The key objective of this study is to analyze full-scale fire-resistance tests conducted on structural composite lumber (SCL), namely laminated veneer lumber (LVL), parallel strand lumber (PSL) and laminated strand lumber (LSL)...
During the past few years, a relatively new technology has emerged in North America and changed the way professionals design and build wood structures: Cross-laminated Timber (CLT). CLT panels are manufactured in width ranging from 600 mm to 3 m. As such...
Cross-laminated lumber (CLT), a relatively new construction system for which construction interest in North America is growing, is helping to define a new class of solid wood products. . CLT is a very promising wood-based structural component with high potential to provide cost-effective building solutions for residential, commercial and institutional buildings...
Project contact is Christopher Higgins at Oregon State University
Summary
This project will optimize the strength, stiffness, vibration characteristics, acoustic qualities and fire resistance of cross-laminated floor systems utilizing a composite concrete and cross-laminated timber product. This project includes development, testing and optimization of an economical shear connector (to connect the CLT panel to the concrete slab) that will be compared with existing screw and steel plate solutions. The resulting prototype floor system will be tested at full scale.
The Fire Test Laboratory of NGC Testing Services (NGCTS) conducted testing for American Wood Council (AWC) on a load-bearing, Cross-Laminated Timber (CLT) and gypsum board wall assembly to evaluate its fire resistance properties when exposed to fire acco...
As part of its research work on wood buildings, FPInnovations has recently launched a Design Guide for Timber-Concrete Composite Floors in Canada. This technique, far from being new, could prove to be a cost-competitive solution for floors with longer-span since the mechanical properties of the two materials act in complementarity. Timber-concrete systems consist of two distinct layers, a timber layer and a concrete layer (on top), joined together by shear connectors. The properties of both materials are then better exploited since tension forces from bending are mainly resisted by the timber, while compression forces from bending are resisted by the concrete. This guide, which contains numerous illustrations and formulas to help users better plan their projects, addresses many aspects of the design of timber-concrete composite floors, for example shear connection systems, ultimate limit state design, vibration and fire resistance of floors, and much more.
The fire-resistance rating of a building element in an assembly has traditionally been assessed by subjecting a replicate of that assembly to the standard fire-resistance test ULC S101 in Canada, ASTM E119 in the USA and ISO 834 in most other countries. ...
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