2010 is a significant year for ARCHIE. in 1984, Arnold Hendry and his Edinburgh team tested the arch at Bridgemill for TRL. On site, Bill was able to run continuous checks on analysis using Jacques Heyman's model and an HP41CV pocket calculator. No graphics, but the essence of ARCHIE was there. The program output was a series of 12 offsets of the thrust line from the intrados exactly like the thrust in, thrust out columns in the Archie-M output.
In 1985 (I can't remember when but probably about November) there was a meeting at New St Andrew's House in Edinburgh to show the results. Two weeks before that. Bill took delivery of an NCR Decision Mate V (approximately) PC compatible computer. It had a colour screen (7 colours and black) and came with GW Basic which had graphics functions to draw on the screen.
In the two weeks available, Bill managed to produce CIRAR, a program to analyse circular segmental arches using the full zone of thrust model that became ARCHIE.SO ARCHIE IS 25 YEARS OLD THIS YEAR
We will have to think of a way to celebrate.
Of course. Archie-M 2.4 is a long way from CIRAR, but it also reflects just under thirty years of active research and consultancy on arch bridges. Bill's first arch assessment was of Dairsie Bridge in Fife and it was done using the HP41CV and some plotter routines programmed into a Commodor Pet.