Preliminary results of numerical modelling of timberframes houses located on slopes

A questionnaire distributed to homeowners of wooden-framed houses in the Wellington region has found that minor damage to houses is to be expected after undertaking structural strengthening. In order to analyse whether the actual condition of wooden-framed houses on slopes align with anticipated damage for future earthquakes by homeowners, a follow-up structural survey was carried out to develop numerical models based on such data collection. Preliminary results indicate that 1% of inter-storey drift - defined as immediate occupancy and expectation of damage by owners - is likely to be exceeded during an Ultimate Limit State earthquake and homeowners’ expectations of damage might not be met.