Structural Drawing Chapter 19 Objectives Create a structural

Structural Drawing Chapter 19

Objectives • • • Create a structural truss or floor plan drawing Label and specify the size and shape of steel structural members Identify, draw, and label various structural steel shapes Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 2 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Objectives (cont. ) • • • Identify, draw, and label high-strength bolts used in structural joints Identify welding symbols used in steel fabrication of structural components Identify and read concrete and brick construction details Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 3 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Structural Drawings • Structural drawings include: • • Foundation plans Wall sections and framing details Structural steel framing and details Beam and column drawings and details Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 4 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Wood Construction • • Many different types of wood are used as structural timber The surface of a wood product is finished by milling or planing • • Due to wood loss in surfacing, nominal size is larger than dressed thickness Symbols are used to indicate requirements for finished surfaces on wood Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 5 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Wood Joints Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Connector Designs Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Structural Steel • Structural steel drawings are ordinarily one of two types: • • Engineering design drawings Manufacturing (shop) drawings Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 8 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Structural Steel • Engineering design drawings show the overall dimensions of the structure including: • • • Locations of columns, beams, angles and other shapes Sizes of structural members Detail in the form of cross sections, special connections required, and notes Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 9 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Structural Steel Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Structural Steel • • Shop drawings consist of detail drawings of all parts of the entire structure showing exactly how the parts are to be made These drawings show all dimensions necessary for fabrication, usually calculated to the nearest 1/16” Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 11 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Piece Marks • • A system is used to mark each piece that is separately handled This mark is called a piece mark and should be shown wherever the member appears on the drawings Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 12 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Piece Marks Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Structural Steel Shapes • • Structural steel is available in many standard shapes Most CAD programs have structural shapes symbol libraries available Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 14 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Structural Steel Shapes Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak,

Erection Plans • Erection plans made by the steel fabricator are assembly drawings for the steel structure Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 16 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Erection Plans Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart

Connections • • Main members are joined together in the field to build a structure and most joints are welded connections to the main members Riveting is seldom used as a connection but you may find reference to riveted joints in original plans Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 18 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Connections • AISC recommends certain standard connections for attaching beams • You should know the strength of the various connections and use them only when they are sufficient Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 19 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Welding • Welding is a common method for connecting steel members of buildings and bridges • The fillet weld is the most common in structural steel fabrication Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 20 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Welded Beam Detail Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak,

High-Strength Bolting for Structural Joints • Two common types of high-strength steel bolts are ASTM A 325 and A 490 Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 22 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Accuracy in Dimensions • • Incorrect dimensions on drawings will result in serious errors and misfits when members are assembled in the field Consider the effect of tolerance stacking on the fit of steel members Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 23 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Concrete Construction • • • Concrete is made by mixing sand, gravel, or other aggregates with Portland cement and water Reinforced concrete has embedded steel reinforcing bars In prestressed concrete, the steel is pretensioned before the superimposed load is applied Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 24 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Reinforced Concrete Drawings Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak,

Structural Clay Products • • Brick and tile are some of the best known forms of building construction Traditionally they are built into masonry forms and units are placed one at a time in a soft mortar Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 26 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Stone Construction • Natural stone is also used in masonry construction, most commonly for ornamental facing Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 27 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.

Laying and Bonding Brick, Tile and Stone Technical Drawing 13 th Edition Giesecke, Mitchell, Spencer, Hill Dygdon, Novak, Lockhart 28 © 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.