| 锈蚀槽钢梁荷载-挠度关系研究 |
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| 引用本文： | 于峰,黎德光,徐国士,程安春. 锈蚀槽钢梁荷载-挠度关系研究[J]. 钢结构, 2013, 28(2) |
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| 作者姓名： | 于峰 黎德光 徐国士 程安春 |
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| 作者单位： | 安徽工业大学建筑工程学院,安徽马鞍山,243002 |
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| 基金项目： | 国家自然科学基金项目，安徽省教育厅自然科学基金重点项目，安徽省自然科学基金项目，马鞍山市科学技术项目(马科2012，安徽工业大学研究生创新基金项目 |
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| 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。
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| 关 键 词： | 槽钢 锈蚀 承载力 荷载-挠度关系曲线 计算方法 |
STUDY ON LOAD-DEFLECTION RELATIONSHIP OF CORRODED CHANNEL STEEL BEAMS |
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| Yu Feng , Li Deguang , Xu Guoshi , Cheng Anchun. STUDY ON LOAD-DEFLECTION RELATIONSHIP OF CORRODED CHANNEL STEEL BEAMS[J]. Steel Construction, 2013, 28(2) |
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| Authors: | Yu Feng Li Deguang Xu Guoshi Cheng Anchun |
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| Abstract: | 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. |
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| Keywords: | channel steel corrosion bearing capacity load-deflection relationship curves calculating method |
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