摘要
对锈蚀槽钢梁荷载-挠度关系曲线进行研究。试验研究表明:试件剪跨比和高跨比对锈蚀槽钢梁的荷载-挠度关系曲线有较大影响。锈蚀槽钢梁的荷载-挠度关系曲线可以分为2个阶段:第一阶段为弹性段,其斜率与剪跨比有关;第二阶段为屈服强化段,其斜率与第一阶段基本呈线性关系。在试验研究基础上,提出锈蚀槽钢梁承载力和挠度的计算方法,建立槽钢梁荷载-挠度关系曲线计算模型。该模型形式简单,便于工程实际应用。
The load-deflection relationship curves of corroded channel steel beams were studied. Test results show that the shear-span ratio and height-span ratio have great influence on the load-deflection relationship curves. The load-deflection relationship curves may be divided into two sections： the first section is the elastic stage, the slope is related to the shear-span ratio; the second section is the yielding and strengthening stage, the slope between the first stage and the second stage has a linear relationship. Based on the experimental study, calculating methods of bearing capacity and deflection of corroded channel steel beams were proposed, then the load-deflection relationship model was established. The proposed model is not only simple, but also convenient to be used in actual projects.
出处
《钢结构》
2013年第2期78-81,共4页
Steel Construction
基金
国家自然科学基金项目(51008001)
安徽省教育厅自然科学基金重点项目(KJ2010A046)
安徽省自然科学基金项目(1208085QE88)
马鞍山市科学技术项目(马科2012(6))
安徽工业大学研究生创新基金项目(2011017)
关键词
槽钢
锈蚀
承载力
荷载-挠度关系曲线
计算方法
：channel steel
corrosion
bearing capacity
load-deflection relationship curves
calculating method
