Brace Yourself - HSS Brace Design and Detailing
Presented by Cathleen Jacinto
HSS members are an excellent choice in braced frames. After discussing best practices for choosing the optimal HSS brace section, a library of details will be covered for HSS bracing connections. We will also navigate recent code updates and fabrication insights into these essential connections.
In this session, we will cover:
- Design Essentials: Learn design considerations for common HSS brace connection details, including slotted, end tee, and seismically reinforced connections.
- Connection Design: Step through limit state checks for HSS brace and Gusset Plate-to-HSS column connections, including guidance for combined shear, axial, and moment loading.
- Real-World Examples: Dive into practical application with design examples, including a slotted HSS brace connection and a gusset plate-to-HSS column connection example
Learning Objectives
- Understand key considerations in HSS brace member design
- Learn the summary of limit state checks to consider in HSS brace connection design for common HSS brace connections
- Equip engineers with practical design examples on HSS brace connections and connections to HSS columns.
Modifying Existing Lateral Load Resisting Systems - Braced Frames
Presented by Keith Palmer and Matthew Johnson
The codes are generally clear regarding designing and constructing new braced frame lateral load resisting systems. The codes are generally clear when the circumstances of an alteration require a lateral load resisting system to comply with code loads. What is not clearly addressed is the challenges faced by engineers when they are required to remove an existing braced frame to accommodate the alteration. This session will discuss the various challenges engineers must consider in removing an existing braced frame and the impacts not only on the steel lateral load resisting system, but the overall building superstructure.
Learning Objectives
- Understand the elements that make up a structural steel braced frame lateral-force-resisting-system.
- Understand the code implications and requirements of removing a brace.
- Understand the impacts on elements of the LFRS and strengthening schemes.
Total CE credit: 2 hours
Registration
This is a virtual event on Zoom. Attendees are required to have a free Zoom account in order to access the presentation.
Members: $60
Nonmembers: $90
About the Speakers
Cathleen Jacinto
FORSE Consulting
Cathleen has over 20 years of experience practicing structural engineering on a variety of projects while at Thornton Tomasetti, T.Y. Lin International, and currently at FORSE Consulting in Chicago, IL. At FORSE, Cathleen assists other structural engineers with designs on a variety of projects, and also contributes to seminars and publications. One topic Cathleen highlights is structural steel HSS design, as a technical consultant to the Steel Tube Institute. She contributes as a Board Member to SEAOI and serves on committees with AISC, ASTM, and AWS. She is a licensed SE and PE in the State of Illinois.
Keith Palmer
Simpson Gumpertz & Heger
Keith Palmer is an Associate Principal at SGH and has more than eighteen years of experience as a practicing structural engineer and over six years of experience as a researcher and instructor at the University of Washington and the University of Minnesota. He specializes in seismic evaluations and retrofits of buildings of all types, steel erection engineering, and consults with erectors to ensure stability during construction for stadia, high-rises, specialty structures, airports, and commercial buildings. He is the past chair of the Structural Engineers Associate of Northern California Existing Buildings Committee and the Nonductile Concrete Subcommittee of the SEAONC EBC. He is currently a director on the SEAONC board.
Matthew Johnson
Simpson Gumpertz & Heger
Matt is a Principal at SGH and has more than 25 years of experience as a practicing structural engineer. He brings a multidisciplinary approach to design and construction, combining a passion for innovation with a focus on value and client results. He leads a diverse team that designs, investigates, and rehabilitates buildings and infrastructure, structurally complex building enclosures, and non-traditional structures, including complex concrete formwork, structural steel construction, and temporary structures. He specializes in delivering value at all stages of planning, design, procurement, fabrication, and construction.
