| 反复荷载作用下双向受剪框架柱的刚度退化 |
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| 引用本文： | 王铁成,陈恒超,郭永亮,徐明贵.反复荷载作用下双向受剪框架柱的刚度退化[J].天津大学学报(自然科学与工程技术版),2005,38(12):1058-1062. |
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| 作者姓名： | 王铁成 陈恒超 郭永亮 徐明贵 |
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| 作者单位： | [1]天津大学建筑工程学院,天津300072 [2]广州市道路扩建工程办公室,广州510030 |
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| 摘 要： | 双向受剪框架柱在反复荷载作用下的刚度退化是结构抗震分析中的重要内容．该文通过对不等肢配箍框架柱在低周施加反复荷载作用试验，提出了在加载初期刚度退化不明显，斜裂缝出现以后，刚度退化程度加大的特征．并指出反复荷载作用下框架柱的剪切破坏属于脆性破坏．结果表明，双向受剪柱的刚度退化与单向受剪柱比较无明显差别．
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| 关 键 词： | 框架柱 双向受剪 刚度退化 |
| 文章编号： | 0493-2137（2005）12-1058-05 |
| 收稿时间： | 2004-05-13 |
| 修稿时间： | 2004-05-132004-10-24 |
Rigidity Degeneration of RC Column Under Two-Way Horizontal Cyclic Loads |
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| WANG Tie-cheng, CHEN Heng-chao , GUO Yong-liang , XU Ming-gui.Rigidity Degeneration of RC Column Under Two-Way Horizontal Cyclic Loads[J].Journal of Tianjin University(Science and Technology),2005,38(12):1058-1062. |
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| Authors: | WANG Tie-cheng CHEN Heng-chao GUO Yong-liang XU Ming-gui |
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| Institution: | 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Road Exploration Engineering Office of Guangzhou, Guangzhou 510030, China |
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| Abstract: | Rigidity degeneration of RC column is important in the analysis of anti-earthquake for the whole structure. Based on the experiment of columns under low-frequency cyclic loads, this paper discovers that rigidity degeneration is not obvious during the early loading stage but increases after the crack appears. Also the result indicates that the shear failure under two-way cyclic loads is brittle failure. It is shown that there is no obvious difference between the rigidity degeneration of column under two-way shear and that under one-way shear. |
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| Keywords: | RC column two-way shear rigidity degeneration |
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