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Miami-Dade County Children’s Courthouse

Location Miami, Florida

Project Detail

The Miami Dade County Children’s Courthouse reflects the unified family concept combining family court, traditional courts, state attorney office, public defenders office, social service agencies, community meeting spaces and public gallery space. This downtown Miami landmark contains approximately 370,000 sf. A secured overhead bridge will connect the courthouse to a secured parking area east of the building.

Because high-rise structures “shelter” the courthouse on three sides, only the west end of the building is considered vulnerable to possible aerial terrorism. The architectural and structural design teams worked jointly to harden this façade of about 100 feet by providing a solid concrete wall. This element provides protection from terrorism in the west-east direction and also provides lateral stability from hurricanes in the north-south direction.

After an economic evaluation was performed, the post-tensioned system was chosen as the most cost effective. The post-tensioned flat plate also appealed to the architect due to the shallowness of the system and the ability to provide higher ceilings for the court rooms. At the South, the building features an exterior pre-cast wall that tilts-up and away from the building in its upper floors. The post-tensioned slab cantilevers to support this pre-cast wall progressively increasing its cantilever span to a maximum of about 15 feet. The structure makes provisions to support a green roof over the building’s main roof and another over the roof covering the 3-story atrium at the entrance.