| Pasadena City Hall Retrofit |
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| Friction PendulumTM seismic isolation bearings are the centerpiece of the seismic rehabilitation of the historic Pasadena City Hal l . During construction, the original basement floor was removed and 240 Friction PendulumTM bearings were installed between the new foundation and new basement floor slab. |
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| Friction PendulumTM bearings were selected over competing isolation bearings because they provided significant savings in construction costs and their relatively simpler installation details resulted in faster installation. |
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