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薄钢板的抗剪力由三个部分组成:剪切屈曲、张力场和翼缘的作用。对前两者进行讨论研究。并已知恒定温度下钢板在高温下的抗剪力。然而,在很多实际应用中,钢板的温度分布并不统一。介绍在18个不均匀温度场的12块钢板的有限元分析。同时,提出一个可以预测非均匀升温下薄钢板的抗剪力的设计方法。这个设计方法的基本原理是减小参考温度下钢板的设计强度,参考温度一般高于平均温度,但低于钢板的最高温度。
Shear force of the thin steel plate consists of three parts: shear buckling, tension field and the role of the flange. Discuss the first two. The shear resistance of steel at constant temperature is known. However, in many practical applications, the temperature distribution of the steel plate is not uniform. The finite element analysis of 12 plates in 18 non-uniform temperature fields is presented. At the same time, a design method that can predict the shear resistance of sheet steel under non-uniform heating is proposed. The basic principle of this design method is to reduce the reference design temperature of the steel plate, the reference temperature is generally higher than the average temperature, but lower than the maximum temperature of steel.