| Title |
Study on the Application of Top-Down Construction Method utilizing Opened Slab |
| Authors |
Rhim Hong-Chul ; Song Jee-Yun ; Seo Jung-Ho |
| Keywords |
Opened Slab ; Top-Down Method ; Perimeter Girder ; Underground Construction ; Strut as Permanent System |
| Abstract |
In recent years, new construction methods and building materials are being developed for more economic and time-saving construction especially for underground structures. In the process of top-down construction, a need for installing perimeter beams to support earth-retaining structures and beams from prefounded columns can cause delay of total construction time. A newly developed opened slab system can eliminate the perimeter beams by forming a slab floor which includes the structural function of the perimeter beams. In this paper, the details of the opened slab system have been described and the results of compressive tests on the opening areas of the slabs. The developed system is currently used in several construction sites and compared with existing methods for its advantages in this paper. |