ECC-混凝土组合机场道面力学性能及疲劳寿命分析

taptap下载安装安卓学报 ›› 2023, Vol. 41 ›› Issue (5): 27-33.

• 机场工程建设与运维 • taptap点点手机网页下一篇

ECC-混凝土组合机场道面力学性能及疲劳寿命分析

吴堃，林熙杰，陈宇，李长辉

（taptap下载安装安卓交通科学与工程学院，天津300300）

收稿日期:2023-05-19 修回日期:2023-08-30 出版日期:2023-11-16 发布日期:2023-11-16
作者简介:吴堃（1991—），男，安徽合肥人，讲师，博士，研究方向为工程结构防灾、减灾与加固技术研究.
基金资助:
taptap下载安装安卓科研启动基金项目（2020KYQD37）

Analysis of mechanical properties and fatigue life of ECC-concrete composite airport pavement

WU Kun, LIN Xijie, CHEN Yu, LI Changhui

(College of Transportation Science and Engineering, CAUC, Tianjin 300300, China)

Received:2023-05-19 Revised:2023-08-30 Online:2023-11-16 Published:2023-11-16

摘要/Abstract

摘要： 机场水泥混凝土道面板由于受外界环境和人为因素影响，在使用5~7年后就会出现表面开裂等早期病害，并导致其他病害的加速发展，使其使用寿命远达不到设计的20~30年。为解决道面板表面开裂的问题，同时兼顾经济性的因素，设计了一种上层为工程水泥基复合材料（ECC，engineeredcementitionscom鄄posite）下层为普通混凝土的组合道面板。使用ABAQUS软件模拟飞机轮载作用在组合道面板上的力学性能并分析其使用寿命。结果表明：随着ECC层厚度的增加，道面板的弯沉量会略微增加，但由于ECC具有良好的抗拉、抗折性能，道面板的使用寿命会明显提升；ECC层厚度从100mm增大到200mm时，道面板的疲劳寿命提高约5.2倍。

关键词: 工程水泥基复合材料（ECC）, 机场道面板, 道面开裂, 有限元模拟, 疲劳寿命分析

Abstract: Due to the influence of external environment and human factors, the airport cement concrete pavement panels will encounter early diseases such as surface cracking after 5 to 7 years of use and accelerate the development of other diseases, which makes its service life far less than the designed 20 to 30 years. In order to solve the problem of cracking on the surface of the pavement panel, a composite pavement with engineered cementitions composite (ECC) material on the top and ordinary concrete on the bottom is designed, while the economic factor is also considered. The ABAQUS software is used to simulate the mechanical properties of the composite pavement panel loaded by the aircraft wheel load and the service life is analyzed. The results show that with the increase of the thickness of ECC layer, the deflection of the pavement panel will slightly increase. The service life of the pavement panel will significantly increase because of the excellent tensile and flexural properties of ECC. When the thickness of ECC layer increases from 100 mm to 200 mm, the fatigue life of the pavement is increased by about 5.2 times.

Key words: engineered cementitions composite (ECC), airport pavement panel, pavement cracking, finite element simula鄄 tion, fatigue life analysis

中图分类号:

V351.11
V414

吴堃, 林熙杰, 陈宇, 李长辉. ECC-混凝土组合机场道面力学性能及疲劳寿命分析[J]. taptap下载安装安卓学报, 2023, 41(5): 27-33.

WU Kun, LIN Xijie, CHEN Yu, LI Changhui. Analysis of mechanical properties and fatigue life of ECC-concrete composite airport pavement[J]. Journal of Civil Aviation University of China, 2023, 41(5): 27-33.

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ECC-混凝土组合机场道面力学性能及疲劳寿命分析

Analysis of mechanical properties and fatigue life of ECC-concrete composite airport pavement

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