The owners many times, to save costs, do not want to pay the structural=20 engineer for site visits to inspect the construction. These site visits=20 serve several purposes: 1: To ensure the construction is per the design=20 and materials and workmanship are as expected. 2: As a visual check of=20 the design. 3: Confirm that other conditions i.e. usage, loadings,=20 equipment, etc. are as were presented as design criteria at the=20 beginning. Typically the government (building inspectors) do not have=20 all the expertice, nor available time to do a through inspection. > > The platform was NOT loaded past its design limit - it was built > differently from its design. The plans showed that construction should > use bolts but it was built with 6" nails. Extremely adequate for many > purposes - but not when loaded with 18 people who are actively shaking > the platform at the time :-(. > =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .