ABSTRACT
In the middle of the 19th century, the time of industrial revolution, mass production and chemical discoveries provided steel and Portland cement as competitively priced building materials.
Steel is an elastic homogeneous material, which is capable of resisting both tension and compression and, therefore, ideal for slender bridges and large span structures. The Eiffel Tower may be regarded as a symbol of these times. The reliability of the metal framed structures, such as the Eiffel Tower, could be checked with simple calculations, and it may be said that these structures were designed to fit the method of analysis.
