Rectangular Concrete Stress Distribution in Ultimate Strength Design
Rectangular Concrete Stress Distribution in Ultimate Strength Design
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DOI：
10.14359/8051
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发表时间：
1961-02
期刊：
影响因子：
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通讯作者：
A. Mattock;L. Kriz;E. Hognestad
中科院分区：
文献类型：
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作者：
A. Mattock;L. Kriz;E. Hognestad
基于混凝土受压区的等效矩形应力分布，并与1956年ACI建筑规范附录基本一致，提出了一种广泛适用的极限强度设计理论。这个理论的特点是简单而又不失准确性。提出的极限强度设计方法适用于各种结构的混凝土梁和柱，受到各种组合的弯曲和轴向荷载。计算出的极限强度与实验确定的极限强度在广泛的变量范围内进行了比较，结果非常一致。结果表明，本文提出的矩形应力分布理论的扩展，能够以足够的精度预测结构设计实践中可能遇到的II类结构混凝土截面的极限弯曲和压缩强度，包括异形截面和其他异常情况。
An ultimate strength design theory of broad applicability is developed, based on an equivalent rectangular stress distribution in the concrete compression zone and in general accord with the Appendix to the 1956 ACI Building Code. The theory is characterized by simplicity without significant loss of accuracy. The proposed method of ultimate strength design is applied to a wide variety of structural concrete beams and columns, subject to various combinations of bending and axial load. Calculated ultimate strengths are compared with experimentally determined ultimate strengths for a wide range of variables, and an excellent agreement results. It is concluded that the proposed extension of the rectangular stress distribution theory permits prediction with sufficient accuracy of the ultimate strength in bending and compression of a II types of structural concrete sections likely to be encountered in structural design practice, including odd-shaped sections and other unusual cases.