The potential construction of an elevated metro depot incorporating commercial and residential facilities is being considered in order to optimize land utilization. The vibration generated by trains operating on the concrete floor poses an intriguing challenge, as it directly propagates through the load-bearing structure to the over-track buildings without undergoing soil attenuation. Consequently, this phenomenon exerts a significant adverse impact on individuals' daily lives. The present study developed a numerical model to predict vibrations and evaluate the efficacy of two mitigation measures. The results demonstrate that both mitigation strategies effectively reduce vibration levels. However, it is important to acknowledge that the degradation of fastener stiffness should not be overlooked as it significantly impacts vibration characteristics. These findings offer valuable insights for the prediction and mitigation of vibrations in over-track buildings located above elevated metro depots during train operations on concrete floors.

中文翻译：

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混凝土地板上列车运行引起的建筑物振动的预测和缓解

为了优化土地利用，正在考虑建设一个包含商业和住宅设施的高架地铁车库。火车在混凝土地面上运行所产生的振动提出了一个有趣的挑战，因为它直接通过承重结构传播到轨道上的建筑物，而没有经历土壤衰减。因此，这种现象对个人的日常生活产生了重大的不利影响。本研究开发了一个数值模型来预测振动并评估两种缓解措施的效果。结果表明，两种缓解策略都能有效降低振动水平。然而，重要的是要认识到紧固件刚度的下降不应被忽视，因为它会显着影响振动特性。这些发现为列车在混凝土地板上运行期间预测和减轻位于高架地铁车辆段上方的轨道上建筑物的振动提供了宝贵的见解。