Browsing by Author "9c75e36c-e609-498b-94dd-0e572ecb119c"
Now showing items 1-17 of 17
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A comparison of New Zealand seismic code requirements with other major design codes in the implementation of seismic resilient devices
Varier, Sriraj; Agarwal, Setu; Hashemi, Ashkan; Quenneville, Pierre; Zarnani, Pouyan (2021-04-14)In the ever-evolving earthquake engineering field, the need of the hour is to achieve earthquake-resistant buildings which have immediate occupancy following an earthquake. This implies that the demand for resilient dampers ... -
A New Rocking Concrete Shear Wall with Self-Centring Friction Connections
Mohammadi Darani, Farhad; Zarnani, Pouyan; Quenneville, Pierre (2023-04-19)In recent years, the intention towards developing and utilising low-damage systems in seismic resisting structures has been increasing amongst researchers and engineers. Replaceability and repairability after earthquakes ... -
Application of Low Damage Tension Braces in Top Extensions of Existing Buildings: A Case Study for Seismic Upgrade
Hashemi, Ashkan; Sayadi, Ali; Prionas, Ioannis; Zarnani, Pouyan; Quenenville, Pierre (2024-04-09)Tension-only braces are generally used as diagonal cross members (rods, flat bars or similar) to resist lateral loads. The application of these braces has been limited to low-rise buildings (generally up to two stories) ... -
Application of resilient rocking cores in low damage mass timber structures: A case study
Hashemi, Ashkan; Mpidi Bita, Hercend; Zarnani, Pouyan; Malczyk, Robert; Quenneville, Pierre; Varier, Sriraj (2022-04-27)The application of mass timber structures made with massive wooden panels such as Cross Laminated Timber (CLT) has significantly increased in the last few years owing to their many architectural and structural advantages, ... -
Case studies on low damage mass timber structures with resilient connections
Hashemi, Ashkan; Fast, Tobias; Fast, Paul; Dickof, Carla; Jackson, Robert; Dunbar, Andrew; Zarnani, Pouyan; Quenneville, Pierre (2021-04-14)There is increasing public pressure to have seismic-resistant structures made with massive wooden panels such as Cross Laminated Timber (CLT). It is well-known that the type and behaviour of the connections govern the ... -
Design of RSFJ Self-centring Brace for Ultimate Limit State
Yousef-Beik, Seyed Mohammad Mehdi; Varier, Sriraj; Hashemi, Ashkan; Zarnani, Pouyan; Quenneville, Pierre (2021-04-14)In previous studies, it was shown that the RSFJ brace assembly is prone to elastic buckling for which a new mechanism composed of two telescopic sections was introduced as a remedy to increase the elastic buckling load, ... -
Ductile timber connections: Understanding the factors contributing to their ductility
Quenneville, Pierre; Hashemi, Ashkan; Zarnani, Pouyan (2022-04-27)It is well accepted that ductility in a timber structure is achieved through its conections as the behaviour of timber is inherently brittle. It is thus important to understand the diferent parameters that contribute to ... -
Earthquake Protection of Residential Buildings: New Resilient System for Light Timber Framing
Zarnani, Pouyan; Chan, Nicholas; Hashemi, Ashkan; Quenneville, Pierre (2023-04-19)In NZ, similar to other countries, residential houses are mostly constructed using light timber framing. The common seismic solutions available in the market for such low-rise buildings are based on yielding of sacrificial ... -
Elastic Design (μ=1.0) of Damage Avoidance Structures
Darani, Farhad M.; Zarnani, Pouyan; Quenneville, Pierre (2022-04-27)Damage Avoidance Design (DAD) has been considered an efficient way for seismic design. Different solutions to achieve a robust DAD structure has been proposed and tested by researchers in the past. However, there is a lack ... -
Experimental and analytical evaluation of different failure modes of self-centring braces
Yousef-Beik, Seyed Mohammad Mehdi; Hashemi, Ashkan; Zarnani, Pouyan; Quenneville, Pierre; Seifi, Mehrdad; Veismoradi, Sajad (2022-04-27)As resilience of structures during seismic events is currently a main structural engineering topic, Low-damage self-centring braces have the potential to serve this purpose by becoming a common low-damage lateral load ... -
Experimental Testing of Brittle RC frames Strengthened by RSFJ-toggle bracing system
Veismoradi, Sajad; Watson, Tom; Baylis, Alex; Zarnani, Pouyan; Quenneville, Pierre (2024-04-09)This paper investigates the performance of the new retrofitting system, consisting of self-centering damper resilient slip friction joint (RSFJ)-toggle bracing system, as a global retrofitting method for deficient RC frame ... -
Full-scale shaking table testing of a low-damage steel structure using Resilient Slip Friction Joint
Bagheri, Hamed; Hashemi, Ashkan; Zarnani, Pouyan; Quenneville, Pierre; Yan, Zhenduo; Clifton, G. Charles; MacRae, Gregory Anthony (2020-04-22)The objective of this study is to give an overview of the design and numerical analyses related to a full-scale steel structure shaking table test that includes some structural applications of Resilient Slip Friction Joint ... -
Seismic damage avoidance design of moment resisting frames with innovative resilient connection
Shabankareh, Mohsen; Veismoradi, Sajad; Zarnani, Pouyan; Quenneville, Pierre (2020-04-22)Moment-resisting frames are one of the efficient lateral-load resisting systems in terms of providing architectural freedom in design and imposing smaller forces on foundations. Recent major earthquakes have resulted in ... -
Seismic retrofitting of RC-frames using Resilient Slip Friction Joint toggle-bracing system
Veismoradi, Sajad; Quenneville, Pierre; Yousef-Beik, Seyed Mohammad Mehdi; Zarnani, Pouyan (2020-04-22)Seismic retrofitting of the current non-ductile or limited ductile RC buildings is one of the challenging design topics among the scholars and engineers. The common technique for RC-frame retrofitting involves adding ... -
Seismic upgrading of friction-damped steel frames integrated with self-centring devices
Hashemi, Ashkan; Bagheri, Hamed; Zarnani, Pouyan; Quenneville, Pierre (2021-04-14)Conventional friction-based damping devices are known for their large energy dissipation capacity and economic benefits compared to other seismic mitigation systems. These devices have been implemented in many practical ... -
Shake-Table Testing of the Resilient Slip Friction Joints
Assadi, Soheil; Bagheri, Hamed; Yan, Zhenduo; Zarnani, Pouyan; Hashemi, Ashkan; MacCrae, Greg; Clifton, Charles; Jia, Liang-Jiu; Quenneville, Pierre (2024-04-09)A consortium of university researchers (UoA, AUT and UC) from New Zealand and Tongji University have undertaken shake-table tests of various friction damping devices. This testing program is under the banner of the ROBUST ... -
Using a self-centring friction damper as anchorage system for industrial tanks and vessels
Sahami, Kaveh; Zarnani, Pouyan; Quenneville, Pierre (2021-04-14)The conventional tank’s connections make the tanks to be either fully restrained or free for rocking motion, which generally creates a high level of force due to lack of ductility or large displacement demand due to uplift ...