Performance Based Structural Design of 200m High-Rise Building Using Hysteresis Steel Dampers

Taga, Kenzo; Kobayashi, Masanori; Kondo, Minoru; Yoshida, Haruhiko; Ito, Atsushi; Yamagiwa, Masashi; Okuno, Tetsuya

doi:10.3130/aijt.7.93_1

Cited by 2 publications

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“…The values of η for each loading amplitude indicate that the test samples exhibit sufficiently good cumulative plastic deformation performance 11 . In the evaluation, based on absorbed energies, the values of η are larger than those in the evaluation based on the amount of deformation due to the effect of strain hardening.…”

Section: Design and Loading Tests Of Fms Alloy Seismic Dampersmentioning

confidence: 84%

“…The following experimental values under cyclic-loading tests with increasing amplitude were substituted into Equations (5) and (6) as the yield load P y and displacement δ y : The values of η for each loading amplitude indicate that the test samples exhibit sufficiently good cumulative plastic deformation performance. 11 In the evaluation, based on absorbed energies, the values of η are larger than those in the evaluation based on the amount of deformation due to the effect of strain hardening. This difference is more remarkable as the deformation amplitude increases.…”

Section: Dynamic Loading Tests Of the Shear Panel Seismic Dampermentioning

confidence: 87%

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Fatigue‐resistant Fe‐Mn‐Si‐based alloy seismic dampers to counteract long‐period ground motion

Inoue

Kushibe

Umemura

et al. 2020

Japan Architectural Review

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In recent years, resonance in high‐rise buildings due to long‐period ground motion, which induces large‐amplitude cyclic deformation of seismic dampers, has become a matter of significant concern. Performance requirements for seismic dampers that are installed in vibration‐controlled buildings have become more stringent, and durability against cyclic deformation has become essential. An Fe‐15Mn‐4Si‐10Cr‐8Ni alloy with enhanced low‐cycle fatigue resistance has been developed to produce steel seismic dampers that are durable against large‐amplitude cyclic deformations. We used this alloy to develop two types of fatigue‐resistant seismic dampers (shear panel and brace‐type) that counteract long‐period ground motion. Furthermore, cyclic loading tests were conducted to validate the deformation performance and fatigue resistance of the developed damper. The results indicated that these dampers exhibit significantly better fatigue life than conventional steel dampers and exhibit outstanding deformation performance and durability under low‐cycle fatigue. The proposed two types of dampers were installed on steel structure buildings in Japan. These dampers ensured that the buildings with seismic performance margins can withstand long‐period and long‐duration ground motion and repeated after‐quakes.

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Section: Design and Loading Tests Of Fms Alloy Seismic Dampersmentioning

confidence: 84%