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Development of Dynamic Centrifuge Models of Underground Structures Near Tall Buildings by Dashti, S. (author);Hashash, Y. M.A. (author);Gillis, K. (author);Musgrove, M. (author);Walker, M. (author) is a Engineering article available to read on EtoBox.

What is Development of Dynamic Centrifuge Models of Underground Structures Near Tall Buildings about?

A series of six centrifuge experiments was designed and conducted to assess the seismic influence of a mid to highrise building on adjacent shallow underground structures. The buildings modeled in this study (12 and 42 stories) were the tallest structures tested in centrifuge to date. In designing these experiments, it was important to represent the modal frequencies, base shear, base moment, and yield characteristics of realistic mid and highrise structures, in order to transmit realistic seismic demands onto the underground structures. For the midrise structure, it was possible to simulate the height, mass, and three primary modes of response with a simplified, scaled model in centrifuge. For the highrise structure, additional simplifications were necessary due to a limited overhead space. A scaled, singledegree-of-freedom structure could capture the fundamental frequency, mass, and therefore base shear of a representative 42-story highrise building, while other properties were sacrificed. The six experiments with varied payloads required similar base motions to experimentally evaluate the seismic impact of buildings on underground structures. The heavy structures applied an unpr

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Author

Dashti, S. (author);Hashash, Y. M.A. (author);Gillis, K. (author);Musgrove, M. (author);Walker, M. (author)

Publisher

Elsevier Ltd

Published

2016

Language

EN

Field

Engineering (Physical Sciences)