HY8:Hook Basin: Difference between revisions
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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 | ||
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* L<sub>2</sub> -- Distance to second hooks (row B) | * L<sub>2</sub> -- Distance to second hooks (row B) | ||
* L<sub>B</sub> -- Basin length | * L<sub>B</sub> -- Basin length | ||
[[Image:HY8fig98Hook.png]] | [[Image:HY8fig98Hook.png]] | ||
Variables from the figure | Variables from the figure | ||
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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 | ||
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* L<sub>2</sub> -- Distance to second hooks (row B) | * L<sub>2</sub> -- Distance to second hooks (row B) | ||
* L<sub>B</sub> -- Basin length | * L<sub>B</sub> -- Basin length | ||
[[Image:HY8fig911HookTrap.png]] | [[Image:HY8fig911HookTrap.png]] | ||
Variables from the figure | Variables from the figure |
Revision as of 22:03, 16 December 2011
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:
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
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:
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
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