平台梁有轻轨（重量等于或大于24 kg/m）轨道的工作平台梁L/600L/4003楼盖和工作平台梁（第2项除外）、平台板（1） 主梁（包括设有悬挂起重设备的梁）（2） 楼梯梁（3） 平台板 L/400 L/250 L/1504屋盖檩条（1） 无积灰的瓦楞铁和石棉瓦屋面（2） 压型钢板、有积灰的瓦楞铁和石棉瓦等屋面（3） 其他屋面 L/150L/200L/2005墙架构件（1） 支柱（2） 抗风行架（作为连续支柱的支承时）（3） 砌体墙两（4） 压型钢板、瓦楞铁和石棉瓦墙面的横梁（水平方向）（5）带有玻璃窗的横梁（竖直和水平方向） L/400L/1000L/300L/200L/20010.施工质量不符合本规范要求时的处理：（1） 当钢结构工程施工质量不符合本规范要求时，应重新进行验收；经返工重做或更换构（配）件的检验批，应重新进行验收；经有资质的检测单位检测鉴定能够达到设计要求的检验批，应予验收；经有资质的检测单位检测坚定达不到设计要求，但经原设计单位核算认可能够满足结构安全和使用功能的检验批，可予以验收；经返修或加固处理的分项、分部工程，虽然改变外形尺寸但仍能满足安全使用要求，可按处理技术方案和协商文件进行验收。（2）通过返修或加固处理仍不能满足安全使用要求的钢结构分部工程，严禁验收。会 签 表监理单位：编 制 人：审 核 人：编制日期：施工单位：施工负责人：签收日期：（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 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 requirements, 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 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 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 regulations 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 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 Jinping 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 important 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 positive 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 prominent, 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, which 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 specific, 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 likely 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 revision 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 instructions. 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 meeting 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 ministries 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 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 regulations 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 Committee 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 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 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 pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohibition 52 are not allowed to about the content of the negative list moved into synchronization amendment . Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the first insists on a positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the party and the National Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the , a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, the main contents can be summarized as four must eight code. Lead part, reiterated on ideal and faith, fundamental purpose, the fine traditions and work style, noble sentiments, such as four must the principle of requirements, strong tone of self-discipline, The higher request for 6 and supervised tenet, the foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party members how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance bitter music, put forward the four norms. Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the vital few, around the clean politics, from civil servant of the color, the exercise of power, moral integrity, a good family tradition and other aspects of the leadership of the party members and cadres of the four norms to fully adapt to the strictly requirements, reflects the according to the regulations governing the law of recognition of deepening, the realization of