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钢柱的荷载主要通过柱肢及由主、次靴梁组成的梁格传到底板,再由底板传到混凝土基础上。由于柱肢和靴梁是刚性的,而底板是柔性的,主要的基础反力都集中在靴梁下面。这一点与混凝土柱的刚性底座的情况有所不同。国内外文献多数属于研究后者,只有少数研究柔性底座问题的。本文的目的,是通过必要的实验和分析,提出符合钢结构柱脚传力情况的混凝土基础承载能力的一些具体建议。
The load of the steel column is mainly transmitted to the bottom plate through the column limbs and the beam grid consisting of the main and secondary shoe beams, and then transmitted from the bottom plate to the concrete foundation. Because the column limb and the shoe beam are rigid and the bottom plate is flexible, the main base reaction forces are concentrated under the shoe beam. This is different from the case of a rigid base of a concrete column. Most of the domestic and foreign literature belong to the study of the latter, and only a few have studied the issue of flexible bases. The purpose of this paper is to provide some concrete suggestions for carrying capacity of concrete foundations in accordance with the transmission force of the column foot of a steel structure through necessary experiments and analysis.