1.1 Introduction 1 Basic definitions Civil Engineering ---The collection of fixed artificial construction in order to improve the living conditions. Architecture---to satisfy the functions of building.Its three components are:Architectural space composition;Architectural expression aesthetics;Conformity in environment landscape. Structure ---a series of solid components to form skeleton with carrying capacity against loads. Architect---is responsible of architectural space composition; outer/inner contour expression (including skyline and decoration aesthetics )and conformity in environment landscape Structural Engineer---is responsible of planning,design, construction,maintenance and replacement of structures.1.1 Introduction 1 Basic definitions Civil Engineering ---The collection of fixed artificial construction in order to improve the living conditions . Architecture --- to satisfy the functions of building. Its three components are: Architectural space composition; Architectural expression aesthetics; Conformity in environment landscape. Structure --- a series of solid components to form skeleton with carrying capacity against loads. Architect --- is responsible of architectural space composition; outer/inner contour expression (including skyline and decoration aesthetics ) and conformity in environment landscape Structural Engineer --- is responsible of planning, design, construction, maintenance and replacement of structures