Difference between revisions of "HY8:Hook Basin"

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The input variables required for this calculation is the following:
The input variables required for this calculation is the following:


* Shape of Dissipator -- The user can select 'Warped Wingwalls' or 'Trapezoidal'.  See illustrations below for examples.
* Shape of Dissipator — The user can select 'Warped Wingwalls' or 'Trapezoidal'.  See illustrations below for examples.
* Flare Angle (Warped Wingwalls only)-- Flare angle per side of the basin.
* Flare Angle (Warped Wingwalls only) — Flare angle per side of the basin.
* Ratio of Length to A-hooks over Total Basin Length (Warped Wingwalls only)-- Distance from culvert exit to first row of hooks (A-HOOKS) divided by the total length of the basin.
* Ratio of Length to A-hooks over Total Basin Length (Warped Wingwalls only) — Distance from culvert exit to first row of hooks (A-HOOKS) divided by the total length of the basin.
* Ratio of Width to A-hooks over Total Basin Length (Warped Wingwalls only)-- Distance between hooks in the first row divided by the basin width at the first row.
* Ratio of Width to A-hooks over Total Basin Length (Warped Wingwalls only) — Distance between hooks in the first row divided by the basin width at the first row.
* Ratio of Length to B-Hooks over Total Basin Length (Warped Wingwalls only)-- Distance from culvert exit to second row of hooks (B-HOOKS) divided by the total length of the basin.
* Ratio of Length to B-Hooks over Total Basin Length (Warped Wingwalls only) — Distance from culvert exit to second row of hooks (B-HOOKS) divided by the total length of the basin.
* Width for the Downstream End of the Basin (Warped Wingwalls only)
* Width for the Downstream End of the Basin (Warped Wingwalls only)
* Basin Side Slope (Trapezoidal shape only) -- The user can select either '1.5 : 1' or '2 : 1'.   
* Basin Side Slope (Trapezoidal shape only) — The user can select either '1.5 : 1' or '2 : 1'.   
* Basin Bottom Width (Trapezoidal shape only)
* Basin Bottom Width (Trapezoidal shape only)




The next two figures show a hook basin with warped wingwalls:
The next two figures show a hook basin with warped wingwalls:


[[Image:HY8fig98.png]]
[[Image:HY8fig98.png]]


Variables from the figure               
Variables from the figure               


* W<sub>0</sub> -- Outlet width
* W<sub>0</sub> &mdash; Outlet width
* W<sub>1</sub> -- Width at first hooks
* W<sub>1</sub> &mdash; Width at first hooks
* W<sub>2</sub> -- Distance between first hooks (row A)
* W<sub>2</sub> &mdash; Distance between first hooks (row A)
* W<sub>3</sub> -- lateral spacing between A and B hook
* W<sub>3</sub> &mdash; lateral spacing between A and B hook
* W<sub>4</sub> -- Width of hooks
* W<sub>4</sub> &mdash; Width of hooks
* W<sub>5</sub> -- Width of slot in end sill
* W<sub>5</sub> &mdash; Width of slot in end sill
* W<sub>6</sub> -- approximately channel width
* W<sub>6</sub> &mdash; approximately channel width
* h<sub>4</sub> -- Height of end sill
* h<sub>4</sub> &mdash; Height of end sill
* h<sub>5</sub> -- Height to top of end sill
* h<sub>5</sub> &mdash; Height to top of end sill
* h<sub>6</sub> -- Height to top of warped wingwall
* h<sub>6</sub> &mdash; Height to top of warped wingwall
* y<sub>e</sub> -- Equivalent depth
* y<sub>e</sub> &mdash; Equivalent depth
* L<sub>1</sub> -- Distance to first hooks
* L<sub>1</sub> &mdash; Distance to first hooks
* L<sub>2</sub> -- Distance to second hooks (row B)
* L<sub>2</sub> &mdash; Distance to second hooks (row B)
* L<sub>B</sub> -- Basin length
* L<sub>B</sub> &mdash; Basin length
 


[[Image:HY8fig98Hook.png]]
[[Image:HY8fig98Hook.png]]


Variables from the figure               
Variables from the figure               


* ß -- Angle of radius
* ß &mdash; Angle of radius
* r -- radius
* r &mdash; radius
* h<sub>1</sub> -- height to center of radius
* h<sub>1</sub> &mdash; height to center of radius
* h<sub>2</sub> -- Height to point
* h<sub>2</sub> &mdash; Height to point
* h<sub>3</sub> -- Height to top of radius
* h<sub>3</sub> &mdash; Height to top of radius
* y<sub>e</sub> -- Equivalent depth
* y<sub>e</sub> &mdash; Equivalent depth




The next two figures show a hook basin with a uniform uniform trapezoidal channel:
The next two figures show a hook basin with a uniform uniform trapezoidal channel:


[[Image:HY8fig912HookTrapHor.png]]
[[Image:HY8fig912HookTrapHor.png]]


Variables from the figure               
Variables from the figure               


* W<sub>0</sub> -- Outlet width
* W<sub>0</sub> &mdash; Outlet width
* W<sub>1</sub> -- Width at first hooks
* W<sub>1</sub> &mdash; Width at first hooks
* W<sub>2</sub> -- Distance between first hooks (row A)
* W<sub>2</sub> &mdash; Distance between first hooks (row A)
* W<sub>3</sub> -- lateral spacing between A and B hook
* W<sub>3</sub> &mdash; lateral spacing between A and B hook
* W<sub>4</sub> -- Width of hooks
* W<sub>4</sub> &mdash; Width of hooks
* W<sub>5</sub> -- Width of slot in end sill
* W<sub>5</sub> &mdash; Width of slot in end sill
* W<sub>B</sub> -- approximately channel width
* W<sub>B</sub> &mdash; approximately channel width
* h<sub>4</sub> -- Height of end sill
* h<sub>4</sub> &mdash; Height of end sill
* h<sub>5</sub> -- Height to top of end sill
* h<sub>5</sub> &mdash; Height to top of end sill
* h<sub>6</sub> -- Height to top of warped wingwall
* h<sub>6</sub> &mdash; Height to top of warped wingwall
* y<sub>e</sub> -- Equivalent depth
* y<sub>e</sub> &mdash; Equivalent depth
* L<sub>1</sub> -- Distance to first hooks
* L<sub>1</sub> &mdash; Distance to first hooks
* L<sub>2</sub> -- Distance to second hooks (row B)
* L<sub>2</sub> &mdash; Distance to second hooks (row B)
* L<sub>B</sub> -- Basin length
* L<sub>B</sub> &mdash; Basin length
 


[[Image:HY8fig911HookTrap.png]]
[[Image:HY8fig911HookTrap.png]]


Variables from the figure               
Variables from the figure               


* ß -- Angle of radius
* ß &mdash; Angle of radius
* r -- radius
* r &mdash; radius
* h<sub>1</sub> -- height to center of radius
* h<sub>1</sub> &mdash; height to center of radius
* h<sub>2</sub> -- Height to point
* h<sub>2</sub> &mdash; Height to point
* h<sub>3</sub> -- Height to top of radius
* h<sub>3</sub> &mdash; Height to top of radius




{{HY8Main}}
{{HY8Main}}
[[Category:Energy Dissipators|H]]

Latest revision as of 14:46, 11 October 2016

Hook Basin

The input variables required for this calculation is the following:

  • Shape of Dissipator — The user can select 'Warped Wingwalls' or 'Trapezoidal'. See illustrations below for examples.
  • Flare Angle (Warped Wingwalls only) — Flare angle per side of the basin.
  • Ratio of Length to A-hooks over Total Basin Length (Warped Wingwalls only) — Distance from culvert exit to first row of hooks (A-HOOKS) divided by the total length of the basin.
  • Ratio of Width to A-hooks over Total Basin Length (Warped Wingwalls only) — Distance between hooks in the first row divided by the basin width at the first row.
  • Ratio of Length to B-Hooks over Total Basin Length (Warped Wingwalls only) — Distance from culvert exit to second row of hooks (B-HOOKS) divided by the total length of the basin.
  • Width for the Downstream End of the Basin (Warped Wingwalls only)
  • Basin Side Slope (Trapezoidal shape only) — The user can select either '1.5 : 1' or '2 : 1'.
  • Basin Bottom Width (Trapezoidal shape only)


The next two figures show a hook basin with warped wingwalls:


HY8fig98.png


Variables from the figure

  • W0 — Outlet width
  • W1 — Width at first hooks
  • W2 — Distance between first hooks (row A)
  • W3 — lateral spacing between A and B hook
  • W4 — Width of hooks
  • W5 — Width of slot in end sill
  • W6 — approximately channel width
  • h4 — Height of end sill
  • h5 — Height to top of end sill
  • h6 — Height to top of warped wingwall
  • ye — Equivalent depth
  • L1 — Distance to first hooks
  • L2 — Distance to second hooks (row B)
  • LB — Basin length


HY8fig98Hook.png


Variables from the figure

  • ß — Angle of radius
  • r — radius
  • h1 — height to center of radius
  • h2 — Height to point
  • h3 — Height to top of radius
  • ye — Equivalent depth


The next two figures show a hook basin with a uniform uniform trapezoidal channel:


HY8fig912HookTrapHor.png


Variables from the figure

  • W0 — Outlet width
  • W1 — Width at first hooks
  • W2 — Distance between first hooks (row A)
  • W3 — lateral spacing between A and B hook
  • W4 — Width of hooks
  • W5 — Width of slot in end sill
  • WB — approximately channel width
  • h4 — Height of end sill
  • h5 — Height to top of end sill
  • h6 — Height to top of warped wingwall
  • ye — Equivalent depth
  • L1 — Distance to first hooks
  • L2 — Distance to second hooks (row B)
  • LB — Basin length


HY8fig911HookTrap.png


Variables from the figure

  • ß — Angle of radius
  • r — radius
  • h1 — height to center of radius
  • h2 — Height to point
  • h3 — Height to top of radius