CASE STUDY OF 3-PLY COMMERCIAL SOUTHERN PINE CLT MECHANICAL PROPERTIES AND DESIGN VALUES

Authors

  • L. M. Spinelli Correa Mississippi State University
  • R. Shmulsky Head and Warren S. Thompson Professor of Wood Science & Technology, Department of Sustainable Bioproducts, Mississippi State University
  • F. J. N. França Assistant Research Professor, Department of Sustainable Bioproducts, Mississippi State University

Abstract

This work elucidates on a case study of industrially manufactured cross-laminated timber (CLT). Two methods are used to calculate specimens section modulus: Sgross and Seffective. The first assumes that specimens behave as a continuous material, whereas the second considers the cross laminations (shear analogy method). Although the shear analogy method is indicated for construction purposes, applications, such as trench shoring, matting, and work platforms, could benefit from a simpler calculation method. There- fore, theobjective of this work was to conduct a case study of Modulus of Rupture (MOR) and Modulus of Elasticity (MOE) of southern pine CLT to compare the previously mentioned calculation methods. Both parametric and nonparametric fifth percentiles and associated Fb values are reported and were substantially higher than those of the constituent lumber. For MOE, empirical testing and calculation based on gross moment of inertia provided lower values as compared with the constituent lumber.

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Published

2023-08-16

Issue

Vol. 55 No. 1 (2023): Wood and Fiber Science

Section

Research Contributions

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