论文部分内容阅读
本文通过对土中梁式结构受力力学机理的分析,探讨了当前存在的关键性问题,提出一个新的地下结构与其上面复盖土层之间的相互作用模型,能准确地求出垂直振动时结构的动态反应。并为了求得模型中的基本组成因素——土体刚度,提出有限元-曲线拟合法。 文中采用土中浅埋梁的动态试验资料,对提出的模型与算式进行了验证,结果表明理论值与实测值基本相符。
In this paper, through the analysis of mechanical mechanics of the beam structure in soil, the key problems existed are discussed. A new interaction model between the underground structure and the overlying soil layer is proposed to accurately determine the vertical vibration. The dynamic response of the structure. In order to obtain the basic compositional factor in the model, the stiffness of the soil, a finite element-curve fitting method was proposed. In this paper, the dynamic test data of shallow-buried beams in soil are used to verify the proposed model and formula. The results show that the theoretical values are basically consistent with the measured values.