Magnusson Klemencic Associates Foundation

RGA 02-21 This research seeks to develop and experimentally validate bolded splice details for composite plate shear walls-concrete filled CPSW-CF to enable nationwide application of this structural system. The use of CPSW-CF structures leverage steel pre-fabrication in the shop and stay-in-place formwork to reduce the time spent on site and accelerates the construction schedule. Professor Bruneau from the University of Buffalo serves as the principal investigator.

RGA #04-23 Steel Mass Timber Hybrid Diaphragms and Vibration: aims to investigate the diaphragm and vibration behavior of steel-cross laminated timber CLT floors. This research will catalyze innovation within the building construction field by enabling efficient and effective designs of steel-CLT floors. Steel-CLT buildings are currently being constructed throughout the US. However the existing design guides for diaphragm and vibration design have not been developed through experimental data. Therefore the design of steel-CLT buildings may be overly conservative.

RGA #04-23 Steel Mass Timber Hybrid Diaphragms and Vibration: aims to investigate the diaphragm and vibration behavior of steel-cross laminated timber CLT floors. This research will catalyze innovation within the building construction field by enabling efficient and effective designs of steel-CLT floors. Steel-CLT buildings are currently being constructed throughout the US. However the existing design guides for diaphragm and vibration design have not been developed through experimental data. Therefore the design of steel-CLT buildings may be overly conservative.

A-101.3 This research project looks to advance Methods for the Efficient Estimation of the Reliability of Post-Elastic High-Rise Wind-Excited Structures within a Performance-Based Design PBD for high-rise buildings. Professor Seymour Spence is the principal investigator and is quoted as follows: Current high-rise structural wind design is hampered by difficulties in efficiently modeling the post-elastic non-linear structural behavior of the system therefore leading to challenges in estimating the reliability of these systems against severe windstorms. This research seeks to define a new paradigm for solving this problem through the development of probabilistic dynamic shakedown frameworks for the inelastic analysis of wind-excited structures. These methods have the potential to provide tools that enable the rapid evaluation as compared to time-history integration of the post-elastic reliability of a wide class of high-rise structures."

RGA -5-22 Performance based structural fire design for authorities having jurisdiction officials: this project will develop educational training materials to introduce AJH to the topic of performance-based structural fie design pbsfd. These materials will assist AHJ to gain an understanding of the goals objectives fire scenarios thermal and structural analyses for pbsfd. After completing the training ahj will be able to review pbsdf designs along with their assumptions limitations can caveats. They will be able to effectively manage relationships between the engineering team and the peer review panel and make final decisions based on buildings codes for steel concrete masonry and wood structures. The educations materials will include slides recorded presentations guideline documents recordings of live workshops seminars and discussions by expert panels in the field of structural fire engineering fire protection engineering and performance-based design.

RGA 01-21 Ordinary structural walls subjected to wind and seismic loading protocols: this research involved large scale testing on ordinary reinforced concrete walls with c-sharped and rectangular cross-sections to develop performance-based wind design recommendations for ACE Committees 375 and 318.

Foundation Mats with High Strength Steel Reinforcement #01-19: The research aims to 1 obtain additional data for a deep member with high-strength longitudinal reinforcement and without shear reinforcement thereby providing additional data for very deep members that can inform the ACI 318 one-way shear equations for very deep members with low flexural reinforcement ratio. 2 obtain data for a soil-supported deep member to address the question of whether there are fundamental differences between the behavior of soil-supported deep beams and simply supported deep beams.

RGA 06-22 Assembly Live Load Consistency For Buildings - Gateway to Reducing Embedded Energy: Dating back to the 1800's there have been live load surveys and analyses particularly of area-dependent loads in office buildings. As will be shown however while some occupancy loads have received careful examination assembly has almost been an afterthought. Indeed there has been no systematic review and consideration of reliability-based scenarios for assembly requirements. The driving rationale for the present study is a modem determination of these loads. Prioritization on safety which is appropriate has led to a tendency of overdesign in some cases of which assembly floor loading is one. Without a reliability- and performance-based approach these loads have continued essentially unchanged since their first pre-code promotion in 1893. This research is an innovative modern approach to reliability-based design live loads for assembly areas in buildings to promote improved safety.

RGA 01-22 Behavior of Modular Steel Plate Floor Assemblies: This project investigates a new modular steel floor framing and diaphragm system for commercial building structures with broad applicability including high seismic zones. The proposed system has key benefits of increasing the speed of construction including eliminating the pouring of a concrete deck. This type of system is key to achieving the goals of the AISC Need for Speed initiative to reduce the time from conception to occupancy for steel building structures.

RGA 01-21 Ordinary Structural Walls Subjected to Wind and Seismic Loading Protocols: This research involves large scale testing on ordinary reinforced concrete walls with C-shaped and rectangular cross-sections to develop performance-based wind design recommendations for ACI committees 375 and 318.

Research Grant Agreement A-103 relates to creating a free open access North American Life Cycle Inventory LCI database of high impact building materials.A free and open access North American LCI database is a missing element in being able to create a reference building's embodied carbon footprint early within a design process. A reference building benchmark is what design and construction innovations on a project by project basis can be compared against. The database promotes innovations especially when considering lower carbon footprints of materials and construction.

RGA 05-22 Performance Based Structural Fire Design for Authority Having Jurisdiction Officials: This project will develop educational training materials to introduce AHJ to the topic of performance-based structural fire design PBSFD. These materials will assist AHJ to gain an understanding of the goals objectives fire scenarios thermal and structural analyses for PBSFD. After completing the training AHJ will be able to review PBSFD designs along with their assumptions limitations and caveats. They will be able to effectively manage relationships between the engineering team and the peer review panel and make final decisions based on building codes for steel concrete masonry and wood structures. The educational materials will include slides recorded presentations guideline documents recordings of live workshops seminars and discussions by expert panels in the field of structural fire engineering fire protection engineering and performance-based design.

A-104 The Carbon Results Framework Project: The goal of the EC3 tool project is to transform building construction by transparently measuring comparing and reducing embodied carbon emissions from construction materials. Each year the built environment contributes almost 40% of CO2 emissions worldwide and it is estimated that there will be a doubling of the amount of building floorspace in the next 40 years. At least half of the carbon footprint of these new buildings will take the form of embodied carbon the emissions associated with building construction including extracting transporting manufacturing and installing building materials. As a result owners designers engineers and contractors are turning their attention to building materials and seeking information on these products so they can make informed smart choices. The EC3 tool would enable the building industry to easily access and view material carbon emissions data.

RGA 06-16 Seismic and Wind Behavior and Design of Coupled CF-CPSW Core Walls for Steel Buildings: A new composite shear wall system is being explored in this ground-breaking research at Purdue University and the University at Buffalo. The innovative shear wall system employs two steel plates connected by steel cross ties that are then filled with high strength concrete. The shear wall system is free of traditional rebar reinforcing. The Bowen Lab at Purdue University is testing six one-third-scale planar specimens of the composite steel plate shear wall systems as part of Phase 1 of the research program. Phase 2 includes testing of non-planar wall segments C- and T-shaped modules with Phase 3 testing composite shear wall systems with coupling beams. The focus of this project is twofold: to generate data-based numeric models that can be used to develop wind and seismic provision and to gain insight into the performance of various detailing layouts.