The largest structural failures of residential, public and industrial buildings stated the one of important humanitarian problem that is the safety protection of human life. The paper deals in particular with this problem. Considering different approaches and methods the authors of this book submit the safety analysis of building structures in course of operation. Authors are considering wide number of modern engineering problems, including survey, analysis and concept of structural failure, real bearing capacity of structures, methods and systems increasing structural safety. This book is addressed to specialists involved in safety assessment of a wide range engineering structures in building industries, research organization and universities.