Projects > Civic > Chiayi City Civic Center - North building
Chiayi City Civic Center - North Building
Chiayi City Civic Center - North Building
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The project site is rectangular in shape, measuring approximately 124 meters in the north–south direction and 107 meters in the east–west direction. The tower portion of the superstructure has an east–west width of approximately 94 meters and a north–south length of about 29 meters. The building rises to 13 stories above ground. The typical floor height is 4.2 meters, with a 6.0-meter floor-to-floor height at the first level. The second and third floors have a height of 4.8 meters, the fourth floor is 5.4 meters high, and the thirteenth floor reaches 6.0 meters. The total building height, excluding rooftop structures, is 61.7 meters.
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Project Details
Location: Chiayi City, Taiwan Gross Building Area: 69,706 m^2 Scope of Service: Schematic design through construction administration Client: Chiayi City Government, Taiwan Architect: Ricky Liu & Associates Architects + Planner (Taipei, Taiwan) Structural Engineer: King-Le Chang and Associates |
The superstructure adopts a steel special moment-resisting frame system. In the X-direction, the lateral force-resisting system consists of special moment-resisting frames. In the Y-direction, a dual system is employed, composed of buckling-restrained braces (BRBs) and special moment-resisting frames.
The project includes two basement levels. The floor-to-floor height of B1F is 5.6 meters (including the 1.1-meter elevation of the first floor), while B2F has a height of 3.8 meters. The raft foundation has a depth of 1.6 meters, and the total excavation depth reaches 10.0 meters (including 100 mm of plain concrete blinding).
To maintain sufficient clear height and to provide additional self-weight for uplift resistance in over-excavated zones, the basement level utilizes a 500 mm thick flat slab system without beams. In the tower area, a 500 mm drop-panel slab is adopted together with a 300 mm flat slab system.
The project includes two basement levels. The floor-to-floor height of B1F is 5.6 meters (including the 1.1-meter elevation of the first floor), while B2F has a height of 3.8 meters. The raft foundation has a depth of 1.6 meters, and the total excavation depth reaches 10.0 meters (including 100 mm of plain concrete blinding).
To maintain sufficient clear height and to provide additional self-weight for uplift resistance in over-excavated zones, the basement level utilizes a 500 mm thick flat slab system without beams. In the tower area, a 500 mm drop-panel slab is adopted together with a 300 mm flat slab system.
In response to the architectural configuration along C Line, two Vierendeel truss systems are strategically introduced within the elevation. As illustrated, these truss zones are located at the upper levels, where large openings and transitional spaces interrupt the regular column alignment. Rather than using conventional diagonal bracing—which would conflict with façade transparency and spatial requirements—the Vierendeel truss system provides an elegant structural solution while preserving architectural intent.
