End Post Anchor Angle Leaning
Balance declared horizontal end-wire overturning moment with supplied ideal anchor lever height/angle and tension limit; ignores post lean, foundation/soil capacity and transient loads, not a construction/safety recommendation.
Description
An ideal end-post anchor balances overturning moments.
An ideal end-post anchor balances overturning moments. Attachment heights and anchor inclination determine the required line tension.
Balance declared horizontal end-wire overturning moment with supplied ideal anchor lever height/angle and tension limit; ignores post lean, foundation/soil capacity and transient loads, not a construction/safety recommendation.
When to use End Post Anchor Angle Leaning
Use this tool to balance declared horizontal end-wire overturning moment with supplied ideal anchor lever height/angle and tension limit; ignores post lean, foundation/soil capacity and transient loads, not a construction/safety recommendation.
Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
How to use End Post Anchor Angle Leaning and understand its results
- Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
- Enter horizontalEndWireForceN, wireAttachmentHeightM, anchorAttachmentHeightM, anchorLineAngleAboveHorizontalDegrees, callerAnchorTensionLimitN using the field table and calculation rules, then run the tool.
- Read requiredIdealAnchorLineTensionN, anchorVerticalForceN, aboveCallerAnchorTensionLimit. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| horizontalEndWireForceN | Horizontal end wire force n | number | Required |
| wireAttachmentHeightM | Wire attachment height m | number | Required |
| anchorAttachmentHeightM | Anchor attachment height m | number | Required |
| anchorLineAngleAboveHorizontalDegrees | Anchor line angle above horizontal degrees | number | Required |
| callerAnchorTensionLimitN | Caller anchor tension limit n | number | Required |
Use positive heights and tension limit, nonnegative wire force and angle in [0,90). Return tension, vertical force and a flag strictly above the supplied limit.1
anchor tension = wire force × wire height/(anchor height × cos(angle)) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| requiredIdealAnchorLineTensionN | Required ideal anchor line tension n | number |
| anchorVerticalForceN | Anchor vertical force n | number |
| aboveCallerAnchorTensionLimit | Above caller anchor tension limit | boolean |
{
"input": {
"horizontalEndWireForceN": 100,
"wireAttachmentHeightM": 1,
"anchorAttachmentHeightM": 2,
"anchorLineAngleAboveHorizontalDegrees": 60,
"callerAnchorTensionLimitN": 150
},
"output": {
"requiredIdealAnchorLineTensionN": 99.99999999999997,
"anchorVerticalForceN": 86.60254037844383,
"aboveCallerAnchorTensionLimit": false
}
}Limitations and assumptions
Post lean, foundations, soil and transient loads are excluded; no construction approval is given.
Numbers and computed results must be finite; overflow produces an error. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Trellis Wire Tension Estimate: Infer ideal parabolic span tension from declared uniform gravity line load and measured small sag, retaining horizontal/endpoint forces; not generic stress or real catenary/temperature/anchor capacity certification. For a complementary task, use Trellis Post Spacing Load: Screen interior post tributary reactions from caller uniform transverse line load and unequal adjacent bay lengths; simplified statics excludes wire dynamics, soils/wind/design factors and does not approve trellis spacing/safety.
References
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End Post Anchor Angle Leaning — tool.io
Similar or alternative tools
- Trellis Wire Tension Estimate
Infer ideal parabolic span tension from declared uniform gravity line load and measured small sag, retaining horizontal/endpoint forces; not generic stress or real catenary/temperature/anchor capacity certification.
- Trellis Post Spacing Load
Screen interior post tributary reactions from caller uniform transverse line load and unequal adjacent bay lengths; simplified statics excludes wire dynamics, soils/wind/design factors and does not approve trellis spacing/safety.