An experimental study on the structural behavior of connection types between approach slab and integral abutment has been done for three typical bar connections. Typical hinge style reinforcing bar detail for its connection is preferred in order to accommodate rotation of the approach slab among engineers. However, the straight horizontal bars can be used as connection detail accomodate structural capacity. Total six specimens with three types of rebar detail are tested for direct tensile and bending load. The characteristic structural behaviors are carefully monitored and all the strain gauge data obtained are analyzed. It is shown that the structural performance of all the specimens well exceed its design allowance. Several design suggestions are given based on careful reviews on the experiment.

• 유성근(㈜이산 기술연구소장) | You, Sung-Kun Corresponding author
• 김나연(㈜이산 기술연구소 과장) | Kim, Na-Yeon
• 김호섭(㈜이산 기술연구소 대리) | Kim, Ho-Seop
• 김현기(㈜에이스이엔씨 기술연구소장) | Kim, Hyun-Gi
• 김영호(세진특허법률사무소 부소장) | Kim, Young-Ho