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为提升高层结构连梁的抗震性能,使连梁尽可能多地耗散地震能量,延长塑性发展过程,形成抗震防线,基于内嵌式钢板阻尼器复合连梁,考虑钢板阻尼器与混凝土的不同粘结形式,研究了二者的协同工作机制及破坏模式。针对钢板阻尼器复合连梁的钢板阻尼器与混凝土界面,假定了四种不同的粘结形式。通过分析得出,粘结形式的不同导致钢板阻尼器与连梁的破坏模式存在明显差异,其中,连梁混凝土的耗能区域和破坏形式随着粘结形式的改变表现为弯剪破坏、弯曲破坏及剪切破坏,而钢板阻尼器的耗能分布及耗能程度亦均与粘结形式有关。最后对钢板阻尼器复合连梁的承载能力和耗能能力进行分析,并考虑连梁对墙肢损伤的影响,确定了具有最合理粘结形式的钢板阻尼器复合连梁设计。
In order to improve the seismic performance of the beam with high-rise structure, the connecting beam can dissipate the seismic energy as much as possible to extend the plasticity development process and form the seismic defense line. Considering the difference between steel dampers and concrete, Bond form, the two work together to study the mechanism and destruction mode. For the steel damper and concrete interface of the steel damper with composite beam, four different types of bonding are assumed. The analysis shows that the different bonding forms lead to significant differences in the failure modes between the steel damper and the connecting beam. Among them, the energy dissipation zone and the failure form of the concrete filled beam are characterized by bending shear failure and bending Damage and shear damage, and the energy dissipation of steel damper and energy consumption are also related to the bonding form. Finally, the bearing capacity and energy dissipation capacity of the composite damper with steel damper are analyzed, and considering the influence of the connecting beam on the damage of the wall pier, the design of the composite damper with steel damper with the most reasonable form of bond is determined.