Can you identify the cause of failure of this building?

Structural failure is real, and it is the duty of structural engineers to identify all possible modes of failure in a structure, and design against them with appropriate factor of safety. When a building fails, we can identify the most probable cause of the failure by looking at the crack patterns and their location.


By looking at the image above, can you identify the cause of failure of the building? Let us know your answer in the comment section. Thank you very much.

24 COMMENTS

  1. Differential settlement due to inadequate vertical structural members (columns).
    Could also be due to inadequate reinforcement from poor design or poor construction practice.
    The picture doesn’t really give a good view of the failure.

  2. 1. I think this is as a result of differential settlement in the foundation. This could be as a result of poor load bearing capacity of the soil upon which the settling part of the building is.

  3. This is a foundation problem, the building is not settling uniformly which mean either the foundation was not well constructed or the selected foundation was not the right type of foundation to be used. A case is study is the use of raft foundation where pile foundation is to be used. Cracks at an angle usually indicate nonuniform settlement.

  4. The failure is due to settlements in the Foundation, also there is not a right wall confinement.

    An awful structural design

  5. The masonry panel on the right hand side is load bearing, and is overloaded. This has caused the brickwork panel to bow outwards which in turn caused the settlement of the structure above the the shear failure of the concrete band beam above. There is a crack to the lower band beam which is caused by the overloading, but the settlement is minimal since it is the brickwork panel which has compressed and caused the differential settlement. The brickwork panel is very large and since it sits above and below the concrete band beams it has pinned supports with no continuity – this is the initial cause of the failure.

  6. You would be mad to try and guess the cause of failure by looking at 1 photo of just part of the building. As responsible engineers we need to take the time to understand the structure and to investigate the extent and pattern of movement. From this we can develop our theory behind what may have caused the cracking and what resolution is possible.

  7. There seems to have few defects but the main defect should be the weak settlement on the foundation, which lead to the defect of the beams that have caused these failures.

  8. Need snaps of foundation… As this seems because of foundation settlement of right side wall wrt to the left side wall (differential settlement)

  9. I agree with Kurt. Simply not enough information. What is the loading, what is the foundation system, etc, etc, etc. Without that information, the only logical conclusion can be… Gravity!

  10. I thinkl, Uneven settlement should be more probable , because there is the same rupture as occured in each floor , but it needs more photo and inspection.

  11. Beam RF is not enough, the point were the two beams are joining have sheared in both levels. Probably maybe due to; lack of shear rf (design fail) ; or improper workmanship (lack of quality control).

  12. The failure is due ununiform distribution of columns to resist load uniformly. One of those column is to be at the corner to the right of the window. From my analysis from this picture i debunk the notion that it is from the foundation.

  13. Chances are, due to differential settlement maybe due to a not suitable foundation, pile instead of raft for example.
    The lack of a column at the corner of the two walls to confine them, specially the right one, seems like asking for trouble even with perfect soil and foundation conditions. Banned beams never seem to work well.

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