[Q&A]: Team Bricks-n-Mortar provides Answers to Queries on Wiki.Answers | December 2009 (Series#1)

B-n-M's Q&A | December 2009 | (Series#1)

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Q: How do you hang a heavy mantle without cleats or corbels?  
A: First things first --- Any member that is to be hung (erected) must either be supported at end and/or in-between at least one place for stability and fixing purposes. 

The only other way to hang a heavy mantle, unsupported otherwise elsewhere than at the ends, is to fix it with the help of suitable anchor fasteners available for several reliable makes like Hilti, Fischer, etc. The structure to be hung must be fixed with suitably designed end plates in structural steel, which then can be anchored on to the receiving surfaces (ends).  

Q: What materials do you need to make a truss?  
A: To start with, let us first explain in very simple terms to all our readers as what a 'TRUSS' is.  

A truss is a structural member that is fabricated by means of joining various suitably designed members of desired parameters like length, section, material, weight, end connection system, etc. into a grid type shape. A truss usually takes advantage of the strength of triangular shaped units that are joined together by different means.  

The most common building materials that are used for fabricating trusses are structural steel sections, seasoned wood, hollow or solid pipes, bamboo, etc. The selection of the material essentially depend upon the load factor, type of use, material availability, etc. In some of the cases, even a combination of more than one material can be used.  

The most common type of trusses used in construction purposes are:

• King post truss
• Queen post truss
• Bowstring truss
• Attic truss
• Pratt truss
• Lenticular truss
• Gambrel truss
• Hip truss
• Fink truss
• Flat truss
• Howe truss
• Inverted truss

The most common uses / places where trusses are erected are:

• Roof supports
• Bridges
• Sheds
• As permanent beam supports (as against formwork)

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For more such informative posts and trivia, keep visiting us at: BRICKS-n-MORTAR.com  

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