Vertical Load Carrying System | The floor systems on the 2nd and 3rd floors consist of 1/2" plywood nailed to 2x10 wood joists at 16" o/c. The roof is made of wood trusses at 24" o/c. The joists and the trusses are supported on bearing walls or on header beams. |
Lateral Force Resisting System | Plywood shear walls with 2x6 studs at 16" o/c for the first story only. Gypsum board walls with 2x6 studs at 16" o/c for the second and third stories. Floor diaphragms consist of 1/2" plywood nailed to 2x10 wood joists at 16" o/c. |
Foundation Type | All shear walls are supported on 18"x18" concrete grade beams. Walls are anchored to the grade beams with 5/8" diameter anchor bolts. There is a 4" concrete slab on grade. |
Remarks | The building was designed as per the 1982 UBC. The seismic design is for Zone 4. |