轴压比对圆中空夹层钢管混凝土抗撞性能的影响分析
引用文献：
郭志辉 王蕊 赵晖. 轴压比对圆中空夹层钢管混凝土抗撞性能的影响分析[J]. 建筑结构，2023，48（12）：36-42，73.
GUO Zhihui WANG Rui ZHAO Hui. Influence analysis of axial load ratio on impact resistance of circular concrete filled double-skin steel tubular[J]. Building Structure，2023,48（12）：36-42，73.
摘要：轴压比是影响圆中空夹层钢管混凝土构件抗撞性能的一个重要参数，因此，在前期试验研究基础上，采用ABAQUS建立了圆中空夹层钢管混凝土构件在侧向撞击和轴力荷载耦合作用下的有限元分析模型，研究了不同轴压比下构件抗撞工作机理，并以名义截面含钢率、空心率与材料强度为主要参数，重点分析了轴压比对构件抗撞性能的影响。结果表明：在侧向撞击和轴力荷载耦合作用下构件主要发生受弯破坏，外钢管与混凝土的塑性变形是构件的主要耗能机制；当轴压比从0增大到0.5时，构件的抗撞性能先增强后减弱；随着构件名义截面含钢率、空心率和外钢管屈服强度的增大及混凝土强度的减小，轴压比对构件抗撞性能的有利影响范围分别减小约75%、57%、15%和18%。
关键词：圆中空夹层钢管混凝土；轴压比；抗撞性能；空心率；
基金：山西省优青研究基金项目(201701D211006)。
尊敬的用户，本篇文章需要2元，点击支付交费后阅读
限时优惠福利：领取VIP会员
全年期刊、会议视频
全部免费！培训视频打折！
全年期刊、会议视频
全部免费！培训视频打折！
参考文献[1] 陶忠，韩林海，黄宏.圆中空夹层钢管混凝土柱力学性能研究[J].土木工程学报，2004,37(10):41-51.
[2] 黄宏.中空夹层钢管混凝土压弯构件的力学性能研究[D].福州：福州大学，2006.
[3] 陶忠，于清.新型组合结构柱-试验、理论与方法[M].北京：科学出版社，2006.
[4] 何益斌，李毅，郭健，等.中空夹层钢管混凝土柱与钢-混凝土组合梁节点抗震性能试验研究[J].建筑结构学报，2012,33(7):106-115.
[5] 何媛媛，董江峰，王清远.高温后中空夹层钢管再生混凝土短柱的加固性能研究与分析[J].建筑结构，2020,50(6):81-85,24.
[6] WANG RUI,HAN LINHAI,ZHAO XIAOLING,et al.Experimental behavior of concrete filled double steel tubular (CFDST)members under low velocity drop weight impact[J].Thin-Walled Structures,2015,97:279-295.
[7] WANG RUI,HAN LINHAI,ZHAO XIAOLIN,et al.Analytical behavior of concrete filled double steel tubular (CFDST)members under lateral impact[J].Thin-Walled Structures,2015,101:129-140.
[8] ZHAO HUI,WANG RUI,HOU CHUANGCHUANG,et al.Performance of circular CFDST members with external stainless steel tube under transverse impact loading [J].Thin-Walled Structures,2019,145:106380.1-106380.13.
[9] AGHDAMY S,THAMBIRATNAM D P,DHANASEKAR M.Experimental investigation on lateral impact response of concrete-filled double-skin tube columns using horizontal-impact-testing system[J].Experimental Mechanics,2016,56(7):1133-1153.
[10] WANG YU,QIAN XUDONG,LIEW J Y R,et al.Experimental behavior of cement filled pipe-in-pipe composite structures under transverse impact[J].International Journal of Impact Engineering,2014,72:1-16.
[11] 中空夹层钢管混凝土结构技术规程：T/CCES 7—2020[S].北京：中国建筑工业出版社，2020.
[12] 输电线路中空夹层钢管混凝土杆塔技术规范：T/CEC 185—2018[S].北京：中国电力出版社，2018.
[13] 钢管再生混凝土结构技术规程：T/CECS 625—2019[S].北京：中国计划出版社，2019.
[14] 韩林海，宋天诣，周侃.钢-混凝土组合结构抗火设计原理[M].2版.北京：科学出版社，2017.
[15] JONES N.Structural impact[M].Cambridge UK:Cambridge University Press,1997.
[16] Fédération internationale du béton model code:CEB-FIP[S].Switzerland:Lausanne,2010.
[2] 黄宏.中空夹层钢管混凝土压弯构件的力学性能研究[D].福州：福州大学，2006.
[3] 陶忠，于清.新型组合结构柱-试验、理论与方法[M].北京：科学出版社，2006.
[4] 何益斌，李毅，郭健，等.中空夹层钢管混凝土柱与钢-混凝土组合梁节点抗震性能试验研究[J].建筑结构学报，2012,33(7):106-115.
[5] 何媛媛，董江峰，王清远.高温后中空夹层钢管再生混凝土短柱的加固性能研究与分析[J].建筑结构，2020,50(6):81-85,24.
[6] WANG RUI,HAN LINHAI,ZHAO XIAOLING,et al.Experimental behavior of concrete filled double steel tubular (CFDST)members under low velocity drop weight impact[J].Thin-Walled Structures,2015,97:279-295.
[7] WANG RUI,HAN LINHAI,ZHAO XIAOLIN,et al.Analytical behavior of concrete filled double steel tubular (CFDST)members under lateral impact[J].Thin-Walled Structures,2015,101:129-140.
[8] ZHAO HUI,WANG RUI,HOU CHUANGCHUANG,et al.Performance of circular CFDST members with external stainless steel tube under transverse impact loading [J].Thin-Walled Structures,2019,145:106380.1-106380.13.
[9] AGHDAMY S,THAMBIRATNAM D P,DHANASEKAR M.Experimental investigation on lateral impact response of concrete-filled double-skin tube columns using horizontal-impact-testing system[J].Experimental Mechanics,2016,56(7):1133-1153.
[10] WANG YU,QIAN XUDONG,LIEW J Y R,et al.Experimental behavior of cement filled pipe-in-pipe composite structures under transverse impact[J].International Journal of Impact Engineering,2014,72:1-16.
[11] 中空夹层钢管混凝土结构技术规程：T/CCES 7—2020[S].北京：中国建筑工业出版社，2020.
[12] 输电线路中空夹层钢管混凝土杆塔技术规范：T/CEC 185—2018[S].北京：中国电力出版社，2018.
[13] 钢管再生混凝土结构技术规程：T/CECS 625—2019[S].北京：中国计划出版社，2019.
[14] 韩林海，宋天诣，周侃.钢-混凝土组合结构抗火设计原理[M].2版.北京：科学出版社，2017.
[15] JONES N.Structural impact[M].Cambridge UK:Cambridge University Press,1997.
[16] Fédération internationale du béton model code:CEB-FIP[S].Switzerland:Lausanne,2010.
Influence analysis of axial load ratio on impact resistance of circular concrete filled double-skin steel tubular
Abstract: Axial load ratio is an important parameter that affects the impact resistance of circular concrete filled double-skin steel tubular(CFDST) members. Therefore, based on preliminary experiments, finite element analysis(FEA) model of CFDST combined lateral impact and axial load was established using ABAQUS. The working mechanism of CFDST members with different axial load ratio under impact load was investigated. With nominal cross-sectional steel ratio, hollow ratio and material strength as the main parameters, the influence of axial load ratio on the impact resistance was emphasisly analyzed. The results show that under combined lateral impact and axial load, the members failed in flexural mode. The main energy dissipation mechanism of members was the plastic deformation of outer steel tube and concrete. As the axial load ratio increased from 0 to 0.5, the impact resistance of members increased first and then decreased. With the increase of nominal cross-sectional steel ratio, hollow ratio and yield strength of external steel tube, and the decrease of concrete strength, the favorable influence range of axial load ratio on the impact resistance of members decrease by about 75%, 57%, 15% and 18% respectively.
Keywords: circular concrete filled double-skin steel tubular; axial load ratio; impact resistance; hollow ratio
502
0
0