后浇带的设计、施工与接缝（With the joint design and post pouring construction）.docVIP

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后浇带的设计、施工与接缝（With the joint design and post pouring construction）.doc

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后浇带的设计、施工与接缝（With the joint design and post pouring construction）

后浇带的设计、施工与接缝（With the joint design and post pouring construction） Design, construction and joint of the back pouring band At present, in the construction engineering settlement, in order to solve the needs of high and main body and the skirt of the room between reinforced concrete shrinkage and temperature deformation of concrete stress and other issues, the two poured concrete after pouring method has been widely used in construction engineering. However, there are still many problems in practical application, especially in the inconsistent design and construction regulations of the post pouring belt. Because of the pouring belt is designed to solve the senior high school entrance examination into the adjusting method of settlement or expansion, two times through the construction process so that only the whole process from design to construction attach great importance to make the post pouring belt (joint) to meet the design intent, to play its due role. 1 Analysis of the practice of the present pouring band (seam) In the design of high-rise buildings, almost all the methods of post pouring belt are adopted, but the difference is that the design drawings of the post pouring belt (seam) are not the same. China standard, such as C2BJ108 - 87 underground waterproof technical specifications, JC2J3 91 standard design and construction of reinforced concrete high-rise building structure and JC2J6 - 80 standard design and construction of box foundation of high-rise buildings and building structure data for different versions of the focus, do the detailed provisions on the following cast structure and band requirements. But because they are composed of different specifications prepared by the editorial group, the content and requirements of many different, have different views, there are some unavoidable differences. It mainly displays in the following aspects. (1) the width of the back pouring band has 800 and two 1000mm regulations; (2) the joint of the back pouring band