Bearing CapacityWhy ground under a footing fails.Civil EngineeringA footing fails when the ground shears; allowablepressure is the failure pressure divided by a factorof safety.qu = cNc + γDNq + 0.5γBNγ · qa = qu/FUndrained clay, stripqu ≈ 5.14cu + γDThe φu = 0 case.Usual factor of safetyAround 3 on gross quCodes differ.Wider footing on sandMore capacity, more settlementSettlement wins.THE COMMON MISTAKESizing on bearing capacity aloneCheck settlement as wellOn sand and stiff clay, tolerable settlement usually sets the allowable pressurerather than shear failure. A footing can be safe and still move too much.Educational reference. No rule of thumb justifies a foundation. Designneeds ground investigation, a code and an engineer.Bearing Capacitylearnposters.com
Bearing Capacity — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Bearing Capacity poster

The rule, 3 worked examples, and the mistake everyone makes.

Educational reference. No rule of thumb justifies a foundation. Design needs ground investigation, a code and an engineer.

Questions about the Bearing Capacity poster

What’s on the Bearing Capacity poster?
The rule, 3 worked examples, and the mistake everyone makes. A footing fails when the ground shears; allowable pressure is the failure pressure di…; qu = cNc + γDNq + 0.5γBNγ · qa = qu/F; Undrained clay, strip = qu ≈ 5.14cu + γD; Usual factor of safety = Around 3 on gross qu; Wider footing on sand = More capacity, more settlement; Common mistake: Sizing on bearing capacity alone → Check settlement as well. Educational reference. No rule of thumb justifies a foundation. Design needs ground investigation, a code and an engineer.
Who is the Bearing Capacity poster for?
Bearing Capacity belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning geotechnical can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Bearing Capacity poster?
Sizing a pad or strip footing, and checking a quoted allowable pressure. A wall chart earns its place by being glanceable from where the work is happening, so Bearing Capacity belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Bearing Capacity?
Atterberg Limits, Compaction Control and Consolidation sit alongside Bearing Capacity in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Atterberg LimitsCompaction ControlConsolidation
Is the Bearing Capacity poster free to download and print?
Yes. Bearing Capacity downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Bearing Capacity poster print at?
Bearing Capacity is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Bearing Capacity loses nothing.Printing guide

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