3 ms·
Concrete isn't entirely inflexible either, and it's typically reinforced with steel. Lifts as well - the materials have some ability to flex, and the rails for
by munchbunny 11y ago
Concrete isn't entirely inflexible either, and it's typically reinforced with steel. Lifts as well - the materials have some ability to flex, and the rails for lifts have some headroom for imperfection. That's all quite intentional because we expect the lift to be in a building that will flex.
- brc 11y agoFor confirmation of this, stop a car sometime on a highway flyover bridge. These are mostly reinforced concrete. Even normal traffic makes it jump and rumble. A big truck going past makes them positively wobble. Concrete can be quite bendy.