Design Concept for CLT - Reinforced with Self-Tapping Screws

https://research.thinkwood.com/en/permalink/catalogue1486
Year of Publication
2014
Topic
Mechanical Properties
Design and Systems
Material
CLT (Cross-Laminated Timber)
Author
Mestek, Peter
Dietsch, Philipp
Organization
Technical University of Munich
Year of Publication
2014
Country of Publication
Germany
Format
Report
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Design and Systems
Keywords
Self-Tapping Screws
Shear Stress
Rolling Shear Stress
Language
English
Research Status
Complete
Summary
Concentrated loads on Cross Laminated Timber elements (CLT) in areas of point supports or load applications cause high local shear stresses. Inclined self-tapping screws with continuous threads have turned out to be an effective reinforcement. As neither the German design standard DIN 1052 [2] nor technical approvals cover this construction method a research project funded by the AiF [3] was conducted to gather basic information for its application. These basics include the determination of shear stresses next to concentrated loads, the interaction of compression perpendicular to the grain and rolling shear stresses as well as theoretical and experimental examinations of the load bearing behaviour of reinforced CLT-elements. This paper presents the main research results. A design concept validated by means of the test results is proposed [4].
Online Access
Free
Resource Link
Less detail