Extracted text: We are putting up a very tall building, which weighs 200,000 tonnes. This weight is to be carried on 500 steel I-beams. We are using normal structural steel, with a yield strength of 300 N/mm?. Each beam has a cross-sectional area of 10,000 mm². Ignoring the possibility of other failure mechanisms, will these 500 steel columns carry the building's weight? 1 tonne = 10,000N