Vertical Load Carrying System | 18.5" deep waffle slab with integral concrete beams supported by 12 concrete columns. Columns at the four corners were omitted. |
Lateral Force Resisting System | Nonductile concrete frames formed by concrete columns and integral concrete beams, and a sheear wall on the west side of the first story. Braced frames with ADAS elements were added during retrofit. |
Foundation Type | 12" square and 84' long precast concrete piles. Four or five piles under each column. |
Remarks | The building suffered structural and non-structural damage the 1989 Loma Prieta earthquake and was strengthened in 1991. |