Highway-Transitioned Curves
In transitioned curve, the point of 0% crossfall corresponds to the start of the transition (entering the curve) and the full superelevation for the …
Showing posts from November, 2021Show all
Non-Prismatic Beam Deflection
Typical formula for beam deflection is not usable when we encounter a non-prismatic beam. The cross-sectional area of a non-prismatic beam changes al…
Highway-Compound Curves
Compound curves are horizontal curves of different radii turning in the same direction with a common tangent point. However compound curves shall be …
Highway-Broken Back Curves
Broken back curves (aka similar curves) are horizontal curves turning in the same direction joined by a short length of straight or two relatively s…
Approximate Method for Frame Subjected to Lateral Load
Forces developed in statically indeterminate frame subjected to lateral load can be calculated using approximate method. There are two approaches to …
Highway-Reverse Curves
Reverse curves are horizontal curves turning in opposite directions that adjoin with a short length of tangent between the curves. They can only be u…
Highway-Horizontal Curves
1. Transitioned Curves: Match superelevation (SE) runoff with the transition. 2. Untransitioned Curves: a. Circular curves (50% of SE at…
Truss Deflection - Virtual Work Method
How do we determine node deflection for a truss? Virtual work method is the most common solution to accomplish task. Under real load case, forces dev…