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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

39卷

期数:

2022年03期

页码:

127-138

栏目:

出版日期:

2022-05-30

文章信息/Info

Title:

Numerical Simulation Study of Hot-rolled H-steel Beam Under Impact Loading

文章编号:

1673-2049(2022)03-0127-12

作者:

邓小芳,蒋琳,靳龙梅,曾榕,李治

(桂林理工大学 土木与建筑工程学院,广西 桂林 541004)

Author(s):

DENG Xiao-fang, JIANG Lin, JIN Long-mei, ZENG Rong, LI Zhi

(College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, Guangxi, China)

关键词:

H型钢梁;  抗冲击性能;  数值模拟;  破坏形式;  冲击条件

Keywords:

H-steel beam;  impact resistance;  numerical simulation;  failure mode;  impact condition

分类号:

TU392

DOI:

10.19815/j.jace.2021.04023

文献标志码:

A

摘要:

为了研究热轧H型钢梁在冲击荷载作用下的力学性能与破坏形式,对H型钢梁的冲击试验建立精细化有限元模型,再与试验结果进行对比,验证有限元模型的准确性。基于有限元模型分析冲击荷载作用下钢梁的荷载重分布和内力变化。之后开展拓展参数分析,研究钢材强度、锤头几何形状、有无局部加固、冲击位置、边界条件对钢梁抗冲击性能的影响。结果表明:冲击荷载作用下,钢梁出现局部屈曲,并在响应结束阶段承受不对称剪力,其主要破坏形式为局部屈曲和扭转变形; 提高钢材强度,相应钢梁整体抗冲击性能得到增强; 改变锤头几何形状,导致接触刚度改变,冲击力时程曲线出现变化; 在冲击区设有局部加固可以提高冲击区的刚度以及稳定性,钢梁抗冲击能力得到提升; 当冲击位置靠近支座时,冲击力出现至支座反力出现的时间间隔缩短,钢梁能更好地抵抗冲击荷载造成的破坏; 当钢梁边界条件由铰接改为刚接时,由于钢梁长度增加受惯性荷载影响增大,并且由于支座对梁体约束减弱,冲击力整体大幅降低,梁跨挠度增大。

Abstract:

In order to study the dynamics performance and failure mode of hot-rolled H-steel beam under impact load, a refined finite element model was established for the impact test of H-steel beam, and the accuracy of the finite element model was verified by comparing with the experimental results. Based on the finite element model, the load redistribution and internal force change of steel beam under impact load were analyzed. Then the extended parameter analysis was carried out to study the effects of steel strength, hammer head geometry, local reinforcement, impact position and boundary conditions on the impact resistance of steel beams. The results show that under the impact load, the steel beam appears local buckling and bears asymmetric shear at the end of the response stage. The main failure forms are local buckling and torsional deformation. When the steel strength is improved, the overall impact resistance of the steel beam is enhanced accordingly. The change of hammer head geometry leads to the change of contact stiffness and the change of impact force time history curve. When the impact zone is provided with local reinforcement, the stiffness and stability of the impact zone are improved, and the impact resistance of the steel beam is improved. When the impact position is closer to the support, the steel beam can better resist the damage caused by impact load because the time interval from the occurrence of impact force to the occurrence of support reaction is shortened. When the steel beam boundary condition is changed from hinged to rigid connection, the influence of inertial load increases due to the increase of steel beam length, and the restraint of support to beam body is weakened, the overall impact force is greatly reduced and the beam span deflection is increased.

参考文献/References:

[1] 许 斌,曾 翔.冲击荷载作用下钢筋混凝土梁性能试验研究[J].土木工程学报,2014,47(2):41-51,61.
XU Bin,ZENG Xiang.Experimental Study on the Behaviors of Reinforced Concrete Beams Under Impact Loadings[J].China Civil Engineering Journal,2014,47(2):41-51,61.
[2]朱 翔,陆新征,杜永峰,等.外包钢管加固RC柱抗冲击试验研究[J].工程力学,2016,33(6):23-33.
ZHU Xiang,LU Xin-zheng,DU Yong-feng,et al.Experimental Study on Impact Resistance of Reinforced Concrete Columns Strengthened with Steel Jackets[J].Engineering Mechanics,2016,33(6):23-33.
[3]霍静思,胡开赢.RC梁冲击破坏机理试验研究与残余变形预测方法探讨[J].湖南大学学报(自然科学版),2017,44(1):112-117.
HUO Jing-si,HU Kai-ying.Failure Mechanism of RC Beams Under Impact Loading and Discussion on Prediction Methods of Residual Deflection[J].Journal of Hunan University(Natural Sciences),2017,44(1):112-117.
[4]金 浏,徐建东,张仁波,等.钢筋混凝土梁抗冲击性能研究的细观数值模拟方法[J].振动与冲击,2018,37(2):57-65.
JIN LIU,XU Jian-dong,ZHANG Ren-bo,et al.A Mesoscale Numerical Simulation Method for Anti-impact Performance of RC Beams[J].Journal of Vibration and Shock,2018,37(2):57-65.
[5]HUGHES B P,AI-DAFIRY H.Impact Energy Absorption at Contact Zone and Supports of Reinforced Plain and Fibrous Concrete Beams[J].Construction and Building Materials,1995,9(4):239-244.
[6]FUJIKAKE K,LI B,SOEUN S.Impact Response of Reinforced Concrete Beam and Its Analytical Evaluation[J].Journal of Structural Engineering,2009,135(8):938-950.
[7]SAATCI S,VECCHIO F J.Effects of Shear Mechanisms on Impact Behavior of Reinforced Concrete Beams[J].ACI Structural Journal,2009,106(1):78-86.
[8]KISHI N,MIKAMI H,MATSUOKA K G,et al.Impact Behavior of Shear-failure-type RC Beams Without Shear rebar[J].International Journal of Impact Engineering,2002,27(9):955-968
[9]LIU K,LIU B,VILLAVICENCIO R,et al.Assessment of Material Strain Rate Effects on Square Steel Plates Under Lateral Dynamic Impact Loads[J].Ships and Offshore Structures,2018,13(2):217-225.
[10]LIU B,GUEDES SOARES C.Effect of Strain Rate on Dynamic Responses of Laterally Impacted Steel Plates-science Direct[J].International Journal of Mechanical Sciences,2019,160:307-317.
[11]DO Q T,MUTTAQIE T,SHIN H K,et al.Dynamic Lateral Mass Impact on Steel Stringer-stiffened Cylinders[J].International Journal of Impact Engineering,2018,116:105-126.
[12]AL-THAIRY H,WANG Y C.A Numerical Study of the Behaviour and Failure Modes of Axially Compressed Steel Columns Subjected to Transverse Impact[J].International Journal of Impact Engineering,2011,38(8/9):732-744.
[13]MAKAREM F S,ABED F.Nonlinear Finite Element Modeling of Dynamic Localizations in High Strength Steel Columns Under Impact[J].International Journal of Impact Engineering,2013,52:47-61.
[14]陈鹏程,程 欣,弓 磊,等.不同宽厚比H形截面钢梁抗冲击性能[J].爆炸与冲击,2018,38(6):1378-1385.
CHEN Peng-cheng,CHENG Xin,GONG Lei,et al.Impact Resistance of H Shaped Beam with Various Width-to-thickness Ratios[J].Explosion and Shock Waves,2018,38(6):1378-1385.
[15]王 蕊,裴 畅.热轧H型钢梁在侧向冲击荷载作用下动力响应的参数分析[J].工程力学,2013,30(增):258-262.
WANG Rui,PEI Chang.Parametric Analysis of Dynamic Response of Hot-rolled H-shaped Steel Beam Under Lateral Impact Load[J].Engineering Mechanics,2013,30(S):258-262.
[16]乔惠云,罗才松,马永超,等.钢框架结构在坠落块体撞击作用下的动力效应分析[J].振动与冲击,2021,40(5):8-15.
QIAO Hui-yun,LUO Cai-song,MA Yong-chao,et al.Dynamic Effect Analysis of Steel Frame Structure Under Impact of Falling Block[J].Journal of Vibration and Shock,2021,40(5):8-15.
[17]HUO J S,ZHANG J Q,LIU Y Z,et al.Dynamic Behaviour and Catenary Action of Axially-restrained Steel Beam Under Impact Loading[J].Structures,2017,11:84-96.
[18]霍静思,张晋清,陈柏生,等.冲击荷载作用下热轧H型钢梁力学性能试验研究[J].建筑结构学报,2011,32(12):242-249.
HUO Jing-si,ZHANG Jin-qing,CHEN Bai-sheng,et al.Dynamic Behaviors of Hot-rolled Steel Beams Under Drop Weight Impact Loading[J].Journal of Building Structures,2011,32(12):242-249.
[19]WANG H T,HUO J S,LIU Y Z,et al.Dynamic Performance of Composite Beam-column Connections Subjected to Impact Loadings[J].Journal of Constructional Steel Research,2021,178(5):106498.
[20]SYMONDS P S.Survey of Methods of Analysis for Plastic Deformation of Structures Under Dynamic Loading[J].Ciencia E Tecnologia De Alimentos,1967,31(4):967-972.
[21]钢结构设计规范:GB 50017—2017[S].北京:中国建筑工业出版社,2017.
Standard for Design of Steel Structures:GB 50017—2017[S].Beijing:China Architecture & Building Press,2017.
[22]GOLDSTON M,REMENNIKOV A M,SHEIH N M.Experimental Investigation of the Behaviour of Concrete Beams Reinforced with GFRP Bars Under Static and Impact Loading[J]. Engineering Structures,2016,113:220-232.
[23]低合金高强度结构钢:GB/T 1591—2018[S].北京:中国标准出版社,2018.
High Strength Low Alloy Structural Steels:GB/T 1591—2018[S].Beijing:Standards Press of China,2018.
[24]贾鹏程,吴 昊,方 秦.基于CSC模型的UHPC构件侧向低速冲击分析[J].建筑结构学报,2021,42(8):169-182.
JIA Peng-cheng,WU Hao,FANG Qin.Low-velocity Lateral Impact Analyses of UHPC Members Based on CSC Model[J].Journal of Building Structures,2021,42(8):169-182.
[25]崔娟玲,郭昭胜,王 蕊,等.热轧H型钢柱侧向冲击试验研究[J].振动与冲击,2014,33(18):133-139.
CUI Juan-ling,GUO Zhao-sheng,WANG Rui,et al.Tests for Behavior of a Hot Rolled H-shaped Steel Column Under Lateral Impact[J].Journal of Vibration and Shock,2014,33(18):133-139.

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备注/Memo

备注/Memo:

收稿日期:2021-04-11
基金项目:国家自然科学基金优秀青年基金项目(52022024); 国家自然科学基金项目(51778153)
作者简介:邓小芳(1984-),女,湖北公安人,讲师,工学博士,E-mail:dengxiaofang@glut.edu.cn。

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更新日期/Last Update: 2022-05-30