摘   要：为了解决预制混凝土柱干式连接和免支撑施工问题，提出了一种预制混凝土柱法兰灌浆连接节点，研究了其设计方法，并设计制作了法兰灌浆连接预制柱试件，对其进行了低周往复加载试验，分析了试件的破坏形态和受力性能，并与矩形钢管通长设置试件（对照组）进行了对比。结果表明：法兰灌浆连接预制柱的破坏模式为典型压弯破坏，塑性铰首先出现在预制混凝土柱身纵筋与钢连接件的连接截面，与设计预期一致，可实现法兰灌浆连接节点“强连接弱构件”设计；与对照组试件相比，法兰灌浆连接预制柱试件的骨架曲线走势、承载能力和变形能力基本一致，可视为“等强连接”，同时也验证了设计方法的正确性和连接构造的可靠性；法兰灌浆连接预制柱试件的极限位移角为1/42，位移延性系数为5.5，具有较高的延性水平。采用预制上、下柱法兰灌浆连接可提高装配效率，实现干式连接和免支撑施工，对推动工业化发展具有一定的参考价值。Abstract: In order to solve the problems associated with dry connection and unsupported construction in prefabricated concrete columns, a grouted flange connection joint for prefabricated concrete columns was proposed. The design method was studied, and prefabricated column specimens with grouted flange connection were designed to conduct low cyclic reversed loading tests. The failure modes and mechanical behaviors of the specimens were analyzed, and the test results were compared with those of rectangular steel pipe specimens (the control group). The results show that the failure mode of the prefabricated column specimens with grouted flange connection is a typical flexural-compression failure, with plastic hinges first developing at the connection section between the longitudinal bars of the prefabricated concrete columns and the steel connectors, which is consistent with the design expectations. This enables the achievement of the "strong connection, weak member" design principle for grouted flange connection joints. Compared with the control group specimens, the prefabricated column specimens with grouted flange connection exhibit nearly identical trends in their skeleton curves, as well as bearing capacity and deformation capacity. This connection can thus be regarded as an "equal-strength connection", which also verifies the correctness of the design method and the reliability of the connection structure. The ultimate displacement angle of the specimens is 1/42, and the displacement ductility coefficient is 5.5, indicating excellent ductility. The use of grouted flange connection joint for prefabricated upper and lower columns can improve assembly efficiency, realize dry connection and unsupported construction, and provide certain reference value for promoting the industrial development of prefabricated concrete structures.

邬程欢,王朴炎,周剑,等.预制混凝土柱法兰灌浆节点的连接设计及试验验证[J].混凝土与水泥制品,2026,53(3):68-74,92. WU C H,WANG P Y,ZHOU J,et al.Connection design and experimental verification of grouted flange joint for prefabricated concrete columns[J].China Concrete and Cement Products,2026,53(3):68-74,92 (in Chinese).

摘   要：为借助模型更好地揭示超高性能混凝土（Ultra-high performance concrete，UHPC）组合柱在被动约束下的力学性能，本文使用ABAQUS有限元分析软件建立了玻璃纤维增强复合材料（Glass fiber reinforce polymer， GFRP）约束UHPC组合柱的轴压数值分析模型，验证了模型的准确性及合理性。在此基础上，模拟研究了GFRP管厚度（0~6 mm）、GFRP缠绕角度（60°~80°）和钢纤维掺量（1%~3%）对GFRP管约束UHPC组合柱轴压性能。结果表明：所建立的轴压数值分析模型可以有效模拟组合柱的轴压力学性能，模型精度较高；随着GFRP管厚度的增加，试件的峰值荷载增大，极限位移也有一定提高；随着GFRP缠绕角度的增加，试件的峰值荷载和极限位移均增大；随着钢纤维掺量的增加，试件的峰值荷载和极限位移均增大，但二者的提高幅度有所降低。研究成果可为GFRP管约束UHPC组合柱的试验研究提供理论补充，也可为此类组合柱在高轴压、大荷载柱类构件中的应用提供有效参考。Abstract: In order to better reveal the mechanical properties of ultra-high performance concrete (UHPC) composite columns under passive confinement by means of numerical models, a numerical analysis model for axial compression of glass fiber reinforced polymer (GFRP)-confined UHPC composite columns was established using ABAQUS finite element analysis software in this paper, and the accuracy and rationality of the model were verified. On this basis, the effects of GFRP tube thickness (0~6 mm), GFRP winding angle (60°~80°), and steel fiber content (1%~3%) on the axial compression performance of GFRP tube-confined UHPC composite columns were simulated and studied. The results indicate that the established axial compression numerical analysis model can effectively simulate the axial compression performance of composite columns, with high model accuracy. As the thickness of GFRP tube increases, the peak load of the specimen increases and the ultimate displacement also increases to some extent. With the increase of GFRP winding angle, the peak load and ultimate displacement of the specimen both increase. With the increase of steel fiber content, the peak load and ultimate displacement of the specimen both increase, but the magnitude of their improvement decreases. The research results can provide theoretical supplements for the experimental study of GFRP tube-confined UHPC composite columns, and also provide effective references for the application of such composite columns in high axial compression and large load column components.

宋帅奇,张博文,王轩,等.基于ABAQUS的GFRP管约束UHPC组合柱轴压性能研究[J].混凝土与水泥制品,2026,53(3):60-67. SONG S Q,ZHANG B W,WANG X,et al.Study on axial compression performance of GFRP tube-confined UHPC composite columns using ABAQUS[J].China Concrete and Cement Products,2026,53(3):60-67 (in Chinese).