California Mass Timber Reference Guide - Part 2: Structural Guidelines and Best Practices 2020 SEAOC Convention

摘要

This paper serves as a resource to create a common and consistent understanding of the application of mass timber under the 2019 California Building Code (CBC). "Mass timber" refers to large format prefabricated timber products built-up by adhesives or mechanical means utilizing smaller scale dimensional and/or structural composite lumber and veneers. There are many advantages to mass timber construction including aesthetics, reduction of environmental impacts from buildings, prefabrication and speed of construction, and reduction in foundations due to lighter structure weight. These advantages have encouraged its use ahead of the pace of building code development. It is the hope of the authors that this resource creates a framework for discussion between building officials, designers, code consultants, developers, and other stakeholders involved in the construction of mass timber buildings in California. Given the breadth of covered topics from code development, structural engineering, and fire engineering, we have broken this guide up into two parts: 1)California Mass Timber Reference Guide - Part 1: Code Development and Fire/Life-Safety 2)California Mass Timber Reference Guide- Part 2: Structural Guidelines and Best Practices This paper. Part 2 - Structural Guidelines and Best Practices, will summarize mass timber gravity and lateral-force resisting systems available for use in California. It will present alternatives for both gravity and lateral systems, and outline approval pathways for these structural systems using both prescriptive and performance-based alternatives.