Report of building damage in Santiago, Chile
Degenkolb’s Reconn team arrives in Chile.
photos by Roger Parra
Building in the Cuidad Empresarial Area (33⁰ 23′ 32″, 70⁰ 37′ 09″) (below)
Irregular shaped building with torsional response. Walls on southeast end heavily damaged. Shear and compression failures of the walls. Shoring being put in place. Walls are 8 inches thick with #2 horizontal bars at about 8 inches on center. Horizontal wall bars hook outside of the boundary element with 90⁰ hooks.
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Building in the Cuidad Empresarial Area (33⁰ 23′ 18″, 70⁰ 37′ 06″) Patio Mayor (below)
Irregular shaped building with torsional response. Stair tower portion connected to two buildings. Buildings had different response and caused collapse of portion of the building. Notice the water towers near collapse. Steel girder fell and caused out of plane failure of wall.
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Building in Providencia Santiago (33⁰ 25′ 39″, 70⁰ 36′ 59″) Iglesia de la Divina Providencia (below)
URM church built in 1910. Wood framed tower in church collapsed. Building had been retrofitted with tie rods at arches. Some cracking of ceiling due to collapse of tower roof framing on to main roof.
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Building in Santiago (33⁰ 25′ 49″, 70⁰ 40′ 00″) Central Park (below)
Sixteen story concrete shear wall condo. Built in 2003. Shear and compression failure of walls. Building essentially yellow tagged. People retrieving their possessions today. Walls are thin, short and lightly reinforced. 8 inch walls with #2 EW EF bars at 8 inches on center.
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Building in Maipu (33⁰ 30′ 11″, 70⁰ 45′ 11″) (below)
Five story concrete shear wall condo. Built in 2005. Soft story building with parking below apartments. Wall are thin, and not very long. Partial collapse of northern portion of the building. Floor slabs also collapsed in building. Southern portion of building had more walls. Entrance to underground parking was on south side. Walls are thin, short and lightly reinforced. Eight inch walls with #2 EW EF bars at 8 inches on center.
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Building in Maipu (33⁰ 30’ 19”, 70⁰ 45’ 19”)
Five story concrete shear wall condo. Built in 2005 by the same developer and builder. Soft story building with parking below apartments. Similar features with full collapse of soft story. Floor slabs also collapsed in building.
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Building in Maipu (33⁰ 30′ 21″, 70⁰ 45′ 14″) (below)
Five story concrete shear wall condo. Built in 2005 by a different developer and builder. Soft story building with parking below apartments. Similar features with the other two buildings. Building has an interior courtyard, with interior walls around courtyard. Exterior walls at base around perimeter are very short with L and T shape configuration. Walls/piers have ties with 135 hooks and some 90 hooks at 3 inch spacing.
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