基于ABAQUS模拟的UHPC板柱节点抗冲切性能分析
Punching Shear Performance Analysis of UHPC Slab-Column Joints Using ABAQUS Simulation
摘要: 为研究超高性能混凝土(UHPC)板柱节点在不同参数下的力学性能，本文结合已有的板柱节点冲切破坏试验，通过ABAQUS有限元软件对试验进行建模，并对比试验结果与模拟结果，以验证有限元模型的准确性。在验证基础上，改变UHPC的范围、混凝土的强度和钢筋配筋率，共建立了49组有限元模型，以分析不同参数对UHPC板柱节点力学性能的影响。研究结果表明：不同UHPC区域面积的板柱节点模型会显著影响挠度和承载力，其中UHPC区域面积在2倍板厚到5倍板厚之间提升效果显著；UHPC与普通混凝土(NC)强度的提高对构件承载力有不同程度的提升作用；钢筋配筋率的增加会使UHPC板柱节点构件的挠度逐渐减小，并显著提高其极限抗冲切承载能力。
Abstract: To investigate the mechanical performance of ultra-high performance concrete (UHPC) slab-column joints under different parameters, this study utilizes existing punching shear tests on slab-column joints and models them using the ABAQUS finite element software. By comparing the experimental results with the simulation results, the accuracy of the finite element model is verified. Based on this verification, 49 finite element models were established by varying the UHPC range, concrete strength, and reinforcement ratio to analyze the mechanical performance of UHPC slab-column joints under different parameters. The results indicate that different UHPC area sizes significantly affect the deflection and bearing capacity of the slab-column joint models, with notable improvements observed when the UHPC area ranges from 2 to 5 times the slab thickness. Additionally, increasing the strength of UHPC and normal concrete (NC) enhances the bearing capacity of the components to varying degrees. The increase in reinforcement ratio gradually reduces the deflection of the UHPC slab-column joint components and significantly enhances their ultimate punching shear capacity.
文章引用：顾凯欣, 梁诗雪, 吴君宁, 高佳辉. 基于ABAQUS模拟的UHPC板柱节点抗冲切性能分析[J]. 建模与仿真, 2024, 13(5): 5651-5663. https://doi.org/10.12677/mos.2024.135513

参考文献

[1] Sahab, M.G., Ashour, A.F. and Toropov, V.V. (2005) Cost Optimisation of Reinforced Concrete Flat Slab Buildings. Engineering Structures, 27, 313-322. [Google Scholar] [CrossRef] 
[2] Wosatko, A., Pamin, J. and Polak, M.A. (2015) Application of Damage-Plasticity Models in Finite Element Analysis of Punching Shear. Computers & Structures, 151, 73-85. [Google Scholar] [CrossRef] 
[3] Luo, X., Zhang, S., Li, A. and Zhang, D. (2023) Fiber Content Optimization of UHPC and R-UHPC Oriented to Tensile Behavior and Cost Reduction. Construction and Building Materials, 395, Article ID: 132314. [Google Scholar] [CrossRef] 
[4] Zhou, K., Qi, J. and Wang, J. (2023) Post-Cracking Punching Shear Behavior of Concrete Flat Slabs Partially Reinforced with Full-Depth UHPC: Experiment and Mechanical Model. Engineering Structures, 275, Article ID: 115313. [Google Scholar] [CrossRef] 
[5] Milligan, G.J., Polak, M.A. and Zurell, C. (2020) Finite Element Analysis of Punching Shear Behaviour of Concrete Slabs Supported on Rectangular Columns. Engineering Structures, 224, Article ID: 111189. [Google Scholar] [CrossRef] 
[6] 刘聪颖. 装配式钢结构梁柱节点设计与力学性能分析[D]: [硕士学位论文]. 湘潭: 湘潭大学, 2019.
[7] 张飞, 马建勋, 南燕. 混凝土塑性损伤模型参数的选取与验证计算[J]. 混凝土与水泥制品, 2021(1): 7-11, 29.
[8] 《混凝土结构设计规范》正式发行[J]. 辽宁建材, 2011(6): 12.
[9] 王海龙, 祝玉麒, 夏晋, 等. 组合连接件对钢管-混凝土黏结性能的影响[J]. 浙江大学学报(工学版), 2018, 52(6): 1107-1113.
[10] 张哲, 邵旭东, 李文光, 等. 超高性能混凝土轴拉性能试验[J]. 中国公路学报, 2015, 28(8): 50-58.
[11] 杨剑, 方志. 超高性能混凝土单轴受压应力-应变关系研究[J]. 混凝土, 2008(7): 11-15.
[12] 吴玥, 张阳, 刘颖峰, 等. 预制UHPC与现浇NC界面抗剪性能试验研究与数值分析[J]. 铁道建筑, 2023.
[13] Cakmak, F., Menkulasi, F. and Dogu, M. (2023) Punching Shear Capacity of Nonprestressed UHPFRC Flat Plates: Evaluation of Existing Methods. Engineering Structures, 280, Article ID: 115662. [Google Scholar] [CrossRef] 
[14] 张振宇, 万璐, 冯吉利. 带有橡胶垫层的混凝土接触特性试验及其内聚力模型[J]. 工程力学, 2018, 35(8): 55-66.
[15] 卢昱成, 李庆华, 童精中, 等. UHTCC-混凝土组合板柱节点抗冲切承载力分析[J]. 低温建筑技术, 2022, 44(7): 117-120.
[16] 宫龙颖. ABAQUS接触问题浅析[J]. 中国煤炭, 2009, 35(7): 66-68.
[17] 郭小斌, 刘成武. 光滑有限元方法研究进展[J]. 机电技术, 2019(1): 91-96.
[18] 童亿力, 孙俊豪, 邬林锋, 等. 不同柱帽布置形式的板柱节点抗冲切性能有限元分析[J]. 水利规划与设计, 2022(9): 122-126.
[19] Al-Osta, M.A., Ahmad, S., Al-Madani, M.K., Khalid, H.R., Al-Huri, M. and Al-Fakih, A. (2022) Performance of Bond Strength between Ultra-High-Performance Concrete and Concrete Substrates (Concrete Screed and Self-Compacted Concrete): An Experimental Study. Journal of Building Engineering, 51, Article ID: 104291. [Google Scholar] [CrossRef] 
[20] 朱大壮, 黄冰峰, 朴贤日, 等. 不同配筋率下钢筋混凝土板柱节点抗冲切承载力试验研究[J]. 工程力学, 2024, 41(z1): 66-73.
[21] 段春争, 王肇喜, 李红华. 高速切削锯齿形切屑形成过程的有限元模拟[J]. 哈尔滨工程大学学报, 2014, 35(2): 226-232.

为你推荐