Study on the strength of glued laminated timber beams with round holes: proposal of the design formula for the splitting strength, Journal of Wood Science

When a glued laminated timber (GLT) beam with a round hole is subjected to a shear force and bending moment, the hole will crack and fail due to a large tensile stress perpendicular to the grain and shear stresses. If the stresses acting on the hole are known, it is possible to estimate the fracture load. However, it is necessary to obtain the stresses acting on the hole by finite element analysis, which is very time consuming. In this study, to easily estimate the fracture load, we proposed a formula to estimate the bearing capacity at the time of a hole fracture by obtaining the stress acting on the hole through finite element analysis and an approximate formula. The validity of the proposed formula was verified using the existing experimental data of a GLT beam. As a result, it was confirmed that the proposed equation can estimate the fracture load of GLT beams in Japan and that the proposed equation can estimate the fracture load of GLT beams in countries other than Japan with some accuracy.

Study on the strength of glued laminated timber beams with round holes: proposal of the design formula for the splitting strength, Journal of Wood Science

Full article: Study on a newly developed diagonal connection for hybrid timber trusses made of spruce glulam and beech laminated veneer lumber

International Council For Research and Innovation in Building and Construction Working Commission W18 - Timber Structures, PDF, Strength Of Materials

Study on the strength of glued laminated timber beams with round holes: difference in structural performance between homogeneous-grade and heterogeneous-grade timber, Journal of Wood Science

Study on the strength of glued laminated timber beams with round holes: proposal of the design formula for the splitting strength, Journal of Wood Science

Glulam - an overview ScienceDirect Topics

Study on the strength of glued laminated timber beams with round holes: difference in structural performance between homogeneous-grade and heterogeneous-grade timber, Journal of Wood Science

Study on the strength of glued laminated timber beams with round holes: difference in structural performance between homogeneous-grade and heterogeneous-grade timber, Journal of Wood Science

Novel internally LVL-reinforced glued laminated timber beams with large holes - ScienceDirect

Design and analysis of timber-concrete-based civil structures and its applications: A brief review