| Title |
Mock-up Test of CFT(Concrete Filled Steel Tube) with Ultra High Strength Concrete for Field Application |
| Authors |
Jung. Keun-Ho ; Jung. Sang-Jin ; Choi. Mun-Sik |
| Keywords |
Concrete Filled steel Tube(CFT) ; High Strength Concrete ; Diaphragm ; Mock-up test |
| Abstract |
CFT combines the benefits of steel structure with that of concrete as a advantageous structure of being able to exhibit the maximum performance with being able possible to make high-rise building and long-span space and use widely in spite of small-section of column.??In case of joint with diaphragm,there is probability to occur a void in bottom of the diaphragm after placing concrete.Moreover,it is so hard to guarantee the quality of CFT and facilitate placing of concrete that the ways are needed to control the proper degree of strength suitable for filled-concrete in steel tubes.Due to this actual circumstances,the fact is that it is difficult for CFT to apply in the workplace because of lack of confidence in quality control of owner and engineer of high-strength and high flow concrete and lack of experience in a method placing in sites.In this study, the research is focused on finding the data on methods of strength concrete for CFT while examining compactability and workability of concrete by the mock-up test used over 800㎏f/㎠ high strength concrete.Through such like this research,it is aimed at offering required data for field application of CFT in building industry nationwide |