| Q345低合金结构钢的高温强度试验研究 |
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| 引用本文： | 屈立军,王跃琴,李焕群. Q345低合金结构钢的高温强度试验研究[J]. 中国人民武装警察部队学院学报, 2006, 22(2): 20-22 |
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| 作者姓名： | 屈立军 王跃琴 李焕群 |
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| 作者单位： | 武警学院消防工程系 河北廊坊065000(屈立军，李焕群)，西安科技大学 陕西西安710054(王跃琴) |
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| 基金项目： | 国家重点基础研究发展计划(973计划);公安部项目 |
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| 摘 要： | 采用恒温加载试验方法对钢结构建筑常用的Q345低合金结构钢的高温强度进行试验研究,采用切线交点法确定钢材有效屈服强度,并与其它方法强度取值进行对比,给出钢材高温强度回归公式,为钢结构建筑的抗火分析提供依据。
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| 关 键 词： | Q345结构钢 高温 强度 恒温加载 |
| 文章编号： | 1008-2077(2006)02-0020-03 |
| 修稿时间： | 2005-12-15 |
Experimental Research of High Temperature Strength of Low-alloyed Structural Steel Q345 |
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| QU Li-jun,WANG Yue-qin,LI Huan-qun. Experimental Research of High Temperature Strength of Low-alloyed Structural Steel Q345[J]. Journal of the Chinese People's Armed Police Force Academy, 2006, 22(2): 20-22 |
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| Authors: | QU Li-jun WANG Yue-qin LI Huan-qun |
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| Abstract: | In this study,experimental research has been carried out to investigate strength of low-alloyed steelQ345 used in steel structure buildings at elevated temperature by using the steady state tensile test method.It givesthe effective yield strength by adopting tangent-intersection method,and has a comparison with the strength ob-tained by using other methods.Regression formula has been drew,which provides basis for fire resistance analysis ofsteel structure buildings. |
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| Keywords: | structural steel Q345 elevated temperature strength steady state test |
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