One of the major reasons a project may require structural engineering consulting or review is to obtain design approval prior to manufacture or construction. The most innovative and imaginative project design is not very useful if it cannot be made to meet
The basic objective is to produce a structure capable of resisting all applied loads without failure and excessive deformations during its anticipated life. The very first output of any engineering design process is a description of what is to be manufactured or built, what materials are to be used, what construction techniques are to be employed, and an account of all necessary specifications as well as dimensions (which are usually presented in the form of drawings). The second output is a rational justification or explanation of the design proposal developed based on either full-scale tests, experiments on small physical models, or the mathematical solution of detailed analytical models representing the behavior of real structures.
The process of structural design has passed through a long and still continuous phase of improvements, modifications, and breakthroughs in its various research areas. The structural analysis and design philosophies for new and existing buildings have a fascinating history. Perhaps, the first ever achievement in the history of structural design was the “confidence” by virtue of which early builders were able to convince themselves that the resulting structure could, indeed, be built and perform the intended function for the entirety of its intended life.