Page 460 - Advanced Design Examples of Seismic Retrofit of Structures

406 Advanced Design Examples of Seismic Retrofit of Structures

TABLE 6.3 Description of Getty Seismic Adobe Project (GSAP) Small-Scale
Model Buildings
Walls’
Model Slenderness
No. Ratio Walls Type and Location of Retrofit
Simple model: Four walls with no roof system
1 7.5 NE Upper horizontal strap
SW Upper and lower horizontal straps
2 7.5 NE Bond beam and center cores
SW Bond beam plus vertical and horizontal straps
3 7.5 NE Bond beam, center cores, and saw cuts;
lower horizontal strap only in west pier of
north wall
SW
Bond beam, center cores, and internal lower
horizontal straps
4 5.0 NE Upper strap
SW Upper and lower straps
5 11.0 NE Control model, not retrofitted
SW Control model, not retrofitted
6 11.0 NE Bond beam, lower horizontal straps, and
vertical straps
SW
Bond beam, lower horizontal strap, and local
ties
Tapanco-style model: Gable-end walls with attic floor and roof system
7 5.0 NE Partial diaphragms applied on attic-floor
and roof framing; upper and lower
horizontal and vertical straps
SW
Same as the NW walls, except vertical straps
placed only on the piers between the door and
window of the north wall
8 7.5 NE Partial diaphragms applied on attic-floor
and roof framing; upper and lower
horizontal and vertical straps
SW
Partial diaphragms applied on attic-floor and
roof framing; upper and lower horizontal straps
and vertical straps; no lower horizontal strap
on west wall; center-core rods
9 7.5 NE Control model, not retrofitted
SW Control model, not retrofitted