钢闸门面板弹塑性调整系数的研究

Adjustment Factors for Elastoplasticity of Steel Gate Plates

通过对弹塑性调整系数α规范值、按弹塑性薄板理论和弹性薄膜理论确定的值，以及有限元计算和实验研究结果的全面分析，提出四边固支钢面板的极限承载力应按承受弯应力、剪应力和中曲面内应力的大挠度中等刚度板的屈服模式确定。在确定弹塑性调整系数。合理值时，应考虑材料的强度储备和结构的极限承载力两个方面，从而求出更切合实际的弹塑性调整系数α的理论值，此值可供设计和修订规范时参考。

Basedon the comprehensive analysis of the research achievements of thestandard method,the finite element method,theory of small deflection and model test,this paper stiggests that the ultimate load of the rectangular steel plate fixed at foursides should be determined by the yield model of the large deflection plate with moderaterigidity including the bending stress,shearing stress and tensile stress. And both thematerial strength and the ultimate load of the structure should be taken into considera-tion so as to figure out the theoretical values of elast plastic adjustment factors, whichcan offer the references for the designing and revision of the standard.