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In the Superelevation Diagram, at which station the full superelevation starts to be lowered?

In the Superelevation Diagram, at which station the full superelevation starts to be lowered?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question 15 In the Superelevation Diagram, at which station the full superelevation starts to be lowered? Superelevation Diagram Grade (%) PC D = L/3 B_PC=2L/3 Superelevation Transition Crown Superelevation Runoff (L) 0% X Slope 2/3 L 1/3 L BC or EC D High Side of Rotation Full Superelevation Low Side 5% 5%- 5%-> 5% BC or 2% 2%-->> 2% -> 5%- EC 821 4 B 0% 0% A 2% 2% Axis of Rotation 2%-> 5%- 3 2%--> 5%- 2 2%--> 15%- 1 -5% <- 2% Normal Cross-slope BD: superelevation runoff length (L) AB: tangent runout length (✓) = Normal/Crown (Normal Cross-slope/Superelevation Rate)*L Left Section Left, Section Arc Length L' PC(curve starts here) PT(curve ends here) 2L/3 + 24/3 1 A BIC D L/3 E3 F G H Station Right Section Right Section Normal Cross-slope Superelevation Rate (e) F E D Ι BC = AB = 1 FG = GH = 1 13
Transcribed Image Text:Question 15 In the Superelevation Diagram, at which station the full superelevation starts to be lowered? Superelevation Diagram Grade (%) PC D = L/3 B_PC=2L/3 Superelevation Transition Crown Superelevation Runoff (L) 0% X Slope 2/3 L 1/3 L BC or EC D High Side of Rotation Full Superelevation Low Side 5% 5%- 5%-> 5% BC or 2% 2%-->> 2% -> 5%- EC 821 4 B 0% 0% A 2% 2% Axis of Rotation 2%-> 5%- 3 2%--> 5%- 2 2%--> 15%- 1 -5% <- 2% Normal Cross-slope BD: superelevation runoff length (L) AB: tangent runout length (✓) = Normal/Crown (Normal Cross-slope/Superelevation Rate)*L Left Section Left, Section Arc Length L' PC(curve starts here) PT(curve ends here) 2L/3 + 24/3 1 A BIC D L/3 E3 F G H Station Right Section Right Section Normal Cross-slope Superelevation Rate (e) F E D Ι BC = AB = 1 FG = GH = 1 13
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