旧楼外加建井道安装的电梯

旧楼外加建井道安装电梯是复杂的改造工程．设计和施工难度较大．加装电梯的位置和井道的结构有多种方案可供选择。本文列表说明了公共建筑和多层住宅建筑加装电梯的多种方案．列举大量工程实例并附照片加以说明．可供同类工程参考借鉴。

ELEVATORS INSTALLED IN THE NEW SHAFTS OUTSIDE OLD BUILDINGS

It is a complex renovation project to install elevators in new shaft that erected outside old buildings. The design and construction works are very difficult. There are a plenty of solutions about shaft location and structure to choose from. This paper describes a variety of solutions to install elevators outside old public buildings and multi-storey residential buildings, illustrates many projects with photos, and these examples can be used for reference.