Performance and Repair of Ordinary Structural Walls Subjected to Wind and Seismic Loading Protocols
Performance and Repair of Ordinary Structural Walls Subjected to Wind and Seismic Loading Protocols
Unlike seismic design, where performance-based design has become common in areas with high seismic hazards, wind design is still based on prescriptive code provisions and linear elastic response under ASCE 7 strength-level demands. In some locations, use of prescriptive wind design provisions leads to significantly higher costs and unintended negative consequences, e.g., for elements or actions that are capacity-protected as part of the seismic design such as the foundation, diaphragms, and wall shear. Developing and implementing performance-based wind design (PBWD), where limited nonlinearity is allowed in ductile elements/actions, offers substantial advantages over use of prescriptive code approaches and addresses these critical issues for both design of new buildings and evaluation of existing buildings, both in the US and around the world. The objectives of the research are to conduct large-scale testing on ordinary reinforced concrete walls with C-shaped and rectangular cross-sections to develop performance-based wind design (PBWD) recommendations for ACI Committees 375 and 318. The study focuses on “ordinary” structural walls because they, along with coupling beams, provide the lion’s share of the building lateral strength and stiffness needed to limit damage to both structural and nonstructural elements during strong windstorms.
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Grant Details
ProjectPerformance and Repair of Ordinary Structural Walls Subjected to Wind and Seismic Loading ProtocolsGranteeUniversity of California, Los AngelesCategoryPerformance-Based DesignSubcategoryWindGrant #01-21Award Amount$250,000Grant Period2021 - 2024Grant StatusActivePrincipal InvestigatorsJohn W. Wallace, PhD, PE, Professor, F. ACI, F. ASCEIndustry ChampionsRon Klemencic, David Fields, Tony Ghodsi, Brad Malmsten, Ian McFarlane, Viral Patel, Thomas Sabol, Fernando TorrealvaCPF AlliesAmerican Concrete Institute Foundation, MKA FoundationResearch DeliverablesDraft Report, Phase I Tests
Draft Report, Phase I Tests
Final Report
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Resources / Downloads
In Development