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Study on the Bearing Capacity and Influence Factors of Concrete Columns with Reinforcing Steel Bars in Core

机译：核心钢筋混凝土柱承载力及影响因素研究

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摘要

The concrete column with reinforcing bars in core refers that allocate longitudinal reinforcement and stirrup in the core area of the cross section of the concrete column. In this paper, a normal concrete column and a core reinforcement column are analyzed, In the same conditions (the same material, the same section and slenderness ratio) the cross section is analyzed by Xtract cross section analysis software. Through comparison and analysis of the yield surface curve and curve of moment-curvature, it can be drawn that: compared to normal concrete column, the core reinforcement column can significantly improve the bearing capacity and deformation capacity of the whole column; if the volume stirrup rate and the longitudinal reinforcement ratio of the core area increase, the range of the yield surface curve of the column will grow, the bearing capacity of the component will increase. As for seismic design of short columns under high axial pressure, it has a good engineering significance for improving the load-carrying and deformation ability of the short column and meeting the requirements of seismic design.
机译：具有芯中加强杆的混凝土柱是指在混凝土柱的横截面的芯区域中分配纵向加强和箍筋。本文通过XTract横截面分析软件分析了正常的混凝土柱和芯加强柱，在相同的条件下（相同的材料，相同的部分，相同的截面和细分比）分析横截面。通过对屈服表面曲线和力矩曲率曲线的比较和分析，可以绘制：与普通混凝土柱相比，芯加强柱可以显着提高全柱的承载力和变形容量;如果核心面积增加的体积搅拌速率和纵向增强率增加，则柱的屈服表面曲线的范围将生长，组件的承载力将增加。至于在高轴压下的短柱的地震设计，它具有良好的工程意义，用于提高短柱的承载和变形能力并满足地震设计要求。

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