Proceedings of the 2021 New Zealand Society for Earthquake Engineering Annual Technical Conference: Recent submissions
Now showing items 41-60 of 115
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Design of RSFJ Self-centring Brace for Ultimate Limit State
(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, ... -
SESOC Software – Seismic Design Tools
(2021-04-14)SESOC has accumulated a number of structural software design programs, over time, which we actively maintain/enhance, also on occasion developing a new tool for the benefit of our members – and the NZ design fraternity. This ... -
Influence of damping models on nonlinear seismic response of a base isolated building
(2021-04-14)This paper discusses the effect of different damping models on nonlinear seismic response of a 8 storey 2D base isolated (BI) building: (1) Rayleigh damping proportional to the mass and initial stiffness matrices, (2) ... -
Base isolation: the good, the bad and the ugly
(2021-04-14)In the light of the recent Christchurch and Kaikoura earthquakes and the life safety and economic uncertainties they pose, the need for “low damage design” has become more important. In theory a “low damage design” should ... -
Incorporating the influence of duration on dynamic deformation capacity in seismic assessment
(2021-04-14)The dynamic deformation capacity of a structure is the peak storey drift ratio it can safely withstand without collapsing due to dynamic instability. In a previous study, the authors developed a robust procedure to compute ... -
Strength requirements for non-structural components responding nonlinearly under earthquake excitation
(2021-04-14)This study develops a practice-oriented method to design non-structural components and their restraints to lower strengths than needed to remain elastic under earthquake ground motion by permitting nonlinear non-structural ... -
Seismic Design and Analysis of a Medium Density Residential Building
(2021-04-14)There is an increasing recognition that good seismic performance requires not only checks on life-safety but also limitation of damage, disruption and losses. In light of this, several proposals are currently being developed ... -
A Typical Commercial Low Rise Structure - Case Study
(2021-04-14)The Case study building was designed and built in 2003. The building is a single storey rectangular shaped 25m x 21m steel portal frame structure with precast concrete panels. The building is typical of a modern commercial ... -
Investigating the impact of design criteria on the expected seismic losses of an office building
(2021-04-14)Low Damage Seismic Design (LDSD) guidance material being developed by Engineering NZ is considering a design drift limit for multi-storey buildings of 0.5% at a new damage control limit state (DCLS). The impact of this new ... -
Advances in Floor Diaphragm In-Plane Modelling Using Truss Elements
(2021-04-14)Different methods to model building floor diaphragm in-plane stiffness with truss elements are compared to identify the method most suitable for analysis in design. The methods considered include (i) Elastic truss, (ii) ... -
Innovative seismic upgrade of Left Bank Art Gallery, Greymouth.
(2021-04-14)The Grey District Council commissioned the strengthening of the C1910 Left Bank Art Galley building in 2018 to preserve its historical value and improve the building’s seismic safety rating. Formally the Bank of New Zealand ... -
Seismic Restraint Design and Documentation for the Christchuch Acute Services Building
(2021-04-14)Seismic restraint design in New Zealand for large services intense buildings is a developing field. There are few examples of services intense Importance Level 4 buildings where fully compliant and modelled seismic restraint ... -
Developments in the use of high resolution point cloud data to inform heritage restoration
(2021-04-14)While considered an emerging technology at the time of the Canterbury Earthquakes, extensive use of laser scanning derived point cloud data over the last 10 years has resulted in refined processes with new and existing ... -
Seismic Strengthening Auckland's Waterfront
(2021-04-14)Seawalls were constructed in sections between 1879 and 1925 to form Quay Street on the waterfront of Downtown Auckland. These seawalls have essentially remained structurally unchanged since they were first constructed and ... -
CentrePort Wellington: Resilient regeneration activity
(2021-04-14)Wellington’s Pipitea port precinct - a critical lifeline and economic contributor to Wellington and surrounding regions – suffered significant damage and associated operational disruption as a result of the 2016 Kaikoura ... -
Upper and lower bound force capacity estimates of lead extrusion damper design force using classical extrusion models
(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 ... -
The Optimised Sliding Hinge Joint (OSHJ): Design, Detail, and Implementation in Practice
(2021-04-14)The Optimised Sliding Hinge Joint (OSHJ) is a low-damage, resilient, versatile, and cost effective seismic resisting system developed primarily for Moment Resisting Steel Framed (MRSF) buildings. The OSHJ is the optimized ... -
Enhancing seismic performance of structure with different configuration of passive D3 viscous damper
(2021-04-14)For each structure and project, there is a unique desire. Seismic building performance can be increased using dissipation systems like viscous dampers. However, these improvements are offset by the added cost if the total ... -
Using a self-centring friction damper as anchorage system for industrial tanks and vessels
(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 ... -
Enhancing seismic performance of existing buildings using viscous dampers for Forward-Directivity Earthquakes – The Challenges
(2021-04-14)Enhancing the performance of an existing building with viscous dampers for a Wellington site requires thorough consideration of near-fault effects, the Wellington Fault being so close. Earthquake records with forward-directivity ...