CASE STUDY: COLLAPSE OF SKYLINE PLAZA, VIRGINIA, USA

摘要

Skyline Plaza apartment building in Bailey's Crossroads, Virginia, U.S.A. is an example of a catastrophic collapse of a 30 story cast-in-place reinforced concrete structure. This flat-plate structure collapsed while under construction, due to punching shear on the 23rd floor and resulted in a progressive collapse. In the midst of construction on March 2, 1973, one apartment building A-4 and the parking garage adjoining it collapsed. The following figure shows the damage following the collapse. The incident occurred at around 2:30 in the afternoon and resulted in the death of 14 construction workers and the injury of 34 others. It was designed as a 26 story apartment complex with a four-story basement and a penthouse level. All floor slabs were 200 mm thick and the floor-to-floor height was 2.75 m.