Coupled-two-beam discrete model for dynamic analysis of tall buildings with tuned mass dampers including soil-structure interaction
Por:
Huergo, Ivan F., Hernandez, Hugo
Publicada:
1 ene 2020
Ahead of Print:
1 nov 2019
Resumen:
An equivalent coupled-two-beam discrete model is developed for
time-domain dynamic analysis of high-rise buildings with flexible base
and carrying any number of tuned mass dampers (TMDs). The equivalent
model consists of a flexural cantilever beam and a shear cantilever beam
connected in parallel by a finite number of axially rigid members that
allows the consideration of intermediate modes of lateral deformation.
The equivalent model is applied to a shear wall-frame building located
in the Valley of Mexico, where the effects of soil-structure interaction
(SSI) are important. The effects of SSI and TMDs on the dynamic
properties of the shear wall-frame building are shown considering four
types of soil (hard rock, dense soil, stiff soil, and soft soil) and two
passive damping systems: a single TMD on its top (1-TMD) and five
uniformly distributed TMDs (5-TMD). The results showed a great
effectiveness of the TMDs to reduce the lateral seismic response and
along-wind response of the shear wall-frame building for all types of
soils. Generally speaking, the dynamic response increases as the
flexibility of the foundation increases.
Filiaciones:
Huergo, Ivan F.:
School of Civil Engineering, Universidad Nacional Autónoma de México, Mexico City, Mexico
Univ Nacl Autonoma Mexico, Sch Civil Engn, Mexico City, DF, Mexico
Hernandez, Hugo:
School of Civil Engineering, Universidad Nacional Autónoma de México, Mexico City, Mexico
School of Civil Engineering, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
Univ Nacl Autonoma Mexico, Sch Civil Engn, Mexico City, DF, Mexico
Univ Michoacana, Sch Civil Engn, Ciudad Univ, Morelia 58030, Michoacan, Mexico
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