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Hagia Sophia Seismic Retrofit in 16th Century

Hagia Sophia

Hagia Sophia started showing signs of fatigue in 16th century. The building was extensively strengthened with the addition of structural supports to its exterior by the Ottoman architect Sinan, considered one of the world's first earthquake engineering and seismic retrofit projects. You can see the brown exterior columns of reinforcement structure supporting the orange-pink Hagia Sophia in the picture.

Hagia Sophia, originally uploaded by voyageAnatolia.

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