Browsing by Issue Date
Now showing items 301-320 of 1863
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Experimental study on structural performance and damage characteristics of repaired flexural RC members
(2023-04-19)Understanding the expected seismic performance recovery of repaired members is important to make an effective recovery plan for damaged buildings. In this research, three RC beam and three RC wall specimens were subjected ... -
Retrofit and Repair of Reinforced Concrete Columns with Active Confinement
(2023-04-19)There are too many reinforced concrete (RC) columns built before the 1970s without sufficient transverse reinforcement. Past earthquakes have demonstrated the vulnerability of such columns and the need for their retrofit. ... -
Understanding and Improving the Seismic Resilience of Hospital Buildings
(2023-04-19)The establishment of Te Whatu Ora – Health New Zealand has enabled more direct national oversight of public hospital buildings across New Zealand. This has also led to the need for a more comprehensive understanding of ... -
Source of numerical non-convergence in the analysis of bilinear SDOF systems
(2023-04-19)Numerical non-convergence is an important factor impeding the research into and widespread adoption of the nonlinear dynamic analysis. Upon encountering non-convergence at an analysis time step when using an implicit time ... -
Framework Development for a Hybrid Geotechnical-Geospatial Liquefaction Assessment Model
(2023-04-19)Liquefaction assessment can be performed using various bodies of knowledge, each with an associated accuracy based on the data involved. Liquefaction assessment models based on directly measured subsurface geotechnical ... -
How to assemble elemental damping?
(2023-04-19)An elemental damping model has recently been proposed as an alternative to the Rayleigh damping model to avoid spurious damping forces during inelastic seismic response. It has shown great potential because it has the ... -
Effect of uncertainties in collapse assessment of coupled CLT walls with energy dissipators as couplers and resilient hold-downs
(2023-04-19)Rocking coupled CLT walls with energy dissipaters as couplers provide increased stiffness and damping, enabling the design realisation of taller CLT structures. Researchers have proposed design methods and conducted ... -
Earthquake strengthening clay brick masonry parapets – proof-tested solutions
(2023-04-19)Unrestrained unreinforced clay brick masonry (URM) parapets are found atop of a large number of vintage URM buildings. Parapets are typically cantilevered wall structural elements that form decorative and ornamental features ... -
Estimates of site periods from mHVSR analysis of IRIS temporary seismograph networks
(2023-04-19)The effects of soil stratigraphy and sedimentary basins on earthquake ground shaking are well-established. These effects can be represented using a range of site metrics, with the focus of this paper being the fundamental ... -
Risk thresholds in the built environment
(2023-04-19)Engineering and building design inherently deal with risk. But risk is rarely—if ever—explicitly considered. Most building design in Aotearoa New Zealand (i.e., to B1/VM1 NZS1170) targets an annual individual fatality risk ... -
Chevron Buckling Restrained Brace Frame Seismic Behaviour Considering Out-of-Plane Effects
(2023-04-19)This project evaluates the behaviour of buckling restrained braces (BRBs) in a chevron configuration considering IP and OOP frame deformations using software capable of second-order inelastic frame analysis. Initially a ... -
Method for the explicit consideration of ground motion duration in NZS 1170.5
(2023-04-19)Recent studies have demonstrated that longer earthquake ground motion duration can reduce structural deformation capacity and increase collapse risk. This study introduces a method to explicitly account for such effects ... -
Optimum service and seismic structural protection with adaptive dampers and base isolators for immediate occupancy after the earthquake
(2023-04-19)To improve serviceability of important civil structures during seismic action, base isolators and dampers need to perform with high efficiency independent of the ground shaking level. In service and seismic actions, base ... -
Assessment of lateral spread potential used smeared strengths of liquefied/non liquefied soils
(2023-04-19)Liquefaction-induced lateral ground displacements (lateral spread) are typically assessed using empirical methods where a continuous weak (liquefied) layer is expected. These methods are not appropriate for variable fill ... -
The next generation of drywall construction for low-damage design
(2023-04-19)Low-damage structural systems that can withstand large earthquakes with no structural damage, or localised damage in pre-defined fuses, have become commonplace in the past one to two decades. These systems however, generally ... -
Comparison of optimal versus a convenient distribution method of viscous damper design
(2023-04-19)A simple and convenient method often adopted by practicing engineers designing supplemental viscous dampers to a building is to calculate damping coefficients of viscous dampers corresponding to a desired added damping ... -
Numerical Investigation of Australasian Cold-Formed Steel strap-braced walls under lateral and vertical load
(2023-04-19)Cold-Formed Steel (CFS) gained popularity in residential buildings due to its dimensional accuracy, lightweight, resistance to shrinking and creeping, durability, low embodied carbon and CNC manufacturing abilities. The ... -
Societal Expectations for Functional Recovery of Primary and Secondary School Buildings
(2023-04-19)In the ongoing investigation of functional recovery requirements, the spectrum of functional requirements for different facility types is necessary to ensure buildings are designed, constructed, and maintained to meet ... -
A prescriptive method for the design of new steel moment frame structures with supplemental damping
(2023-04-19)This paper presents a prescriptive method for the design of new steel moment frame structures with supplemental damping using fluid viscous dampers. The prescriptive method uses Modal Response Spectrum Analysis (MRSA) ... -
A displacement-based design method of low-damage dual systems with hysteretic and nonlinear viscous energy dissipation
(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. ...