CFRP修复预制混凝土管片界面滑移试验研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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CFRP修复预制混凝土管片界面滑移试验研究

Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP

2020年第12期

CFRP；预制混凝土管片；弯剪试验；本构关系

CFRP; Ring segment; Bending-shearing test; Constitutive relation

2020年第12期

10.19761/j.1000-4637.2020.12.036.04

国家自然基金项目（51868075）；渭南市科技计划项目（2019-ZDYF-JCYJ-129、2020-ZDYF-JCYJ-187）；陕西铁路工程职业技术学院中青年科技创新人才项目（KJRC201810）。

聂红宾1，2，谷拴成2，何晓萍3，翟鑫懿1

1.陕西铁路工程职业技术学院轨道工程系，陕西渭南 714000；2.西安科技大学建筑与土木工程学院，陕西西安 710054；3.华设设计集团股份有限公司，江苏南京 210000

聂红宾1，2，谷拴成2，何晓萍3，翟鑫懿1

聂红宾,谷拴成,何晓萍,等.CFRP修复预制混凝土管片界面滑移试验研究[J].混凝土与水泥制品,2020(12):36-39.

NIE H B,GU S C,HE X P,et al.Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):36-39.

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摘要：为了研究碳纤维高强复合材料（Carbon Fiber Reinforced Plastics，CFRP）在预制混凝土管片破损修复中的受力性能，以沿海某城市双线地铁盾构区间线路为项目依托，通过弯剪试验研究了破损管片经过CFRP修复后的抗剪与滑移行为。试验结果表明：随着CFRP粘贴长度的增加，承载力提高较大，整体挠度也相应增加，剥离滑移发生在CFRP与混凝土界面；随着层数的增加，承载力增加80%~100%，相对滑移下降60%~75%，抗剪能力提高180%；粘贴1层CFRP基本可满足现行规范要求。 Abstract: In order to further study the mechanical properties of carbon fiber reinforced plastics (CFRP) in the repair technology of subway damaged tube segments, by relying project on the double subway shield section line in a coastal city, it was used to investigate that bending-shearing test method to study mechanical behavior of shield′s damaged segments repaired by CFRP. The results show that, in bending-shearing test, the bearing capacity of segments repaired by CFRP has a big improvement and deflection also adds and stripping damage happens at the interface of CFRP and concrete with CFRP′s length increasing. Bearing capacity is increased by 80%~100% and deflection is reduced by 60%~67% as increasing in the number of layers, it can effectively control the radial displacement. It results that it can completely meet the limitations of China′s existing norms that it pastes one layer of CFRP.

英文名 : Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP

刊期 : 2020年第12期

关键词 : CFRP；预制混凝土管片；弯剪试验；本构关系

Key words : CFRP; Ring segment; Bending-shearing test; Constitutive relation

刊期 : 2020年第12期

DOI : 10.19761/j.1000-4637.2020.12.036.04

文章编号 :

基金项目 : 国家自然基金项目（51868075）；渭南市科技计划项目（2019-ZDYF-JCYJ-129、2020-ZDYF-JCYJ-187）；陕西铁路工程职业技术学院中青年科技创新人才项目（KJRC201810）。

作者 : 聂红宾1，2，谷拴成2，何晓萍3，翟鑫懿1

单位 : 1.陕西铁路工程职业技术学院轨道工程系，陕西渭南 714000；2.西安科技大学建筑与土木工程学院，陕西西安 710054；3.华设设计集团股份有限公司，江苏南京 210000

聂红宾1，2，谷拴成2，何晓萍3，翟鑫懿1

聂红宾,谷拴成,何晓萍,等.CFRP修复预制混凝土管片界面滑移试验研究[J].混凝土与水泥制品,2020(12):36-39.

NIE H B,GU S C,HE X P,et al.Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):36-39.

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摘要

参数

结论

参考文献

引用本文

Abstract: In order to further study the mechanical properties of carbon fiber reinforced plastics (CFRP) in the repair technology of subway damaged tube segments, by relying project on the double subway shield section line in a coastal city, it was used to investigate that bending-shearing test method to study mechanical behavior of shield′s damaged segments repaired by CFRP. The results show that, in bending-shearing test, the bearing capacity of segments repaired by CFRP has a big improvement and deflection also adds and stripping damage happens at the interface of CFRP and concrete with CFRP′s length increasing. Bearing capacity is increased by 80%~100% and deflection is reduced by 60%~67% as increasing in the number of layers, it can effectively control the radial displacement. It results that it can completely meet the limitations of China′s existing norms that it pastes one layer of CFRP.

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