| 极限荷载作用下铁路钢筋混凝土旧桥的受力行为试验研究 |
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| 引用本文： | 钱永久,滕蕴珊.极限荷载作用下铁路钢筋混凝土旧桥的受力行为试验研究[J].西南交通大学学报,1994,29(4):423-428. |
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| 作者姓名： | 钱永久 滕蕴珊 |
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| 作者单位： | 西南交通大学结构工程研究所，沈阳铁路局 |
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| 摘 要： | 为了探讨既有ＲＣ桥梁的的承载能力，作者对一座具有３０年运营历史，且存在较为严重损伤的ＲＣ梁进行了破坏试验，探讨了在荷载及极限荷载作用下梁中的应力，挠度及裂缝宽度变化情况，并实测了极限荷载的大小以及混凝土和钢筋的实际强度。文中还给出了评定既有ＲＣ桥梁的国能力和损伤程度的方法。
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| 关 键 词： | 旧桥 铁路桥 结构力学 钢筋混凝土 |
Experimental Research on Flexural Behavior of a Deteriorated RC Bridge Under Ultimate Loading |
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| Quan Yongjiu.Experimental Research on Flexural Behavior of a Deteriorated RC Bridge Under Ultimate Loading[J].Journal of Southwest Jiaotong University,1994,29(4):423-428. |
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| Authors: | Quan Yongjiu |
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| Abstract: | In order to investigate the load capecity of existing concrete bridges,the bending tests of a 3O-year-old eoncrete railway bridge which was deteriorated seriously were conducted , from which the stresses,deflections and crack widthes under design loading and ultimate loading were observed,also the load capacity as well as the strength of concrete and steel. By analysing the test results , the method to evaluate the strength and the degree of deterioration of existing concrete railway bridges were given in this paper. |
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| Keywords: | old RC bridge structural behavior: evaluation |
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