HYSTERETIC PROPERTIES OF HIGH-STRENGTH-CONCRETE-FILLED HIGH-STRENGTH-SQUARE-STEEL-TUBE BEAM-COLUMNS
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摘要: 通过对6个高强方钢管高强混凝土压弯构件的往复荷载试验,变化参数为轴压比,研究该类构件的破坏形态、荷载-位移滞回曲线、荷载-位移骨架曲线和延性性能。并采用ABAQUS有限元分析软件,建立了适合高强方钢管高强混凝土压弯构件的数值模型,进一步分析钢材屈服强度、混凝土抗压强度、含钢率、轴压比和长细比等参数对构件承载能力的影响。研究结果表明:构件的承载能力随着钢材屈服强度、含钢率的提高而提高;随着长细比的增加而减小,核心混凝土抗压强度和轴压比对承载能力的影响均较小。
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关键词:
- 高强方钢管高强混凝土 /
- 轴压比 /
- 滞回性能 /
- 延性 /
- 承载力
Abstract: Cyclic test was conducted on six high-strength concrete filled high-strength square steel tube (HCFHST) beam-columns to study their hysteretic behaviors in this paper. The main parameter was the axial load ratio. The failure modes, the load versus displacement hysteretic curves, the load versus displacement envelope curves and the ductility of the beam-columns were studied. Additionally, numerical model was established by the numerical analysis software ABAQUS to study the influence of the parameters on the bearing capacity of the HCFHST beam-columns with different steel yield strengths, concrete compression strengths, steel ratio, axial load ratios and slenderness ratios. Test results indicated that increasing the steel yield strength and steel ratio could increase the bearing capacity. The bearing capacity decreased with the increase of slenderness ratio. Additionally, the changing of concrete compressive strength and axial load ratio had no obvious effect on the bearing capacity. -
冷发光, 王永海, 周永祥, 等. 高强混凝土的研究应用和发展趋势[J]. 商品混凝土, 2011(2):25-27. SHI G, ZHU X, BAN H. Material Properties and Partial Factors for Resistance of High-Strength Steels in China[J]. Journal of Constructional Steel Research, 2016, 121:65-79. 张素梅, 王玉银.圆钢管高强混凝土轴压短柱的破坏模式[J]. 土木工程学报, 2004, 37(9):1-10. 郭兰慧, 张素梅, 王玉银, 等. 矩形钢管高强混凝土中长柱轴压构件的试验研究与理论分析[J]. 工业建筑, 2005, 35(3):75-79. 陈博文, 李帼昌, 杨志坚, 等. 高强方钢管高强混凝土短柱轴压性能[J]. 工业建筑, 2017, 47(3):151-156. LIEW J Y R, XIONG M, XIONG D. Design of Concrete Filled Tubular Beam-Columns with High Strength Steel and Concrete[J]. Structures, 2016(8):213-226. DU Y, CHEN Z, LIEW J Y R, et al. Rectangular Concrete-Filled Steel Tubular Beam-Columns Using High-Strength Steel:Experiments and Design[J]. Journal of Constructional Steel Research, 2017, 131:1-18. OUYANG Y, KWAN A K H. Finite Element Analysis of Square Concrete-Filled Steel Tube (CFST) Columns Under Axial Compressive Load[J]. Engineering Structures, 2018, 156:443-459. 钱稼茹, 王刚, 赵作周, 等. 钢管高强混凝土构件截面弯矩-曲率全曲线研究[J]. 工业建筑, 2004, 34(8):70-72. LI G C, LIU D, YANG Z J, et al. Flexural Behavior of High Strength Concrete Filled High Strength Square Steel Tube[J]. Journal of Constructional Steel Research, 2017, 128:732-744. GHO W M, LIU D. Flexural Behaviour of High-Strength Rectangular Concrete-Filled Steel Hollow Sections[J]. Journal of Constructional Steel Research, 2004, 60(11):1681-1696. 伊新富,方鸿强.钢管高强混凝土压弯构件抗震性能的试验研究[J]. 建筑钢结构进展, 2004, 6(2):23-32. HAN L H, YOU J T, LIN X K. Experimental Behaviour of Self-Consolidating Concrete (SCC) Filled Hollow Structural Steel (HSS) Columns Subjected to Cyclic Loadings[J]. Advances in Structural Engineering, 2005, 8(5):497-512. 马恺泽,梁兴文,李斌.高轴压比方钢管高强混凝土柱抗震性能研究[J]. 工程力学, 2010, 27(3):155-162. 李斌,高春彦.方钢管高强混凝土柱的受力性能研究[J]. 工程力学, 2011, 28(增刊1):69-74. SERRAS D N, SKALOMENOS K A, HATZIGEORGIOU G D, et al. Modeling of Circular Concrete-Filled Steel Tubes Subjected to Cyclic Lateral Loading[J]. Structures, 2016(8):75-93. VARMA A H, RICLES J M, SAUSE R, et al. Seismic Behavior and Modeling of High-Strength Composite Concrete-Filled Tube (CFT) Beam-Columns[J]. Journal of Constructional Steel Research, 2002, 58(5):725-758. 林松. 高性能钢管混凝土柱在水平低周反复荷载作用下的试验研究[J]. 铁道科学与工程学报, 2006, 3(1):22-26. LI G C, CHEN B W, YANG Z J, et al. Experimental and Numerical Behaviour of Eccentrically Loaded High Strength Concrete Filled High Strength Square Steel Tube Stub Columns[J]. Thin-Walled Structures, 2018, 127:483-499. 韩林海.钢管混凝土结构:理论与实践[M].3版.北京:科学出版社,2016. 臧兴震.钢管约束型钢高强混凝土柱滞回性能研究[D]. 兰州:兰州大学,2018. 李威.圆钢管混凝土柱-钢梁外环板式框架节点抗震性能研究[D]. 北京:清华大学,2011.
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