• Title/Summary/Keyword: width of grout column

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Compressive Strength of Horizontal Joints in Precast Concrete Large Panel System (대형 콘크리트 패널구조 수평접합부의 지지력 성능에 관한 연구)

  • 서수연;정봉오;이원호;이리형
    • Magazine of the Korea Concrete Institute
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    • v.6 no.2
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    • pp.138-147
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    • 1994
  • The compressive strength of horizontal joints in precast concrete large panel structures depends on parameters such as grout and panel strength, detail of joint, joint moment, width of grout column, and etc. 44 specimens were tested to investigate the effects of parameters that influence the compressive strength of horizontal joints. The design formula specified in Korean Cock for compression horizontal joints must be reviewed, because it was based on the test results of the joint types not used in Korea. In this study comparing the test results, there fore, the validity of the design formulas was evaluated and a suitable formula was proposed to predict the ultimate strengths of compression horizontal joints. The increase of ultimate strengths was not observed, even if confined the horizontal displacement of slabs and reinforced the wall edge, when the grout strength is lower than panel strength. From the comparison of test results and those by the proposed formula, it was shown that proposed formula was suitable to predict the ultimate compressive strength of horizontal joints.

Compressive Strength of Horizontal Joints Pocket in Precast Concrete Large Panel System (대형판 PC 구조 시스템의 수평접합부 충전부위 구조성능에 관한 실험연구)

  • Yoo, Seong-Hoon;Cho, Seung-Ho;Park, Hyun-Soo;Euh, Yang-Suk;Chung, Lan
    • Proceedings of the Korea Concrete Institute Conference
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    • 1997.10a
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    • pp.597-602
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    • 1997
  • The compressive strength of horizontal joints in precast concrete large panel structures depends on parameters such as grout and panel strength, detail of joint, joint moment, width of grout column etc. As the panels are only connected at the pocket, it results in the reduction of compressive strength area. The purposes of this study are to develop the suitable grout material the joint pocket and to enable us to evaluate structural capacity. The validity of the design formulas provides us more economic system in construction. Test results of 15 specimens show that the proper construction procedure and grouting material develop the sufficient compressive strength of the wall as monolithic system.

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