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Three-dimensional Dynamic Analysis of Ancient Buildings with Novel High Damping Isolation Trenches by Jin-bao Li; Zhong-wei Hu; Zhao-dong Xu; Ying-qing Guo is a Engineering article available to read on EtoBox.

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To improve the efficiency of conventional isolation trench and lighten the impact of the excavation on neighbor buildings, a novel high damping isolation trench is proposed. The viscoelastic braces equipped in the high damping isolation trench can dissipate the energy of ground-borne vibration while providing supporting force to ensure the stability of the soil on both sides. According to two actual ancient buildings, two types of high damping isolation trenchs with the plane shape of U and L are designed to solve the potential damages caused by long-term train-induced vibration. First, three-dimensional finite/ infinite models based on these two buildings are established, respectively. Then, the energy dissipation characteristics are obtained by experiments. Through calculation, the control effects of the high damping isolation trenchs for these two buildings are investigated. The results indicate that the viscoelastic braces possess high energy dissipation capacity. After setting the high damping isolation trenchs around the structures, even at a small excavation depth, the acceleration and velocity responses of the two buildings are reduced significantly. Furthermore, the select

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Author

Jin-bao Li; Zhong-wei Hu; Zhao-dong Xu; Ying-qing Guo

Publisher

SAGE Publications

Published

2021

Language

EN

Field

Engineering (Physical Sciences)