STUDY ON STRENGTH OF GLUED LAMINATED TIMBER BEAMS WITH TWO ROUND HOLES

Feasibility of glued laminated timber beams 1 with tropical hardwoods

11 A feasibility study of glulam was carried out in French Guiana using local wood species. The aim 12 was to determine gluing parameters affording satisfactory behaviour to manufactured glulam in 13 a tropical climate. 14 Three abundant wood species, with special properties, were selected for the study and 15 Resorcinol-Phenol-Formaldehyde resin was used for bonding. Three industrial parameter...

Computer-aided Design and Construction of Glued Laminated Timber Structure

The paper presents the computer-aided design and construction of a large glued laminated timber structure in Aosta, Italy. The structure was completely computer modelled with in-house developed software, which considers both torsion and curvature constraints of timber. Further proprietary software was used to develop, on a plane, the shape of each timber layer without torsion and curvature . Th...

Air-coupled ultrasound inspection of glued laminated timber

A novel air-coupled ultrasound (ACU) 120 kHz normal transmission system enabled successful imaging of bonding and saw cut defects in multilayered glulam beams up to 280 mm in height with a signal-to-noise ratio (SNR) of 40 dB. The main wave propagation paths were modeled; quasi-longitudinal and quasi-transverse modes were coupled in each lamella and the sound field was found to be shifted from ...

Summary STUDIES OF THE STRENGTH OF GLUED LAMINATED WOOD CONSTRUCTION

Structural Health Monitoring of Glued Laminated Timber with a Novel Air-coupled Ultrasound Method

Recent years have witnessed an increased use of glued timber products in construction, due to their highlights in versatility and sustainability. It is therefore a demanding necessity to develop non-destructive integrity assessment methods for structural health monitoring of timber constructions, both during production and utilization. Particularly, the integrity and load bearing capacity of th...