방음재를 삽입한 합성슬래브의 수평전단성능에 관한 실험적 연구
An Experimental Study on Longitudinal Shear Capacity of Composite Slab Embedded with Silence Insulator
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초록
본 연구는 방음재를 삽입한 새로운 개념의 합성슬래브 시스템을 제안하고, T-형 바의 폭, 전단보강 철근의 설치 등을 실험의 주요변수로 한 총 7개의 실험체를 제작 Push-Down실험방법으로 수행한 수평전단성능에 대한 실험 결과를 제공하고 있다. 실험결과 T-형바를 전단키로 적용하고 방음재를 삽입한 실험체가 기본실험체에 비해 수평전단성능에서 2배 이상 우수한 것으로 나타났다. 이는 제안한합성슬래브상세를 실제 현장 적용하여도 기존의 합성슬래브 보다 구조적 측면에서 상당한 안전율을 확보할 것으로 생각되며, 내진동 및방차음의 개선에도 크게 기여할 것으로 판단된다.
Abstract
This paper provides the results for experimental study on longitudinal shear performance for new-concept composite slabs embedded withsilence insulator. Longitudinal shear capacity tests are used to predict characteristics of composite action between the concrete block, silence insulatorand deckplate. A total set of 7 Push-Down specimens are tested to clarify the composite action between the concrete block, silence insulator and deckplate. Parameters in this study are the width of T-type bar, the depth of reinforced bar and the thickness of silence insulator . The results from experimentalstudy on longitudinal shear capacity for new-concept composite slabs applied T-type bar, Reinforced bar and Silence insulator are summarized as follows. In test result, the Longitudinal Shear Capacity of the new concept specimen is 2 times excellent than basic specimen with safety. It is expected thatapplying the proposed composite slab detail at the actual site will provide a significant safety factor in structural aspect of the existing composite slab,and greatly contribute to the improvement capacities of resisting vibration and sound .
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