Back to Search
Start Over
Seismic Behavior of Balloon Frame CLT Shear Walls with Different Ledgers.
- Source :
-
Journal of Structural Engineering . Sep2021, Vol. 147 Issue 9, p1-16. 16p. - Publication Year :
- 2021
-
Abstract
- This paper presents experimental investigations on the seismic behavior of cross laminated timber (CLT) shear walls in a balloon frame configuration with various ledger assemblies attached at midheight. The tested system consisted of two seven-ply 191-mm-thick CLT panels with generic hold-downs, steel angle brackets, plywood surface splines, and nails as fasteners. A 2-story system was tested with a panel aspect ratio of 3∶1 with different steel and wood ledgers under monotonic and quasistatic reversed cyclic loading. Three ledgers were subsequently tested under vertical quasistatic monotonic loading to determine their remaining load-carrying capacity. The tests showed that the shear wall displacement was due to the rocking of the wall panels, which themselves behaved as rigid bodies with negligible in-plane deformations. When compared to the monotonic tests, the strength in reversed cyclic tests was up to 21% lower. The ledger did not impede the desired rocking behavior of the wall, nor did the rocking of the wall reduce the remaining gravity load-carrying capacity of the ledgers by more than 7%. Balloon-framed CLT shear walls can be detailed and designed using the Canadian standard specifications for platform-type construction. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SHEAR walls
*WALL panels
*CYCLIC loads
*RIGID bodies
*EARTHQUAKE resistant design
Subjects
Details
- Language :
- English
- ISSN :
- 07339445
- Volume :
- 147
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Structural Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 151717554
- Full Text :
- https://doi.org/10.1061/(ASCE)ST.1943-541X.0003106