> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Analyze a Beam with ASD Load Combinations (ASCE 7)

> Analyze beams to ASD load combinations per IBC 2009-2024 and ASCE 7-10 to 7-22. Enter unfactored loads for governing moment, shear and deflection.

<div className="calc-details not-prose">
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    <div className="calc-details-chips"><span className="calc-chip calc-chip--region">United States</span><span className="calc-chip calc-chip--primary">IBC 2009-2024</span><span className="calc-chip">IRC 2009-2024</span><span className="calc-chip">ASCE 7-10 - 7-22</span></div>
    <div className="calc-details-head"><span className="calc-card-icon">    <img src="https://mintcdn.com/clearcalcs/76EPoy-ubBj1vg6U/images/calculator-icons/0532976f2dbedd01af928ba217afcf79488cf0d01704705eaa2bde4b86993f75.svg?fit=max&auto=format&n=76EPoy-ubBj1vg6U&q=85&s=83628d22c6683001650bb36525c9a261" alt="" width="24" height="24" loading="lazy" data-path="images/calculator-icons/0532976f2dbedd01af928ba217afcf79488cf0d01704705eaa2bde4b86993f75.svg" /></span><p className="calc-details-name">Beam Analysis with Load Combinations (ASD)</p><a className="calc-details-run" href="https://app.calcs.com/new/sheet/analysisLoadCombosASD">Run the calc</a></div>
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<div className="calc-answer">
  Enter unfactored loads and the calculator generates all governing ASD combinations per IBC/ASCE 7, then runs FEA to produce moment, shear, and deflection demands for every combination. Identify the governing case instantly without manual load factor application.
</div>

Quickly analyze factored loads on a simple or continuous beam with the Calcs.com Beam Analysis with Load Combinations calculator. The calculator allows unlimited loads and supports, and automatically factors loads to United States standards for fast analysis of strength and serviceability limit states.

## Method & scope

| Property         | Detail                                                                                                             |
| ---------------- | ------------------------------------------------------------------------------------------------------------------ |
| Design standards | IBC 2009-2024, IRC 2009-2024, ASCE 7-10 - 7-22                                                                     |
| Regions          | United States                                                                                                      |
| Presets          | Generic Beam, Floor Joist, Floor Girder, Ceiling Joist, Hip / Valley, Rafter, Roof Girder, Roof Header, and 1 more |
| What it checks   | Load input and combination generation, Strength envelope, Serviceability demands                                   |

#### Calculation method

The ASD Beam Analysis calculator runs the FEA solver across all ASCE 7 ASD load combinations simultaneously, returning the governing envelope demand for each result type.

##### Load input and combination generation

Loads are entered by type: D (dead), L (live floor), Lr (roof live), S (snow), R (rain), W,dn (wind downward), W,up (wind uplift), Ev (seismic vertical), and Eh (seismic horizontal). Distributed loads are entered as area intensities (psf) and converted to beam-line loads using the tributary width. The calculator then automatically applies the ASD combination coefficients from ASCE 7 Section 2.4 to each load type, for example, **D + 0.75L + 0.75S** or **0.6D + 0.6W,up**, generating 16 strength combinations and additional serviceability combinations.

##### Strength envelope

For each combination the FEA solver computes bending moment, shear, and deflection at every point along the beam. The governing demands are:

* **M+ = max positive moment** across all strength combinations
* **M- = max negative moment (hogging)** across all strength combinations
* **V = max |shear|** across all strength combinations
* **Max reaction = governing bearing demand** at any support

The governing combination label is reported for each demand so the engineer can confirm which load pattern controls.

##### Serviceability demands

Three deflection demands are tracked under separate service-level combinations:

* **Short-term (δST):** deflection under live/roof live/snow/wind service loads
* **Long-term (δLT):** deflection under total load with creep amplification
* **DL+(LL or SL):** simplified envelope for total sustained plus transient load

The calculator does not apply member capacity checks, it delivers combined ASD demands for use in a separate member design calculator or for direct comparison to allowable values.

If you are choosing between design methods, see [how ASD and LRFD compare in structural design](https://calcs.com/blog/asd-vs-lrfd-calculations-in-structural-design). It covers which member design calculators expect which demands.

## How to use it

<Steps>
  <Step title="Open the calculator">
    Open it from **Run calc** in the About this calculator panel above. To start from a typical setup, choose one of the presets listed there.
  </Step>

  <Step title="Enter your inputs">
    Work through the input sections from top to bottom. Click any input label to see its reference explanation, clause, conditions and assumptions. See [Checks, References, Conditions and Assumptions](/docs/running-calculations/checking-results/checks-references-conditions-assumptions).
  </Step>

  <Step title="Review the results and export">
    Check the utilization of each governing check in the summary, then export a PDF report. See [Views and Export](/docs/running-calculations/exporting-reports/views-and-export).
  </Step>
</Steps>

<iframe src="https://fast.wistia.com/embed/medias/4mh32oauqf" title="Beam Analysis with Load Combinations (ASD)" className="w-full h-96 rounded-xl" allowFullScreen allow="autoplay; fullscreen" />

<iframe src="https://fast.wistia.net/embed/iframe/4mh32oauqf?videoFoam=true" title="Beam Analysis with Load Combinations (ASD) video walkthrough" className="w-full h-96 rounded-xl" allowFullScreen allow="autoplay; fullscreen" />

## Available presets

Each preset opens the calculator with a typical setup already entered.

| Preset                                  | Open in Calcs.com                                                                                |
| --------------------------------------- | ------------------------------------------------------------------------------------------------ |
| <span id="genericBeam" />Generic Beam   | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=genericBeam)  |
| <span id="floorJoist" />Floor Joist     | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=floorJoist)   |
| <span id="floorGirder" />Floor Girder   | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=floorGirder)  |
| <span id="ceilingJoist" />Ceiling Joist | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=ceilingJoist) |
| <span id="hipValley" />Hip / Valley     | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=hipValley)    |
| <span id="rafter" />Rafter              | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=rafter)       |
| <span id="roofGirder" />Roof Girder     | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=roofGirder)   |
| <span id="roofHeader" />Roof Header     | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=roofHeader)   |
| <span id="floorHeader" />Floor Header   | [Run with preset](https://app.calcs.com/new/sheet/analysisLoadCombosASD?presetCode=floorHeader)  |

## Common questions

<AccordionGroup>
  <Accordion title="What load combinations does the ASD Beam Analysis calculator use?">
    All ASD load combinations from IBC 2009-2024 and ASCE 7-10 through 7-22, Section 2.4. The full set includes 16 strength combinations covering dead (D), live floor (L), roof live (Lr), snow (S), rain (R), wind downward (W,dn), wind uplift (W,up), and seismic (Ev, Eh). Each load type is entered as an unfactored value; the calculator applies the combination coefficients automatically.
  </Accordion>

  <Accordion title="What are the key inputs?">
    Beam geometry and support configuration (same as the standard beam analysis calculator), plus unfactored load magnitudes by type, dead, live (floor), live (roof), snow, rain, wind, and seismic, entered as area intensities (psf) for distributed loads or forces (kip) for point loads. Center-to-center tributary width converts area loads to beam-line loads.
  </Accordion>

  <Accordion title="What results does it output?">
    Governing positive moment demand M+ and negative moment demand M- (kip·ft), governing shear V (kip), maximum bearing/reaction demand (kip), and three deflection demands: short-term (live/snow/wind), long-term, and simplified DL+(LL or SL). A full load combination table shows results for every ASD combination so you can see which combination governs each demand.
  </Accordion>

  <Accordion title="What is the difference between this calculator and the LRFD version?">
    ASD combinations (ASCE 7 Section 2.4) produce service-level or reduced-factored demands compared directly to allowable capacities, use this when your member design calculator uses ASD. LRFD combinations (Section 2.3) apply strength-level load factors producing factored demands for comparison against reduced nominal capacities, use the LRFD version when your design calculator is LRFD-based.
  </Accordion>

  <Accordion title="Does the calculator support live load reduction?">
    Yes, live load reduction (LLR) per ASCE 7-16 Cl 4.7 is an optional toggle. When enabled, floor live loads on larger tributary areas are reduced in accordance with the code-prescribed formula.
  </Accordion>

  <Accordion title="Does this calculator support load linking with column and footing calculations?">
    Yes, support reactions from the governing load combination link directly to connected column or footing calculations in the same project. Change any unfactored load magnitude and all linked calculations update automatically, no manual reaction transfer between spreadsheets.
  </Accordion>
</AccordionGroup>

## Next steps

<CardGroup cols={2}>
  <Card title="Use the Beam Analysis Calculator" icon="calculator" href="/docs/calculators/analysis/beam-analysis/analysis">
    Get bending moment, shear force and deflection along single or multi-span beams using linear-elastic FEA. Handles cantilevers, continuous spans and mixed loads.
  </Card>

  <Card title="United States Calculator Library" icon="list" href="/docs/calculators/us#analysisLoadCombosASD">
    Complete list of Calcs.com design calculators available for United States projects (AISC, ACI, NDS, ASCE 7, IBC, and related standards).
  </Card>

  <Card title="Use the Beam Analysis with Load Combinations (LRFD) Calculator" icon="calculator" href="/docs/calculators/analysis/beam-analysis/analysisLoadCombosLRFD">
    Analyze beams to LRFD load combinations per IBC 2009-2024 and ASCE 7-10 to 7-22. Enter unfactored loads for governing factored Mu and Vu.
  </Card>
</CardGroup>