'Circular curves' diaporamas de présentation

558 views • 36 slides

Horizontal

Curves. Horizontal. Required: Readings: 24-1 to 24-8, Figures: 24-1 to 24-6, 24-12, and 24-16 Examples: 24-1 and 24-2. Introduction. Use of curves, horizontal and vertical. Types of horizontal curves: Circular and spiral.

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Horizontal

Curves. Horizontal. Introduction. Use of curves, horizontal and vertical. Types of horizontal curves: Circular and spiral. We will cover circular curves only, spiral curves are given for future reference. Definitions :

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Superelevation

Superelevation. CTC 440. Objectives. Know how to determine superelevation transitions on simple circular curves and spirals Know how to use maximum relative gradients to determine superelevation length transitions. Superelevation.

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527 views • 27 slides

E4004 Surveying Computations A

E4004 Surveying Computations A. Circular Curves. Circular Curves - Chord. Let O be the centre of circular arc AC. Arc AC subtends an angle of D at O. Line AC is a chord. A. chord. C. O. Circular Curves - Sector. Area OACO is a sector. A. C. O. Circular Curves - Segment.

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E4004 Surveying Computations A

E4004 Surveying Computations A. Circular Curves. Circular Curves - Chord. Let O be the centre of circular arc AC. Arc AC subtends an angle of D at O. Line AC is a chord. A. chord. C. O. Circular Curves - Sector. Area OACO is a sector. A. C. O. Circular Curves - Segment.

289 views • 19 slides

Horizontal

Curves. Horizontal. Circular Curves Layout by Deflection Angles with a Total Station or an EDM. All stations will be positioned from PC. Compute the chord length and the deflection angle from the direction PC-PI as follows: (see fig 25-6). S a D. C a = 2R sin ? a. ? a =. (degrees).

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Horizontal Curves

Horizontal Curves. Chapter 24. Types of Circular Curves. Simple Curve. Compound Curves. Broken-Back Curves. Reverse Curves. Broken-Back Curves should be avoided if possible. It is better to replace the Curves with a larger radius circular curve.

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Geometric Design of Highways

Geometric Design of Highways. Highway Alignment is a three-dimensional problem Design & Construction would be difficult in 3-D so highway alignment is split into two 2-D problems. Components of Highway Design. Plan View. Horizontal Alignment. Vertical Alignment. Profile View.

1.24k views • 11 slides

Horizontal Curves

Horizontal Curves. Chapter 24. Types of Circular Curves. Simple Curve. Compound Curves. Broken-Back Curves. Reverse Curves. Broken-Back Curves should be avoided if possible. It is better to replace the Curves with a larger radius circular curve.

297 views • 11 slides