钢筋混凝土框架夹心节点受力性能与施工处理方法研究进展

发布时间：2018-07-13 20:38

【摘要】：节点核心区采用同梁等强的低强度混凝土浇筑的夹心节点和采用同柱等强的高强度混凝土浇筑的传统节点相比,施工简单且易保证质量,但是我国规范对其规定过于简单,没有明确的验算方法,对其深入研究已成为一种很迫切的工程需求。本文从钢筋混凝土框架夹心节点的受力性能、相关规范规定及加强措施与施工处理方法三个方面,对国内外研究工作及主要成果进行归纳总结,并在此基础上分析有待进一步研究的问题。指出,在不采取或采取一定的加强措施条件下,夹心节点有满足承载力和抗震性能要求的可能性,但是目前国内相关研究较少,对影响其性能的因素研究还不够系统,尚未取得公认的研究成果。因此,有必要对其受力性能与施工处理方法进行深入的理论和试验研究。
[Abstract]:In the core area of the joints, the sandwich joints with low strength concrete with the same beam and the traditional joints with high strength concrete pouring with the same column have simple construction and easy quality assurance, but the regulations of our code are too simple. There is no clear method of checking calculation, and it has become an urgent engineering demand to study it in depth. In this paper, the internal and external research work and main achievements are summarized from three aspects: the mechanical behavior of reinforced concrete frame sandwich joints, the relevant specifications, the strengthening measures and the construction treatment methods. On this basis, the problems to be further studied are analyzed. It is pointed out that it is possible for sandwich joints to meet the requirements of bearing capacity and seismic performance without adopting or taking certain strengthening measures, but at present there are few related studies in China, and the research on the factors affecting their performance is not systematic enough. No accepted research results have been obtained. Therefore, it is necessary to carry out theoretical and experimental research on its mechanical properties and construction treatment methods.
【作者单位】：北京工业大学工程抗震与结构诊治北京市重点实验室;
【基金】：国家自然科学基金资助项目(项目编号:91315301-03,51378039,51378037)
【分类号】：TU375.4;TU755

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