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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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车辆荷载作用下脱空地基上CRCP板的挠度与应力研究
, PP. 8-13
Keywords: 道路工程,挠度与应力公式,半波正弦荷载,脱空薄板,车辆集中荷载
Abstract:
运用弹性薄板理论,根据连续配筋混凝土路面板挠度等效与应力等效原则,将作用于板中的车辆集中荷载通过傅里叶级数展开为等效的半波正弦荷载,提出了车辆荷载作用下脱空的连续配筋混凝土路面板的竖向位移和应力公式。结果表明集中荷载作用下连续配筋混凝土板的最大挠度与荷载大小、板的宽度成正比,与板的厚度、横向弹性模量成反比,其中板的宽度与厚度影响显著。板的最大应力与荷载大小、板的宽度成正比,与板的厚度成反比,其中板的厚度影响显著。在脱空地基路段,应优先选择增加板的厚度来降低板的挠度和应力。分析结果为脱空的连续配筋混凝土路面的结构设计提供理论基础。
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