Geotechnical Seismic Isolation System Based on Sliding Mechanism Using Stone Pebble Layer: Shake-Table Experiments
Geotechnical Seismic Isolation System Based on Sliding Mechanism Using Stone Pebble Layer: Shake-Table Experiments
复制标题
基于石卵石层滑动机制的岩土隔震系统：振动台实验
作者：
I. Banović;J. Radnić;N. Grgić
通过振动台试验，研究了几种石卵石层参数(层厚、卵石含量、卵石压实程度、卵石含水率、地基下垂直接触应力和反复激励的影响)对层抗震效率的影响。对于每个考虑的参数，在抗震层上的刚性建筑模型被暴露于四种不同的加速度，具有三个水平的峰值地面加速度(PGA)，而所有其他层的参数保持不变。对于每个测试，都测量了特征位移和加速度。根据试验结果，给出了所考虑的参数对所采用的抗震层效果的影响的主要结论。
Using a shake-table, the effects of several stone pebble layer parameters (the layer thickness, the fraction of pebbles, the pebble compaction, the pebble moisture, the vertical contact stress below the foundation, and the effect of repeated excitations) on layer aseismic efficiency were investigated. For each considered parameter, a model of a rigid building on an aseismic layer was exposed to four different accelerograms, with three levels of peak ground acceleration (PGA), while all other layer parameters were kept constant. For each test, the characteristic displacements and accelerations were measured. Based on the test results, the main conclusions regarding the effect of the considered parameters on the effectiveness of the adopted aseismic layer are given.