The next most common type of roof supporting structures are truss elements, called roof trusses. But when the area and the span also to be covered become too large, beams also become too heavy and uneconomical as structural members. Beams are some of the more common structural elements to support roofs. However, these materials are not structurally strong enough to support themselves and need to be supported by steel or concrete structures. The material used for roofing are called roof covering, which may range from tiles, corrugated steel and asbestos sheets to light FRP covers and tarpaulins. 189 UNIT 8 ROOF TRUSSES Structure 8.1 Introduction Objectives 8.2 Roof Truss : Components and Definitions 8.3 Loads Acting on Roof Trusses 8.3.1 Dead Loads 8.3.2 Live Loads 8.3.3 Snow Loads 8.3.4 Loads Due to Rain 8.3.5 Wind Loads 8.3.6 Earthquake Loads 8.4 Design of Purlins 8.5 Design of Roof Trusses 8.5.1 Selection of the Truss Type 8.5.2 Analysis of Trusses 8.5.3 Design of Truss Members 8.5.4 Design of Joints 8.5.5 Design of Root Truss Bearings 8.6 Summary 8.7 Answers to SAQs 8.1 INTRODUCTION For covering large industrial or residential areas, to protect them against rain, sun, dust or other natural vagaries, we require roofing.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |