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technical drawings for structural metal work n.
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TECHNICAL DRAWINGS FOR STRUCTURAL METAL WORK PowerPoint Presentation
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TECHNICAL DRAWINGS FOR STRUCTURAL METAL WORK

TECHNICAL DRAWINGS FOR STRUCTURAL METAL WORK

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TECHNICAL DRAWINGS FOR STRUCTURAL METAL WORK

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  1. TECHNICAL DRAWINGS FOR STRUCTURAL METAL WORK

  2. Structural metal work (SMW) specifies complementary rule to general principles of presentation and dimensioning necessary for assembly and detail drawings . SMW consisting of plates and sheets , profile section and compound elements Lifting and transport appliances; Storage tanks and pressure vessels; Lifts , moving stairways and conveyor belts; Etc.; REFERENCE : SP46

  3. Representation of Holes, Bolts and Rivets • Representation on projection planes normal to their axes -in order to represent holes ,bolts and rivets on projection planes normal to their axes, the symbols represented in thick lines, shall be used.

  4. Representation of holes, bolts and rivets

  5. Hole Representation Representation on projection planes parallel to their axes Only horizontal line representing the symbol is thin line, all other lines are thick

  6. Bolts or rivet to fit in hole

  7. The projection lines shall be separated from the symbols of holes, bolts and rivets on projection planes parallel to their axes

  8. Dimensioning

  9. Dimensioning and lengths of arcsat the side of the developed lengths of arcs, the bending radius to which these lengths refer shall be indicated in brackets

  10. Dimensioning of bars, profiles section, plates and sheets

  11. Plates and sheets - • Plates and sheets shall be designated by their thickness followed by the overall finished dimensions of the enclosing rectangle .

  12. symbols for bars and profile sections

  13. Symbolic representations and their significance

  14. Bars and profile sections

  15. Diagrammatic representation • Structural metal work can be repeated diagrammatical lines of the intersecting elements. • In this case, the values of the distance between the reference point of the centroidal lines shall be indicated directly on the represented elements.

  16. Diagrammatic representation –structural metal work