A Theory for End Zone Stresses in Pretensioned Concrete Beams

Marshall, W T

doi:10.15554/pcij.04011966.45.51

Cited by 3 publications

(1 citation statement)

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“…(Ghosh and Fintel, 1986;Mitchell et al, 1993;Roller et al, 1995), 단부균열에 대한 보강에 관한 연구 (Marshall, 1966;Marshall and Mattok, 1962;Nawy and Huang, 1977;Mirza and Tawfik, 1978) 그리고 프리텐션 부재의 피로와 내구성에 관한 연구 (Kaar et al, 1975;Boshore, 1965;Rabbat et al, 1979;Russell and Burns, 1994 3개 또는 7가닥 강선으로 된 프리텐션용 강연선은 위험단면을 지나 다음의 정착 길이 이상으로 부착되어야 한다.…”

Section: Fig 1 Concept Of Pretension Systemunclassified

A Structural Performance Test of a Full-scale Pretension PSC Girder

Kim

2013

Journal of the Korean Society of Civil Engineers

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The main purpose of this study is to investigate the static behavior of a prestressed concrete (PSC) girder using pre-tension method. A 30m long full-scale pretension PSC girder is fabricated by the portable fabrication system and tested. All results have been compared to those obtained from F.E.A results. Deflections at the middle of girders have been measured for evaluation. Also, strains of concrete at the middle of span have been measured. From the results of experimental, the load when initial crack was developed was obtained to be 1.75 time the unfactered design load in the full-scale girder specimen. Also, the data of specimen are satisfied the desgin requirements of ductility on the Korea Bridge Design Specification(2010). In service state, the vertical deflection at center of test specimen when a initial crack was developed is satisfied the vertical deflection requirement under live load of the Korea Bridge Design Specification(2010). To verify the experimental results, we numerical analyze the test and confirmed that the data were similar with results from the test above. The pretension girder fabricated in site were found to have enough stregnth for safety under and after construction.

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