PAST BOARD EXAM PROBLEMS
Structural Engineering & Construction
Situation 9
A footing 2m wide, 2m long, and 0.45m thick carries a square column 0.40x0.40m on its center. Given the following:
Effective Depth = 0.35 m
f’c = 28 MPa
fy = 415 MPa
Allowable stresses at ultimate loads:
For two-way shear = 1.76 MPa
For wide beam shear = 0.88 MPa
1. Based on the two-way shear, what is the allowable axial load (kN) at ultimate condition? (1828.6 kN);
2. Based on the wide beam shear, find the allowable axial load (kN) at ultimate condition. (2327 kN); and
3. The design moment at ultimate loads at the face of the column is 300 kN-m. How many 20mmϕ bars are required? (8 bars).
Credits:
1. Intro Template: https://youtu.be/D_UOajdPf-c
2. Music:
2.1 Driven to Success by Scott Holmes, Source: http://www.freemusicarchive.org
2.2 Instrumental (Guitar) by Carl Ernest Tayag, check his channel: https://www.youtube.com/channel/UC5jevz5Hgkv86NmLyGubzWA
3. Reference for the problem: Civil Engineering Reference for Licensure Examination, Volume 4, 1st Edition by DIT Gillesania (GERTC Review).
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