issue team recommendations for wood & cfs 1.mid-rise light-frame shear wall buildings 2.new...
Post on 27-Dec-2015
215 Views
Preview:
TRANSCRIPT
Issue Team Recommendationsfor Wood & CFS
1. Mid-rise light-frame shear wall buildings
2. New soft-story structures3. New hillside structures4. New open front structures5. Light-frame structures with
masonry veneer
Mid-rise Light-frame Shear Wall Buildings:Performance, Design, Detailing
Issues:Extended into mid-rise construction without adequate knowledge of seismic performance•Is adequate safety provided?•How do we design for performance?•What tools are needed for multi-story stacked shear wall analysis and design?
New Soft-story Structures:Reconsider Irregularity Implications
Issues:•Analysis and shake table testing consistently shows that light-frame construction exhibits extreme soft story behavior, regardless of design to avoid this behavior•Study is needed to consider what is achieved by current code limitations and practical ways to approach new building design
New Soft-story Structures:Reconsider Irregularity Implications
Resources:•San Francisco CAPSS/ATC 71-1•CUREE-Caltech Woodframe Project•NEESWood Project•UC Berkeley House Testing•Others?
New Hillside StructuresDesign Recommendations
Issues:•In the Northridge Earthquake, collapses occurred in light-frame hillside structures •A substantial portion of housing inventory is of hillside construction •Current code permits design of hazardous buildings
New Hillside StructuresDesign Recommendations
Resources:•Northridge earthquake experience•City of Los Angeles ordinance•CUREE-Caltech woodframe project
New Open-front Light-frame Structures:Design Recommendations
Issue:•Current code permits construction of potentially hazardous buildings
New Open-front Light-frame Structures:Design Recommendations
Resources:•CUREE-Caltech Woodframe Project•Analytical study by Jian Xu – WSU•TS7 work from 2003 Provisions
New Light-frame Structures with Masonry Veneer: Design Recommendations
Issues:•Demands on light-frame structure from masonry veneer•Anchorage of veneer to structure
Resources:•NSF/NEES Project
top related