HY8:Hook Basin: Difference between revisions
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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 | * Shape of Dissipator — The user can select 'Warped Wingwalls' or 'Trapezoidal'. See illustrations below for examples. | ||
* Flare Angle (Warped Wingwalls only) | * 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) | * 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) | * 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) | * 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) | * 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) | ||
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Variables from the figure | Variables from the figure | ||
* W<sub>0</sub> | * W<sub>0</sub> — Outlet width | ||
* W<sub>1</sub> | * W<sub>1</sub> — Width at first hooks | ||
* W<sub>2</sub> | * W<sub>2</sub> — Distance between first hooks (row A) | ||
* W<sub>3</sub> | * W<sub>3</sub> — lateral spacing between A and B hook | ||
* W<sub>4</sub> | * W<sub>4</sub> — Width of hooks | ||
* W<sub>5</sub> | * W<sub>5</sub> — Width of slot in end sill | ||
* W<sub>6</sub> | * W<sub>6</sub> — approximately channel width | ||
* h<sub>4</sub> | * h<sub>4</sub> — Height of end sill | ||
* h<sub>5</sub> | * h<sub>5</sub> — Height to top of end sill | ||
* h<sub>6</sub> | * h<sub>6</sub> — Height to top of warped wingwall | ||
* y<sub>e</sub> | * y<sub>e</sub> — Equivalent depth | ||
* L<sub>1</sub> | * L<sub>1</sub> — Distance to first hooks | ||
* L<sub>2</sub> | * L<sub>2</sub> — Distance to second hooks (row B) | ||
* L<sub>B</sub> | * L<sub>B</sub> — Basin length | ||
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Variables from the figure | Variables from the figure | ||
* ß | * ß — Angle of radius | ||
* r | * r — radius | ||
* h<sub>1</sub> | * h<sub>1</sub> — height to center of radius | ||
* h<sub>2</sub> | * h<sub>2</sub> — Height to point | ||
* h<sub>3</sub> | * h<sub>3</sub> — Height to top of radius | ||
* y<sub>e</sub> | * y<sub>e</sub> — Equivalent depth | ||
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Variables from the figure | Variables from the figure | ||
* W<sub>0</sub> | * W<sub>0</sub> — Outlet width | ||
* W<sub>1</sub> | * W<sub>1</sub> — Width at first hooks | ||
* W<sub>2</sub> | * W<sub>2</sub> — Distance between first hooks (row A) | ||
* W<sub>3</sub> | * W<sub>3</sub> — lateral spacing between A and B hook | ||
* W<sub>4</sub> | * W<sub>4</sub> — Width of hooks | ||
* W<sub>5</sub> | * W<sub>5</sub> — Width of slot in end sill | ||
* W<sub>B</sub> | * W<sub>B</sub> — approximately channel width | ||
* h<sub>4</sub> | * h<sub>4</sub> — Height of end sill | ||
* h<sub>5</sub> | * h<sub>5</sub> — Height to top of end sill | ||
* h<sub>6</sub> | * h<sub>6</sub> — Height to top of warped wingwall | ||
* y<sub>e</sub> | * y<sub>e</sub> — Equivalent depth | ||
* L<sub>1</sub> | * L<sub>1</sub> — Distance to first hooks | ||
* L<sub>2</sub> | * L<sub>2</sub> — Distance to second hooks (row B) | ||
* L<sub>B</sub> | * L<sub>B</sub> — Basin length | ||
Line 78: | Line 78: | ||
Variables from the figure | Variables from the figure | ||
* ß | * ß — Angle of radius | ||
* r | * r — radius | ||
* h<sub>1</sub> | * h<sub>1</sub> — height to center of radius | ||
* h<sub>2</sub> | * h<sub>2</sub> — Height to point | ||
* h<sub>3</sub> | * h<sub>3</sub> — 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:
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