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Analytical studies on externally post tensioned concrete girders with existing shear cracks

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Analytical studies on externally post tensioned concrete girders with existing shear cracks
นักวิจัย : Suntharavadivel, T. G. , Aravinthan, Thiru.
คำค้น : Concrete bridges Maintenance and repair. , TBA. , TBA. , 090506 Structural Engineering. , Concrete bridges Cracking. , Post-tensioned prestressed concrete construction. , Concrete beams Maintenance and repair. , External post tensioning -- Strengthening -- Shear crack -- Member capacity -- Repair -- Epoxy injection , Conference Paper. Full Paper (Refereed)
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2550
อ้างอิง : http://hdl.cqu.edu.au/10018/62116
ที่มา : Suntharavadivel, T & Aravinthan, T 2007, 'Analytical studies on externally post tensioned concrete girders with existing shear cracks' in Conference proceedings, 23rd Biennial Conference, 18-20 October, Adelaide, South Australia, Concrete Institute of Australia, Rhodes, NSW.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Conference proceedings, 23rd Biennial Conference of the Concrete Institute of Australia, 18-20 October 2007, Adelaide, South Australia. Rhodes, N.S.W. : The Institute, 2007. p. 689-697 9 pages Refereed 0909375763 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In recent years, the important of the maintenance, rehabilitation, and strengthening of reinforced concrete bridges has increased due to various factors including increase in traffic volume and weight, structural aging and exposure to adverse environmental conditions. External post tensioning is a suitable technique for rehabilitation or strengthening of concrete bridges. While external post tensioning have been effectively used for the flexural strengthening of existing bridges, recent experimental investigations have shown that the efficiency of the shear strengthening using external post tensioning is significantly reduced by the existing shear cracks. The effect of the existing shear cracks is a complex function depending on a number of parameters including width of the cracks, crack inclination, shear reinforcement ratio and concrete strength. In order to analytically investigate the effect of such shear cracks in externally post-tensioned bridge members, numerical analysis was carried out using ABAQUS software. This paper focuses on a simply supported reinforced concrete girder strengthened by external tendons with existing shear cracks. The accuracy of this type of analytical modelling is verified by comparing with the experimental results conducted on similar reinforced concrete girders.

บรรณานุกรม :
Suntharavadivel, T. G. , Aravinthan, Thiru. . (2550). Analytical studies on externally post tensioned concrete girders with existing shear cracks.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Suntharavadivel, T. G. , Aravinthan, Thiru. . 2550. "Analytical studies on externally post tensioned concrete girders with existing shear cracks".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Suntharavadivel, T. G. , Aravinthan, Thiru. . "Analytical studies on externally post tensioned concrete girders with existing shear cracks."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2550. Print.
Suntharavadivel, T. G. , Aravinthan, Thiru. . Analytical studies on externally post tensioned concrete girders with existing shear cracks. กรุงเทพมหานคร : Central Queensland University, Australia; 2550.