@article {bnh-6656, title = {Retrofitting of a high-set Queensland house for wind loading}, number = {541}, year = {2019}, month = {06/2019}, institution = {Bushfire \& Natural Hazards CRC}, address = {Melbourne}, abstract = {

This report presents a preliminary study on the retrofitting/upgrading of roofing connections in an older Australian house type to improve its performance under wind loading. The house type selected is a rectangular plan high-set house with a low pitched gable roof. These houses are common in North Queensland and have been the subject of previous vulnerability studies by the Cyclone Testing Station. In previous studies this house type is also known as the {\textquoteleft}Group-4 House{\textquoteright}.

Vulnerability to wind loads of a population of these houses will be estimated using the Vulnerability and Wind Simulation (VAWS) software that is currently under development by the Cyclone Testing Station and Geoscience Australia. The changes to vulnerability functions for four connection upgrading scenarios are investigated. These preliminary analyses are used to inform initial cost benefit estimates for retrofitting older Australian houses.

}, keywords = {Housing, retrofitting, roofing, wind loading}, issn = {541}, author = {Korah Parackal and John Ginger and Martin Wehner and David Henderson} } @conference {bnh-6028, title = {Analytical development of seismic retrofit technique for RC beam-column joint using single diagonal haunch}, booktitle = {24th Australian Conference on the Mechanics of Structures and Materials}, year = {2016}, month = {12/2016}, publisher = {Swinburne University of Technology}, organization = {Swinburne University of Technology}, address = {Perth, Australia}, abstract = {

Exterior beam-column joint is typically the weakest link in a limited-ductile RC frame structure. The use of diagonal haunch element has been considered as a desirable seismic retrofit option for preventing brittle failure of the joint. Previous research has been focused on implementing double haunches, whilst the performance of using single haunch element as a less-invasive and more architecturally favourable retrofit option has not been investigated. Hence, the feasibility of using single haunch system for retrofitting RC beam-column joint is explored in this study. This paper presents the analytical development of the technique and illustrates its effectiveness by showing the changes in the shear demand at the joint.

}, keywords = {building, construction, earthquake, engineering, retrofitting, risk management}, author = {Zabihi, Alireza and Hing-Ho Tsang and Emad F Gad and John Wilson} }