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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流建筑工程后浇带施工技术.精品文档.建筑工程后浇带施工技术初探摘要：近年来，随着我国经济的快速增长，城市化步伐的加快，建筑施工技术的飞速进步，高层建筑越来愈多，同时，人们对建筑工程施工与建筑物整体性的要求也逐步提高，从而使得浇带技术在建筑工程中的应用也愈发广泛，并起着重要作用。本文主要是对我国建筑工程后浇带施工技术进行简要分析，从中找出问题所在，并提出相应的施工策略。关键字：建筑工程；后浇带施工技术；现状；策略abstract: in recent years, as chinas rapid economic growth, speed up
2、 the pace of urbanization, construction technology rapid progress, high-rise building more and more, and at the same time, people in building construction and building of integrity requirement also gradually raise, thus make the post-pouring belt technology in architectural engineering application b
3、ecomes widely, and plays an important role. this paper is mainly to the construction project of the pouring belt construction technology is simply analyzed and find out the problems, and put forward the corresponding construction strategy.key word: building engineering; of the pouring belt construct
4、ion technology; the present situation; strategy中图分类号：tu198文献标识码： a 文章编号：在建筑施工过程中,人们通常依靠设置变形缝来解决钢筋混凝土温度应力以及收缩变形等,但是随着变形缝设置也会引起例如双柱、双梁、双墙等一些缺陷,从而不同程度地影响到建筑物的外观和平面布局。因此，在建筑工程施工中,必须结合工程的实际情况,用混凝土浇筑密实成连续整体的结构体,也就是后浇带,这样，不仅能有效地解决高低结构的沉降变形协调问题，还可以解决大体积混凝土浇筑中的施工问题。然而，在实际应用中的设计和施工中后浇带施工技术仍然有一些问题，例如应力分析和温度差异问
5、题有待进一步研究和讨论，需要人们对其进行更深层次的探讨。一、后浇带施工技术的主要功能以及适用范围对于建筑物的高度差较大的情况,在施工中可以根据具体施工要求与结构设计，并不需要设置永久变形缝时,可采用设置后浇带的施工技术。同时，在超长建筑结构或是公共建筑如果需要对钢筋混凝土进行整体浇筑时,结构中也会出现后浇带的应用。本文主要从以下两点对后浇带的主要功能及其适用的范围进行简要分析：1、减小温度收缩影响对于刚浇筑完不久的混凝土，在其硬结过程中会出现自收缩现象,由于各个方向的散热不均匀，从而造成已建成的结构的热膨冷缩。在施工后的12个月温差对结构的作用是正常的。但是，当建筑结构变形受到约束，温差引起热
6、应力，从而产生应力分布不均或不同的设计效果，有严重裂缝的组成部分，严重影响施工的整体性能。如果设置了后浇带,能够有效地减小温度收缩影响，因为在施工过程中混凝土可以自由收缩,从而尽可能地降低各方向的散热不均匀性，这样就减少了收缩应力,混凝土的抗拉强度就可以满足抵抗温度应力的需要,从而提高了结构抵抗温度变化的能力。2、解决沉降差对于高层建筑和裙房的基础结构设计，如果在施工中需要将二者连成整体,但在施工过程则需用后浇带将二者暂时断开的情况,一旦建筑主体结构施工基本结束,并需要进行大部分沉降量完成施工时,再在连接处浇灌混凝土将高低层连成整体。进行相关设计时，分别由两个阶段的情况考虑，即强度校核以及在全
7、面解决后期甚至造成了额外的内部力量。连接之前和之后的力量，可以用来调整压力，调整时差，适应海拔和恶劣的施工和设计的调整措施。二、建筑工程后浇带的施工策略1、浇筑结构混凝土后垂直施工缝的处理。对于浇筑结构混凝土后的垂直施工缝处理，当混凝土达到初凝状态，采用高压水冲洗，除去浮浆，杂物和冲洗暴露总额的部分，钢丝网混凝土终凝后，再次用高压水冲洗施工缝表面立即清楚；木模板的垂直施工缝，可用高压水冲，根据施工现场条件和监管要求，尽可能拆模并及时对于已硬化的昆凝土表面进行光滑处理。同时，还要对较严重的蜂窝或孔洞应进行修补，在后浇带混凝土浇筑前应用喷枪清理表面。2、在建筑工程后浇带施工过程中，必须严格按照施工
8、图预留施工后浇带,预留施工后浇带的两侧，同时要保证混凝土不疏松以及混凝土浇筑时不跑浆,并为最终提高后浇带施工技术提供可靠保障。但对于浇基础梁连接由建筑物的高度差决定，在主体建筑的建设中，上部结构的梁和板预留后，再进行微膨胀浇混凝土施工步骤，使它们连接成一个整体施工中对钢筋要采取保护措施,防止钢筋被踩弯或压弯。如果施工中出现踩弯或压弯现象,在浇筑混凝土前钢筋要矫正,使之符合相关施工标准，同时，并对接缝处混凝土进行认真的振捣工作,以求密实,钢筋应保证准确位置并要求连续不断。此外，后浇带两侧适宜用钢筋支架铅丝网或单层钢板网隔断对于板,双层钢筋应设置支架，单层钢筋下应设置垫块,对于梁、底部钢筋也应加垫
9、块，钢筋支架的钢筋直径及间距设置需根据构件断面大小而定,以支撑稳定为原则,铅丝网的网眼一般不宜过大,以防止灌注混凝土时跑浆。3、在施工中做好混凝土选料与浇筑工作选料工作。混凝土的材质是后浇带施工的保障，并且显得越来越重要，因此，必须严格把好材质选料关，在材料的选择上应选用无收缩的混凝土，使混凝土符合施工设计要求，借此避免新、老混凝土出现接缝收缩开裂现象。同时，还要保证所配制的混凝土与先浇混凝土相比在强度上前者应比后者高出一个强度等级，使之能够适合不同需要的施工工序，进而提高施工效率。在混凝土浇筑过程中，后浇带的浇筑应通过建筑物的整个横截面，目的在于断开所有的梁、墙和楼板，避免它们之间的接触而引
10、起应力集中，促使后浇带的两边都能实现自由伸缩或沉降，处理上切忌采用藕断丝连、要断不断的形式，该形式容易集中应力破坏后浇带。浇筑过程中，拌和混凝土必须做到均匀，入模后振捣密实，加强浇筑后的养护，切实地提高后浇带施工的质量。4、加大对施工现场人员的管理。正常情况下，施工人员管理是实现有效的现场管理和质量控制的一个关键因素。建筑工程施工项目建设中，相关企业必须通过组织和建立质量管理和控制措施对设计和施工管理人员进行优化管理，从而能够建立建筑施工企业和建设项目的管理水平，提高施工效率该项目具有高标准、高效率和高创新的施工团队是建设质量保证的工程项目的基础。因为，工程项目中良好施工团队的形成和培养在于施
11、工团队中氛围的创造和培养，并定期对员工进行专业培训，切实地提高他们的施工水平，然后，通过和谐的氛围的营造给予施工成员以归属感和责任感。双管齐下，通过精神或是物质上的奖励和管理实现，通过轻松而良好的氛围的营造构建团队的基本信任感和凝聚力，提高施工企业的核心竞争力。此外，还应充分尊重员工的合理权利渴求，在建立了宽松的发展氛围的基础之上通过严格的制度措施的选择和管理建立高效率的施工团队，并为施工企业最终实现经济效益与社会效益最大化提供可靠保障。三、结语综上所述，随着我国城市化进程的加快，建筑施工项目日益增多，鉴于后浇带的范围日益广泛，不仅用于高层主楼与低层裙房连接处，对于存在差异沉降问题或者是钢筋混
12、凝土的收缩变形与混凝土的收缩应力的建筑结构，采用后浇收缩带或后浇温度带能够有效地提高施工质量，并大大地简化了施工步骤，后浇带施工显得越来越重要。因此，为了切实地提高建筑工程的后浇带施工技术，相关施工企业必须总结前人的经验，并根据具体的工程实际，采用各种有效地施工方法，不断提高后浇带的施工技术。参考文献：1 赵兴才. 建筑工程中后浇带施工技术的分析及应用j. 中国新技术新产品, 2009,(13) .2 谭清. 建筑工程施工中后浇带施工技术j. 科技资讯, 2009,(12) .3 陈平. 后浇带施工技术在建筑工程中的应用j. 中外建筑, 2008,(04) .4 黄宗文. 后浇带施工技术在建筑
13、工程中的应用j. 中国新技术新产品, 2009,(16) .5 钱时华. 对建筑后浇带法施工技术若干问题的研究j. 今日科苑, 2009,(16) .6 王凤雷,曹迪. 浅谈后浇带施工的技术措施j. 中小企业管理与科技(下旬刊), 2009,(12) .（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 s
14、trategic 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
15、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:
16、 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
17、 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 gui
18、delines 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 inheritan
19、ce 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 sess
20、ion, 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 Ja
21、nuary 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 h
22、ard 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 la
23、w 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 constructi
24、on 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 regul
25、ations 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, d
26、oes 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
27、 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
28、 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 f
29、or 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
30、 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
31、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 Gener
32、al 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 Comm
33、ittee 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 wis
34、dom 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
35、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
36、. 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
37、 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 genera
38、l 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
39、, 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
40、 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
41、 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 majorit
42、y 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 p
43、artys 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 w
44、ith 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
45、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
46、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
47、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