墩身钢筋安装技术交底3.31.doc

【精品文档】如有侵权，请联系网站删除，仅供学习与交流墩身钢筋安装技术交底3.31.精品文档. 京沪高速铁路交通工程技术交底 编号：工 程 项 目新建京沪高速铁路工程合 同 号土建一标单位工程名称天津特大桥4施工单位十三工区施工部位DK172+000-DK190+145.05交底日期2009.04.01交底地点墩身钢筋安装技术交底一、编制依据双线流线型圆端实体墩（图号：叁通桥（2007）4330-B）双线单圆柱桥墩（图号：叁通桥（2007）4334- B）二、主要技术参数本段桥墩为双线流线型圆端实体墩，截面尺寸分为2×6m，2.3×6m，2.5×6m；双线单圆柱桥墩，截面尺寸为4m，墩身高度1.0m13.5m。钢筋仅计列主筋伸入基础150cm的数量，墩身主筋与基础连接引起的钢筋增量按图纸要求计算。三、钢筋加工及绑扎要求1钢筋在钢筋加工场集中下料、弯制和焊接，载重汽车运输至施工现场进行绑扎。钢筋的下料、弯折、绑扎和焊接均按照设计图纸及施工规范操作，并且做到综合考虑，避免不必要的浪费。钢筋加工应符合现行铁路混凝土与砌体工程施工规范（TB10210）中的有关技术要求。2.钢筋必须经抽检合格，焊接试件必须试验合格。3.钢筋加工前调直，无局部弯曲，调直不允许用卷扬机或车拉，一律采用钢筋调直机完成；表面无削弱钢筋截面的伤痕；油渍、漆污、水泥浆、浮皮、铁锈等物应提前清除干净。4.箍筋弯制前应按照设计半径制作相应转盘，弯起应平滑、规则、成圆形。加强固筋接头处采用双面搭接焊，焊缝长度不得小于5d。搭接接头钢筋的端部应在垂直于箍筋整体截面的截面上预弯，使搭接钢筋的轴线位于同一弧线上。5.电焊条为502或者506型，禁止用422型，主筋接头处采用双面搭接焊，焊接长度不得小于5d。搭接接头钢筋的端部应预弯，使搭接钢筋的轴线位于同一直线上。6.搭接焊焊缝饱满，焊缝深度不得小于6mm；宽度不得小于14mm，。定位应采用2点固定，定位焊缝应离搭接端部20mm以上。7.焊接时应在搭接钢筋的一端引弧，在搭接钢筋的另一端收弧，弧坑应填满。要保证焊接地线与钢筋接触良好，主焊缝与定位焊缝应熔合良好。8.钢筋接头应设置在钢筋承受应力较小处，并应分散布置，相互错开。并应避开钢筋弯曲处，距离弯曲点不应小于20cm。9.焊接的钢筋骨架在运输、安装和浇筑混凝土过程中不得有变形、开焊或松脱现象，并应符合下列规定：9.1.在钢筋的交叉点处，加强箍筋用点焊与主筋连接。螺旋筋采用直径22#的扎丝绑扎，按照逐点改变绕丝方向一字型、（8字型）交错扎结，或双对角线（十字型）方式扎结。9.2.钢筋骨架的箍筋，应与主筋垂直围紧。10钢筋按图纸加工,要符合设计图纸的规格型号、数量，钢筋接头设置在承受应力较小处，并要分散布置，布置在“同一截面”内受力钢筋接头的截面面积，占受力钢筋总截面面积的百分率要符合下列规定：A、焊接接头在受弯构件的受拉区不得大于50%；B、绑扎钢筋在构件的受拉区不得大于25%；C、在同一钢筋上应少设接头，“同一截面”内，同一根钢筋上不得超过一个接头。钢筋连接采用双面搭接焊，焊接长度不小于5倍的钢筋直径。焊工必须是持证上岗。焊接施工时，使用合格和标准的焊机、焊条，接地线要接触良好，不得损伤主筋。焊缝要饱满，焊渣要清除。11钢筋的绑扎质量应牢固、无漏绑和松动现象，保证钢筋骨架的整体性，避免在浇筑混凝土时钢筋骨架发生变形和走样。钢筋骨架要用混凝土垫块垫平，保证钢筋保护层厚度。12承台顶面预埋钢筋头和拉环，用于控制墩身模板位置和设置缆风绳。13在浇注承台或加台混凝土前,埋设墩身钢筋。采用钢管架做临时固定。5.2.14钢筋保护层垫块位置与数量在墩台底面与侧面按每平方米4块布置。钢筋加工及安装允许偏差序号项 目允许偏差（mm）检验方法1受力钢筋全长±10尺量2受力钢筋排距离±5尺量，两端中间各一处3同一排受力钢筋的间距±204分布钢筋间距±20尺量连续3处5箍筋间距绑扎骨架±20焊接骨架±106弯起点位置（加工偏差±10mm包括在内）30尺量7钢筋保护层的厚度+5-2尺量，中间各2处14墩柱高9.0m以内的主筋，不采用焊接连接，直接加工预埋在承台内。9.0m以上的主筋，全部采用焊接接头，一次绑扎成型。托盘、顶帽钢筋绑扎成钢筋笼后整体吊装。交底接受人交底人审核人（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 < code > adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; < rule > 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. < code > and < Regulations > 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 < Chinese Communist Party discipline and Punishment Regulations > 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 party's leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the < code > and < rule >, reflects the party's 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 party's eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of < the ICAC guidelines > in < in 1997 Leaders as members of the Communist Party of China clean politics certain criteria (Trial) > 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. < rule > is in 1997 < Chinese Communist Party disciplinary cases (Trial) > 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 < the criterion of a clean and honest administration > and < rule > 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, < code > and < Regulations > revision of the basic principles of two party regulations revision work and implement the party's 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 < low political criterion > and < Regulations >, 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 < rule > and < rule >. 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 < code > and < rule > 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 party's ideals and beliefs, excellent traditional style. The revised the < code > 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 party's 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 < code > and < rule > modified and needs to grasp several key problems (a) < code > < code > 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 < cases >. 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 < code > 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 People's solemn commitment. > < criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the < code >, 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 party's 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" < > < norm norm. "The Party member's self-discipline norms" and "party members and leading cadre clean fingered self-discipline norms," a total of eight, collectively referred to as the "eight". "Four must" and "eight" of the content from the party constitution and Party's several generation of leaders, especially Xi Jinping, general secretary of the importa