Design Guide for Attached Canopies

{Will provide notes here concerning the structural assessment of attaching a canopy to a building } Two basic forms: Canopy integral with the building and constructed at the same time as the building Canopy is a “tacked on after thought”, which is attached to the building after the building has been constructed. For residential buildings […]

Design Wind Speeds for South Australia

BASIC REGIONAL WIND SPEED Typical Building/Structure V[R] = 45 m/s [162 km/h] mean return period 500 years 5% risk of exceedance for 25 year design life Post Disaster Building/Structure V[R] = 48 m/s [173 km/h] mean return period 2000 years 1.25% risk of exceedance for 25 year design life These wind speeds are typically as […]

Doubly Pitched, Gable Roof Structures, enclosed buildings and canopies.

Introduction Simple doubly pitched roof. Two structural members and three joints, with two of the joints as supports. The basic connection options for joints is pinned that is having no moment restraint, or fully fixed in which case has moment restraint. If have moment restraint then joint can resist forces which tend to cause rotation […]

TechNote#006 Internal Pressure Coefficients Industrial/Commercial Buildings

{Strictly speaking this is the first technical note I wrote back in 1996, but didn’t start to present such writings as notes until much later.} AS1170.2 Loading code : “Wind loads” is primarily set up for structures that have a single state-of-nature : permanently open to the atmosphere, or permanently sealed from the atmosphere. Many […]