考虑现浇楼板影响的钢筋混凝土框架结构抗震设计方法研究
发布时间：2018-10-26 17:13
【摘要】：钢筋混凝土框架结构是一种很常见的结构形式,由于其设计理论成熟,能够根据实际需要对建筑空间进行灵活布置,利于安排较大空间等优点,在我国的实际工程中得到广泛应用。为了研究现浇楼板对钢筋混凝土框架结构抗震性能的影响,本文参考了大量国内外学者的相关成果,总结并分析各种有效翼缘宽度的建议取值,最终选取一种有效翼缘宽度设计出六组不同的空间框架模型,运用SAP2000程序分别进行静力弹塑性方法分析,研究塑性铰出现规律,结构破坏机制。依据我国现行《建筑抗震设计规范》(GB50011-2010)中有关保证钢筋混凝土框架结构实现“强柱弱梁”的规定,本文针对不同抗震等级的二、三级钢筋混凝土框架模型,考虑不同大小柱端弯矩增大系数,研究其对框架抗震性能的影响,并提出对实际设计可行的建议。影响钢筋混凝土框架结构抗震性能的因素有很多,本文在前人的基础上,从楼板对梁端负弯矩影响的角度去研究结构的抗震性能,得出一些有益的结论,为今后规范的修订以及相关工程应用提供相应的参考。
[Abstract]:Reinforced concrete frame structure is a very common structural form. Because of its mature design theory, it can arrange the building space flexibly according to the actual needs, which is beneficial to the arrangement of large space. It is widely used in practical projects in our country. In order to study the effect of cast-in-place floor slab on seismic behavior of reinforced concrete frame structure, this paper summarizes and analyzes the suggested values of effective flange width by referring to the related achievements of a large number of scholars at home and abroad. Finally, six groups of different spatial frame models are designed by choosing an effective flange width. The static elastic-plastic method is used to analyze the plastic hinge and the failure mechanism of the structure is studied by using SAP2000 program. According to the provisions of the current Code for Seismic Design of buildings (GB50011-2010) in China, which guarantee the realization of "strong column and weak beam" in reinforced concrete frame structures, this paper aims at the second and third grade reinforced concrete frame models with different earthquake resistance grades. Considering the increasing coefficient of bending moment at the end of columns of different sizes, the influence of the coefficient on the seismic behavior of the frame is studied, and some feasible suggestions for practical design are put forward. There are many factors that influence the seismic behavior of reinforced concrete frame structure. Based on the previous research, this paper studies the seismic behavior of reinforced concrete frame structure from the angle of the negative moment of floor slab on the beam end, and draws some useful conclusions. For the future revision of the code and related engineering applications to provide the corresponding reference.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU375.4;TU352.11
本文编号：2296425
[Abstract]:Reinforced concrete frame structure is a very common structural form. Because of its mature design theory, it can arrange the building space flexibly according to the actual needs, which is beneficial to the arrangement of large space. It is widely used in practical projects in our country. In order to study the effect of cast-in-place floor slab on seismic behavior of reinforced concrete frame structure, this paper summarizes and analyzes the suggested values of effective flange width by referring to the related achievements of a large number of scholars at home and abroad. Finally, six groups of different spatial frame models are designed by choosing an effective flange width. The static elastic-plastic method is used to analyze the plastic hinge and the failure mechanism of the structure is studied by using SAP2000 program. According to the provisions of the current Code for Seismic Design of buildings (GB50011-2010) in China, which guarantee the realization of "strong column and weak beam" in reinforced concrete frame structures, this paper aims at the second and third grade reinforced concrete frame models with different earthquake resistance grades. Considering the increasing coefficient of bending moment at the end of columns of different sizes, the influence of the coefficient on the seismic behavior of the frame is studied, and some feasible suggestions for practical design are put forward. There are many factors that influence the seismic behavior of reinforced concrete frame structure. Based on the previous research, this paper studies the seismic behavior of reinforced concrete frame structure from the angle of the negative moment of floor slab on the beam end, and draws some useful conclusions. For the future revision of the code and related engineering applications to provide the corresponding reference.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU375.4;TU352.11
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