Jan Niederwestberg 

Current Research

• Influence of Laminate Characteristics on Cross Laminated Timber

• Shear Properties of Multi-Layer Engineered Wood Products

• Mass Timber Shear Walls for Balloon Construction

• Timber Connections

• Commercial Product Testing

Research Interests

• Engineered Wood Products

• Mass Timber

• Timber Connections

• Timber-Concrete Composite Systems 

Publications

Dissertations

• Niederwestberg, J. (2019). Influence of Laminate Characteristics on Properties of Single-Layer and Cross laminated Timber (CLT) Panels. (Doctoral Dissertation). University of New Brunswick, Fredericton, Canada. (Supervisor: Dr. Y. H. Chui & Dr. M. Gong) [Link]

• Niederwestberg, J. (2010). Bemessungsprogramm nach DIN 1052:2008-12 für asymmetrische Satteldachbinder as Brettschichtholz [Design Program for Asymmetrical Pitched Cambered Beams in Accordance to DIN 1052:2008-12]. (Diploma Thesis). Münster University of Applied Sciences, Münster, Germany. (Supervisor: Prof. Dr.-Ing. G. Schaper; in cooperation with merz kley partner ZT GmbH, Dornbirn, Austria)

• Niederwestberg, J. (2008). Bending Behaviour of Timber-Concrete Composite Floors with Ex Post Tensioned Shear Connectors. (Master Thesis). Edinburgh Napier University, Edinburgh, Scotland. (Supervisor: Dr. A. Kermani)

Articles

• Mirdad, M. A., Jucutn, A., Khan, R., Niederwestberg, J., & Chui, Y. H. (2022). Embedment and Withdrawal Stiffness Predictions of Self-Tapping Screws in Timber. Construction and Building Materials, 345, 128394. [Link] 

• Daneshvar, H., Niederwestberg, J., Letarte, J. P., & Chui, Y. H. (2022). Yield Mechanisms of Base Shear Connections for Cross-Laminated Timber Shear Walls. Construction and Building Materials, 335, 127498. [Link] 

• Daneshvar, H., Niederwestberg, J., Dickof, C., Jackson, R., & Chui, Y. H. (2022). Perforated Steel Structural Fuses in Mass Timber Lateral Load Resisting Systems. Engineering Structures 257 (2022): 114097. [Link]

• Niederwestberg, J., Zhou, J., Chui, Y. H., & Huang, D. (2021). Shear and Normal Strain Distributions in Multi-Layer Composite Laminated Panels under Out-of-Plane Bending. Advances in Civil Engineering. (2):1-15. [Link]

• Niederwestberg, J., Daneshvar, H., Chui, Y. H., & Chen, Z. (2021). Contribution of Partition Walls in Lateral Load Resisting Systems of Low Rise Light Wood Frame Buildings. Journal of Structural Engineering, 147(4), 04021010. [Link]

• Daneshvar, H., Niederwestberg, J., Dickof, C., & Chui, Y. H. (2021). Structural Behavior of Deep CLT Lintels Subjected to Concentric and Eccentric Loading. Journal of Building Engineering, 103101. [Link]

• Khan, R., Niederwestberg, J., & Chui, Y. H. (2021). Influence of Insertion Angle, Diameter and Thread on Embedment Properties of Self-Tapping Screws. European Journal of Wood and Wood Products. 1-12. [Link]

• Spasojevic, M., Daneshvar, H., Niederwestberg, J., Chen, Y., Chui, Y. H., & Gong, M. (2021). Structural Performance of Light Wood Shear Walls Built with Insulated Sheathing Panels. Engineering Structures, 241, 11249. [Link]

• Sun, J., Niederwestberg, J., Cheng, F., & Chui, Y. H. (2020). Frequencies Prediction of Laminated Timber Plates Using ANN Approach. Journal of Renewable Materials, 8(3), 319-328. [Link]

• Zhou, J., Chui, Y. H., Niederwestberg, J., & Gong, M. (2020). Effective Bending and Shear Stiffness of Cross-Laminated Timber by Modal Testing: Method Development and Application. Composites Part B: Engineering, 198 (2020): 108225. [Link]

• Zhang, S., Zhou, J., Niederwestberg, J., & Chui, Y. H. (2019). Effect of End Support Restraints on Vibration Performance of Cross Laminated Timber Floors: An Analytical Approach. Engineering Structures, 189, 186-194. [Link]

• Niederwestberg, J., Zhou, J., & Chui, Y. H. (2018). Comparison of Theoretical and Laboratory Out-of-Plane Shear Stiffness Values of Cross Laminated Timber Panels. Buildings, 8(10), 146. [Link]

• Niederwestberg, J., Zhou, J., & Chui, Y. H. (2018). Mechanical Properties of Innovative, Multi-Layer Composite Laminated Panels. Buildings, 8(10), 142. [Link]

• Zhang, S., Zhou, J., Niederwestberg, J., & Chui, Y. H. (2018). Development of Rotational Fixity Factors for Vibration Design of Cross-Laminated Timber Floors. [Link]

Conference Papers

• Daneshvar, H., Niederwestberg, J., Letarte, J.-P., Dickof, C., & Chui, Y. H. (2021). Seismic Performance of Base Shear Connections in Cross-Laminated Timber Shearwalls. World Conference on Timber Engineering 2021, Santiago de Chile, Chile.

• Dickof, C., Jackson, R., Daneshvar, H., Niederwestberg, J., & Chui, Y. H. (2021). Perforated Plates as Dissipative Connections in Timber Seismic Force Resisting Systems. World Conference on Timber Engineering 2021, Santiago de Chile, Chile.

• Daneshvar, H., Niederwestberg, J., Dickhof, C., Spencer, J., Letarte, J.-P., & Chui, Y. H. (2019). Seismic Performance of End Brace Connections in Ductile Braced Timber Frame. INTER Meeting 2019, Tacoma, USA. [Link]

• Daneshvar, H., Niederwestberg, J., Dickhof, C., Letarte, J.-P., & Chui, Y. H. (2019). Cross-Laminated Timber Shear Walls in Balloon Construction: Seismic Performance of Steel Connections. For Modular and Offsite Construction Summit 2019, Banff, Canada. [Link]

• Niederwestberg, J., Zhou, J., & Chui, Y. H. (2018). Shear Properties of Innovative Multi-Layer Composite Laminated Panels. For World Conference on Timber Engineering 2018, Seoul, Rep. of Korea.

• Niederwestberg, J., Zhou, J., & Chui, Y. H. (2018). Strain and Stress Distribution of 5-Layer Composite Laminated Panels using Digital Imaging Correlation Technique. For World Conference on Timber Engineering 2018, Seoul, Rep. of Korea.

• Zhou, J., Niederwestberg, J., & Chui, Y. H. (2018). Bending Properties of Innovative Multi-Layer Composite Laminated Panels. For World Conference on Timber Engineering 2018, Seoul, Rep. of Korea.

• Niederwestberg, J., Chui, Y. H., & Gong, M. (2016). Influence of Layer and Laminate Characteristics on Shear Properties of Cross Laminated Timber and Hybrids. In Proceedings of World Conference on Timber Engineering 2016, Vienna, Austria.

• Niederwestberg, J., & Chui, Y. H. (2014). Characterizing Influence of Laminate Characteristics on Elastic Properties of Single-Layer in Cross Laminated Timber. In Proceedings of World Conference on Timber Engineering 2014, Quebec City, Canada. [Link]

• Niederwestberg, J., Zhou, J., & Chui, Y. H. (2014). Influence of Boundary Conditions in Modal Testing on Evaluated Elastic Properties of Mass Timber Panels. In Proceedings of World Conference on Timber Engineering 2014, Quebec City, Canada.

• Zhou J, Niederwestberg J., Chui Y. H., & Hu C. (2014). Determination of Elastic Constants of Cross Laminated Timber (CLT) by Modal Testing. Proceeding of the 12th Pacific Rim Bio-Based Composites Symposium, Beijing, China.

• Niederwestberg, J., & Chui, Y. H. (2012). Characterizing Influence of Laminate Characteristics on Elastic Properties of Cross-Laminated Timber. In Proceedings of World Conference on Timber Engineering 2012, Auckland, New Zealand.

Technical/Commercial Reports

• Niederwestberg, J., Chui, Y. H., & Gong, M. (2021). Creep Test Summary for SH3X, SH6X and SH10X Steel Headers for CCMC Approval, Report submitted to Star Building Components Inc., Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Daneshvar, H., Niederwestberg, J., & Chui, Y. H. (2020). Experimental Study of Cross Laminated Timber (CLT) Lintels Subjected to Concentric and Eccentric Loading. Report submitted to Fast + Epp Engineering, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Niederwestberg, J., Chui, Y. H., & Gong, M. (2020). Load-Carrying Capacities for Rhino SH4X Steel Headers and Creep Tests for SH3X, SH6X and SH10X Steel Headers for CCMC Approval, Report submitted to Star Building Components Inc., Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Chui, Y. H., Spencer, J., Islam, S., Joyce, T., Daneshvar, H., Niederwestberg, J., & Spasojevic, M. (2019). Survey to Identify Mass Timber Research Needs and Priorities, Report submitted to Natural Resources Canada, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Niederwestberg, J., Zhang, S., & Chui, Y. H. (2019). Development of Reliability-based Design Properties for Prestige Structural Insulated Panels, Report submitted to National Research Council - Canadian Construction Materials Centre, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Niederwestberg, J., Azni, A. S., & Chui, Y. H. (2019). Development of Load-Carrying Capacities for Rhino X Steel Headers for CCMC Approval, Report submitted to Star Building Components Inc., Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Zhou, J., Niederwestberg, J., & Chui, Y. H. (2017). Development and Evaluation of 5-Layer Lumber-SCL Massive Timber Panel Products. Report submitted to Alberta Innovates BioSolutions, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Qiu, Y., Spencer, J., Niederwestberg, J., & Chui, Y. H. (2017). Development of Load-Carrying Capacities for SH8 Rhino Steel Header, Submitted to Leduc Truss, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, AB.

• Chui, Y. H., Niederwestberg, J., Spencer, J., & Qiu, Y. (2017). Development of Load-Carrying Capacities for Rhino Steel Header, Submitted to Leduc Truss, Department of Civil & Environmental Engineering, University of Alberta, Edmonton, Canada.

• Li, L., Niederwestberg, J., & Chui, Y. H. (2017) Development of Engineering Calculation Approach for Light Wood-Frame Walls with Prefabricated Shear Wall Panels. Final Report # WSTC 2016-020 Submitted Léon Chouinard &; Fils Cie Ltée, Wood Science and Technology Centre, University of New Brunswick, Fredericton, Canada.

• Chui, Y. H., Gong, M. & Niederwestberg, J. (2015). Development of a Lumber-SCL Massive Timber Panel Product. Final Report #: WSTC2013-015 Submitted Alberta Innovates BioSolutions, Wood Science and Technology Centre, University of New Brunswick, Fredericton, Canada.

Accepted & Submitted Papers

• Zhou, J., Chui, Y. H., Niederwestberg, J., & Gong, M. (2020). Effective Bending and Shear Stiffness of Cross-Laminated Timber by Modal Testing: Experimental Verification. Manuscript submitted for publication.