| Title |
Analysis of Constructability and Economic Efficiency of the iTECH System |
| Authors |
Baek Tae-Ryong ; Jang Myung-Houn ; Ju Young-Kyu |
| Keywords |
iTECH ; Composite beam ; Steel structure ; High-rise building construction |
| Abstract |
Steel structure has several advantages such as flexibility in space layout, structural stability, durability, and ease of fabrication. However, steel structure has higher story height and smaller gross floor area than reinforced concrete structures, since the slabs are constructed over the steel beams. The reinforced concrete structure that uses wide beams has shorter story height, but requires complex construction processes and long construction duration. This research presents the iTECH(Innovative, Technical, Economical, and Convenient Hybrid) system that has the advantages of both steel and reinforced concrete structures. The system is a composite beam that consists of asymmetric steels with web opening and in-situ concrete. The system was applied to the selected 2-story building to verify its practical use. The building was constructed with short story height, small material quantity, short construction duration, and fine workability and structural stability. Therefore, it is concluded that the proposed system is beneficial in many aspects, and can be readily applied to several types of buildings such as high-rise residential building, office buildings, and long span structures. |