PUS와 지하 바닥구조 접합부 전단 성능평가

Recently the Permanent Uni-wall System (PUS) has been developed which improved the disadvantage of the CIP and could be used as permanent retaining wall. From analyses of the characteristics of design and construction of PUS, shear friction reinforcements with couplers were adopted for shear design of the joints. Twelve types of joints were developed which were classified according to the types of floor structures, wale, and piles of PUS. Two typical joints were tested and the joints showed satisfactory behaviors on the points of shear strength, stiffness, and serviceability. Especially the shear strengths were much higher than the design strengths due to the shear keys which were by-products in splicing shear reinforcements.