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轻质高强微膨胀混凝土加固拱桥的动力分析
引用本文:韩万水,黄平明,兰燕.轻质高强微膨胀混凝土加固拱桥的动力分析[J].长安大学学报(自然科学版),2005,25(4):44-47,65.
作者姓名:韩万水  黄平明  兰燕
作者单位:1. 同济大学,桥梁工程系,上海,200092
2. 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064
摘    要:探讨了采用普通混凝土、普通微膨胀混凝土和轻质高强微膨胀混凝土3种材料加固的拱桥的动力响应,建立了有限元计算模型并给出了相应的分析方法。对各种模型进行了振动频率计算,并应用反应谱法和时程分析法计算了其地震反应。结果表明,采用轻质高强微膨胀混凝土加固的拱桥适应变形能力强,荷载力分布均匀,具有良好的抗震性能。

关 键 词:桥梁工程  拱桥  加固  轻质高强微膨胀混凝土  反应谱法  时程分析法
文章编号:1671-8879(2005)04-0044-04
收稿时间:2004-04-05
修稿时间:2004年4月5日

Dynamic analysis of arch bridges strengthened with high strength micro-expansive lightweight aggregate concrete
HAN Wan-shui,HUANG Ping-ming,Lan Yan.Dynamic analysis of arch bridges strengthened with high strength micro-expansive lightweight aggregate concrete[J].JOurnal of Chang’an University:Natural Science Edition,2005,25(4):44-47,65.
Authors:HAN Wan-shui  HUANG Ping-ming  Lan Yan
Abstract:Dynamic response of strengthened bridges with ordinary concrete, micro-expansive ordinary concrete and high strength micro-expansive lightweight aggregate concrete is discussed. The feasible finite element model and method of computation are put forward. Computation of vibration frequency is carried out and seismic response is analyzed by use of response-spectrum method and time history method. According to the analysis and comparison, it shows that it is very useful to resist earthquake by use of high strength micro-expansive lightweight aggregate concrete.2 tabs, 9 figs, 6 refs.
Keywords:bridge engineering  arch bridge  strengthening  high strength micro-expansive lightweight aggregate concrete  response-spectrum method  time history method
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