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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.53 No.6
- 발행연도
- 2015.1
- 수록면
- 1,083 - 1,104 (22page)
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This paper provides the results of an experimental investigation into the flexural behavior ofcontinuous two-span unbonded post-tensioned high strength concrete (HSC) beams, strengthened by endanchoredCFRP laminates of different configurations in the hogging region. Implementing two differentconfigurations of end-anchorage systems consisting of steel plates and bolts and carefully monitoring thedevelopment of strains throughout the load history using sufficiently large number of strain gauges, theresponse of beams including the observed crack propagations, beam deflection, modes of failure, capacityenhancement at service and ultimate and the amount of moment redistribution are measured, presented anddiscussed. The study is appropriate in the sense that it covers the more commonly occurring two span beamsinstead of the simply supported beams investigated by others. The experiments reconfirmed the finding ofothers that proper installation of composite strengthening system is most important in the quality of the bondwhich is essential for the internal transfer of forces. It was also found that for the tested two span continuousbeams, the capacity enhancement is more pronounced at the serviceability level than the ultimate. This is animportant finding as the design of these beams is mostly governed by the serviceability limit state signifyingthe appropriateness of the suggested strengthening method. The paper provides quantitative data on theamount of this capacity enhancement.
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참고문헌 (30)
참고문헌 신청
2011 / Building Code Requirements for Structural Concrete and Commentary
2008 / Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures :76
Akbarzadeh Bengar, H. / 2010 / Experimental investigations and verification of debonding strain of RHSC continuous beams strengthened in flexure with externally bonded FRPs / Mater. Struct 43:815~837
Akbarzadeh, H. / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous Beams strengthened with fibre reinforced polymer / Mater. Des 31:1130~1147
2012 / ASTM 370A Standard Test Methods and Definitions for Mechanical Testing of Steel Products / American society for testing and materials
2008 / Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures :76
Akbarzadeh Bengar, H. / 2010 / Experimental investigations and verification of debonding strain of RHSC continuous beams strengthened in flexure with externally bonded FRPs / Mater. Struct 43:815~837
Akbarzadeh, H. / 2010 / Experimental and analytical investigation of reinforced high strength concrete continuous Beams strengthened with fibre reinforced polymer / Mater. Des 31:1130~1147
2012 / ASTM 370A Standard Test Methods and Definitions for Mechanical Testing of Steel Products / American society for testing and materials
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