圆钢管加固直角突变式钢吊车梁的三维裂纹扩展及疲劳性能

doi:10.12066/j.issn.1007-2861.2480

上海大学学报(自然科学版) ›› 2025, Vol. 31 ›› Issue (6): 961-977.doi: 10.12066/j.issn.1007-2861.2480

圆钢管加固直角突变式钢吊车梁的三维裂纹扩展及疲劳性能

胡宝琳¹, 徐宇豪¹, 左志远¹, 庄继勇², 周磊¹

1. 上海大学力学与工程科学学院, 上海 200444;
2. 宝武装备智能科技有限公司, 上海 201900

收稿日期:2022-12-30 出版日期:2025-12-31 发布日期:2025-12-31
通讯作者: 胡宝琳(1980-),男,博士,研究方向为结构抗震、结构加固及装配式建筑. E-mail:hubaolintz@163.com
基金资助:
国家科技重大专项资助项目(2018ZX06001001);国家自然科学基金资助项目(52078287)

Three-dimensional crack growth and fatigue performance of steel crane girder with abrupt right-angled change reinforced with round steel tube

HU Baolin¹, XU Yuhao¹, ZUO Zhiyuan¹, ZHUANG Jiyong², ZHOU Lei¹

1. School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China;
2. Baowu Equipment Intelligent Technology Co., Ltd., Shanghai 201900, China

Received:2022-12-30 Online:2025-12-31 Published:2025-12-31

摘要/Abstract

摘要： 针对直角突变式钢吊车梁疲劳细节Ⅰ发生的疲劳破坏,提出了一种经济有效且具有工程可实施性的圆钢管加固方法,即在吊车梁变截面部位焊接圆形钢管,分別与插入板和端封板进行焊接连接.为了评估加固后钢吊车梁的疲劳性能,基于线弹性断裂力学进行了三维裂纹扩展模拟.结果表明:该方法可以改善直角突变式钢吊车梁的局部应力状态;相较于加固前,疲劳细节Ⅰ处的应力幅降低了近40%,钢吊车梁的疲劳寿命提高了225.5万次.通过参数分析,进一步探讨了圆钢管不同外径及壁厚对加固效果和经济效益的影响规律,为吊车梁疲劳加固工程的应用提供了参考依据.

关键词: 直角突变式, 吊车梁, 圆钢管加固, 三维裂纹扩展, 疲劳性能

Abstract: In view of the fatigue damage to the fatigue detail I of the steel crane girder with abrupt right-angled change, an economic, effective, and feasible round steel tube reinforcement method was proposed. Specifically, a round steel tube was welded at the variable section of the crane girder, and a welding connection with the insert plate and the end sealing plate was performed. In order to evaluate the fatigue performance of the reinforced steel crane girder, a three-dimensional crack growth simulation was conducted based on linear elastic fracture mechanics. The results showed that this method could improve the local stress state of the steel crane girder with abrupt right-angled change. Compared with that before reinforcement, the stress amplitude at the fatigue detail I had decreased by nearly 40%, and the fatigue life of the steel crane girder had increased by 2 255 000 times. Through parameter analysis, the influence laws of different outer diameters and wall thicknesses of the round steel tube on the reinforcement effects and economic benefits were further explored, providing a reference basis for the application of crane girder fatigue reinforcement projects.

Key words: abrupt right-angled change, crane girder, round steel tube reinforcement, three-dimensional crack growth, fatigue performance

中图分类号:

TU391

胡宝琳, 徐宇豪, 左志远, 庄继勇, 周磊. 圆钢管加固直角突变式钢吊车梁的三维裂纹扩展及疲劳性能[J]. 上海大学学报(自然科学版), 2025, 31(6): 961-977.

HU Baolin, XU Yuhao, ZUO Zhiyuan, ZHUANG Jiyong, ZHOU Lei. Three-dimensional crack growth and fatigue performance of steel crane girder with abrupt right-angled change reinforced with round steel tube[J]. Journal of Shanghai University（Natural Science Edition）, 2025, 31(6): 961-977.

参考文献

[1] 赵晓青, 岳清瑞, 郭小华, 等. 钢吊车梁疲劳评估欠载效应的等效系数法研究[J]. 建筑结构学报, 2021, 42(1): 179-188.
[2] 柏炯. 某大型工业厂房重型吊车运行荷载实测研究[J]. 振动与冲击, 2015, 34(1): 124-129.
[3] 杨佑发, 陈前, 雷鸣. 在役钢结构吊车梁疲劳可靠性分析[J]. 振动与冲击, 2020, 39(9): 165-172, 193.
[4] Albrecht P. Fatigue reliability analysis of highway bridges [J]. Transportation Research Record, 1982(871): 56248344.
[5] Albrecht P, Yazdani N. Risk analysis of extending bridge service life of steel bridges [D]. Maryland: University of Maryland, College Park, 1986.
[6] Abdul-Aziz A. Assessment of crack growth in a space shuttle main engine first-stage highpressure fuel turbopump blade [J]. Finite Elements in Analysis & Design, 2002, 39(1): 1-15.
[7] Bergara A, Dorado J I, Martín-Meizoso A, et al. Fatigue crack propagation at aeronautic engine vane guides using the extended finite element method (XFEM) [J]. Mechanics of Advanced Materials and Structures, 2021(12): 146249150.
[8] 陈龙, 黄天立, 周浩. 基于比例型Paris公式和逆高斯过程的金属疲劳裂纹扩展随机模型[J]. 工程力学, 2021, 38(10): 238-247.
[9] 朱劲松, 郭耀华. 正交异性钢桥面板疲劳裂纹扩展机理及数值模拟研究[J]. 振动与冲击, 2014, 33(14): 40-47, 71.
[10] 张智轩, 石多奇, 杨晓光. 含销钉孔边裂纹的某压气机轮盘裂纹扩展分析[J]. 航空动力学报, 2016, 31(3): 567-574.
[11] 霍智宇. 基于断裂力学的钢桥面板疲劳裂纹扩展研究[D]. 北京: 北方工业大学, 2016.
[12] 张清华, 郭亚文, 李俊, 等. 钢桥面板纵肋双面焊构造疲劳裂纹扩展特性研究[J]. 中国公路学报, 2019, 32(7): 49-56, 110.
[13] 刘鹤, 杨晓光, 石多奇. 一种用于航空发动机热端部件三维裂纹行为分析的数值方法[J]. 机械工程学报, 2019, 55(13): 102-112.
[14] Berg N V D, Xin H, Veljkovic M. Effects of residual stresses on fatigue crack propagation of an orthotropic steel bridge deck [J]. Materials & Design, 2021(198): 109294.
[15] 郭耀杰, 胡宝琳. 吊车梁的校核分析及加固处理[J]. 建筑结构, 2004(7): 31-32, 14.
[16] 晏金炜, 朱淳, 宣伟慧. 万吨水压机车间新增特重级吊车加固设计[J]. 工业建筑, 2011, 41(7): 133-137.
[17] Chen T, Huang C, Hu L, et al. Experimental study on mixed-mode fatigue behavior of center cracked steel plates repaired with CFRP materials [J]. Thin-Walled Structures, 2019, 135(2): 486-493.
[18] 郑元鹏, 陈涛, 黄诚. CFRP加固紧凑拉伸钢试件的疲劳试验研究[J]. 复合材料学报, 2022, 39(11): 5192-5205.
[19] Jiao H, Mashiri F, Zhao X L. A comparative study on fatigue behaviour of steel beams retrofitted with welding, pultruded CFRP plates and wet layup CFRP sheets [J]. Thin-Walled Structures, 2012, 59(10): 144-152.
[20] Paris P, Erdogan F. A critical analysis of crack propagation laws [J]. Transactions of the ASME, 1963, 85(4): 528-533.
[21] Erdogan F, Sih G C. On the crack extension in plates under plane loading and transverse shear [J]. Journal of Basic Engineering, 1963, 85: 519-525.
[22] Palaniswamy K, Knauss W G. Propagation of a crack under general, in-plane tension [J]. International Journal of Fracture Mechanics, 1972, 8(1): 114-117.
[23] Sih G C. Strain energy density factor applied to mixed mode crack problems [J]. International Journal of Fracture, 1974, 10(3): 305-321.
[24] British Standard Institution. BS 7910 Guide on methods for assessing the acceptability of flaws in metallic structures [S]. London: British Standard Institution, 2005.
[25] 张彦华. 焊接力学与结构完整性原理[M]. 北京: 北京航空航天大学出版社, 2007.
[26] 徐格宁, 范小宁, 陆凤仪, 等. 起重机焊接箱形梁疲劳可靠度及初始裂纹的蒙特卡罗仿真[J]. 机械工程学报, 2011, 47(20): 41-44.
[27] 赵晓青, 幸坤涛, 常好诵, 等. 钢吊车梁直角式突变支座疲劳性能研究[J]. 工业建筑, 2019, 49(5): 166-169, 102.

圆钢管加固直角突变式钢吊车梁的三维裂纹扩展及疲劳性能

Three-dimensional crack growth and fatigue performance of steel crane girder with abrupt right-angled change reinforced with round steel tube

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