Design Loads on Cold-Formed Steel Structures During Construction

Earn 1 PDH

Cold-formed steel (CFS) structures are subject to a range of temporary loading conditions during construction that are often excluded from design scopes. This presentation examines the application of ASCE 37-14, Design Loads on Structures During Construction, and its relevance to CFS framing systems, with emphasis on practical considerations related to construction means and methods.

This presentation will explore key construction-phase load cases including:

• Bracing of load-bearing wall studs prior to diaphragm installation.
• Hoisting and handling loads during panelized wall and truss erection.
• Fall arrest anchorage forces imposed on framing members.
• Staging of materials on incomplete structures.
• Application of impact factors for dynamic construction loads.
• Concrete placement loads on steel deck supported by CFS joists and beams.
• Soffit framing used for temporary support of workers and equipment, often not designed for such loads.
• AISI S240 provisions for sheathing-braced design and their role in temporary stability.

The presentation will provide detailed guidance on applying ASCE 37 load combinations and load factors to CFS framing, with a focus on interpreting these provisions in the context of temporary conditions.

Coordination between structural engineers, specialty designers, and contractors ensures that construction-phase loads, often not considered when doing an in-service design, are properly addressed. Practical strategies for detailing, sequencing, and temporary bracing will be discussed, highlighting how these considerations can influence member sizing, connection design, and overall safety. Recognizing and designing for these additional loads is vital to protecting worker safety and minimizing risk during construction.

Learning Objectives

• Understand the scope and application of ASCE 37-14.
• Apply practical strategies for detailing and sequencing.
• Identify and evaluate temporary loading conditions.
• Evaluate how temporary construction loads can influence member sizing, connection detailing.

Jesse Barnes
McClure

Jesse is a seasoned structural engineer with ten years of experience, specializing in mid-rise multi-family construction. Currently serving as a Technical Manager at McClure, Jesse leads quality assurance and technical oversight for large engineer-of-record projects, with a specialized focus on load-bearing cold-formed steel (CFS) systems. He ensures structural accuracy through detailed review of drawings, calculations, and delegated design packages, supporting both internal teams and external stakeholders. With a strong background in multi-family housing, museums, civil infrastructure, and commercial structures, Jesse has managed projects across the country, including notable contributions in Florida, California, and Michigan. His expertise spans various materials, including wood, concrete, structural steel, cold-formed steel, and masonry. Jesse earned his Bachelor of Science degree in Civil Engineering from the University of Missouri in 2014. He is licensed as a Professional Engineer in nine states and as a Structural Engineer in two.

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