Plumbing Seismic Bracing Load Calculator
Allocate actual assembly mass/inertial demand using independently established design acceleration and brace fractions; no inferred seismic zone/load factors, rigid-body compatibility or safety certification.
Description
Seismic force follows assembly mass times independently established design acceleration.
Seismic force follows assembly mass times independently established design acceleration. Brace shares allocate that force.1
The returned values include Caller modeled total seismic force n, Caller allocated brace forces n. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Seismic Bracing Load Calculator
Use Plumbing Seismic Bracing Load Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No seismic-zone selection, structural compatibility or safety certification is supplied.
Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
How to use Plumbing Seismic Bracing Load Calculator and understand its results
- Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
- Enter observedSupportedAssemblyMassKg, callerDesignAccelerationMetersSecondSquared, callerBraceLoadSharingFractions using the field table and calculation rules, then run the tool.
- Read callerModeledTotalSeismicForceN, callerAllocatedBraceForcesN. 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 |
|---|---|---|---|
| observedSupportedAssemblyMassKg | Observed supported assembly mass kg | list of number | Required |
| callerDesignAccelerationMetersSecondSquared | Caller design acceleration meters second squared | number | Required |
| callerBraceLoadSharingFractions | Caller brace load sharing fractions | list of number | Required |
Enter nonnegative mass observations and acceleration plus share fractions 0–1. Require shares to sum to one within 1e−8; return total force and each allocation.
totalForce=sum(mass)×acceleration; braceForce_i=share_i×totalForce Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| callerModeledTotalSeismicForceN | Caller modeled total seismic force n | number |
| callerAllocatedBraceForcesN | Caller allocated brace forces n | list of number |
{
"input": {
"observedSupportedAssemblyMassKg": [
10,
20
],
"callerDesignAccelerationMetersSecondSquared": 5,
"callerBraceLoadSharingFractions": [
0.6,
0.4
]
},
"output": {
"callerModeledTotalSeismicForceN": 150,
"callerAllocatedBraceForcesN": [
90,
60
]
}
}Limitations and assumptions
No seismic-zone selection, structural compatibility or safety certification is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Anchor Force Calculator: Pressure thrusts resolve along explicit local planar reaction directions. Opposing thrusts can cancel in the resultant. For a complementary task, use Plumbing Hanger Load Calculator: Hanger gravity load combines filled-pipe mass over a tributary length with attached mass. Each hanger needs its own assigned inventory.
References
-
Plumbing Seismic Bracing Load Calculator — tool.io
Similar or alternative tools
- Plumbing Anchor Force Calculator
Pressure thrusts resolve along explicit local planar reaction directions. Opposing thrusts can cancel in the resultant.
- Plumbing Hanger Load Calculator
Hanger gravity load combines filled-pipe mass over a tributary length with attached mass. Each hanger needs its own assigned inventory.