• Title/Summary/Keyword: 철근격자망

Search Result 1, Processing Time 0.015 seconds

Structural Performance of RC Slab-Wall Joints Reinforced by Welded Deformed Steel Bar Mats (철근격자망을 사용한 슬래브-벽체 접합부의 구조성능)

  • Park, Seong-Sik;Yoon, Young-Ho;Lee, Bum-Sik
    • Land and Housing Review
    • /
    • v.2 no.1
    • /
    • pp.61-68
    • /
    • 2011
  • In order to clarify the structural performances of Welded Deformed Steel Bar Mats (WDSBM), the research stated includes the tests for standard hook of top bars of slab in concrete slab-wall joints, the tests for embedment length of top bar of slab, and the development strength tests for standard hook. The test results are as follows; (1) For slab-wall joints using WDSBM as reinforcement in slab, if the top bars of WDSBM are spliced by ordinary bars with sufficient development length and size, it is enough for the strength and crack control. (2) When WDSBM of slab is spliced in joint, the strength is increased with the embedment of bars of this WDSBM into wall. Beyond peak strength, however, ductility is diminished to that as no splice due to pull-out failure. (3) For slab-wall system, ultimate strain of concrete for flexural compression zone in lower surface of slab seems much greater than that of normal concrete beam. The reason is that normal concrete beam has the joint with $180^{\circ}$, however slab-wall joint has the $90^{\circ}$ of which concrete can be confined.