Pack Hall

Anomalies:

The following anomalies were observed during the site visit:

  • Missing part of the roof, leaving it open and exposed to all weather conditions.

  • Corrosion of roof steel elements.

  • Infiltration on the ceiling and walls.

  • Gutters in poor condition causing the water to pour inside the building on rainy days.

  • Large cracks on the walls.

  • Floor settlement.

  • Detachment of the walls.

  • Broken windows

Rehabilitation:

All anomalies listed above will be addressed as part of the rehabilitation.

Figure 4: Pack Hall – Anomalies

Proceedings:

  1. The entire roof should be replaced. A structural engineer should design a new roof structure able to withstand the winds of a cyclone.

  2. New gutters must be designed to replace all the existing gutters.

  3. The broken windows must be replaced.

  4. A qualified laboratory must be appointed to material tests on the concrete to determine the extent of the damage of the roof slabs caused by water infiltration. It is likely that the roof slab needs to be repaired and reinforced as it shows signs of corrosion of the steel reinforcement inside the slab.

  5. The laboratory must perform soil compaction tests to determine the cause of the cracks on the walls and the floor, as it is difficult to establish this only by visual inspection. The walls are severely damaged and detached from the structural elements therefore they must be demolished.

  6. After the cause of the damage to the walls have been identified it must be addressed and resolved. In case of differential settlement, it can be fixed by concrete underpinning, jet grouting or extended geopolymers.

Recommendations:

The area around the detached wall presents a risk to people therefore it is recommended that this area is isolated until it can be repaired.

It is recommended that the rehabilitation works are executed in phases to minimize the negative effect on the operations.