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RC Beam Calculation Prompts (Templates)
Practical copy/paste prompts for designing and checking an RC beam. Pick one template, replace [ ] with your project data, and run it.
How to use
- Choose a prompt below.
- Copy it (use the “Copy Prompt” button).
- Replace the bracket values [like this] with your beam data.
- Paste into ChatGPT (or your tool) and run.
1) Quick RC Beam Design Prompt (most useful)
Best for full beam design: loads → Mu/Vu → flexure → shear → serviceability → detailing notes.
Act as a structural engineer. Design and calculate an RC beam for a building and show step-by-step.
Use standard limit-state design and clearly state assumptions and load combinations.
Inputs:
- Beam type: [simply supported / continuous / cantilever]
- Span L = [m]
- Beam size b×h = [mm] and cover = [mm]
- Concrete grade f’c = [MPa]
- Steel grade fy = [MPa]
- Support condition: [beam-column monolithic / pinned / etc.]
- Slab tributary width = [m], slab thickness = [mm]
- Wall on beam? [yes/no], wall thickness = [mm], height = [m], unit weight = [kN/m³]
- Live load = [kN/m²], finishes = [kN/m²]
- Beam self-weight density = [kN/m³]
Required outputs:
1) Calculate dead load + live load (line load kN/m)
2) Find Mu and Vu (factored)
3) Flexural design (As required, bar selection)
4) Shear design (stirrups spacing)
5) Deflection/serviceability quick check
6) Provide a clean rebar detailing note (top/bottom bars, stirrup size & spacing, anchorage, lap rules).2) Beam Load Calculation Only (fast)
Use this when you only need kN/m loads and factored wu.
Calculate the loads on an RC beam (kN/m). Include self-weight, slab load using tributary width, finishes, live load, and wall load if any.
Then give factored line load w_u using common load combos.
Inputs: [paste beam size, span, slab width, slab thickness, finishes, live load, wall data].3) Flexural Steel Only (As) Prompt
Use when you already have Mu and want bars arrangement.
Given Mu and beam section b×h, f’c, fy, and cover, design the flexural reinforcement (As) and propose practical rebar arrangement (e.g., 2DB16 + 1DB16).
Also check minimum steel and spacing.
Inputs:
- Mu = [kN·m]
- b×h = [mm]
- f’c = [MPa]
- fy = [MPa]
- cover = [mm]
- (effective depth estimate rules allowed)4) Shear & Stirrups Only Prompt
Use when you already have Vu and want a stirrup schedule.
Given Vu, beam size, f’c, fy, and stirrup bar size options, design stirrup spacing along the span (near supports and midspan).
Provide final schedule like: “R8-@100 (0–2d), R8-@150 (2d–4d), R8-@200 (rest)” if applicable.
Inputs:
- Vu = [kN]
- b×h = [mm]
- f’c = [MPa]
- fy = [MPa]
- stirrup bar = [R8/R10]5) RC Beam Detailing Notes Prompt (site-friendly)
Use to generate drawing notes your site team can follow.
Create construction drawing notes for RC beam reinforcement detailing: cover, bar bending, anchorage length, lap splices locations, stirrup hooks, spacing rules near supports, and how to detail top bars for negative moment in continuous beams.
Keep it practical for site work.
Inputs:
- beam type
- seismic level (if any)
- bar sizes commonly available in Cambodia: [DB12/DB16/DB20]
- stirrup: [R8/R10]6) Fill & Run (calculate your beam right now)
Fill your numbers below, then click “Copy Filled Template” and paste it to run.
Preview (filled prompt)
(Fill the fields above to generate a preview.)
Tags:
RC_Prompts