DESIGN OF RETRACTABLE ROOF STRUCTURES--OLYMPIC STADIUMS AND GYMNASIUMS

Retractable roof is a type of structure, which or a part of which canopen or close within a short time. In this paper we discuss several typical structures.The movement of retractable roof makes the design of retractable roof structuresvery complex. Compared with the conventional buildings, the design ofretractable roof structures is composed of three parts: architecture,structure and mechanism. They are mutually related.