1. Structural drawing Instructor: M.Yaqub
CHAPTER 22
Structural drawing
Instructor: M.Yaqub

2. 22.1 STRUCTURE AND MATERIAL
A Spider web is one of nature’s fine examples of a structure. The web is made of many parts connected to form a unit strong enough to support the spider.
Most of our structures also have many interconnecting parts such as beams, girders and columns, that forms a structure.
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4. The member of the structure are joined by bolt, screws or other connectors.
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8. 22.4 STRUCTURE STEEL DRAFTING
Structure steel drawings are ordinarily of two types:
Engineering design drawings made in the design engineer’s office.
Manufacturing (shop) drawings usually made in the office of steel fabricator.
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9. Design drawings are primarily shown
Overall dimension.
Location of columns, beams, angles and other shapes.
Listing the sizes of these members.
Information about the cross section and connectors.
Various necessary notes.
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10. Example of Engineering design drawings
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11. W12 x 27 means Weight 27 lb per foot and width of the member is 12 inch.
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12. Shop Drawings consist of detail drawings of all parts of the entire structure, showing exactly how the parts are to be made. Examples
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16. 22.5 STRUCTURAL STEEL SHAPES
Aluminum and magnesium shapes are also available but here only steel shapes.
Available shapes are (made by rolling mills)
Square, Flat, Round, Plate Angle, Channel, I-section, T-section, ……..
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18. Example for specification 14 inch nominal depth, 53 pound per foot weight, and over all length of 26 foot and 2-1/8 inch.
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