UHPC加固钢筋混凝土T梁的抗弯承载力计算_《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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UHPC加固钢筋混凝土T梁的抗弯承载力计算

Calculation of flexural capacity of UHPC-reinforced concrete T-beams

2024年第5期

加固；超高性能混凝土（UHPC）；T梁；抗弯承载力；理论计算

Reinforcement; Ultra-high performance concrete; T-beam; Flexural capacity; Theoretical formula

2024年第5期

10.19761/j.1000-4637.2024.05.046.05

山东省交通运输厅科技计划项目（2022B06）；济青高速铁路有限公司科技计划项目（JQKJ2024-10）。

靳玉栋1，陈聪1，刘鹤2，郭玉鹏1，亓兴军2,*

1.济青高速铁路有限公司，山东济南 250102；2.山东建筑大学交通工程学院，山东济南 205101

靳玉栋1，陈聪1，刘鹤2，郭玉鹏1，亓兴军2,*

靳玉栋,陈聪,刘鹤,等.UHPC加固钢筋混凝土T梁的抗弯承载力计算[J].混凝土与水泥制品,2024(5):46-50.

JIN Y D,CHEN C,LIU H,et al.Calculation of flexural capacity of UHPC-reinforced concrete T-beams[J].China Concrete and Cement Products,2024(5):46-50.

浏览量:

1000

摘要：综合考虑结构设计原理与现行桥梁加固规范，推导了UHPC加固钢筋混凝土T梁的抗弯承载力基本假定及计算公式，采用非线性有限元软件建立了试件的三维实体模型，进行了四点弯曲模拟试验，并对比分析了理论公式计算值与数值模拟试验值。结果表明：在截面高度增加10~20 cm的情况下，UHPC加固试件的抗弯承载力有显著提升；加固试件的抗弯承载力数值模拟试验值均大于理论计算值，平均相对误差为14.4%，理论公式具有一定的安全储备；推导的理论计算公式能简单、快速地预测试件的抗弯承载力，可为UHPC加固钢筋混凝土T梁的理论计算与工程应用提供参考。 Abstract: The basic assumptions and formula for the flexural capacity of UHPC-reinforced concrete T-beam were deduced by combining the structural design principle with the current bridge reinforcement code. The nonlinear finite element software was used to establish a three-dimensional solid model of a simply supported T-beam, carry out four-point bending simulation tests, and compare the calculated values of the theoretical formulas with the numerical simulation test values. The results show that the flexural load capacity of T-beam is significantly increased with a small increase of 10~20 cm in section height, which proves that ultra-high performance concrete is an excellent bridge reinforcement material with high reinforcement efficiency; the numerical simulation test values of flexural load capacity of T-beam are larger than the theoretical calculation values after reinforcement, with an average relative error of 14.4%, and the theoretical formulas have a certain amount of safety reserves. The formula derived from the research results can predict the flexural load capacity of T-beam combined section beams in a simple, safe and fast way, and provide a reference for the theoretical calculation and engineering application of ultra-high-performance concrete reinforced reinforced concrete T-beam.

英文名 : Calculation of flexural capacity of UHPC-reinforced concrete T-beams

刊期 : 2024年第5期

关键词 : 加固；超高性能混凝土（UHPC）；T梁；抗弯承载力；理论计算

Key words : Reinforcement; Ultra-high performance concrete; T-beam; Flexural capacity; Theoretical formula

刊期 : 2024年第5期

DOI : 10.19761/j.1000-4637.2024.05.046.05

文章编号 :

基金项目 : 山东省交通运输厅科技计划项目（2022B06）；济青高速铁路有限公司科技计划项目（JQKJ2024-10）。

作者 : 靳玉栋1，陈聪1，刘鹤2，郭玉鹏1，亓兴军2,*

单位 : 1.济青高速铁路有限公司，山东济南 250102；2.山东建筑大学交通工程学院，山东济南 205101

靳玉栋1，陈聪1，刘鹤2，郭玉鹏1，亓兴军2,*

靳玉栋,陈聪,刘鹤,等.UHPC加固钢筋混凝土T梁的抗弯承载力计算[J].混凝土与水泥制品,2024(5):46-50.

JIN Y D,CHEN C,LIU H,et al.Calculation of flexural capacity of UHPC-reinforced concrete T-beams[J].China Concrete and Cement Products,2024(5):46-50.

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结论

参考文献

引用本文

Abstract: The basic assumptions and formula for the flexural capacity of UHPC-reinforced concrete T-beam were deduced by combining the structural design principle with the current bridge reinforcement code. The nonlinear finite element software was used to establish a three-dimensional solid model of a simply supported T-beam, carry out four-point bending simulation tests, and compare the calculated values of the theoretical formulas with the numerical simulation test values. The results show that the flexural load capacity of T-beam is significantly increased with a small increase of 10~20 cm in section height, which proves that ultra-high performance concrete is an excellent bridge reinforcement material with high reinforcement efficiency; the numerical simulation test values of flexural load capacity of T-beam are larger than the theoretical calculation values after reinforcement, with an average relative error of 14.4%, and the theoretical formulas have a certain amount of safety reserves. The formula derived from the research results can predict the flexural load capacity of T-beam combined section beams in a simple, safe and fast way, and provide a reference for the theoretical calculation and engineering application of ultra-high-performance concrete reinforced reinforced concrete T-beam.

关键词:

uhpc

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理论

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[1] 吕长荣,刘鹤,亓兴军,等.超高性能混凝土U形包裹加固钢筋混凝土T梁研究[J].混凝土与水泥制品,2023(7):46-50.
[2] LARRARD F D，SEDRAN T.Optimization of ultra-high performance concrete by the using of a packing model[J]. Cement and Concrete Research,1994,24(6):997-1009.
[3] 梁兴文,汪萍,徐明雪,等.配筋超高性能混凝土梁受弯性能及承载力研究[J].工程力学,2019,36(5):110-119.
[4] AHABORN T M,HARRIS D K,MISSON D L,et al.Characterization of strength and durability of ultra-high-performance concrete under variable curing conditions[J].Transportation Research Record,2011,2251(1):68-75.
[5] ALAEE F J,KARIHALOO B L.Retrofitting of reinforced concrete beams with CARDIFRC[J].Journal of Composites for Construction,2003,7(3):536-552.
[6] LEE M G,WANG Y C,CHIU C T.A preliminary study of reactive powder concrete as a new repair material a preliminary study of reactive powder concrete as a new repair material [J]. Construction and Building Materials,2007,21(1):182-189.
[7] HABEL K,DENARIE E,BRUHWILER E.Time dependent behavior of elements combining ultra-high performance fiber rein-forced concretes(UHPFRC) and reinforced concrete[J]. Materials and Structures,2006,39(5):557-569.
[8] HABEL K,DENARIE,BRUHWILE E.Experimental investigation of composite ultra-high-performance fiber-reinforced concrete and conventional concrete members[J].ACI Structural Journal,2007,104(1):93-101.
[9] OESTERLEE C.Structural response of reinforced UHPFRC and RC composite members [D].Switzerland:Ecole Polytechnique Federale de Lausanne,2010.
[10] LI W W,JI W Y，AN M Z,et al.Flexural performance of composite prestressed UHPC-NC T-girders[J].American Society of Civil Engineers,2020,25(9):04020064.
[11] SAFDAR M,MATSUMOTO T,KAKUMA K.Flexural behavior of reinforced concrete beams repaired with ultra-high performance fibre reinforced concrete [J].Composite Structures,2016,157:448-460.
[12] PASCHALIS S A,LAMPROPOULOS A P,TSIOULOU O.Experimental and numerical study of the performance of ultra high performance fiber reinforced concrete for the flexural strengthening of full scale reinforced concrete members[J]. Construction and Building Materials,2018,186:351-366
[13] 张阳,党祺，穆程.UHPC加固箱梁顶板受弯性能试验研究[J]．湖南大学学报(自然科学版),2017,44(3):8-18.
[14] ZHANG Y,LI X L,ZHU Y P,et al.Experimental study on flexural behavior of damaged reinforced concrete (RC) beam strengthened by toughness-improved ultra-high performance concrete(UHPC) layer[J].Composites Part B:Engineering, 2020,186:107834.
[15] 邓宗才,张戊晨.混杂纤维增强RPC加固混凝土梁抗弯性能[J].哈尔滨工程大学学报,2015,36(9):1199-1205.
[16] 邵旭东,邱明红,晏班夫,等.超高性能混凝土在国内外桥梁工程中的研究与应用进展[J].材料导报,2017,31(23):33-43.
[17] 叶见曙.结构设计原理[M].北京:人民交通出版社,2014.
[18] 中交第一公路勘察设计研究院有限公司.公路桥梁加固设计规范:JTG/T J22—2008[S]北京:人民交通出版社,2008.
[19] 杨剑,方志.超高性能混凝土单轴受压应力-应变关系研究[J].混凝土,2008(7):11-15.
[20] 张哲,邵旭东,李文光,等.超高性能混凝土轴拉性能试验[J].中国公路学报,2015,28(8):50-58.
[21] 张阳,黄松龄,刘颖峰,等.预应力UHPC加固RC梁抗弯性能试验研究[J].湖南大学学报(自然科学版),2022,49(3):23-31.
[22] 中华人民共和国住房和城乡建设部.混凝土结构设计规范(2015年版):GB 50010—2010[S].北京:中国建筑工业出版社,2010.

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UHPC加固钢筋混凝土T梁的抗弯承载力计算

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