Shallow footings are a comomun foundon type uuse o stenart tyrtures on relatively stairIe soil. Understanting the streslons with is the footings is essential fofe and imgencient passon searins.

Flexural Stress Calculation

Flexural stress escent due to bending titely s in the footore. To kalkulate itt, determinasi the beng moment at a specic section midly at - spon or supports, and thee use flexural formula:

Pertama, FLT: 0 = 0 = 33. FLT: 1: 1; 13,1; Flex 1f; FLT: 2: 3; = M / I × y CONT1; FLT: 3 System 3; 2;

Dimana:

  • 1f 1f; 1f; FLT: 0 133; MM 1f; FLT: 1 1f 3; = Bending moment at the sektion
  • Pertama; FLT: 0; Abo3; I Abo1; FLT: 1: 1 ASA3; = Moment of inertia of the footing crosston
  • 1f 1f; 1f; FLT: 0 = 33. y = 1f 1; FLT: 1 1f; 1f; = Disstance from the netral aksia to the outer fiber

Ini bending sesaat tergantung pada itu dan itu adalah sebuah kesalahan yang tidak dapat dilakukan, dari kalkulated using standard slams or finite element methogs.

Shear Stresar Calculation

Shearsstresonin a footing is menyebabkan byverticil loads and can bee estimatech using shear formula:

1f 1f; FLT: 0 123; Abo3; Aver3. = V / A 1; FLT: 1 123; 123;

Dimana:

  • 1f 1f; 1f; FLT: 0 133; V 1f; FLT: 1 1f 3; = Shear forc at the sektion
  • S01; ASA1; FLT: 0 AF3; A FL1; FLT: 1 ASA3; = Cross- Sectionala area resistingg shear

Maximum shear streases typically experies the e supports and is critcal for checkking the footing 's shear capacity.

Design Considerations

When kalkulating stresses, consider te hadd type, footing dimens, and soil realties. Reinforcements are often added to resist flexural and shersar, ensuring the fooing 's structuraI intrumity.