预应力混杂纤维板增强混凝土梁的抗弯试验研究

焦友进; 王红涛; 杨才千; 吴智深

doi:10.13204/j.gyjz201306006

预应力混杂纤维板增强混凝土梁的抗弯试验研究

doi: 10.13204/j.gyjz201306006

1.
东南大学土木工程学院,南京210096

基金项目:

国家自然科学基金资助项目(50808040);国家重点基础研究发展计划(973)资助项目(2012CB026200);863国家高技术研究发展计划项目(2012AA03A204)

详细信息

作者简介:
第一作者：焦友进, 男, 1989年出生, 硕士。电子信箱：790567430@qq.com

中图分类号: TU377;TU312
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- 文章访问数: 111
- HTML全文浏览量: 6
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- 被引次数: 0
出版历程
- 收稿日期: 2013-02-26
- 刊出日期: 2013-06-20

STUDY ON THE FLEXURAL BEHAVIOR OF PRE-STRESSED C/BFRP-CONCRETE COMPOSITE BEAMS

1.
School of Civil Engineering,Southeast University,Nanjing 210096,China

摘要

摘要: 通过对不同模量碳纤维和玄武岩纤维混杂成的纤维板增强钢筋混凝土梁(C/BFRP混凝土复合梁)试验，研究不同混杂参数及预应力对复合梁受弯性能的影响，并对复合梁的承载能力、刚度、挠度及延性进行讨论。试验结果表明，预应力C/BFRP能有效提高钢筋混凝土梁的受弯承载能力，延缓梁裂缝的出现，提高梁的延性，同时复合梁屈服后有较高的二次刚度。
- 预应力 /
- 碳纤维 /
- 玄武岩纤维 /
- 复合梁 /
- 受弯承载力 /
- 二次刚度
Abstract: The flexural behaviors of pre-stressed C/BFRP-concrete composite beams were experimentally studied, wherein C/BFRP is carbon basalt fibers reinforced polymer.The effects of hybrid modes and prestress levels on the bending behaviors of the composite beams were investigated.The load carrying capacity, stiffness, deflection and ductility of the beams were also discussed.The experimental results show that prestressed C/BFRP can effectively improve the bending behaviors of the composite beams, delay the initiation of the cracks and improve the ductility of the beams.The composite beams also have higher secondary stiffness after the yielding of steel reinforcing bars.
- prestressing /
- carbon fiber /
- basalt fiber /
- composite beam /
- flexural strength /
- secondary stiffness

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参考文献(6)

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