New Zealand Society for Earthquake Engineering: Recent submissions
Now showing items 261-280 of 1987
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Effect of serviceability and over-strength mechanism on seismic response of low damage structures
(2023-04-19)Low-damage structural systems are designed in a way the earthquake damage is controlled and localised in pre-designated locations and components (e.g. fuses). These components are normally replaced, repaired or designed ... -
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 ... -
A Sensitivity Study of the Design Parameters Affecting the Global Stability of Buckling-Restrained Braced Frames
(2023-04-19)Recent research has focused on the ability of buckling-restrained braces and their connecting elements to act together as a series of resisting elements to resist mechanism formation. This potential failure mode is known ... -
Innovative Retrofit Solution for Exterior Unreinforced R.C. Beam-Column Joints
(2023-04-19)Most reinforced concrete (RC) frame buildings in New Zealand constructed pre-1960s have unreinforced beam-column joints. Following MBIE/NZSEE assessment guidance, the seismic performance of RC frames with unreinforced ... -
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 ... -
Response of Retrofitted 3D RC Frames under Dynamic Loading Conditions
(2023-04-19)In this study, the response of 3D double story reinforced concrete (RC) frames retrofitted through a diagonal friction damper under dynamic loading conditions, was evaluated using shaking table tests. A friction damper ... -
Seismic strengthening of RC walls using FRP to prevent axial failure
(2023-04-19)Reinforced concrete (RC) walls with insufficient compressive strain capacity at the boundary region are vulnerable to premature axial failure, limiting the drift capacity. A solution to strengthen these deficient RC walls ... -
Case Study for Seismic Assessment of an Existing Asymmetric non-prismatic Unique Reinforced Concrete- encased Steel Plate Column in Wellington
(2023-04-19)This case study presents a tailored approach to assessing a high-rise building in the Wellington CBD constructed primarily from reinforced concrete encased steel frames. This construction is rare in New Zealand, and it is ... -
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. ... -
Experimental proof of the effectiveness of timber panels in the seismic retrofit of URM buildings
(2023-04-19)Recently there has been a growing interest by both academia and the industry in the possibility of using timber as a strengthening material for the seismic retrofit of unreinforced masonry (URM) buildings. This possibility ... -
Field miniature prototype development and pilot project design of subsurface compacted Rubble Raft (SCRR)
(2023-04-19)Subsurface Compacted Rubble Raft (SCRR) is a patented wide-area ground improvement solution that focuses on solving severe liquefaction hazards. SCRR technique directly targets the liquefaction layers by constructing a ... -
Vs30 Assessments: Understanding the Underground
(2023-04-19)Understanding the vulnerability of a construction site to seismic shaking is fundamental to robust building design in New Zealand. The recent release of the updated National Seismic Hazard Model reflects this, with an ... -
Performance assessment of shallow founded buildings on liquefiable soils
(2023-04-19)In evaluating foundation options for sites featuring liquefiable soils, shallow raft foundations may remain a suitable and preferred solution, provided the seismic performance can be demonstrated to be adequate. In evaluating ... -
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 ... -
Accounting for the Influence of Intrinsic Soil Properties and State Variables on Liquefaction Triggering
(2023-04-19)Current simplified liquefaction triggering procedures are limited in their ability to capture the effects of intrinsic properties (grain size, mineralogy, grain shape, etc.) and the state properties (stress state, void ... -
Mitigation of liquefaction-induced lateral spread ground displacements using an in-ground pile wall
(2023-04-19)Liquefaction-induced lateral spread ground displacements can be damaging to buildings and their foundations. Buildings can either be designed/strengthened to tolerate such displacements, or ground improvement (e.g. compaction, ... -
Multidirectional cyclic testing of self-centering cross-laminated timber shear wall sub-assemblies
(2023-04-19)Driven by demand for sustainable buildings, mass timber, specifically cross-laminated timber (CLT), is being more widely used in mid-rise buildings in the US. In areas of the US with a significant seismic (i.e., earthquake) ... -
Earthquake Protection of Residential Buildings: New Resilient System for Light Timber Framing
(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 ... -
Establishing the Transverse Load Capacity of a Timber-framed Classroom Block
(2023-04-19)In 2013, longitudinal testing of single storey timber-framed classroom blocks was initiated by the Ministry of Education and completed by BRANZ to better understand the seismic resilience of timber-framed buildings within ... -
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 ...