上海交通大学学报 ›› 2016, Vol. 50 ›› Issue (03): 370-376.
岳著文,李镜培,李林,邵伟
收稿日期:
2014-12-05
出版日期:
2016-03-28
发布日期:
2016-03-28
基金资助:
YUE Zhuwen,LI Jingpei,LI Lin,SHAO Wei
Received:
2014-12-05
Online:
2016-03-28
Published:
2016-03-28
摘要: 摘要: 针对海工环境中的预应力高强度混凝土(PHC)管桩,考虑离心分层,将其使用寿命分为诱导期和发展期.对诱导期氯离子输运进行计算,采用差分法对Fick第二定律进行解答,求解诱导期寿命,而发展期寿命采用弹性力学理论求解.计算表明,诱导期和发展期寿命与保护层厚度分别呈线性和指数变化关系,砂浆层厚度增大时,发展期寿命急剧减小,内部封闭可增大PHC管桩使用寿命3~4倍.通过对PHC管桩180 d氯盐侵蚀实验,验证了诱导期计算理论的准确性.
中图分类号:
岳著文, 李镜培, 李林, 邵伟. 海工环境下预应力高强混凝土管桩使用寿命计算[J]. 上海交通大学学报, 2016, 50(03): 370-376.
YUE Zhuwen, LI Jingpei, LI Lin, SHAO Wei. Service Life Prediction of Prestress High Concrete Pipe Piles in Marine Environment[J]. Journal of Shanghai Jiao Tong University, 2016, 50(03): 370-376.
[1]CHEN D, MAHADEVAN S. Chlorideinduced reinforcement corrosion and concrete cracking simulation[J]. Cement & Concrete Composites, 2008, 30(3):227238. [2]ZHANG J Y, LOUNIS Z. Nonlinear relationships between parameters of simplified diffusionbased model for service life design of concrete structures exposed to chlorides[J]. Cement and Concrete Composites, 2009, 31(8): 591600. [3]BHARGAVA K, GHOSH A K, MORI Y, et al. Modeling of time to corrosioninduced cover cracking in reinforced concrete structures[J]. Cement And Concrete Research, 2005, 35(11): 22032218. [4]CHERNIN L, VAL D V, VOLOKH K Y. Analytical modelling of concrete cover cracking caused by corrosion of reinforcement[J]. Materials and Structures, 2010, 43(4): 543556. [5]邵伟, 李镜培, 岳著文. 氯离子侵蚀混凝土管桩寿命预测理论模型[J]. 硅酸盐学报, 2013, 41(5): 575581. SHAO Wei, LI Jingpei, YUE Zhuwen. Service life prediction of concrete pipe pile due to chloride ion corrosion by modeling[J]. Journal of the Chinese Ceramic Society, 2013, 41(5): 575581. [6]阮起楠. 预应力混凝土管桩[M]. 北京: 中国建材工业出版社. 2000. [7]李镜培, 岳著文, 邵伟, 等. 海工环境PHC管桩设计寿命计算[J]. 硅酸盐学报, 2014, 42(4):476485. LI Jingpei, YUE Zhuwen,SHAO Wei,et al. Calculation of designed lifetime of PHC pile piles in marine enviroment[J]. Journal of the Chinese Ceramic Society, 2014, 42(4):476485. [8]CRANK J. The mathematics of diffucion[M]. 2nd ed. London: Oxford University Press, 1975. [9]VU K, STEWART M G. Structural reliability of concrete bridges including improved chlorideinduced corrosion models[J]. Structural Safety, 2000, 22(4): 313333. [10]YU S W, SERGI G, PAGE C L. Ionic diffusion across an interface between chloridefree and chloridecontaining cementitious materials[J]. Magazine of Concrete Research, 1993, 45(165): 257261. [11]LIU Y P. Modeling the timetocorrosion cracking of the cover concrete in chloride contaminated reinforced concrete structures[D]. Virginia, USA: Virginia Polytechnic Institute and State University, 1996. [12]岳著文, 李镜培, 邵伟. PHC管桩劈裂试验裂缝开展特征[J]. 哈尔滨工业大学学报, 2014, 46(10): 8186. YUE Zhuwen, LI Jingpei, SHAO Wei. Crack development characteristic of PHC pipe pile in splitting test [J]. Journal of Harbin Institute of Technology, 2014, 46(10): 8186. [13]王少杰, 刘福胜, 段绪胜,等. 砂浆试样单轴受压应力应变全曲线试验研究[J]. 混凝土, 2010(7): 110112. WANG Shaojie, LIU Fusheng, DUAN Xusheng, et al. Experimental investigation on complete stressstrain curve of mortar sample under uniaxial loading[J]. Concrete, 2010(7): 110112. [14]马一平, 朱蓓蓉, 谈慕华. 水泥砂浆塑性抗拉强度与收缩开裂的关系[J]. 建筑材料学报, 2003, 6(1): 2024. MA Yiping, ZHU Beirong, TAN Muhua. Plastic tensile strength and mechanism of plastic shrinkage cracking for cement mortars[J]. Journal of Building Materials, 2003, 6(1): 2024. [15]GB 500102010, 混凝土结构设计规范[S]. [16]AMEY S L, JOHNSON D A, MILTENBERGER M A, et al. Predicting the service life of concrete marine structures: An environmental methodology[J]. Aci Structural Journal, 1998, 95(2): 205214. [17]陈正, 杨绿峰, 冯庆革, 等. 高性能混凝土的氯离子扩散及服役寿命研究[J]. 建筑材料学报, 2010, 13(2):222227. CHEN Zheng, YANG Lüfeng, FENG Qingge, et al. Study of chloride dif fusion of highperformance concrete and is service life by the boundary element method[J]. Journal of Building Materials, 2010, 13(2): 222227. [18]姬永生, 袁迎曙, 宋萌, 等. 不同锈蚀条件下混凝土内钢筋锈蚀物膨胀性能比较和机理分析[J]. 北京工业大学学报, 2011, 37(11): 16771683. JI Yongsheng, YUAN Yingshu, SONG Meng, et al. Volume expansion characteristic and mechanism of rebar corrosion products in concrete with different corrosion approaches[J]. Journal of Beijing University of Technology, 2011, 37(11): 16771683. [19]GB 134762009, 先张法预应力混凝土管桩[S]. [20]王显利. 氯离子侵蚀的钢筋混凝土结构锈蚀损伤[D]. 大连: 大连理工大学土木工程学院. 2008. |
[1] | 苏雨临, 连冠, 张大骋. 等效电路模型法预测动态工况下微型直接甲醇燃料电池剩余使用寿命[J]. 上海交通大学学报, 2024, 58(10): 1575-1584. |
[2] | 毕航铭. 316L不锈钢管道腐蚀原因分析及预防措施[J]. 海洋工程装备与技术, 2023, 10(4): 30-35. |
[3] | 舒俊清, 许昱晖, 夏唐斌, 潘尔顺, 奚立峰. 面向多故障模式的多尺度相似性集成寿命预测[J]. 上海交通大学学报, 2022, 56(5): 564-575. |
[4] | 吴灵杰,寇新建,周拥军,蒋萌. 既有混凝土码头的时变氯离子扩散过程[J]. 上海交通大学学报, 2017, 51(4): 444-. |
[5] | 吴锋1,2,汪冬冬2,时蓓铃2,龚景海1,富坤2. 后张法预应力混凝土大直径管桩耐久性退化分析[J]. 上海交通大学学报(自然版), 2016, 50(01): 158-164. |
[6] | 吴浩宁a,李科a,黄醒春a,b. 采用预应力高强度混凝土管桩法处理吹填土地基的加固效果[J]. 上海交通大学学报(自然版), 2013, 47(09): 1430-1434. |
[7] | 梁志荣, 李忠诚, 李成巍. 深松软地基条件下工程桩事故分析及对策[J]. 上海交通大学学报(自然版), 2012, 46(01): 69-72. |
阅读次数 | ||||||
全文 |
|
|||||
摘要 |
|
|||||