钢模块-筒体结构耗能连梁抗震性能研究
翟伟 , 鞠洪涛 , 汤豫 , 黄耀 , 毕巧莹 , 杨俊芬 , 王弋铎 , 孙亚璇
建筑钢结构进展 ›› 2026, Vol. 28 ›› Issue (03) : 58 -70.
钢模块-筒体结构耗能连梁抗震性能研究
Study on Seismic Behavior of Energy-Dissipating Coupling Beams in Steel Module-Tube Structures
目前钢模块在工程实际应用中仍存在诸多问题,如抗侧刚度不足、节点抗震性能较弱、在高层建筑领域的应用受限等。而钢模块-筒体结构具备优异的抗侧力性能,黏弹性连梁阻尼器在剪力、轴力、弯矩的综合作用下,仍能保持良好的力学性能,二者均符合钢模块-筒体结构耗能连梁的设计要求。针对上述连梁的结构特点,文中设计了一种钢模块-筒体结构耗能连梁,建立了有限元模型并验证其可靠性。参考此前对耗能连梁开展的往复加载试验,选取橡胶材料、柱轴压比、铅芯直径、黏弹性层厚度、加载频率5个影响参数,设计了16个计算模型进行分析。结合计算结果中的滞回曲线与骨架曲线展开研究,结果表明:该耗能连梁在地震作用下具有良好的耗能性能。
Currently, steel modules in practical applications face challenges such as insufficient lateral stiffness, relatively weak seismic performance of joints, and limited applicability in high-rise buildings. In contrast, the steel module-core tube structure exhibits excellent lateral force resistance, and the viscoelastic coupling beam damper maintains strong mechanical performance under combined shear force, axial force and bending moment, meeting the design requirements for energy-dissipating coupling beams in steel module-core tube structures. Given these characteristics of the coupling beam, this paper designs an energy-dissipating coupling beam for the steel module-core tube structure, establishes a finite element model, and verifies its reliability. Subsequently, a parametric analysis is conducted on the energy-dissipating coupling beam under cyclic loading, varying five parameters: rubber material, column axial compression ratio, lead core diameter, viscoelastic layer thickness and loading frequency, with a total of 16 models analyzed. By examining the hysteresis curves and skeleton curves from the numerical results, it is concluded that the energy-dissipating coupling beam demonstrates excellent energy dissipation performance under seismic conditions.
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国家自然科学基金(52378188)
陕西省重点研发计划一般项目(2025SF-YBXM-552)
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