SEAOC Structural/Seismic Design Manual In-Person Seminar

Abstract: This presentation will walk through requirements and changes from the last code cycle mainly for the design of cold-formed steel (CFS) lateral-resisting systems for a 3-story CFS framed building. Many of the recurring questions engineers have concern which floor framing system to use, overturning restraint options and their design and detailing, wall stud bracing design and detailing, and use of the overstrength and expected-strength factors. These topics are covered in the SEAOC SSDM design example, updated for the 2024 IBC and referenced AISI S100/S200-series standards. The session will also note what has changed since the 2021 IBC cycle, including updated AISI, AISC, ASCE 7, and AWC standard references.

Bio: Jeff is a licensed Civil and Structural Engineer in California and multiple other states who has been practicing since 1991. Before joining Simpson Strong-Tie in 2000, he spent nine years as a design engineer on residential, commercial, institutional, and forensic projects, working in wood, cold-formed steel, structural steel, masonry, and concrete. At Simpson Strong-Tie, he has held roles spanning branch engineering, regional engineering management, codes and product compliance, and business unit leadership. He currently serves as Manager for Engineering Department Operations. His industry involvement includes serving as chairman of the AISI Committee on Framing Standards Lateral Design Subcommittee, president of both SEAOSC and the Cold-Formed Steel Engineers Institute (CFSEI), and as a member of the ICC-ES Board of Managers. He is a SEAOC Fellow and current co-chair of the SEAOSC Legislative Action Committee, and has authored design guides and technical articles and presented on structural design and codes and standards topics throughout his career.

Abstract: SEAOC Seismic Design Manual Volume III Example 2 covers seismic design of a six-story concrete wall with openings and coupling beams. The presentation will focus on key concepts including: desired behavior of concrete walls, design for flexure, lap splices, design for shear, effect of gravity framing, detailing of wall boundaries, and detailing of coupling beams. The presentation will draw on observations and lessons learned from past earthquakes, in addition to code requirements and recommendations from research.

Bio: Karl Telleen is a Principal with Maffei Structural Engineering in San Francisco. He has 21 years of professional experience including design of concrete and steel structures, seismic retrofit and renovation of historic buildings, peer review, and wind and seismic analysis of solar arrays. He completed a Fulbright Fellowship in Switzerland in 2010, and he performed reconnaissance in Haiti following the 2010 earthquake. He was selected as an EERI Housner Fellow in 2017. Karl served as Director and Treasurer of SEAONC, and he co-authored papers in the journals Earthquake Spectra, Concrete International, and the ASCE Journal of Structural Engineering.

Abstract: Structural steel special moment frames (SMF) typically comprise wide flange beams, columns, and beam-column connections. Connections are proportioned and detailed to resist internal forces (flexural, axial and shear) that result from displacement created in response to extreme earthquake ground shaking. The SMF’s anticipated seismic behavior usually includes large displacements and high rotational demands on the rigid connections. SMF design intends to distribute inelastic demand throughout all participating beam-column connections, with yielding being limited to targeted member locations outside of the potentially brittle SMF connection.
Design regulations for steel SMF are promulgated in a series of standards: ASCE/SEI 7, ANSI/AISC 341, ANSI/AISC 358 and ANSI/AISC 360. AISC 358 provides specific regulations related to prequalification of certain SMF connection types that obviate project specific testing required by AISC 341. The SEAOC SDM design example follows the provisions of AISC 358 for the RBS connection type for the steel SMF seismic force resisting system.

Bio: Kevin Moore, Principal with Martin/Martin Consulting Engineers, is a nationally recognized structural engineer with expertise in advanced analysis, design, and evaluation of buildings in high seismic regions. Mr. Moore is a licensed professional engineer, civil engineer, or structural engineer in 15 states with over 30 years’ experience as a practicing structural engineer in California. Kevin is the current Project Manager for the SEAOC Seismic Design Manuals for the 2024 CBC, and has been active in AISC, SEAOC and SEAONC since 1995. He served as Chair of the SEAOC Structural Standards Committee, SEAOC Seismology Committee, and SEAONC Seismology Committee and is a Past President of SEAONC and the Past Chair of the NCSEA Seismic Subcommittee to the Code Advisory Committee. While serving as the Vice Chair of the AISC Connection Prequalification Review Panel for the first 9 years of the committee, Kevin wrote the SMF design example presented today, and he remains a voting member of AISC 358.