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<p>This article describes performance-based seismic retrofit design for a network arch bridge.</p><p>Three-dimensional non-linear dynamic time history analyses were carried out considering</p><p>site-specific earthquake ground motions. The damage control design concept was employed to achieve a rational seismic retrofit with seismic response-control. Optimal design using hysteretic shear panel dampers with low yield strength steel, effective for absorbing the seismic energy, is discussed from dynamic analyses.</p>

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