Structural Analysis and Design of Cross-Laminated Timber - AIA/CES continuing professional education course

Sep 14, 2026

Uploaded by Fahsai

Structural Analysis and Design of Cross-Laminated Timber presents practical engineering guidance for using cross-laminated timber (CLT) panels as floor, roof, or wall framing. The course focuses on the design checks commonly required for strength and short-term and long-term deflection under gravity loads, plus step-by-step calculation approaches for structural fire resistance ratings of horizontal CLT assemblies. It emphasizes multi-span implications, diaphragm deflection methods, and how to select appropriate structural analysis models. Learning objectives also cover code compliance methods and AWC NDS Chapter 16-based fire resistance calculations for CLT.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages112

Reading Time4 h 42 min

AccessFree to download

Course Description

Learning Objectives

Agenda

What is Cross-Laminated Timber?

CLT Grades, Layups, Laminations, and Properties

North American CLT Product Standard

Benefits of CLT

Fabricated for Precise and Fast Construction

Strength Directions of CLT

CLT is an Orthotropic Material

Structural Analysis and Design of Cross-Laminated Timber December 7th, 2023 Presented by Scott Breneman, PhD, PE, SE Senior Technical Director, Mass Timber Program Manager WoodWorks – Wood Products Council [Scott.Breneman@WoodWorks.org](Scott.Breneman@WoodWorks.org) Catalyst / MGA | Michael Green Architecture / photo Andrew Giammarco |
| “The Wood Products Council” is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES), Provider \#G516 .
Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request. | This course is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed tobe an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.
Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
| | --- | --- | --- | Course Description As more project design teams consider using Cross-Laminated Timber (CLT) panels as floor, roof, or wall framing, there are structural design questions which arise frequently, especially for designers new to using mass timber products. This presentation provides specific design guidance on how to address common scenariosin structural analysis and design for CLT. Attendees will learn about the necessary design checks for floor and roof applications including strength and short-term and long-term deflection checks under gravity loading, as well as detailed instructions on how to calculate the structural fire resistance ratings of horizontal CLT assemblies. Particular attention will be given to the engineering implications of using multi-span CLT panels and resulting modifications to the single span design conditions. Additionally, a detailed explanation of different methods of determining horizontal diaphragm deflections will be presented. Learning Objectives • Review the design methods and performance checks for CLT panels used in floor and roof applications and how to use these to show code compliance. • Understand how to calculate the structural fire resistance rating of a CLT panel using the calculated method of AWC’s NDS Chapter 16. • Discuss the types of structural analysis models which can be used in the design process and when they are needed. • Review and understand calculation of horizontal diaphragm deflection of CLT floor and roofs Agenda • CLT Grades, Layups, Laminations, and Properties • CLT Floor and Roof Analysis • Structural Fire Design of CLT • Design and Modeling Approaches of CLT A collection of related topics answering real questions raised by designers. | What is Cross-Laminated Timber? | | | | --- | --- | --- | | • IBC recognized structural component
• Flat panel made from 3+ layers (AKA “plys”) of timber laminations
• In alternating orientations –> “Cross-Laminated”
• Assembled with specific structural adhesives | | Thickness 3 to 20 inches | | |
Max Length 16 to 80 feet
Max Width 4 to 12 feet
Consult with manufacturers’ info on sizes available | | | North American CLT Product Standard | | | --- | --- | | | The Standard Covers:
- U.S. and Canada Use
- Panel Dimensions and Tolerances
- Component Requirements
- Structural Performance Requirements
- Panel and Manufacturing Qualification
- Marking (Stamping)
- Quality Assurance | | ANSI/APA PRG 320 Standard for Performance-Rated
Cross-Laminated Timber | | | Benefits of CLT | | | --- | --- | | | Considerations:
• Large light-weight panels
• Dimensionally stable
• Precise CNC machining available
• Recognized by IBC
• Dual Directional span capabilities
• Often architecturally exposed
• Fast on-si

FAQs

What structural design checks does the course cover for CLT floor and roof applications?

The course covers required strength checks and short-term and long-term deflection checks under gravity loading for floor and roof use.

How is the structural fire resistance rating for a CLT panel determined?

It explains how to calculate the structural fire resistance rating of a CLT panel using the calculated method referenced in AWC’s NDS Chapter 16.

Why are multi-span CLT panels important in the design process?

The course highlights the engineering implications of using multi-span CLT panels and the modifications needed to address multi-span conditions compared to single-span design assumptions.

Sep 14, 2026

Uploaded by Fahsai