Trusses are triangular units that are used in construction to support the main structure. Put simply, they distribute the forces so that the structure is strong and stable enough to fulfill it's purpose.
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1.Designed for light-frame construction are often used in place of floor joists in residential structures. 2.The top chord are the horizontal flanges at the top and bottom of the truss. 3.The web is the framework between with the chords. 4.Engineered floor trusses are designed with the aid ensure accurate load capacities.
because of rigby
concrete, or the key stone (stone in middle of an arch construction)
Weather conditions can be important in determining whether it is safe to work. For example, it is not safe to work in a high crane in very stormy weather. So different kinds of weather can make some kinds of construction more difficult and some weather are good for construction work. So it is important for people in the construction industry to be aware of the weather forecasts.
Scissor trusses are used for roofs.