不同开孔方案下钢板抗剪能力退化规律研究
李鹏飞 , 赵炳震 , 李阳 , 杜颜胜 , 张霓 , 赵中伟
建筑钢结构进展 ›› 2025, Vol. 27 ›› Issue (08) : 54 -64.
不同开孔方案下钢板抗剪能力退化规律研究
Research on the Degradation Law of Shear Capacity of Steel Plates under Different Hole Opening Schemes
本文采用ANSYS有限元软件对点蚀钢板的抗剪承载力进行研究,通过前期试验结果验证了所建立有限元模型的准确性,基于此模型研究了开孔位置、开孔形状、径深比和材料强度等参数对钢板抗剪承载力折减的影响,并对其折减因子的变化规律进行了研究。研究结果表明:不同形状的开孔对抗剪承载力虽有影响,但影响幅度较小,不同开孔形状的模型其抗剪承载力的退化规律一致;模型的抗剪承载力折减因子会随着开孔位置的变化而变化,模型中心为最危险的开孔位置,其折减因子最小,处于模型四个角开孔位置的折减因子最大;改变径深比对模型抗剪承载力的退化影响不大,开孔体积率能更准确地体现开孔程度对抗剪承载力的退化影响;模型的抗剪承载力折减因子与材料强度无关。通过响应曲面法进行回归分析,拟合出归一化后开孔位置的横、纵坐标以及开孔面积比与钢板抗剪承载力折减因子的回归方程。研究结果可为开孔钢板抗剪性能退化程度的评估提供参考。
In this paper, ANSYS finite element software is used to study the shear capacity of pitted steel plate, and the accuracy of established numerical model is verified through previous experimental results. Based on this model, the influence of parameters such as opening position, opening shape, diameter to depth ratio and material strength on the reduction of the shear capacity of steel plate is studied. And the change rule of its reduction factor is studied. The results show that the opening shapes have an effect on the shear strength, but the effect is small. The degradation of the shear strength of specimens with different opening shapes is the same. The reduction factor of the shear strength of the models will change with the opening position. The center of the models is the most dangerous opening position with the smallest reduction factor, and the opening position at the four corners of the models result in the largest reduction factor. The ratio of diameter to depth can not clearly represent the degradation law of shear capacity of the models, but the opening volume rate can better represent the effect of opening degree on the degradation of shear. The reduction factor of shear capacity is independent of material strength. Through the response surface method, a regression analysis is carried out to fit an equation relating the transverse and longitudinal coordinates of the normalized opening position, the ratio of the opening area and the reduction factor of the shear capacity of the steel plate. The research results can provide a reference for evaluating the degradation degree of shear properties of steel plates with openings.
| [1] |
SABOURI-GHOMI S,MAMAZIZI S.Experimental investigation on stiffened steel plate shear walls with two rectangular openings[J].Thin-Walled Structures,2015,86:56-66.DOI:10.1016/j.tws.2014.10.005. |
| [2] |
VALIZADEH H,SHEIDAII M,SHOWKATI H.Experimental investigation on cyclic behavior of perforated steel plate shear walls[J].Journal of Constructional Steel Research,2012,70:308-316.DOI:10.1016/j.jcsr.2011.09.016. |
| [3] |
AFSHARI M J,GHOLHAKI M.Shear strength degradation of steel plate shear walls with optional located opening[J].Archives of Civil and Mechanical Engineering,2018,18(4):1547-1561.DOI:10.1016/j.acme.2018.06.012. |
| [4] |
ZHAO Z W,GAO T,LIU J X,et al.Local bearing capacity of steel beam webs with random pit corrosion[J].Structures,2023,48:1259-1270.DOI:10.1016/j.istruc.2023.01.044. |
| [5] |
ZHAO Z W,ZHANG H W,XIAN L N,et al.Tensile strength of Q345 steel with random pitting corrosion based on numerical analysis[J].Thin-Walled Structures,2020,148:106579.DOI:10.1016/j.tws.2019.106579. |
| [6] |
李安邦,徐善华.锈蚀对钢板表面特性及CFRP板-锈蚀钢板界面黏结性能的影响[J].复合材料学报,2022,39(2):746-758.DOI:10.13801/j.cnki.fhclxb.20210422.001. |
| [7] |
LI Anbang,XU Shanhua.Effect of corrosion on the surface properties of steel plate and interfacial bonding properties between CFRP plate and corroded steel plate[J].Acta Materiae Compositae Sinica,2022,39(2):746-758.DOI:10.13801/j.cnki.fhclxb.20210422.001.(in Chinese) |
| [8] |
ZHAO Z W,LIU J X,WANG B,et al.Post-buckling shear capacity of the corroded end panels of H-shaped steel beams[J].Thin-Walled Structures,2023,184:110499.DOI:10.1016/j.tws.2022.110499. |
| [9] |
AHN J H,CHEUNG J H,LEE W H,et al.Shear buckling experiments of web panel with pitting and through-thickness corrosion damage[J].Journal of Constructional Steel Research,2015,115:290-302.DOI:10.1016/j.jcsr.2015.08.032. |
| [10] |
BAO A,GUILLAUME C,SATTER C,et al.Testing and evaluation of web bearing capacity of corroded steel bridge girders[J].Engineering Structures,2021,238:112276.DOI:10.1016/j.engstruct.2021.112276. |
| [11] |
MA H B,YANG Y,HE Z,et al.Experimental study on mechanical properties of steel under extreme cyclic loading considering pitting damage[J].Ocean Engineering,2019,186:106091.DOI:10.1016/j.oceaneng.2019.05.073. |
| [12] |
王仁华,方媛媛,林振东,点蚀损伤下海洋平台结构剩余强度的多尺度分析方法[J].工程力学,2016,33(1):238-245.DOI:10.6052/j.issn.1000-4750.2014.06.0524. |
| [13] |
WANG Renhua,FANG Yuanyuan,LIN Zhendong,et al.Multi-scale analysis of residual strength of offshore platforms with pitting corrosion[J].Engineering Mechanics,2016,33(1):238-245.DOI:10.6052/j.issn.1000-4750.2014.06. 0524.(in Chinese) |
| [14] |
ZHANG Y,HUANG Y,ZHANG Q,et al.Ultimate strength of hull structural plate with pitting corrosion damnification under combined loading[J].Ocean Engineering,2016,116:273-285.DOI:10.1016/j.oceaneng.2016.02.039. |
| [15] |
WEN Z Y,WEI X,XIAO L,et al.Experimental evaluation of the shear buckling behaviors of corrugated webs with artificial corrosion pits[J].Thin-Walled Structures,2019,141:251-259.DOI:10.1016/j.tws.2019.04.034. |
| [16] |
FENG L,HE J K,HU L C,et al.A parametric study on effects of pitting corrosion on steel plate’s ultimate strength[J].Applied Ocean Research,2020,95:102026.DOI:10.1016/j.apor. 2019. 102026. |
| [17] |
FENG L,HU L C,CHEN X G,et al.A parametric study on effects of pitting corrosion on stiffened panel’s ultimate strength[J].International Journal of Naval Architecture and Ocean Engineering,2020,12:699-710.DOI:10.1016/j.ijnaoe.2020.08.001. |
| [18] |
王伟,李启才.不同参数对开圆洞钢板剪力墙抗震性能的影响[J].常州工学院学报,2019,32(5):6-14.DOI:10.3969/j.issn.1671-0436.2019.05.003. |
| [19] |
WANG Wei,LI Qicai.The influence of different parameters on the seismic performance of steel plate shear wall[J].Journal of Changzhou Institute of Technology,2019,32(5):6-14.DOI:10.3969/j.issn.1671-0436.2019.05.003.(in Chinese) |
| [20] |
杨斌,赵炳震,杜颜胜,局部开孔对矩形钢板抗剪承载能力影响研究[J].建筑钢结构进展,2025,27(6):35-43.DOI:10.13969/j.jzgjgjz.20240117001. |
| [21] |
YANG Bin,ZHAO Bingzhen,DU Yansheng,et al.Investigation on the influence of local opening on shear capacity of rectangular steel plates[J].Progress in Steel Building Structures,2025,27(6):35-43.DOI:10.13969/j.jzgjgjz.20240117001.(in Chinese) |
| [22] |
PAIK J K,KIM B J,SEO J K.Methods for ultimate limit state assessment of ships and ship-shaped offshore structures:Part I:Unstiffened plates[J].Ocean Engineering,2008,35(2):261-270.DOI:10.1016/j.oceaneng.2007.08.004. |
中国博士后科学基金(2021M690033)
陕西省交通运输厅交通科研项目(24-54K)
陕西省住建厅科技计划(2023-K21)
/
| 〈 |
|
〉 |