ABSTRACT
STRUCTURAL ANALYSIS 3.1 STRUCTURAL DESIGN AND LIMIT STATES 3.1.1 Aims and Methods of Design The Eurocode BS EN 1990:2002 + A1:2005 Eurocode. Basis of structural design states that a structure shall be designed and executed in such a way that it will, during its intended life (design life for building structures is generally taken as 50 years and for monumental structures like bridges as 100 years), with appropriate degrees of reliability and in an economical way sustain all actions and influences likely to occur during execution and use and be durable. In particular a. A structure shall be designed to have adequate structural resistance,
serviceability, and durability. b. In the case of fire, the structural resistance shall be adequate for the required
period of time. c. A structure shall be designed and executed in such a way that it will not be
damaged by events such as explosion, impact and the consequences of human errors to an extent disproportionate to the original cause.
