钢结构塑性设计与钢材的应变硬化性能

PLASTIC DESIGN OF STEEL STRUCTURE AND STRAIN HARDENING PERFORMANCE OF STEEL

从钢结构塑性设计基本原理入手 ,分析了塑性设计中引入材料理想弹塑性假定的实质。以此为基础 ,首先从理论上解释了没有应变硬化性能的材料不能用于结构塑性设计的原因 ,然后又用试验数据说明了应变硬化性能过弱的材料也不能用于塑性设计。

On the primary principles of the plastic design of a steel structure,the real purpose of adopting the hypothesis that the material used in the plastic design being of ideal elastic\|plastic property is revealed in this paper.Furthermore,the reason that why the material without any strain hardening performance cannot be used in plastic design is explained.Then,a test data shows that the material with over\|weak performance on strain hardening is not fit to plastic design,either.At last, a way of selecting proper sorts of steel for the plastic design of a steel structure is suggested here.