Seismic Behaviour of Composite Panel Composed of Laminated Wood and Bearing Glass - Experimental Investigation

Abstract

Within the bilateral scientific project between the Institute of Earthquake Engineering and Engineering Seismology - UKIM-IZIIS, St. Cyril and Methodius University, Skopje, Republic of Macedonia and the Civil Engineering Faculty, University of Zagreb, Croatia, experimental testing of full scale composite timber-glass innovative panels was carried out on the seismic shaking table at IZIIS for the purpose of defining their behaviour and stability under real earthquake conditions. The seismic excitations selected for the shake-table testing of the model were four representative accelerograms recorded during the following earthquakes: El Centro, Petrovac, Kobe and Friuli. The idea was to investigate the seismic behavior of the model under several types of earthquakes, considering their different frequency content, peak acceleration and time duration. The performed tests showed clearly the behaviour of the composite panels and the failure mechanism under strong earthquake motion.

Safety Issues in the Seismic Design of Secondary Frameless Glass Structures

“…Several efforts have been also spent in the past for the design and analysis of glass structures with bolted connections (see for example [17][18][19][20][21]), but only few research investigations are available for point-supported facades in earthquake-prone regions (i.e., [22,23]), with a focus on the intrinsic flexibility under in-plane seismic loads. The dissipation capacity of ordinary curtain walls under seismic events was partly assessed also in [24,25] with the support of experiments, while an efficient, dissipative timber-glass composite shear wall was proposed in [26,27] for earthquake resistant buildings.…”

“…Several efforts have been also spent in the past for the design and analysis of glass structures with bolted connections (see for example [17][18][19][20][21]), but only few research investigations are available for point-supported facades in earthquake-prone regions (i.e., [22,23]), with a focus on the intrinsic flexibility under in-plane seismic loads. The dissipation capacity of ordinary curtain walls under seismic events was partly assessed also in [24,25] with the support of experiments, while an efficient, dissipative timber-glass composite shear wall was proposed in [26,27] for earthquake resistant buildings.In [28,29], it was demonstrated that even ordinary glass curtain walls can be efficiently involved in the dynamic response of multi-storey buildings under seismic events, as well as multi-hazards in general. Based on special dissipative connectors, the feasibility of a "distributed-Tuned Mass Damper (TMD)" concept was numerically explored, giving evidence of certain potential benefits for both the primary building and also for the glass facade components.…”

Kompozitni sustavi drvo - nosivo staklo u potresnom okruženju

“…Based on the conclusion of the study regarding the need to work out a new Eurocode [12], Žarnić and Rajčić launched an initiative to develop a new structural element made of a timber frame and glass infill. In their joint research, a group of authors [7,[32][33][34][35][36] applied a model that is somewhat different from the model used by other researchers in the field of timber -structural glass composite systems. The objective was to create joints in which the negative impact of fasteners on glass is prevented, and to develop a system that will dissipate seismic energy and thus be acceptable in earthquake-prone areas.…”

“…Numerous tests have been conducted with different boundary conditions, various details at the angles of the frame, and with the conduct of both monotonic and cyclic tests. Experimental tests have proven that timber-structural glass composite systems behave exceptionally well in dynamic and cyclic conditions [7,[32][33][34][35][36]. Many experimental tests have proven that numerous parameters affect behaviour of timberstructural glass composite systems subjected to horizontal Timber-structural glass composite systems in earthquake environment action, which makes the dimensioning and designing of such systems a very demanding process.…”

Čelični Okviri Sa Ispunom Od Klirita Ili Stakla Pod Cikličnim Opterećenjem

“…Спроведено је експериментално и нумеричко истраживање (МКЕ). У раду [5], велики дрвени оквири (3.2 m  2.7 m) са испуном од стакла испитивани су под сеизмичким оптерећењем. За сеизмичку побуду су усвојена четири различита акцелерограма.…”