CE 303 Introduction to Construction Blueprint Lab Objectives

CE 303: Introduction to Construction Blueprint Lab

Objectives n n n Types of lines and symbols Various types of views used in drawings Topography/contour maps Profiles Cross Sections Plot Plans

Legends n n List of symbols used to identify features in the drawing. Every symbol and line type used in the drawing will have a corresponding entry in the legend.

General Line Types (Alphabet of Lines) n n n n Property Lines Border Lines Object Lines Hidden Lines Center Lines Dimension and Extension Lines Break Lines Cutting Plane Lines or Section Lines

Alphabet of Lines property line border line object line hidden line center line

Alphabet of Lines Dimension Line dimension & extension lines Extension Line 23’-6”

Alphabet of Lines break lines long short

Alphabet of Lines cutting-plane lines section identification F A 5 direction section is facing sheet number location of section B B G S 12

Blueprint View Types n n n n Plan Views Orthographic/Perspective Detail Views Contour/Topographic Views Cross-sections Profiles Plot Plans

Typical Architectural Plan View

Orthographic Views/Drawings n n n all construction drawings use orthographic drawings projected at right angles more detail can be shown start with the front view drawn to true size or scale

Perspective View/Drawings n n most realistic receding lines meet at vanishing points • one - point • two - point

Perspective Drawings Figure 6 - 15 Figure 6 - 11 two- -point one Figure 6 - 12 Figure 6 - 16

Detail Views n n n Certain features can not always be clearly shown on construction drawings. Require a large scale illustration to show all of the details. May be placed on the same sheets as the plan or elevation views or on separate sheets.

Detail Views

Topography & Contours n Contour Lines identify the ground elevation. • All points along a single contour line have the same elevation. • The interval between contours can represent any convenient distance. (i. e. 1’, 2’, 5’, etc…) n Topography is the location and elevation of features, consisting of both natural and man-made objects.

Cross Sections n n n Cross sections show the “inside” of a structure, or the elevations of the earth and structures along a station. Used heavily in earthworks and highway construction. Provided for features whose construction is not shown clearly on plan or elevation drawings.

Example of Cross Section

Profiles n n Profiles are vertical sections through a topographic map that shows the earth’s surface at any location along an alignment. Profiles often have a vertical exaggeration in order to show more detail of the surface.

Plot Plans (Site Plans) n View from above the property that illustrates location of building on the lot. • • • Lot and block number or address Bearing and length of property lines North arrow Dimensions of front, rear and side yards. Location of other accessory buildings Location of walks, drives, fences, etc… Location of Utilities, and easement setbacks Elevations at various locations Etc…