STRENGTH ANALYSIS OF GLUED-IN STEEL RODS WITH DIFFERENT LOCATIONS IN CLT PANELS CROSS SECTION

Abstract

New types of wood based building materials to which the CLT refers require an accurate evaluation of the strength of various types of connections. CLT panels connections with glued-in steel rods are of interest due to the possibility of creating quickmounted and rigid joints in the factory. Since the CLT have the structure of the perpendicular orientated boards in adjacent layers, the strength and behaviour of the pasted rods is difficult to predict. The purpose of this study was to establish the strength of the glued-in rods by pull-pull tests with different locations relative to the boards layers in the cross-section of the CLT panel. Diameter of all considered steel rods was smaller than thick of timber planks 30 mm in 5-lyers CLT specimens without gaps and stress relieves. Anchored length of rods in all specimens was 100 mm by using two component epoxy adhesive system.

Keywords

• cross laminated timber
• clt
• connection
• glued-in steel rods
• joint
• prefabricated panels
• strength by pull-pull tests