Chapter 7. §7.1 Introduction DefinitionClassificationCharacteristicsApplicationSignificance.

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Presentation transcript:

Chapter 7

§7.1 Introduction DefinitionClassificationCharacteristicsApplicationSignificance

Building steels are those for engineering those for engineering building buildingIncluding Profiled steels Profiled steels Steel plates Steel plates Steel wires Steel wires Steel bars Steel bars Definition steel bars profiled steels steel plates steel wires

Classification Metal Material Colored Metal Blackness Metal Cu, Al and alloy Steel Construction Bars of Steel Pig Iron (c>2.06%) Classification by chemical component: Blackness Metal and Colored Metal :

Advantages High strength-weight ratio Better plasticity and toughness Standing of impulsions and vibration load Flexible processing Characteristics Disadvantages Easily to be eroded High cost of maintenances

Building steels are used in: Building steels are used in:  Long-span construction  Multi-layer and high-layers  The heavy-factories bearing the dynamic load Application Steel Bridge

 Building steels are the common material in the buildings.  There are a variety of steels differing in their properties.  We’d better have acquaintance of the process, constituents, properties and application to make good use of them.  This chapter mainly deals with the technical properties and criteria of the steel, and its selection. Significance

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