UNIT 1 Construction Drawings

Learning Objectives

   

Explain why drawings are important in the construction industry Identify what is included in a set of drawings Describe how prints are made Handle prints with care Page 9

Print

or

Blueprint

 a

copy of a drawing

sometimes referred to as a blueprint  typically light

paper

and

black lines

 prints are referred to as

working drawings or plans

UNIT 1 page 9

Print

or

Black Line

Pictorial Drawings

UNIT 1 page 9

 help viewer visualize the structure – trees – shrubs – shading – show textures – landscaping

Pictorial Drawing

Orthographic Projection  method in which different views of a subject are shown  views used in construction drawings – top - floor plan – front - elevations – side – back

UNIT 1 page 9

Typical Drawings  plan drawings  elevations  sections  details

UNIT 1 page 9

Set of Prints identification

UNIT 1 page 10

 A-1, A-2 . . .

- architectural drawings – floor plans – plot plans – elevations – sections – details

Set of Prints identification

UNIT 1 page 10

 S-1, S-2 . . . - structural drawings – wood, concrete, steel – framing plans – sections – details

Foundation Plans

Set of Prints identification  M-1, M-2 . . . - mechanical  E-1, E-2 . . . - electrical  U-1, U-2 . . . - utility  P-1, P-2 . . . - plumbing  H-1, H-2 . . . - heating & ventilating  C-1, C-2 . . . - civil drawings show layout contours drainage

UNIT 1 page 10

site

 Floor Plans

horizontal section

taken about

42” to 48”

above the finished floor elevation Figure 1-4

UNIT 1 page 10

Elevations  show

exterior

or

interior

UNIT 1 page 14

features of a building Figure 1-5 page 15

Interior Elevation

Sections  views showing building cut apart – walls – stairs Figure 1-6 page 16

UNIT 1 page 14

Detail Drawings

UNIT 1 page 14

 unusual construction - more information is required to understand how something is built – an arch – retaining wall Figure 1-7 page 16

Schedules  list of materials – door schedule – room finish schedule – column or beam schedule » size » number of rebar

UNIT 1 page 14

Schedules

continued

UNIT 1 page 17 Figure 1-8

Schedules

continued

UNIT 1 page 17 Figure 1-9

Framing Plans  show how the structure is built – wood framing plan » floor joist – concrete framing plan » size and location of beams » floor thickness » reinforcing steel

UNIT 1 page 14

Reading Prints  visualization –

create mental image

 interpretation –

understand information

UNIT 1 page 17

Handling Prints

UNIT 1 page 17

 never write on prints unless authorized to make changes  keep clean – do not eat or drink over prints  fold or roll prints carefully  do not lay sharp objects on prints  keep out of direct sunlight  store in clean dry place

Test Your Knowledge  take 10 minutes to complete the test on page 18