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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (10): 1863-1869    DOI: 10.3785/j.issn.1008-973X.2010.10.004
岩土工程、土木及建筑工程     
深层混凝土搭板处治路桥过渡段的动力响应
项贻强, 孙筠
浙江大学 土木工程系,浙江 杭州 310058
Dynamic response of bridge approach treated with deep-seated concrete slab
XIANG Yi-qiang, SUN Yun
Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
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摘要：

以深层混凝土过渡板处治的路桥过渡段为主要研究对象,评估2种不同路桥过渡段处治方式的动力冲击作用,建立桥头搭板在不同置深情况下的路桥过渡段有限元数值分析模型,研究在车辆冲击荷载作用下路桥过渡段的动力响应及搭板的隔振效果.结果表明,传统的桥头搭板在车辆冲击荷载的作用下,受到的冲击作用明显,深置的混凝土过渡板由于板上土体分散部分的冲击荷载,受到的冲击作用较小,且深置的混凝土过渡板对桥台的影响较小,因此采用深层混凝土搭板处治路桥过渡段时能够提高混凝土搭板的耐久性.
Abstract:

The dynamic finite element analysis models of bridge approach with different treatment methods and concrete slab at different depth were established in order to assess the dynamic impact action of two different treatment methods at bridge approach, which is respectively treated with deepseated and traditional approach slab. The dynamic response of bridge approach and the vibration isolation effect of concrete slab were analyzed. Results show that the dynamic response of traditional approach slab under impact load of vehicle is more obvious than the deepseated concrete slab, because for the soil on the deepseated concrete slab distributing the impact action. The deepseated concrete slab has less effect on the abutment. The bridge approach treated with the deepseated concrete slab can enhance the durability of concrete slab.
出版日期: 2010-10-01
:  U 445.7  
基金资助:

浙江省交通厅科技计划资助项目（2008H36））.
作者简介: 项贻强（1959—），男，浙江杭州人，教授，博导，从事桥梁健康监测与控制、评估管理、桥梁加固与维护研究.
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引用本文:

项贻强, 孙筠. 深层混凝土搭板处治路桥过渡段的动力响应[J]. J4, 2010, 44(10): 1863-1869.

XIANG Yi-Jiang, SUN Jun. Dynamic response of bridge approach treated with deep-seated concrete slab. J4, 2010, 44(10): 1863-1869.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.10.004    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I10/1863

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