[1]王景全,李嵩林,吕志涛.基于单层纤维失效准则的FRP型材-混凝土组合梁极限承载力计算与试验[J].东南大学学报(自然科学版),2013,43(5):952-956.[doi:10.3969/j.issn.1001-0505.2013.05.009] 　Wang Jingquan,Li Songlin,Lü Zhitao.Calculation and experiments on ultimate bearing capacity of FRP-concrete composite beams based on single layer failure criteria[J].Journal of Southeast University (Natural Science Edition),2013,43(5):952-956.[doi:10.3969/j.issn.1001-0505.2013.05.009] 点击复制 基于单层纤维失效准则的FRP型材-混凝土组合梁极限承载力计算与试验() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第5期

952-956

2013-09-20

文章信息/Info

Title:
Calculation and experiments on ultimate bearing capacity of FRP-concrete composite beams based on single layer failure criteria

1东南大学混凝土与预应力混凝土教育部重点实验室, 南京 210096; 2东南大学国家预应力工程技术研究中心, 南京 210096; 3招商局重庆交通科研设计院有限公司, 重庆 400067
Author(s):
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2National Prestress Engineering Research Center, Southeast University, Nanjing 210096, China
3China Merchants Chongqing Transport Research and Design Institute Co., Ltd, Chongqing 400067, China

Keywords:

TB332;TU398.9
DOI:
10.3969/j.issn.1001-0505.2013.05.009

Abstract:
In order to study the failure mode and bearing capacity of fiber reinforced polymer(FRP)-concrete composite beams, a calculation method for the ultimate bearing capacity of composite beams based on the single layer failure criteria was proposed. First, the effects of material properties, laying ways, and interface connection ways on the structural behaviors of FRP-concrete composite beams were analyzed. The rule of diversity failure modes of FRP-concrete composite beam was revealed. Then, a variety of types of damage were simply classified into two categories based on FRP failure and concrete deck destruction. Finally, the formulas to calculate stress of each FRP lamina were established by micromechanics methods. Destructive tests of three pieces of FPR-concrete composite beams subjected to monotonic load were conducted. The calculation results agree well with the experimental results. The proposed calculation method can judge the failure mode of composite beams and simplify the computational complexity. Therefore, it is applicable to structural failure caused by destruction of FRP fiber.

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