Structural Steel S8.1, S8.2, S8.3… Timber S9.1, S9.2, S9.3… Special Design MECHANICAL/PLUMBING DRAWINGS: M0.1, M0.2, M0.3… General Notes A large, horizontal structural member made of concrete, steel, stone, wood, or other structural material to provide support above a large openings. (Note how the material conventions are used in the makeup of the symbols for masonry, brick, and concrete walls.) endstream endobj 281 0 obj <>stream All drawing are numbered consecutively with a letter "S" preceding the number (S-1, S-2, S-3, etc. General Structural drafting principles are based on time tested practices based on standards set forth by The American Standards Institute (ANSI), The American Institute of Steel Construction (AISC), and the U.S. National CAD Standard. Steel: SDI: Steel Deck Institute: SF: Step Footing or Square Foot: STIFF: Stiffener: STR: Structural: SUP: Support: SYM: Symmetrical: THK: Thick or Thickness: THRD: Threaded: T&B: Top and Bottom: T: Top: TO: Top of: TOC: Top of Concrete: TOF: Top of Foundation: TOS: Top of Steel: TOW: Top of Wall: TYP: Typical: UNO: Unless Noted Otherwise: US: Underside: VEF: Vertical Each Face: VIF: Vertical Inside Face or … 66�N�ũn�y%��9e�%�ɉ�N�9)��y��)�y���y�yřp~piRIeA�~�0�� �vvX �М����b]ϒĜ�d�����G��%� ��� The scale of a drawing is usually presented as a ratio and is read as illustrated in the following examples. (Not to be confused with annotating strait pipe as "NPS", which should instead be annotated NPSM, NPSL, or NPSH, 1. endstream endobj startxref Also well known by the brand name Teflon. �@�´YM�ڲ���]/G�_㳣w.E�l3�������3����O&_c�=��J��R�k�HN�z8M��y���v4�P�ߙ�{ñ�����W>�;#���wm�8H, y�����e 䶗��P��J�Q|��J0��C�����G �]`cE?������Qe���Y,�v�������-�5���.5�b�ÿ�=��qdC��my8/���Dd�MDx$��.�����s�CpǛ����k�����ػX�p�+t�\n�������&�wg&= ����֍10�E����zLC�&Z*<6�0��ۗ��9�v��)�v���0 g ;�WO~y�mm� ������p4Y=(Z��4^�>�nE��Γ�������J&11�U7� DHBC�` ٨%p kilopounds per square inch, that is, thousands of, KSI (or ksi), also abbreviated KPSI or kpsi, is a common non-, threads, splines, gears (internal, female) (synonymous with, threads, splines, gears (internal, female) (see also. Flats and reversals (falling within the dimensional tolerance zone) are tolerated unless "CR" (controlled radius) is explicitly specified. Jump to:   0-9 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z • see also, United States Military Standard > Origins and evolution, International Organization for Standardization, List of geometric dimensioning and tolerancing symbols, "Engineering Materials Abbreviations and Acronyms", https://en.wikipedia.org/w/index.php?title=Engineering_drawing_abbreviations_and_symbols&oldid=991011422, Creative Commons Attribution-ShareAlike License. A dimension that establishes a distance away from the finished floor. contractor to submit shop drawings on all miscellaneous metals for review by structural engineer. endstream endobj 278 0 obj <> endobj 279 0 obj <>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 280 0 obj <>stream endstream endobj 282 0 obj <>stream "O�o��Ƶ|���D-������Px݇���A�r���)�K�Y�ݴ���M����٩b�!|����a��x~ No longer a commonly used abbreviation. When the letter X is preceded by a space, this means "by". Abbreviations for ". 1. A common need in engineering drawings is to instruct the user to do activity X in accordance with, inner diameter; identity, identification number. Seen occasionally in older drawings instead of repeating a given dimension. This can also be stated as FULL SIZE in the scale block of the drawing. Commonly used when measuring the flat surfaces of a hex drive, such as a hex nut. Diameter of a circle. Structural drawing technique refers to a style or quality of a drawing imparted by the … The dimension or note is given only for reference and thus is not to be used as a part acceptance criterion (although it may be used as an aid to production or inspection). 289 0 obj <>stream A committee that reviews some nonconforming materials which are submitted as potentially still usable/saleable (if the nonconformance does not hinder fit or function). Floor Level of an existing or proposed building or concrete pad, A type of physical feature on a part. A note that is called out in specific spots in the field of the drawing. JBL 20 = DorB Flat a)bar or a)FL 150 x 8 FL b)plate rll b)PL where (plate 900 to 3200 W or 150 = W. A little-used (thus not well recognized) abbreviation. Optionally applied to a hole dimension to signify that the hole extends through the workpiece. A list of notes that appears somewhere on the drawing, often in the upper left corner. Return to vendor, send parts back to a vendor for rework or refund because they are nonconforming. It also includes engineering orders (drawing change notices), 3D model datasets, data tables, memoranda, and any special conditions called out by the purchase order or the companies' terms-and-conditions documents. RTV sealants, a way to seal joints. This strict version of radius definition is specified in demanding applications when the form of the radius must be controlled more strictly than "just falling within the dimensional tolerance zone". For example, certification of metallurgical content and processes. 2 = d L 20SQ Square bar DIll SQ where. In other words, distances may be given from intersection points where lines intersect, regardless of edge breaks or fillets. ]&|��2�U}Ѵ�M��� For example, THRU may be stated in a hole dimension if the hole's end condition is not clear from graphical representation of the workpiece. Like most such characteristics, its presence increases the price of the part, because it raises the costs of manufacturing and quality assurance. Share and vote on ideas for future product releases. %PDF-1.6 %���� 2. CR is for critical features whose performance truly requires near-perfect geometry. A nominal dimension for the stock material, such as. Features of size (FoSs) in reality always have actual sizes and forms that differ from their theoretical size and form; the purpose of tolerancing is to define whether the difference is acceptable or not. See also, A list, usually tabular and often on the drawing (if not accompanying the drawing on a separate sheet), listing the parts needed in an assembly, including subparts, standard parts, and hardware. the S-shape is in the design of the inner surfaces of the flange. But in some cases it clarifies the definition. ABBREVIATIONS AND SYMBOLS: ... particular project and ensure that all abbreviations and symbols that are used within the drawings are listed. 610.6 610.7 exterior stud walls shall be continuously bridged at ). For example, "4 REQD" written next to a fastener means that four of those fasteners are required for the assembly. ENDS 231 Symbols F2007abn 4 Lp maximum unbraced length of a steel beam in LRFD design for full plastic flexural strength (in, ft, mm, m) Lr maximum unbraced length of a steel beam in LRFD design for inelastic lateral-torsional buckling (in, ft, mm, m) Lu maximum unbraced length of a steel beam in ASD design for reduced allowed bending stress (in, ft, mm, m)