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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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水泥路面板高温隆起的力学机理分析
, PP. 1-5
Keywords: 道路工程,水泥路面板,热弹性力学,路面力学,高温隆起
Abstract:
为了避免或延缓水泥路面板在夏季产生高温隆起现象,从力学机理的角度,探讨了水泥路面板在夏季高温隆起的原因,并举例计算水泥路面板板顶与板底全年最大的应力差及水泥路面板压曲临界应力。结果表明,仅从强度的角度来看,如胀缝设置不当,则旧水泥路面板在夏季都是危险的；如果胀缝功能得不到保证,厚度26cm左右的水泥路面板,在夏季出现隆起的临界板长约为85m。因此,建议在南方地区,对于4级及4级以下公路(特别是低造价的农村公路)广泛采用的素混凝土或低配筋混凝土路面,胀缝按80m间距来设置是适宜的。
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