带钢拉伸横向屈曲及拉伸极限载荷的研究

研究了对于在4个边进行了简单支持约束的带钢的临界拉伸横向屈曲应力,并通过修正拉伸横向屈曲应力系数K,得到了不同支撑条件下的临界拉伸应力计算公式,继而对带钢的拉伸横向后屈曲进行了研究,最后引入了有效宽度概念来计算带钢不致发生屈服失效的极限载荷。

Research on Tensile Cross Buckling and Tensile Limit Load of Steel Strips

After the critical stress for tensile buckling of four-edge simply supported steel strips is studied , we got the critical tensile buckling stress calculation for nonsimply-supported steel strips by changing the coefficient K in critical buckling stress formula . Consequently , the post buckling behavior of the strips were studied, then the effective width was introduced to calculate the limit load for steel strips before strip yielding.