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为验证现行相关规范(规程)是否适用于钢骨超高强混凝土结构,以钢骨超高强混凝土框架结构为研究对象,应用大型通用有限元分析软件ABAQUS进行地震弹塑性分析。以结构自振周期、顶点位移、基底剪力、层间位移角为评价指标,讨论了建筑高度、地震波作用方向、填充墙、混凝土强度等级对框架结构地震弹塑性的影响。结果表明:1随着框架结构建筑高度增加,结构自振周期增大,顶点位移增大,基底剪力最大值增大,层间位移角增大;2与Y向地震作用相比,X向地震作用下结构自振周期较小,顶点位移最大值较小,层间位移角最大值较小,基底剪力最大值比较接近;3增加填充墙后,自振周期减小,顶点位移最大值减小,基底剪力最大值增大,层间位移角最大值减小;4柱采用较低强度等级混凝土的框架结构,自振周期增大,顶点位移最大值增大,层间位移角最大值增大,基底剪力最大值比较接近;5框架模型层间位移角计算结果满足现行规范(规程)的限值要求。钢骨超高强混凝土框架结构设计可参考现行规范(规程)的要求进行。
In order to verify whether the relevant rules (rules) are applicable to the SRC structures, the seismic analysis of the SRC structures is carried out by using the large-scale finite element analysis software ABAQUS. The influence of building height, seismic wave direction, infilled wall and concrete strength grade on the seismic elasto-plasticity of frame structures is discussed based on the period of natural vibration, the displacement of vertices, the shear force of basement and the displacement of interlayer. The results show as follows: 1 As the height of the frame structure increases, the natural period of the structure increases, the displacement of the vertex increases, the maximum shear force of the base increases, and the displacement angle of the layer increases. 2 Compared with the Y- Under the action of earthquake, the period of natural vibration of the structure is smaller, the maximum displacement of the apex is smaller, the maximum displacement angle of the interlayer is smaller and the maximum shear force of the foundation is relatively close. 3 After the infill wall is added, the natural vibration period decreases and the peak displacement The maximum value of the base shear force increases and the maximum displacement angle decreases. For the 4-column frame structure with lower strength grade concrete, the period of natural vibration increases, the maximum value of the peak displacement increases, and the maximum displacement angle between layers increases The maximum value of the base shear is relatively close. The calculation results of the inter-layer displacement angle of the 5-frame model meet the requirements of the current code (code). The design of SRC frame structure can be done by reference to the requirements of the current code (Regulation).