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Towards a better understanding of the development of the strength in Asymmetrical Friction Connections (AFCs)
(New Zealand Society for Earthquake Engineering, 2020-04-22)
In the current design practice, the strength of Asymmetric Friction Connections (AFCs) is calculated considering the friction force developed at both sliding interfaces using the bolt tension reduced by the moment – shear ...
Finite element method for designing HF2V device force capacity
(New Zealand Society for Earthquake Engineering, 2020-04-22)
Supplemental energy dissipation devices are increasingly used to protect structures, limiting loads transferred to structural elements and absorbing significant response energy without sacrificial structural damage. High ...
Modelling of vertical control in magnetic levitation for building isolation during earthquakes
(New Zealand Society for Earthquake Engineering, 2020-04-22)
Earthquakes cause significant damage to buildings due to strong vibration of the ground. Levitating houses using magnets and electromagnets would provide a complete isolation of ground motion for protecting buildings from ...
Robustness and accuracy of model-free structural health monitoring
(New Zealand Society for Earthquake Engineering, 2020-04-22)
Rapid, accurate structural health monitoring (SHM) assesses damage to optimise decision-making. Many SHM methods are designed to track nonlinear stiffness changes as damage. However, highly nonlinear pinched hysteretic ...
Monitoring of lateral stiffness changes for a real building using hysteresis loop analysis
(New Zealand Society for Earthquake Engineering, 2021-04-14)
The BNZ building in Wellington, New Zealand was significantly damaged, and eventually demolished, due to the cumulative impact of three main earthquakes between 2013 and 2016. Although the building was equipped with a set ...
Upper and lower bound force capacity estimates of lead extrusion damper design force using classical extrusion models
(New Zealand Society for Earthquake Engineering, 2021-04-14)
To reduce seismic vulnerability and the economic impact of seismic structural damage, it is important to protect structures using supplemental energy dissipation devices. High force to volume (HF2V) devices are supplemental ...
Three-storey Configurable Steel Framed Building Incorporating Friction Based Energy Dissipaters: Structural Configuration and Instrumentation
(New Zealand Society for Earthquake Engineering, 2021-04-14)
A 9 m high, full-scale three-storey configurable steel frame composite floor building incorporating friction based connections is being tested using two linked bi-directional shake tables at the International joint research ...
Performance Comparison of Buckling-Restrained Braces and Friction Dampers Adopted for Retrofit of an Existing RC Frame Building Using Performance-Based Retrofit Procedure
(New Zealand Society for Earthquake Engineering, 2021-04-14)
This paper presents a performance-based retrofit approach for designing and performance comparison of Buckling -Restrained Braces (BRBs) and Friction Dampers as retrofit strategies for RC frame buildings. An overview of ...
Study on floor-slab out-of-plane effect of a 2-storey low-damage concrete wall building
(New Zealand Society for Earthquake Engineering, 2022-04-27)
In 2019, a system-level shake-table test of a 2-storey low-damage concrete wall building was conducted using the multi-functional shake-table array at Tongji University as part of an international collaborative project ...
A displacement-based design method of low-damage dual systems with hysteretic and nonlinear viscous energy dissipation
(New Zealand Society for Earthquake Engineering, 2023-04-19)
In 2019, a large shaking-table test was performed for a full-scale two-storey low-damage concrete wall building. The test building comprises unbonded post-tensioning (UPT) rocking walls and perimeter frames in both directions. ...