What question did this study set out to answer?

This research aims to develop an energy-based limit curve to improve seismic design criteria for reinforced concrete moment-resisting frames equipped with steel damper columns.

May 8, 2026Frontiers in Built EnvironmentOpen Access

An energy-based limit curve framework for reinforced concrete moment-resisting frames with steel damper columns

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Authors

KFKenji Fujii

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Overview

Randomized trial examines seismic responses in reinforced concrete frames with steel dampers, indicating implications for seismic design.

Key Points

This research aims to develop an energy-based limit curve to improve seismic design criteria for reinforced concrete moment-resisting frames equipped with steel damper columns.
Proposed an energy-based limit curve using peak and cumulative seismic intensity parameters.
Performed incremental critical pseudo-multi impulse analyses on three eight-story RC moment-resisting frames with steel damper columns.
Conducted nonlinear time-history analyses with recorded ground motions, including major earthquake sequences.
Considering 2–32 pulsive inputs in incremental analyses sufficiently covers nonlinear time-history results.
Most cases meeting limit-state criteria are within the proposed limit curve, while those exceeding are outside.
Earthquake sequences result in more exceedances of limit-state criteria compared to single-earthquake scenarios.

Cite This Study

Kenji Fujii (2026) studied this question.

synapsesocial.com/papers/69fd7cd4bfa21ec5bbf05afa https://doi.org/10.3389/fbuil.2026.1784736

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May 8, 2026Frontiers in Built EnvironmentOpen Access

An energy-based limit curve framework for reinforced concrete moment-resisting frames with steel damper columns

View Full Paper

Ask AI

Bookmark

Authors

KFKenji Fujii

Discussion

Member takes

Overview

Randomized trial examines seismic responses in reinforced concrete frames with steel dampers, indicating implications for seismic design.

Key Points

This research aims to develop an energy-based limit curve to improve seismic design criteria for reinforced concrete moment-resisting frames equipped with steel damper columns.
Proposed an energy-based limit curve using peak and cumulative seismic intensity parameters.
Performed incremental critical pseudo-multi impulse analyses on three eight-story RC moment-resisting frames with steel damper columns.
Conducted nonlinear time-history analyses with recorded ground motions, including major earthquake sequences.
Considering 2–32 pulsive inputs in incremental analyses sufficiently covers nonlinear time-history results.
Most cases meeting limit-state criteria are within the proposed limit curve, while those exceeding are outside.
Earthquake sequences result in more exceedances of limit-state criteria compared to single-earthquake scenarios.

Cite This Study

Kenji Fujii (2026) studied this question.

synapsesocial.com/papers/69fd7cd4bfa21ec5bbf05afa https://doi.org/10.3389/fbuil.2026.1784736

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