钢桥面铺装的拉应力分析

Tensile Stress Analysis of Steel Bridge Deck Surface

针对典型的钢桥桥面铺装体系 ,采用SAP有限元软件 ,分析了铺装层内的拉应力的变化规律。分析表明 ,铺装层内的最大横向拉应力远远大于最大纵向拉应力 ,最大横向拉应力通常出现在梯形加劲肋肋顶的铺装层表面 ;

The variation of tensile stress in the surface for a typical steel bridge deck surface system is analyzed by means of SAP. It is indicated that the transverse maximum tensile stress is far larger than the longitudinal and the transverse maximum tensile stress usually appears on the surface over the top of trapezoid reinforced rib. At the same time the surface modulus has also a great effect on the tensile stress.