Investigation of the Skyline Plaza Collapse in Fairfax County, Virginia: Fid-Bau Portal

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Investigation of the Skyline Plaza Collapse in Fairfax County, Virginia

E. V. Leyendecker / S. G. Fattal

The collapse of the Skyline Plaza apartment building A-4 has been studied by using information contained in case records of the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor and obtained from on-site inspections by investigators from the National Bureau of Standards. Non-compliance with OSHA construction standards has been identified with regard to formwork, field-cured concrete specimens and crane installation. Specifically, the construction procedures did not comply with standards for the removal of supporting forms. It is concluded that premature removal of forms was a contributing factor to the collapse in building A-4. An analysis of the 23rd-floor slab indicates that its most likely mode of failure was in shear around one or more columns in section 3 of the floor slab. The strength of the 23rd-floor slab on the day of collapse has been estimated to be at a level that removal of shoring could have produced shear failure in the slab.

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Investigation of the Skyline Plaza Collapse in Fairfax County, Virginia

E. V. Leyendecker / S. G. Fattal

The collapse of the Skyline Plaza apartment building A-4 has been studied by using information contained in case records of the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor and obtained from on-site inspections by investigators from the National Bureau of Standards. Non-compliance with OSHA construction standards has been identified with regard to formwork, field-cured concrete specimens and crane installation. Specifically, the construction procedures did not comply with standards for the removal of supporting forms. It is concluded that premature removal of forms was a contributing factor to the collapse in building A-4. An analysis of the 23rd-floor slab indicates that its most likely mode of failure was in shear around one or more columns in section 3 of the floor slab. The strength of the 23rd-floor slab on the day of collapse has been estimated to be at a level that removal of shoring could have produced shear failure in the slab.

Investigation of the Skyline Plaza Collapse in Fairfax County, Virginia

E. V. Leyendecker / S. G. Fattal

The collapse of the Skyline Plaza apartment building A-4 has been studied by using information contained in case records of the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor and obtained from on-site inspections by investigators from the National Bureau of Standards. Non-compliance with OSHA construction standards has been identified with regard to formwork, field-cured concrete specimens and crane installation. Specifically, the construction procedures did not comply with standards for the removal of supporting forms. It is concluded that premature removal of forms was a contributing factor to the collapse in building A-4. An analysis of the 23rd-floor slab indicates that its most likely mode of failure was in shear around one or more columns in section 3 of the floor slab. The strength of the 23rd-floor slab on the day of collapse has been estimated to be at a level that removal of shoring could have produced shear failure in the slab.

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Title:

Investigation of the Skyline Plaza Collapse in Fairfax County, Virginia

Contributors:

E. V. Leyendecker (author) / S. G. Fattal (author)

Publication date:

1977

Size:

95 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Structural Analyses , Apartment buildings , Collapse , Concrete slabs , Structural analysis , Formwork(Construction) , Shear properties , Columns(Supports) , Virginia , Fairfax County(Virginia) , Skyline Plaza , Progressive collapse

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