중공PC기둥-슬래브 접합부 뚫림전단강도

Recently, Construction Business, is changing very quickly, exceedingly needs to slim down the expensive by material costs and term of works. Because of that reason, new technology of construction studies are very popular. On the contrary, study of form work is shunned. The term of formwork takes 25% of the term of works and costs 15% to 20% of the cost of construction. Hereupon, the purpose of this study is to investigate the Axial Strength of Centrifugall Formed Shell PC Columns that can reduce the term of formwork, the costs of material, the difficulty of throwing away the waste. Shell PC Column is loaded stirrups and manufactured at factory, so it has good points like construction's quality control and part's precision. Flat plate slab makes advantages of shortening height of stories, convenience of construction, economical efficiency. However, slab is thin and don't have drop panel, the joint of slab and columns are under local stress concentration and this punching shear has a risk of failing ability of structure by brittle punching failure. Hence, the study about the joint of slab and columns is being carried out for checking punching shear.