Chidlom Luxury Condominiums
Bangkok, Thailand At 58 stories, the Chidlom Luxury Condominium Project is the tallest condominium project in Thailand. The project has a number of unique design challenges, including an extremely narrow profile, sensitivity to wind induced accelerations, a highly articulated cladding system, a multilevel split basement, and an existing piling and basement wall system. Several structural systems were developed to address these considerations. The first scheme was an all-steel system utilizing braced cores and outrigger trusses to resist the wind loads. The gravity framing for this scheme consisted of steel beams with a composite metal deck. The second scheme consisted of a concrete shearwall connected to an exterior "tube" frame system of perimeter moment frames at typical levels, and outriggers/belt-trusses at the refuge/mechanical levels. A third scheme, utilizing a centrally located concrete shear wall core connected to exterior "super-columns" via an outrigger truss system, was selected for its balance between performance, speed of construction and overall cost. Among the considerations in the design of the foundation system was the presence of an existing foundation system, which was originally constructed for a different building program. Due to the slender profile of the building, the gravity loads induced at the foundation are resisted in a very small area. The conventional foundation for this type of building would use bored piles supporting a thick mat foundation. However, because of the tight site constraints and the existing piles, a unique foundation system was developed. This system utilizes barrette piles acting in conjunction with the existing bored piles as the primary load resisting system. The barrette and existing bored piles are then capped by a reinforced concrete mat. |
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