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Abstract

To address the issue of excessively large computational models in the numerical simulation of U-shaped stiffened plates in large-span flat steel box girder main girders, this paper proposes a finite element calculation theory using equivalent stiffened plate elements and a simplified method for U-shaped stiffened plates. By simplifying the U-shaped small box ribs in U-shaped stiffened plates into equivalent stiffening strips, the transverse stiffness of the cover plate is redistributed, and the effect of equivalent stiffeners on the stress of the plates is calculated. Stability analysis was conducted using Fortran language developed on the Ansys platform, and the results were compared with those from full shell finite element models. The results show that, compared to full shell finite element models, the proposed equivalent stiffened plate element model yields a relative error of only 5.9% in deflection calculations and approximately 2% in buckling factors for lower-order modes. In addition, the time required to calculate the first five modes using the equivalent stiffened plate element model is about one-third of that required for the full shell finite element model.

Publication Date

5-11-2023

DOI

10.14048/j.issn.1671-2579.2023.02.026

First Page

144

Last Page

149

Submission Date

March 2025

Reference

[1] 余鸿彬, 谭宗伟, 夏腾. 某高速公路互通连续钢箱梁结构计算分析研究[J]. 中外公路, 2020, 40(3): 160-164. YU Hongbin, TAN Zongwei, XIA Teng. Computational analysis of a continuous steel box-girder of a highway interchange[J]. Journal of China & Foreign Highway, 2020, 40(3): 160-164. [2] 方金, 范亮. 高温混合料摊铺过程中的扁平钢箱梁温度效应分析[J]. 中外公路, 2021, 41(2): 214-219. FANG Jin, FAN Liang. Thermosetting coupling effect analysis of flat steel box girder during paving high temperature mixture[J]. Journal of China & Foreign Highway, 2021, 41(2): 214-219. [3] 赵金霞, 白凯, 廖原. 嘉鱼长江公路大桥钢箱梁设计[J]. 中外公路, 2020, 40(5): 172-176. ZHAO Jinxia, BAI Kai, LIAO Yuan. Design of steel box-girder for Jiayu Yangtze River highway bridge[J]. Journal of China & Foreign Highway, 2020, 40(5): 172-176. [4] 张雅俊, 林立华, 刘玉擎. Q420钢U肋加劲板轴压承载性能试验研究[J]. 同济大学学报(自然科学版), 2021, 49(12): 1754-1760, 1788. ZHANG Yajun, LIN Lihua, LIU Yuqing. Experimental study on ultimate axial compression capacity of Q420 steel U-rib stiffened plates[J]. Journal of Tongji University (Natural Science), 2021, 49(12): 1754-1760, 1788. [5] 张迅, 王曦阳, 刘蕊, 等. U肋加劲板的声振特性研究[J]. 中国公路学报, 2020, 33(7): 76-85. ZHANG Xun, WANG Xiyang, LIU Rui, et al. Vibro-acoustic characteristics of U-rib stiffened slabs[J]. China Journal of Highway and Transport, 2020, 33(7): 76-85. [6] 甘露, 宗周红, 李明鸿, 等. 爆炸作用下U形加劲肋加劲钢板结构的动态响应与破坏模式[J]. 东南大学学报(自然科学版), 2020, 50(2): 207-214. GAN Lu, ZONG Zhouhong, LI Minghong, et al. Dynamic response and failure mode of U-shaped stiffener stiffened steel plate under blast loading[J]. Journal of Southeast University (Natural Science Edition), 2020, 50(2): 207-214. [7] 马牛静, 王荣辉, 朴泷. 港珠澳大桥通航孔钢箱梁桥面板的静动力特性研究[J]. 应用基础与工程科学学报, 2017, 25(6): 1261-1272. MA Niujing, WANG Ronghui, PIAO Long. Static and dynamic properties of the bridge deck of steel box girder of navigable span of Hong Kong-Zhuhai-Macao bridge[J]. Journal of Basic Science and Engineering, 2017, 25(6): 1261-1272. [8] 马牛静, 赵国栋. 钢箱梁正交异性板局部振动特性研究[J]. 桥梁建设, 2017, 47(1): 71-75. MA Niujing, ZHAO Guodong. Investigation of local vibration characteristics of orthotropic plate of steel box girder[J]. Bridge Construction, 2017, 47(1): 71-75. [9] 赵秋, 翟战胜, 陈宝春. 混合强度U形肋加劲钢板受压稳定试验研究[J]. 建筑结构学报, 2016, 37(7): 54-63. ZHAO Qiu, ZHAI Zhansheng, CHEN Baochun. Experimental study on compression stability of hybrid steel plate stiffened with U-ribs[J]. Journal of Building Structures, 2016, 37(7): 54-63. [10] 赵秋, 翟战胜, 陈宝春. 混合强度U形肋加劲钢板受压稳定试验研究[J]. 建筑结构学报, 2016, 37(7): 54-63. ZHAO Qiu, ZHAI Zhansheng, CHEN Baochun. Experimental study on compression stability of hybrid steel plate stiffened with U-ribs[J]. Journal of Building Structures, 2016, 37(7): 54-63. [11] 赵秋, 张骏超, 林楚, 等. 混合钢U肋加劲板受压整体稳定承载力数值模拟与计算方法[J]. 建筑科学与工程学报, 2020, 37(3): 45-54. ZHAO Qiu, ZHANG Junchao, LIN Chu, et al. Numerical simulation and calculation method of hybrid steel U-rib stiffened plate’s compression overall stability bearing capacity[J]. Journal of Architecture and Civil Engineering, 2020, 37(3): 45-54. [12] 赵秋, 张骏超, 翟战胜, 等. U肋加劲板受压力学性能分析[J]. 铁道建筑, 2019, 59(5): 15-21. ZHAO Qiu, ZHANG Junchao, ZHAI Zhansheng, et al. Analysis of compression mechanical behavior for U-rib stiffened plate[J]. Railway Engineering, 2019, 59(5): 15-21. [13] 王应良, 李小珍, 强士中. 梯形加劲肋正交异性板钢桥面分析的等效格子梁法[J]. 西南交通大学学报, 1999, 34(5): 545-549. WANG Yingliang, LI Xiaozhen, QIANG Shizhong. Equivalent grid beam method for the analysis of orthotropic steel plate bridge deck with trapezoidal longititudal ribs[J]. Journal of Southwest Jiaotong University, 1999, 34(5): 545-549. [14] 张帅. Stokes特征值问题的自适应反迭代及子空间迭代有限元算法[D]. 湘潭: 湘潭大学, 2019. ZHANG Shuai. Adaptive inverse iteration and subspace iteration finite element algorithm for Stokes eigenvalue problem[D]. Xiangtan: Xiangtan University, 2019.

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