ARCHITECTURAL DRAWING SYMBOL

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1) What are Architectural Drawing Symbols

  • The drawing of an architectural working drawing requires a knowledge of the symbols and terms commonly used in the design and construction industry.
  • All architectural working drawings must communicate in a clear and concise manner to the builders.
  • In order to simplify the details on a drawing and to speed drawing time it is necessary to use architectural symbols.
  • Many symbols are designed to approximate the appearance of an item, or the material from which it is constructed.
  • Some symbols however, may have no graphic resemblance to the material or item that they are to represent.
ARCHITECTURAL DRAWING SYMBOL

2) Symbol Conventions

  • As a general rule when a symbol is not clear or a new type of material is to be noted on a drawing, a notation should be used with the symbol.
  • This will clarify the communication to the builders.
  • It must be remembered that architectural working drawings must be read by many persons in the building trades.
  • Everything must be clear so no guess work will be involved with the design, ordering of materials or construction phases.
SYMBOL CONVENTIONS

3) Rules for Drawing Symbols

  • Always use drawing instruments. Never draw the symbols freehand on a working drawing. Use an architectural drawing template to increase the speed and clarity of the symbols Be certain that the template figures are the same scale as your drawing’s scale.
RULES FOR DRAWING SYMBOLS
  • The location of the symbol on the working drawing is closely approximated. If an exact location is required, dimensions must be added to the symbol on the drawing.
  • Symbols are not drawn to the exact size of the actual item. The general size of the architectural symbols will vary with the scale of the drawing. The symbol should be of convenient reading size.
RULES FOR DRAWING SYMBOLS ONE
  • Material symbols need not cover the full surface as shown. Repetitious drawing symbols need not be completely drawn.
  • Have references for architectural symbols available.

4) Types of Symbols

  • Door Symbols
  • Window Symbols
  • Plumbing Symbols
  • Building Material Symbols
  • Appliance and Fixture Symbol
  • Sanitation Facility Symbol
  • Topographic Symbols

i) Door Symbols

DOOR SYMBOLS

ii) Window Symbol

WINDOW SYMBOL

iii) Other Symbols

OTHER SYMBOLS

iv) Plumbing Symbols

PLUMBING SYMBOLS

v) Building Material Symbol

BUILDING MATERIAL SYMBOLS

vi) Topographic Symbols

TOPOGRAPHYIC SYMBOLS

5) Section Marks

SECTION MARKS
  • The arrow can be left open or colored in.
  • The short line segments extending from the circle represent the cutting plane line.
  • Generally a section call-out consists of two circles, one on each end of the cutting plane line.
  • It is permissible to omit one of the circles and replace it with a simple arrow.
  • These arrows are simple and can be left open or colored in.

6) Poche the building plan

  • The simplest way to highlight a structure is to crosshatch the entire building area or hatch around the perimeter of the structure.
  • The overall representation of the structure should conform to the overall style of the drawing and the other symbols used.
POCHE THE BUILDING PLAN

7) Plot Plan Symbols

PLOT PLAN SYMBOLS

8) Symbols

9) Practice Questions

  • Draw the symbolic representation of brick wall in sectional plan.
  • Construct 5 rectangles of size 4 cm. x 2 cm. each & draw the architectural graphical representation of any 5 building materials.
  • A line 1.50 m. long drawn on a scale of 1:5 shall be ……… cm. long.
  • Draw graphic symbol of-
  • WC, Door, Brick work, Window, Sofa, Concrete Column, Double bed, Double Panel Door in Plan, Exhaust Fan, Wash Basin
  • Explain advantages of Drawing Scale.
  • What is the length of 5 km. long road on scale of 1:200.
  • A line 2 m. drawn on scale of 1:10 shall be ……… cm. long.
  • Make a box of 5 x 3 cms. & inside the box show the following architectural symbols:
  • Metal Section, Wood Section, Concrete, Glass, Marble.

10) Simple measured drawings on various scales

  • Measured drawing.
  • An architectural drawing of an existing building, object, site, or detail that is accurately drawn to scale on the basis of field measurements.

1 foot = 12 inches
1 foot = 304.8 mm.
1 inch = 25.4 mm.

  • Draw plan, elevation, section, of any Table and Chair on a scale of 1:10 on Graph Paper.

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