1 Elevator cables
Assume
Elongation under load
2 Suspended building
3 Differential strain
Assume
4 Shorten hangers under DL to reduce differential strain, or prestress strands to reduce ∆L by half
Note: Differential strain is additive since both strains are downwards
To limit differential strain, suspended buildings have <= 10 stories / stack
Assume
3 Differential strain
Assume
4 Shorten hangers under DL to reduce differential strain, or prestress strands to reduce ∆L by half
Note: Differential strain is additive since both strains are downwards
To limit differential strain, suspended buildings have <= 10 stories / stack
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STRUCTURES