Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strengthening of old timber floor joists with cross-laminated timber panels and tempered glass strips
Highlights CLT panels and tempered glass strips were considered for strengthening timber floors. The tempered glass strips were either adhesively bonded or screwed to the timber joists. The procedure was evaluated by performing four-point bending tests on old timber floor joists. A significant increase in the effective bending stiffness was achieved. The bending test results were compared with analytical and numerical calculation results.
Abstract This article deals with the procedure for strengthening existing timber floor joists with CLT panels and additional tempered glass strips. The proposed strengthening procedure was investigated on eight old timber floor joists from the historical Zgornja Polskava manor from Slovenia. The glass strips were adhesively bonded or screwed to the joists, while the CLT panels were screwed to the joists with self-tapping screws. The proposed procedure was evaluated based on four-point bending tests of the joists. The efficiency was determined by comparing the bending test results of the strengthened and unstrengthened joists. The bonded glass strip variant always resulted in a higher load-bearing capacity and a higher effective bending stiffness, while the screwed glass strip also always resulted in a higher effective bending stiffness, but only in some instances increased the load-bearing capacity. The experimental results were compared with analytical and numerical calculation results. The results showed good agreement, despite the joists being visually severely damaged, which was also demonstrated by performing acoustic tomography on a timber joist sample.
Strengthening of old timber floor joists with cross-laminated timber panels and tempered glass strips
Highlights CLT panels and tempered glass strips were considered for strengthening timber floors. The tempered glass strips were either adhesively bonded or screwed to the timber joists. The procedure was evaluated by performing four-point bending tests on old timber floor joists. A significant increase in the effective bending stiffness was achieved. The bending test results were compared with analytical and numerical calculation results.
Abstract This article deals with the procedure for strengthening existing timber floor joists with CLT panels and additional tempered glass strips. The proposed strengthening procedure was investigated on eight old timber floor joists from the historical Zgornja Polskava manor from Slovenia. The glass strips were adhesively bonded or screwed to the joists, while the CLT panels were screwed to the joists with self-tapping screws. The proposed procedure was evaluated based on four-point bending tests of the joists. The efficiency was determined by comparing the bending test results of the strengthened and unstrengthened joists. The bonded glass strip variant always resulted in a higher load-bearing capacity and a higher effective bending stiffness, while the screwed glass strip also always resulted in a higher effective bending stiffness, but only in some instances increased the load-bearing capacity. The experimental results were compared with analytical and numerical calculation results. The results showed good agreement, despite the joists being visually severely damaged, which was also demonstrated by performing acoustic tomography on a timber joist sample.
Strengthening of old timber floor joists with cross-laminated timber panels and tempered glass strips
Unuk, Žiga (Autor:in) / Štrukelj, Andrej (Autor:in) / Žegarac Leskovar, Vesna (Autor:in) / Premrov, Miroslav (Autor:in)
31.05.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Technical Guidance Note: Design of timber floor joists
British Library Online Contents | 2012