Technical Papers

Selected Technical Papers

Authored by members of APA technical services and their collaborators, the following papers discuss results of various topics in wood-design research. APA scientists and researchers maintain active participation in international committees and conferences in addition to their work on code and standard development for engineered wood products.The following selection of technical papers, indexed by subject, are among APA's most frequently requested studies.


Building Science

Effects of Exterior Insulation on Moisture Performance of Wood-Frame Walls in the Pacific Northwest: Measurements and Hygrothermal Modeling.
Glass, S., B. Yeh, and B. Herzog. 2016.
University Park, PA: 3rd Residential Building Design & and Construction Conference at Penn State. 20 p.

Five Ds of Moisture Management: Deflection, Drainage, Drying, Distance, and Durable Materials.
Beebe, K. and M. Kam-Biron. 2016.
Seattle, WA: SEAOC 2016 Convention Proceedings. 18 p.


Cross-Laminated Timber

The Cross-laminated Timber Standard in North America.
Yeh, B., S. Gagnon, T. Williamson, and C. Pirvu. 2012.
Auckland, NZ: World Conference on Timber Engineering. 10 p.


Glulam

Effect of Checking and Non-Glued Edge Joints on the Shear Strength of Structural Glued Laminated Timber Beams.
Yeh, B., T.G. Williamson and Z. A. Martin. 2006.
Florence, IT: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/39-12-3. 11 p.

Evaluation of Glulam Shear Strength Using a Full-Size Four-Point Test Method.
Yeh, B. and T. G. Williamson. 2001.
Venice, IT: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/34-12-2. 14 p.

Fire Performance of FRP Reinforced Glulam.
Williamson, T.G. and B. Yeh. 2006.
Florence, IT: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/39-16-1. 9 p.

High-Strength I-Joist Compatible Glulam Manufactured with LVL Tension Laminations.
Yeh, B. and T. G. Williamson. 2001.
Venice, IT: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/34-12-1. 15 p.

Laminating Lumber and End Joint Properties For FRP-Reinforced Glulam Beams.
Williamson, T. G. and B. Yeh. 2009.
Duebendorf, CH: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/42-12-3. 11 p.

Shear Strength of Structural Glued Laminated Timber Based on Full-Size Flexure Tests.
Yeh, B., T. G. Williamson, and M. O'Halloran. 1999.
Rotorua, NZ: Pacific Timber Engineering Conference. Vol. 1, p 199-206.

Standard Practice for the Derivation of Design Properties of Structural Glued Laminated Timber in the United States.
Williamson, T.G. and B. Yeh. 2007.
Bled, SI: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/40-12-4. 11 p.

Using Computer Models to Predict the Performance of Structural Glued Laminated Timber.
Yeh, B. 1996.
New Orleans, US: International Wood Engineering Conference. Vol .1, p 136-143.


I-Joists

Adhesive Performance at Elevated Temperatures for Engineered Wood Products.
Yeh, B., B. Herzog and T. G. Williamson. 2005.
Karlsruhe, DE: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/38-18-1. 11 p.

Composite Action of I-Joist Floor Systems.
Williamson, T.G. and B. Yeh. 2008.
St. Andrews, CA: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/41-10-1. 11 p.

Evaluation of Adhesive Performance at Elevated Temperatures for Engineered Wood Products.
Yeh, B. and R. Brooks. 2006.
Portland, OR, US: World Conference on Timber Engineering. 9 p.

Performance of Full-Scale I-Joist Diaphragms.
Yeh, B., B. Herzog, T. Skaggs. 2016.
Graz, AT: International Network on Timber Engineering Research, INTER 49-15-5. 14 p.

Performance Standard Considerations for I-Joists Used in Residential Floor Construction.
Yeh, B., T. G. Williamson, and M. O'Halloran. 1999.
Rotorua, NZ: Pacific Timber Engineering Conference. Vol. 3,  p 115-122.


Lateral Load

A Portal Frame Design for Raised Wood Floor Applications.
Williamson, T.G., Z.A. Martin and B. Yeh. 2005.
Karlsruhe, DE: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/38-15-9. 9 p.

Advancements in Force Transfer Around Openings for Wood Framed Shear Walls.
Beebe, K. and T. Skaggs. 2015.
Seattle, WA: 2015 SEAOC Convention Proceedings.
13 p.

Full-Scale Shear Wall Tests for Force Transfer Around Openings.
Skaggs, T., B. Yeh, F. Lam, D. Rammer, and J. Wacker. 2010.
Nelson, NZ: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/43-15-5. 10 p.

In-Plane Racking Tests of Continuous Sheathed Wood Structural Panel Wall Bracing.
Skaggs, T. D., E. L. Keith, B. Yeh, P. Line, and N. Waltz. 2014.
Bath, UK: International Network on Timber Engineering Research. INTER/47-15-7.
13 p.

Modelling Force Transfer Around Openings of Full-Scale Shear Walls.
Skaggs, T., B. Yeh, D. Rammer, J. Wacker, F. Lam, and M. Li. 2011.
Alghero, IT: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/44/15/3. 11 p.

Modelling Wood Structural Panel Portal Frame Response.
Skaggs, T. and B. Yeh. 2012.
Växjö, SE: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/45-15-5. 14 p.

Narrow Shear Walls—A Portal Frame Solution.
Williamson, T. G. and B. Yeh. 2004.
Lahti, FI: World Conference on Timber Engineering. 7 p.

Narrow Wall Bracing (APA Report T2012L-16).
Keith, E. 2012.
Tacoma, WA: APA – The Engineered Wood Association. 43 p.

Narrow Wall Bracing—Eight Foot Tall Walls (APA Report T2012L-30).
Keith, E. 2012.
Tacoma, WA: APA – The Engineered Wood Association. 44 p.


Structural Composite Lumber

Creep and Creep-Rupture Behavior of Structural Composite Lumber Evaluated in Accordance with ASTM D 6815.
Yeh, B. and T. G. Williamson. 2007.
Bled, SI: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/40-12-5. 11 p.

Design of Multiple Bolted Connections for Laminated Veneer Lumber.
Yeh, B., D. Rammer, and J. Linville. 2014.
Quebec City,  CA: World Conference on Timber Engineering. 10 p.

Design of Rim Boards for Use with I-Joist Framing Systems.
Yeh, B. and T. G. Williamson. 2004.
Edinburgh, UK: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/37-10-1. 11 p.

Full-Scale Edgewise Shear Tests for Laminated Veneer Lumber.
Yeh, B. and T. G. Williamson. 2002.
Kyoto, JP: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/35-21-1. 14 p.


Wood Structural Panels

Acceptance Criteria for the Use of Structural Insulated Panels in High Risk Seismic Areas.
Yeh, B., T. D. Skaggs, T. G. Williamson, and Z.A. Martin. 2004.
Edinburgh, UK: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/37-15-7. 11 p.

Combined Shear and Wind Uplift Resistance of Wood Structural Panel Shearwalls.
Yeh, B. and T. Williamson. 2008.
St. Andrews, CA: International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/41-15-6. 12 p.

Development of Engineering Properties for Structural Panels.
Han, M., M. O'Halloran, S. Zylkowski, and B. Yeh. 1996.
New Orleans, US: International Wood Engineering Conference. Vol. 4, p 14-19.

Joint Research Report: Wood Structural Panel & Foam Insulation Systems.
Yeh, B., B. Herzog, and S. Glass.  2014.
Tacoma,  WA:  APA-The Engineered Wood Association & USDA Forest Products Laboratory. USDA Joint Venture Agreement 11-JV-11111136-070. 67 p.

Nail Withdrawl and Pull-Through Strength of Structural-Use Panels.
Herzog, B. and B. Yeh. 2006.
Portland, OR, US: World Conference on Timber Engineering. 8 p.

Using Wood Structural Panels for Shear and Wind Uplift Applications.
Yeh, B. and E. Keith. 2010.
Riva del Garda, IT: World Conference on Timber Engineering. 10 p.

Wind Tunnel Tests for Wood Structural Panels Used as Nailable Sheathing.
Yeh, B., A. Cope, and E. Keith.  2013.
Vancouver,  CA:  International Council for Research and Innovation in Building and Construction, Working Commission W18–Timber Structures. CIB-W18/46-15-7. 11 p.