ABSTRACT
Chapter 7 considers several engineering concepts that are important for understanding the art and science of engineering, and the contractual obligations of designers and design and construct contractors. The application of design Standards, and the concepts of reliability, limit state design and robustness are important aspects of structural design. The chapter explains the difference between design life and service life, an issue that may be important in the context of design and construct contracts. The “default” legal obligation to prepare a design with due skill and care is contrasted with the common contractual obligation for a constructed facility to be fit for purpose. These issues are illustrated by reference to recent case law.
