Nonlinear Analysis of Flexural Members of GFRP SR Concrete

To investigate further the bearing capacity of flexural members of GFRP（Glass Fiber Reinforced Polymer）SR(steel-reinforced concrete) under symmetric monotonic loading, a full range nonlinear analysis is made. Flexural capacity computing program of GFRP-Reinforced structures is put out, according to structure reinforcing theory and correlative rules through the finite ribbon method based on flat section assumption. The moment-curvature relative curves and the influence curves of the fiber winding angle and pipe wall thickness to load-deformation are obtained by the computer programming. The test specimen’s flexural capacity increases obviously with the increasing of steel ribs models. The slope of curve decreasing in monotonic loading latterly showed that the ductility of component improves. The changes of concrete strength had little effect on initial stiffness and capacity of GFRP SR concrete.

References

[1] Qingli Wang, Yingfu Ning, Bin Wu: In a circle CFRP steel multiple-unit tube fills in the concretes component to bend performance study [J]. Science and technology and project. 2006, 6(6) , pp.718-722, in Chinese.

[2] Zhenyu Zhu，Iftekhar Ahmad，and Amir Mirmiran: Splicing of Precast Concrete-Filled FRP Tubes. Journal of Composites for Construction, Vol. 10, No. 4(2006) pp.345-356.

DOI: https://doi.org/10.1061/(asce)1090-0268(2006)10:4(345)

[3] Y. -K. Yeh and Y. L. Mo: Shear Retrofit of Hollow Bridge Piers with Carbon Fiber-Reinforced Polymer Sheets. Journal of Composites for Construction，Vol. 9，No. 4(2005) pp.327-336.

DOI: https://doi.org/10.1061/(asce)1090-0268(2005)9:4(327)

[4] Jinguang Teng, Jianfei Chen, Smith S T and so on: FRP reinforcement concrete structure [M]. Beijing: China Building industry Publishing house, 2005, pp.2-5, in Chinese.

[5] Dongxin Zhang, Longnan Huang, Guorong Wang and so on: Glass steel pipe concrete column mechanical properties experimental study [J]. Harbin Construction college newspaper, 2000, p.33 (1): 73-76, in Chinese.

[6] Longnan Huang, Dongxing Zhang, and so on: The glass steel pipe concrete column axle center presses the reduced-size edition construction relations to study the [J]. Wuhan University of Science and Technology journal, 2002, 24 (7) , pp.31-34.

[7] Huang Y L，Ye L P，Lam L，Teng J G. : A unified analysis-oriented model for confined concrete and its applications [C]. Proceedings of International Symposium on Confined Concrete, 2004, pp.12-14.

[8] Guochang Lu: FRP governs and restrains ties the concretes axis to press the performance study [D]. master's degree paper, Beijing: Tsinghua University construction department, 2005, in Chinese.

[9] Wu Donghui, Yang Song, Tang Guiyun, Zhou Ting: The FRP tube strengthens the concrete structure the axis to press the ultimate strength [J]. fibrous composite, 2006, 1 (15) , pp.16-17, in Chinese.

[10] A Kelly and S T Mileiko: Fabrication of Composites. Handbook of Composites. Elsevier Sciense Publishers B.V., 1983, (47) , pp.125-129.

[11] Shiwei Wang, Diyang Hou, peng Dong: The FRP tube strengthens the concrete structure the performance study [J]. fibrous composite, 2005, 24(2) , pp.58-60, in Chinese.

[12] Ping Guan, Qingxiang Wang, YanWu: Reinforcing steel - steel pipe excel in concretes combination component anti-curved supporting capacity computation [J]. Engineering construction and design. 2005, (11) , pp.28-29, in Chinese.

[13] Ziraba Y N, Baluch M H, Basunbul I A, et al: Guidelines toward the Design of Reinforced Concrete Beams withexternally bonded composite laminates[J]. ACI Structural Journal, 1999, 96(2) , pp.212-220.

DOI: https://doi.org/10.14359/612

[14] Amir M，Malek , Hamid , et al: Prediction of Failure Load of R/C Beams Strengthened with FRP Plate Due to Stress Concentration at the Plate End[J] . ACI Structural Journal, 1998, 95(1), pp.142-152.

DOI: https://doi.org/10.14359/534