A composite structural system which combines the advantages of reinforced concrete and steel structure is a structural system that has superior performance compared to the existing structural systems. In recent years, according to the increasing of attention for composite structures, the researches for the composite structures are more carried out. The composite beam used in this study is consisted of pre-cast concrete, cast-in-place concrete, T-type steel, and reinforcing bars. The steels are only used in each ends of the beam. In this study, the reasonable steels length at the ends of the beam is analyzed by structural performance analysis for changing in the length of the steel.

• 고효진(학생회원, 경희대학교 건축공학과 석사과정) | Hyo-Jin Ko
• 홍원기(정회원, 경희대학교 건축공학과 정교수) | Won-Kee Hong
• 박선치(정회원, 경희대학교 건축공학과 박사후 연구원) | Seon-Chee Park
• 임균택(학생회원, 경희대학교 건축공학과 석사과정) | Gyun-Taek Lim
• 김지훈(학생회원, 경희대학교 건축공학과 석사과정) | Ji-Hun Kim