It is clear that the structural material is concrete, but the type of concrete construction and whether it was precast, cast-in-place, pre-stressed etc is unknown.
It is clear that the structural material is earth construction, but the type of construction is unknown. The structural material may be hidden, such as in the case of a plastered earth wall, or information about it is unavailable.
It is difficult to identify type of earthen construction when the walls are covered with plaster, like in this example of cob construction in India (People in Centre)
Older low-rise masonry buildings in Chile are of adobe construction (see the exposed portion of the wall); adobe is NOT considered to be an earthen construction (it is a masonry construction technology) (S. Brzev)
Many buildings in Peru are of adobe construction; adobe is NOT considered as earthen construction (it is a masonry construction technology) (S. Brzev)
Lateral load-resisting system unknown due to it being unclear which system is used. The system may be hidden, or information about it is unavailable.
Lateral load-resisting system for this building in Shanghai, China is unknown (C. Scawthorn)
The type of foundation system is unknown. There is insufficient information available or it is not possible to determine the foundation type from a survey.
The lateral load-resisting system material is unknown due to it being unclear which material is used. The material may be hidden, or information about it is unavailable.
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