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Open AccessArticle

Proposed Simplified Approach for the Seismic Analysis of Multi-Storey Moment Resisting Framed Buildings Incorporating Friction Sliders

1
Department of Built Environment Engineering, Auckland University of Technology, Auckland 1010, New Zealand
2
Department of Civil and Environmental Engineering, University of Auckland, Auckland 1010, New Zealand
3
Department of Civil Engineering, University of Salerno, 84084 Salerno, Italy
4
Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch 8041, New Zealand
*
Author to whom correspondence should be addressed.
Buildings 2019, 9(5), 130; https://doi.org/10.3390/buildings9050130
Received: 29 April 2019 / Revised: 20 May 2019 / Accepted: 20 May 2019 / Published: 23 May 2019
An innovative, simplified, and accurate model is proposed and developed to enable simplified yet realistic time history analysis of multi-storey buildings with moment resisting connections using friction energy dissipaters in the commonly used structural analysis and design program, SAP2000. The analyses are rapid to undertake, thereby enabling detailed study of the influence of many building system effects on the overall response. This paper presents the outcome of dynamic analysis of a complete 13-storey moment resisting steel building with Sliding Hinge Joints as the beam-column connections, considering the influential self-centring factors such as MRF and gravity columns continuity as well as column base and diaphragm flexibilities. The building is one of the Te-Puni towers, which are structural steel apartment buildings with steel-concrete composite floors, designed according to the low damage design philosophy, built in Wellington, New Zealand in 2008 and which have already been subjected to two significant earthquakes. The key objectives of the research have been to take the design of the 13-storey building and convert that into the proposed simplified model required for time history seismic analysis, to undertake analysis under scaled El-Centro earthquake record, investigate the peak inter-storey drift and the residual drift of the building, and determine the influence of column base rotational stiffness, floor slab out of horizontal plane displacement, type of friction damper, and MRF and gravity column continuity. It is concluded that the response of the building is stable and predictable, as expected, and that the post-earthquake state of the building, particularly from the self-centring point of view, is well within the limits for maintaining operational continuity following an ULS level design earthquake. View Full-Text
Keywords: Non-Linear Time-History Analysis; Sliding Hinge Joint; Self-centring; Friction Sliding Connection; Low damage; Energy Dissipation; Seismic Design Non-Linear Time-History Analysis; Sliding Hinge Joint; Self-centring; Friction Sliding Connection; Low damage; Energy Dissipation; Seismic Design
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Ramhormozian, S.; Clifton, G.C.; Latour, M.; MacRae, G.A. Proposed Simplified Approach for the Seismic Analysis of Multi-Storey Moment Resisting Framed Buildings Incorporating Friction Sliders. Buildings 2019, 9, 130.

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