|
Title |
Conceptual Approach to Applications of Reinforced UHPC Non-uniform Solid and Truss Beams
|
|
Authors |
조창근(Chang-Geun Cho) ; 김호연(Hoyeon Kim) ; 김형기(Hyeong-Ki Kim) |
|
DOI |
https://doi.org/10.4334/JKCI.2020.32.6.593 |
|
Keywords |
비정형 콘크리트 요소; UHPC; 가변거푸집방법; 콘크리트 트러스구조 nonuniform concrete element; UHPC; flexible formwork method; concrete truss structures |
|
Abstract |
This research is a conceptual approach to examine the possibility of using nonuniform concrete structural members in architectural and building structures by applying the ultra high-performance concrete (UHPC). From conventional reinforced concrete beams with rectangular cross-sections, made using 3-dimensional finite element simulation and the strut-tie approach, reinforced UHPC nonuniform solid and truss beams were redesigned with emphasis on structural efficiency as well as the artistic value of the architectural forms. Flexible and nonuniform formwork technologies were newly attempted to manufacture nonuniform concrete or UHPC members. Specimens of reinforced UHPC nonuniform solid and truss beams were manufactured and tested by beam loading tests; both types of solid and truss beams stably responded due to the control of multiple micro-cracks and the high compressive characteristic of UHPC during fully loading stages.
|