Steel Roof Truss Design Ppt

Structural shapes standard steel configurations produced by steel mills such as wide flanges channels angles pipe tubes etc.

Steel roof truss design ppt. 7 in the layout of truss systems it is more preferable in terms of economy and efficiency to have the shorter members in compression and the longer members in tension. Advantages of tubular sections. Advantages of metal roof truss structures 1. Metal roof trusses can be manufactured to exact standards.

It is desired to specify the appropriate angle sections that will safely carry the anticipated loading using eurocode design code specified steel grade s 275. Design of roof purlins 6 for efficient structural performance it is recommended that the truss span to depth ratio be kept between 10 to 15. Beams columns braces plate trusses and fasteners. Options to set the roof girders on wood post or concrete wall also available.

Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. The present work includes designing roof truss components for an industrial building using conventional steel sections and tubular steel sections circular hollow section and selecting most suitable section according to its advantages and disadvantages. Economy is achieved as strength to weight ratio is more. Steel trusses come in three types.

When it comes to roof trusses you need to consider everything from design to cost to the pros of using trusses instead of stick framing a roof. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. A sl series truss is a single slope truss that includes steel girders and steel columns with clear span widths from 10 through 80 with available eave heights of 8 through 20. Roof truss strength derives from the triangle shapes that comprise the truss itself.

Gable lean to and header. They are much more lightweight and this allows for larger shipments. Gable trusses are in stocked in a 4 12 slope x 20 24 30 and 40 width and special order up to 50 wide 60 for tubing trusses. Structural steel the structural elements that make up the frame that are essential to supporting the design loads e g.

You can use the links below to navigate throughout the guide. Triangles are naturally rigid geometric shapes that resist distortion. The truss is made up of howe truss configuration spaced at 3m intervals. Some of the steel roof trusses generally used are king post queen post fink howe pratt warren fan and north light.

It does not include for example. Even though they are considered to be more expensive metal roof trusses can span further than wood.