Scaffolding has been erected around the tower.

周围已竖起了脚手。

There is no heat for the subfreezing temperatures, and the bunks are planks of plywood attached to metal scaffolding.

他们睡在木板搭成高低铺上，虽然北京冬夜温已经在零度以下，但他们工棚当然不会有暖。