Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Investigation of Performance of Perforated Steel Plate as Structural Fuse for Mass Timber Seismic Force Resisting Systems
Design of tall timber buildings in high seismic regions is still a challenge mainly due to lack of ductile connections, as a main component of Seismic Force Resisting System (SFRS). There are different methods to dissipate energy during major earthquakes including dissipation through yielding of steel material by going through plastic deformations, also called hysteresis energy dissipation. Under the induced seismic motions, such dissipative elements are intended to undergo excessive deformation whilst the rest of the structure remain intact with minimum damage. In this research, the focus is on the perforated steel plates as a dissipating energy device, also called seismic fuses, to enhance seismic performance of mass timber buildings during extreme earthquakes. Whilst the previous tests performed on such fuses demonstrated the potential of the concept to be used as different types of connections in the mass timber SFRS, their behaviour in cyclic loading can be improved. This chapter presents part of an extensive experimental study on perforated plate connections focusing on investigating the effect of various parameters such as number of rows of perforations, shape of perforations, size of perforations, steel plate thickness, and the steel link length between adjacent perforations. Thirty tests were performed in total, including 15 monotonic and 15 cyclic tests. Preliminary comparisons are made between the obtained hysteresis responses and their corresponding envelope curves versus the associated monotonic responses. It is shown that the ellipse and stagger patterns possess the largest ultimate displacement and stiffness, respectively. In addition, no significant enhancement is observed by adding more than four rows using a 5 mm perforation link size. Results of the perforated plate tests have shed light on the behaviour of the connection made of this plate type which will assist with the design of future test program on full-size mass timber connections consisting of such fuses.
Experimental Investigation of Performance of Perforated Steel Plate as Structural Fuse for Mass Timber Seismic Force Resisting Systems
Design of tall timber buildings in high seismic regions is still a challenge mainly due to lack of ductile connections, as a main component of Seismic Force Resisting System (SFRS). There are different methods to dissipate energy during major earthquakes including dissipation through yielding of steel material by going through plastic deformations, also called hysteresis energy dissipation. Under the induced seismic motions, such dissipative elements are intended to undergo excessive deformation whilst the rest of the structure remain intact with minimum damage. In this research, the focus is on the perforated steel plates as a dissipating energy device, also called seismic fuses, to enhance seismic performance of mass timber buildings during extreme earthquakes. Whilst the previous tests performed on such fuses demonstrated the potential of the concept to be used as different types of connections in the mass timber SFRS, their behaviour in cyclic loading can be improved. This chapter presents part of an extensive experimental study on perforated plate connections focusing on investigating the effect of various parameters such as number of rows of perforations, shape of perforations, size of perforations, steel plate thickness, and the steel link length between adjacent perforations. Thirty tests were performed in total, including 15 monotonic and 15 cyclic tests. Preliminary comparisons are made between the obtained hysteresis responses and their corresponding envelope curves versus the associated monotonic responses. It is shown that the ellipse and stagger patterns possess the largest ultimate displacement and stiffness, respectively. In addition, no significant enhancement is observed by adding more than four rows using a 5 mm perforation link size. Results of the perforated plate tests have shed light on the behaviour of the connection made of this plate type which will assist with the design of future test program on full-size mass timber connections consisting of such fuses.
Experimental Investigation of Performance of Perforated Steel Plate as Structural Fuse for Mass Timber Seismic Force Resisting Systems
Lecture Notes in Civil Engineering
Gupta, Rishi (Herausgeber:in) / Sun, Min (Herausgeber:in) / Brzev, Svetlana (Herausgeber:in) / Alam, M. Shahria (Herausgeber:in) / Ng, Kelvin Tsun Wai (Herausgeber:in) / Li, Jianbing (Herausgeber:in) / El Damatty, Ashraf (Herausgeber:in) / Lim, Clark (Herausgeber:in) / Daneshvar, Hossein (Autor:in) / Dickof, Carla (Autor:in)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Kapitel: 22 ; 317-332
06.08.2023
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Cross-Laminated Timber (CLT) shear walls , Timber Braced Frame (TBF) , Ductile connections , Structural fuse , Perforated steel plate connection , Seismic Force Resisting System (SFRS) , Link size Engineering , Building Construction and Design , Geoengineering, Foundations, Hydraulics , Transportation Technology and Traffic Engineering , Environment, general
Seismic Performance of Moment Resisting Timber Frames
| British Library Conference Proceedings | 1998