Experimental Study of RC Flexural Beams Under Sustained Damage Load and Seawater Spraying Dry-Wet Cycles

JIAO Junting; YE Yinghua; YANG Ronghua; GUO Zhifeng

doi:10.11936/bjutxb2017030017

Journal of Beijing University of Technology > 2017 > 43(12): 1893-1899. > DOI: 10.11936/bjutxb2017030017

JIAO Junting, YE Yinghua, YANG Ronghua, GUO Zhifeng. Experimental Study of RC Flexural Beams Under Sustained Damage Load and Seawater Spraying Dry-Wet Cycles[J]. Journal of Beijing University of Technology, 2017, 43(12): 1893-1899. DOI: 10.11936/bjutxb2017030017

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Experimental Study of RC Flexural Beams Under Sustained Damage Load and Seawater Spraying Dry-Wet Cycles

1.
School of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, China
2.
Department of Airport and Road Engineering, Beihang University, Beijing 100191, China

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Received Date: March 09, 2017
Available Online: August 03, 2022
Published Date: December 09, 2017

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Abstract

Abstract

In order to solve the problem of deterioration of mechanical properties of reinforced concrete (RC) beam in coastal zoneunder normal working condition of the larger load, the mechanical behavior deterioration of RC beam specimens was investigated by static loading test, after they experienced 180 d atmospheric environment and 180 d seawater spraying dry-wet cycle (Simplified by Ⅰ corrosion); or they experienced 180 d seawater spraying dry-wet cycles and180d atmospheric environment (Simplified by Ⅱ corrosion) by the laboratory simulation. Test results yielded load P_y, limited load P_m, and ductility factor u of them decreased when the beam specimens were acted on by sustained damage load in Ⅰ corrosion (or Ⅱ corrosion); and P_y P_m and u decreased more with the sustained damage load increasing; the decrease of P_y P_m and u for the beam specimens in Ⅱ corrosion were greater than those of P_y P_m and u for the beam specimens in Ⅰ corrosion. The flexural stiffness of the beam specimens became smaller with the increase of the sustained damage load. The experimental results show that the effect on the mechanical properties of RC beams is obvious form the larger sustained damage load and certain corrosive environment.
- seawater spray dry-wet cycle,
- sustained load,
- reinforced concrete (RC) beams,
- mechanical behavior deterioration,
- durability

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References (19)

References

[1]	MALUMBELA G, ALEXANDER M, MOYO P. Interaction between corrosion crack width and steel loss in RC beams corr-oded under load[J]. Cement & Concrete Research, 2010, 40(9):1419-1428. https://www.sciencedirect.com/science/article/pii/S0008884610000797
[2]	朱方之, 赵铁军, 姜福香, 等.荷载损伤后混凝土劣化机理和试验研究[J].工业建筑, 2012, 42(12):67-71 http://kns.cnki.net/KCMS/detail/detail.aspx?filename=gyjz201212015&dbname=CJFD&dbcode=CJFQ ZHU F Z, ZHAO T J, JIANG F X, et al. Experimental study and analysis on deterioration mechanism of damaged concrete induced by mechanical load[J]. Industrial Building, 2012, 42(12):67-71. (in Chinese) http://kns.cnki.net/KCMS/detail/detail.aspx?filename=gyjz201212015&dbname=CJFD&dbcode=CJFQ
[3]	高丽燕, 万小梅, 任心波.持续荷载下混凝土的氯离子扩散性能研究[J].混凝土与水泥制品, 2012, 192(12):21-25 http://kns.cnki.net/KCMS/detail/detail.aspx?filename=hntw201204005&dbname=CJFD&dbcode=CJFQ GAO L Y, WAN X M, REN X B. Study on chloride diffusion of concrete under sustained load[J]. China Concrete and Cement Product, 2012, 192(4):21-25. (in Chinese) http://kns.cnki.net/KCMS/detail/detail.aspx?filename=hntw201204005&dbname=CJFD&dbcode=CJFQ
[4]	姬永生, 曾平, 马辉荣, 等.荷载引起的横向裂缝区钢筋锈蚀率[J].西南交通大学学报, 2013, 48(2):36-41 http://kns.cnki.net/KCMS/detail/detail.aspx?filename=xnjt201301007&dbname=CJFD&dbcode=CJFQ JI Y S, ZENG P, MA H R, et al. Experimental research on influence of transverse crack on corrosion rate of rebar in concrete[J]. Journal of Southwest Jiaotong University, 2013, 48(2):36-41. (in Chinese) http://kns.cnki.net/KCMS/detail/detail.aspx?filename=xnjt201301007&dbname=CJFD&dbcode=CJFQ
[5]	YOON S, WANG K, WEISS W J, et al. Interaction between loading, corrosion and serviceability of reinforced concrete[J]. ACI Materials Journal, 2000, 97(6):637-644. https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&i=9977
[6]	MASOUD S, SOUDKI K, TOPPER T. CFRP-strengthened and corroded RC beams under monotonic and fatigue loads[J]. Journal of composites for construction, 2001, 5(4):228-236. doi: 10.1061/(ASCE)1090-0268(2001)5:4(228)
[7]	BALLIM Y, REID J C. Reinforcement corrosion and the de-flection of RC beams-an experimental critique of current test methods[J]. Cement & Concrete Composites, 2003, 25(6):628-635.
[8]	MALUMBELA G, MOYO P, ALEXANDER M. Behavior of RC beams corroded under sustained service loads[J]. Construction & Building Materials, 2009, 23(11):3346-3351.
[9]	MALUMBELA G, ALEXANDER M, MOYO P. Variation of steel loss and its effect on the ultimate flexural capacity of RC beams corroded and repaired under load[J]. Construction & Building Materials, 2010, 24(6):1051-1059. https://www.sciencedirect.com/science/article/pii/S0950061809003973
[10]	ZHU W, FRANCOIS R, CORONELLI D, et al. Effect of corrosion of reinforcement on the mechanical behavior of hig-hly corroded RC beams[J]. Engineering Structures, 2013, 56:544-554. doi: 10.1016/j.engstruct.2013.04.017
[11]	沈孛, 叶英华, 刁波, 等.海水干湿循环对带裂缝钢筋混凝土柱力学性能及氯离子含量的影响[J].建筑结构学报, 2014, 35(增刊1):69-74 http://www.cnki.com.cn/Article/CJFDTOTAL-JZJB2014S1010.htm SHEN B, YE Y H, DIAO B, et al. Effect of seawater wet-dry cycles on performance and chloride content of RC columns with different initial cracks[J]. Journal of Building Structures, 2014, 35(Suppl 1):69-74. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-JZJB2014S1010.htm
[12]	中国钢铁工业协会. 金属材料拉伸试验第1部分: 室温试验方法: GB/T228. 1-2010[S]. 北京: 中国标准出版社, 2010: 1-15.
[13]	中国建筑科学研究院. 普通混凝土力学性能试验方法标准: GB/T50081-2002[S]. 北京: 中国建筑工业出版社, 2002: 3-14.
[14]	何世钦, 贡金鑫.钢筋混凝土梁中锈蚀钢筋粘结性能的试验研究[J].哈尔滨工业大学学报, 2006, 38(12):2167-2170 doi: 10.11918/j.issn.0367-6234.2012.12.012 HE S Q, GONG J X. Experimental studies on bond characteristics of corroded steel bar in reinforced concrete beams[J]. Journal of Harbin Institute of Technology, 2012, 42(12):67-71. (in Chinese) doi: 10.11918/j.issn.0367-6234.2012.12.012
[15]	YOUNG B, HANCOCK G J. Compression tests of chann-els with inclined simple edge stiffeners[J]. Journal of Structural Engineering Research, 2003, 129(10):1403-1411. doi: 10.1061/(ASCE)0733-9445(2003)129:10(1403)
[16]	孙洋, 刁波, 张笑, 等.侵蚀与荷载耦合作用下砼梁承载力与延性试验[J].哈尔滨工业大学学, 2010, 42(12):1972-1976 doi: 10.11918/j.issn.0367-6234.2010.12.026 SUN Y, DIAO B, ZHANG X, et al. Experimental study on bearing capacity and ductility of reinforced concrete beam in multi-aggressive and loading coupling[J]. Journal of Harbin Institute of Technology, 2010, 42(12):1972-1976. (in Chinese) doi: 10.11918/j.issn.0367-6234.2010.12.026
[17]	吴庆, 袁迎曙.锈蚀钢筋力学性能退化规律试验研究[J].土木工程学报, 2008, 41(12):42-47 doi: 10.3321/j.issn:1000-131X.2008.12.007 WU Q, YUAN Y S. Experimental study on the deterioration of mechanical properties of corroded steel bars[J]. China Civil Engineering Journal, 2008, 41(12):42-47. (in Chinese) doi: 10.3321/j.issn:1000-131X.2008.12.007
[18]	中华人民共和国住房城乡建设部. 混凝土结构设计规范: GB50010-2010[S]. 北京: 中国建筑工业出版社, 2010: 34-53.
[19]	中华人民共和国住房城乡建设部. 混凝土结构耐久性设计规范: GB/T 50476-2008[S]. 北京: 中国建筑工业出版社, 2008: 5-15.

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