| 钢结构厚板的冲击韧性研究 |
| |
| 引用本文： | 叶兵,李睿,罗仕庭,胡贤群,李晓章.钢结构厚板的冲击韧性研究[J].振动与冲击,2020,39(5):267-271. |
| |
| 作者姓名： | 叶兵 李睿 罗仕庭 胡贤群 李晓章 |
| |
| 作者单位： | 1.昆明理工大学建筑工程学院， 昆明650000；
2.中国电建集团昆明勘测设计研究院有限公司， 昆明650000 |
| |
| 基金项目： | 国家自然科学基金(51568029)。 |
| |
| 摘 要： | 随着钢材在我国大跨度桥梁工程中广泛应用,钢材板厚也日益增加。对于厚板钢材,厚度增大使钢板的应力应变状态发生变化,中心偏析现象严重,更容易降低钢板厚度方向的韧性,且在低温环境下,这种现象表现尤为突出。而现行相关规范缺乏对厚钢板冲击试验规定。根据厚板低温冲击韧性试验数据,对钢板厚度变化对冲击韧性影响进行了探讨,并且利用Boltzmann函数对试验结果进行拟合,为钢结构厚板工程中冲击韧性取值提供参考作用。
|
| 关 键 词： | 钢结构厚板 冲击韧性 韧脆转变温度 低温 |
Impact toughness of thick steel plates |
| |
| YE Bing,LI Rui,LUO Shiting,HU Xianqun,LI Xiaozhang.Impact toughness of thick steel plates[J].Journal of Vibration and Shock,2020,39(5):267-271. |
| |
| Authors: | YE Bing LI Rui LUO Shiting HU Xianqun LI Xiaozhang |
| |
| Affiliation: | 1.Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650000, China;
2.Kunming Engineering Corporation Planning Limited Power China, Kunming 650000, China |
| |
| Abstract: | At present, steel products are widely applied in long-span bridge engineering of our country, thickness of steel plate day-to-day increases.Increase in steel plate’s thickness causes change of its stress-strain state and serious central segregation phenomena to more easily reduce toughness in steel plate’s thickness direction, this phenomenon is particularly prominent under low-temperature environment.The current code lacks provisions for impact tests of thick steel plates.Here, according to test data of low-temperature impact toughness of thick steel plates, effects of steel plate’s thickness variation on its impact toughness were explored.Boltzmann function was used to fit test results.The study results provided a reference for choosing impact toughness value of thick steel plates in engineering. |
| |
| Keywords: | thick steel plate impact toughness ductile-brittle transition temperature low temperature |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《振动与冲击》浏览原始摘要信息 |
|
点击此处可从《振动与冲击》下载全文 |
|
