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水泥混凝土桥梁沥青混凝土铺装层的疲劳性能
引用本文:高英, 黄晓明, 许涛. 水泥混凝土桥梁沥青混凝土铺装层的疲劳性能[J]. 交通运输工程学报, 2006, 6(1): 39-43.
作者姓名:高英  黄晓明  许涛
作者单位:东南大学 交通学院, 江苏 南京 210096
基金项目:中国博士后科学基金;江苏省交通科研项目
摘    要:为了提高水泥混凝土桥面沥青混凝土铺装的使用寿命, 以复合梁试验评价不同的桥面沥青铺装结构的疲劳性能, 采用有限元法分析荷载作用下复合梁试件具有与实际梁体一致的应力响应, 并采用复合梁疲劳试验测试不同桥面沥青铺装层组合的疲劳寿命。由试验结果可知, 复合梁破坏模式与桥梁铺装实际破坏形式一致, 相同的铺装结构在加入防水粘结层后寿命可增长8倍, 铺装材料加入纤维可使疲劳寿命增长20%以上; SMA和纤维加筋的AC组合是本次试验中的最优结构。

关 键 词:道路工程   水泥混凝土桥面   复合梁   沥青混凝土铺装   结构组合   疲劳性能
文章编号:1671-1637(2006)01-0039-05
收稿时间:2005-09-06
修稿时间:2005-09-06

Fatigue Characteristic of Asphalt Concrete Pavement on Cement Concrete Bridge Deck
GAO Ying, HUANG Xiao-ming, XU Tao. Fatigue Characteristic of Asphalt Concrete Pavement on Cement Concrete Bridge Deck[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 39-43.
Authors:GAO Ying  HUANG Xiao-ming  XU Tao
Affiliation:School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China
Abstract:In order to improve the life of cement concrete bridge deck pavement,compound beam test was used to research the fatigue characteristics of hot mixed asphalt(HMA) courses on bridge deck,finite element analysis(FEA) method was employed to make the mechanical response of compound beam accord with that of actual bridge deck under the same load,the fatigue test was done for compound beams with different pavement structures.Test result shows that the destroy process of compound beam is similar with that of actual bridge deck,the structure with waterproof and cohesive course has a fatigue life,which is 8 times longer than that of the structure without the course,the addition of fiber in the HMA can increase at least 20% of its fatigue life,the combination structure of stone matrix asphalt(SMA) and fiber reinforced asphalt concrete(AC) is the best pavement structure in the test.2 tabs,11 figs,9 refs.
Keywords:road engineering pavement  cement concrete bridge deck  compound beam  HMA pavement  structures' combination  fatigue characteristic  
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