Studies on vibration control system "Soil improvement enhanced pile foundation"

本文对一种土改良桩基础进行了研究。由RC、PC或PHC桩构成的桥梁基础在强震作用下表现出非线性。近年来，土木工程结构引入了抗损伤性能设计。采用蜂窝状改良土，在桩周填充废旧轮胎碎料，可减小地基响应。在所谓的2级强运动情况下，蜂窝状WIB的损伤通过吸收地震能量来保存结构基础。在有限元模型的基础上，对蜂窝型波纹管进行了计算机仿真。对所涉及的参数进行了二维和三维分析比较。为了抗震安全考虑，着重分析了桩的内力和变形。

In this research, a soil improvement enhanced pile foundation has been studied. Bridge foundations made of RC,PC or PHC piles behave nonlinear during strong earthquake motions. The performance design has recently introduced for civil engineering structures against the damages. The honeycomb-shaped improved soil with the fill-in of used-tire shreds around piles works for reducing the foundation response. In the case of strong motions for the so-called Level 2, the damages at the honeycomb shaped WIB save the structural foundation by absorbing seismic energy.Computer simulation has been conducted for the honeycomb type WIB based on the finite element model. The 2-dimensional and 3-dimensional analyses are compared for the parameter involved. The internal forces in piles are focused as well as the deformation for the seismic safety consideration.