- Location
- South wales
Interesting but why ban hammers?Just to put that in perspective , when they built the Barton Bridge over the ship canal to carry the motorway , that collapsed . The main contractors had a subby in to do the steelwork , and they paid their steel erectors on tonnage in the air . It was coming up for a holiday and they were after bonus , so they stuck a whole lot of heavy steel up without any bracing , and predictably the whole lot came down . There were "H" section girders about 5 feet across the flat and nearly the same on the web that had come down with such force that they had cold forged themselves in a perfect "mould" over the concrete coffer dams on the ground . One chap actually rode it down , and walked away , but another wasn't quite so agile / lucky , and they had to get a shovel and literally scrape him up into a sack . Just to put a finish to the tale , they got Dorman from Middlesborough to sort it , and employed a professor from Manchester Uni to supervise . He banned ALL hammers or other percussive tools - wooden forms had to be made on the ground and screwed into place . He had one man who's only job was to carry a pint of tea for him and to get another if it went cold . At the end they floated the centre section in on barges and the prof rode it in , with 4 winches and crossed steel cables attached , each cable had a white hanky tied to the exact centre and when they crossed , that was the bridge in position . There were just a couple of men to slip the pins in to attach it and they came down in absolute wonderment at the pinpoint accuracy - they said the pins didn't hardly need a sledge hammer to drive them home . They must have done a decent job - it's still there !