Drafting Conventions For Structural Steel Fabrication
Individualized drawing techniques with a firm command of control and uniformity are the ultimate best friends of a drafter. In structural drawings, it is not only significant to be consistent and rigid, but it is also crucial to add stylized details that will justify the future outcome of the project. Drawing for the sake of mechanical causes and engineering strongly relies on time tested practices and principles.
Because the roots of the framework of building depends on the drafts of the engineer and the architect, they should be depicted detail by detail. Such in structural steel fabrication and ironworks, the maker of the draft should be educated in technical lingo, erection, and overall engineering to be able to translate the project well into his sketch. The principles are standard and should be thoroughly followed.
The basic lettering height and dimensioning is three over thirty two. Sketches should be numbered accordingly with the capital letter s hyphenated before the number of the sketch and should have height of one fourth or more. Scales are in standard feet and inches and must be always written. Indicate not to scale if the detail does not scale the notation. Otherwise, write scale as noted in the title block.
All drafting elements should have a title. For emphasis, underlining the title are highly practiced. One fourth to three eighths of one inch is the followed size range.
Section marks identify which sections are being cut, taken, or fabricated. It is usually drawn with a half inch diameter circle with an arrow in a 45 degree line indicating the direction of sight. The arrow must be tangent to the circle, and a number or letter in the upper half of the circle depicts the name of the section view while the figure in the lower half will serve as the sheet reference.
Structural presentations should also contain the north arrow as a reference to the components which they relate to. Drawing tools should be used as they are never made freehand. Color can be implemented to strike the viewer, but they should be simple.
One of the most important details are the title blocks. These are the much needed information, specifically the title of the project, the name of the diagram, the client and the address of the client, the company and the company address, the completion date, the scale and number, and the official stamp of the engineer. Not one detail should be left out, and the title block should be centered.
For any modifications prior to the approval of the structural sketch, revision blocks should be used. A list called bill of materials should embody the ingredients of the framework. A border, generally a half inch by line, should wrap the sheet.
The line work should strictly follow the recommended standards, with arrowheads either drawn open, closed, solid, or traditional. Local and general notes should be placed horizontally on the sheet and abbreviations are strongly discouraged. Do not forget to reference each note with a number, and spacing should make the notes distinguishable from each other.
Because the roots of the framework of building depends on the drafts of the engineer and the architect, they should be depicted detail by detail. Such in structural steel fabrication and ironworks, the maker of the draft should be educated in technical lingo, erection, and overall engineering to be able to translate the project well into his sketch. The principles are standard and should be thoroughly followed.
The basic lettering height and dimensioning is three over thirty two. Sketches should be numbered accordingly with the capital letter s hyphenated before the number of the sketch and should have height of one fourth or more. Scales are in standard feet and inches and must be always written. Indicate not to scale if the detail does not scale the notation. Otherwise, write scale as noted in the title block.
All drafting elements should have a title. For emphasis, underlining the title are highly practiced. One fourth to three eighths of one inch is the followed size range.
Section marks identify which sections are being cut, taken, or fabricated. It is usually drawn with a half inch diameter circle with an arrow in a 45 degree line indicating the direction of sight. The arrow must be tangent to the circle, and a number or letter in the upper half of the circle depicts the name of the section view while the figure in the lower half will serve as the sheet reference.
Structural presentations should also contain the north arrow as a reference to the components which they relate to. Drawing tools should be used as they are never made freehand. Color can be implemented to strike the viewer, but they should be simple.
One of the most important details are the title blocks. These are the much needed information, specifically the title of the project, the name of the diagram, the client and the address of the client, the company and the company address, the completion date, the scale and number, and the official stamp of the engineer. Not one detail should be left out, and the title block should be centered.
For any modifications prior to the approval of the structural sketch, revision blocks should be used. A list called bill of materials should embody the ingredients of the framework. A border, generally a half inch by line, should wrap the sheet.
The line work should strictly follow the recommended standards, with arrowheads either drawn open, closed, solid, or traditional. Local and general notes should be placed horizontally on the sheet and abbreviations are strongly discouraged. Do not forget to reference each note with a number, and spacing should make the notes distinguishable from each other.
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