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现行水泥混凝土路血温度翘曲应力计算,大都限于弹性理论的范围。本文根据温度应力作用时间远远大于荷载应力作用时间这一实际情况,假设,文克勒地基和水泥混凝土板均具有徐变特性,并导出了相应的温度翘曲应力计算公式。利用本文给出的有关图表计算温度翘曲应力与现行威氏公式同样方便,但比后者更为合理。
The current warpage stress of cement concrete road is mostly limited to the range of elastic theory. In this paper, based on the fact that the stress time is much longer than the load stress time, it is assumed that both the Wenker foundation and the concrete slab have creep characteristics and the corresponding temperature warping stress formulas are derived. Calculating the temperature warpage stress using the relevant chart given in this article is as convenient as the current Wilks type formula, but more reasonable than the latter.