Response Evaluation Methodology of Seismic Control Structure Utilizing Large-Weight Sub-System as Dynamic Mass Damper

Yaguchi, Tomoki; Kurino, Hiroyuki

doi:10.3130/aijs.86.33

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Cited by 3 publications

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Model Reference Predictive Control Method for Building Mass Damper

Tomiyoshi,

Yoshida,

Kotsuki

et al. 2024

Lecture Notes in Civil Engineering

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Model Reference Predictive Control Method for Building Mass Damper

Tomiyoshi,

Yoshida,

Kotsuki

et al. 2024

Lecture Notes in Civil Engineering

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Model reference predictive control for building mass damper

Tomiyoshi

Takahashi

Kotsuki

et al. 2022

Transactions of the JSME (In Japanese)

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Building mass dampers (BMDs) are structures designed to mitigate the responses of super tall buildings to earthquakes. These BMDs contain a soft layer at relatively high points in such buildings, and the component above the soft layer acts as a tuned mass damper (TMD). Given that BMDs utilize a part of the buildings as the tuned mass, a large mass ratio can be yielded even in the case of super tall buildings. Therefore, BMDs are expected to demonstrate very good seismic performance against large earthquakes. However, for BMDs to be applicable to these buildings, the initial stiffness of the soft layer must be increased from the optimum level, such that excessive displacement of the layer owing to strong winds can be prevented. This stiffness is larger than the optimum stiffness applicable in the case of small and medium earthquakes. Therefore, a problem arises in that the seismic performance of these BMDs is reduced against small and medium earthquakes that occur more frequently than the large ones. From this standpoint, we installed an active mass damper (AMD) on top of a non-optimal BMD, in which the soft layer's stiffness and damping were increased above the optimal levels. We also designed this AMD such that the seismic performance of the non-optimal BMD was close to that of the optimal BMD, and the habitability during small and medium earthquakes was improved, while explicitly considering the constraints of the AMD through model-referenced predictive control. Ultimately, to demonstrate the effectiveness of the proposed method, we conducted a numerical analysis using input waves with various frequency components.

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Development of Structural Control System for Automated Warehouse Based on the Concept of Large Weight TMD

Yaguchi

Kurino

2021

AIJ J. Technol. Des.

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In the Great East Japan Earthquake 2011, a number of automated warehouse's functions were suspended for a long time because stacker cranes were prevented from working by loads fallen into the aisles. Authors have developed a new structural control system for automated warehouse utilizing the loads themselves as weights of the TMD. This paper first presents the outline of the system. After examining the target specifications, the developed control slider is reported. Finally, the results of a shaking table test are presented.

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Response Evaluation Methodology of Seismic Control Structure Utilizing Large-Weight Sub-System as Dynamic Mass Damper

Cited by 3 publications

References 5 publications

Model Reference Predictive Control Method for Building Mass Damper

Model Reference Predictive Control Method for Building Mass Damper

Model reference predictive control for building mass damper

Development of Structural Control System for Automated Warehouse Based on the Concept of Large Weight TMD

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