Tests of effect of Soil - High-rise Buildings built on soft soil foundation on High-rise Building

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (12) : 102-109.

GE Qi1 XIONG Feng1 CHEN Jiang1 XIE Lunwu1

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Abstract

A large number of dense urban high-rise buildings built on soft soil foundation have dynamic effect on each other through site soil. To study the effect of Dynamic Interaction of Soil - High-rise Buildings on the response of high-rise Building, two comparative test of soil-structure system were designed. One test is a shake table test with multiple structures and the other one is a shake table test with only one structure. The Experimental results show that there is significant dynamic interaction among the structures built on soft soil foundation through the site soil. The interaction increases the destruction of buildings and decreases the acceleration of the structures, further the influence degree has something to do with the characteristics of the inputs. Under the two kinds of wave excitation, the effects of interaction on the velocity are consistent and decrease the velocity of the short-period structure. However the effect on the long-period structure has something to do with the peak value of the inputs. Interaction has little effect on the displacement of the short-period structure, but it has significant effect on the displacement of the long-period structure.

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high-rise buildings / shake table test / dynamic response / soft soil foundation

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GE Qi1 XIONG Feng1 CHEN Jiang1 XIE Lunwu1. Tests of effect of Soil - High-rise Buildings built on soft soil foundation on High-rise Building[J]. Journal of Vibration and Shock, 2016, 35(12): 102-109

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