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首页> 外文会议>Pacific structural steel conference >Analysis on Normal Section Loaded Performance of Honeycomb Steel-reinforced Concrete Asymmetrical Cross-shaped Columns
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Analysis on Normal Section Loaded Performance of Honeycomb Steel-reinforced Concrete Asymmetrical Cross-shaped Columns

机译：蜂窝状钢筋混凝土非对称十字形柱正截面受力性能分析

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The honeycomb steel reinforced concrete(HSRC)cross-shaped column is a new special-shaped column, which is very suitable for today's steel structure residential house. In order to wholly explore the normal section bearing capacity and deformation characteristics of this component,a monotonous loading test was carried out firstly in this paper to study the normal section bearing capacity, deformation characteristics and failure modes of the component under ec centrically axial compression. Then the paper carried on the non-linear finite element analysis on HSRC cross shaped column with multi-parameter by the ANSYS procedure to inspect the influence of main factors, such as hole ratio in steel web, the steel ratio, the reinforcement ratio, the concrete strength and so on, on the normal section bearing capacity and their laws. Based on these, some suggestions for design were given. As the study shown, the failure modes of the component are similar to that of compressed RC column with small eccentricity; the Plane Hy pothesis in cross-section would be still applicable for HSRC cross-shaped column if the loads were within 80% of ultimate bearing strength;along with the increase of the steel ratio, the reinforcement ratio, the concrete strength and the steel strength, the normal section ultimate capacity of the new column increases,but it will drop with the in crease of the slenderness ratio,the loading angle and the eccentricity; the loading angle and the eccentricity are ex tremely sensitive to the normal section bearing performance of cross-shaped columns. Hence, large eccentricity and adverse loading angle should be avoided in practical constructions.
机译：蜂窝钢混凝土十字形柱是一种新型的异形柱，非常适用于当今的钢结构住宅。为了全面探讨该构件的正截面承载力和变形特性，本文首先进行了单调加载试验，研究了该构件在偏心轴向压缩下的正截面承载力，变形特性和破坏模式。然后通过ANSYS程序对多参数HSRC异形柱进行了非线性有限元分析，考察了钢网孔率，钢率，配筋率，抗拉强度等主要因素的影响。混凝土强度等，对正常截面的承载力及其规律。在此基础上，提出了一些设计建议。研究表明，该构件的破坏模式与偏心率小的压缩RC柱相似。如果荷载在极限承载力的80％以内，则横截面的平面假设仍然适用于HSRC十字形柱;并且随着钢比例，钢筋比例，混凝土强度和钢强度的增加，新柱的正常截面极限承载力增加，但随着细长比，加载角和偏心率的增加而下降;加载角度和偏心度对十字形柱的法向截面承载性能极为敏感。因此，在实际结构中应避免大的偏心率和不利的加载角度。

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