基于耗能连梁钢板阻尼器的高层结构耗能减振分析及应用

为改善传统连梁钢板阻尼器的适用性,提出了一种新型耗能连梁钢板阻尼器的设计方法,通过对阻尼器工作区域的划分与设计,使新型阻尼器充分发挥耗能作用,有效地提高了结构整体耗能能力。基于有限元软件ABAQUS模拟低周反复荷载作用下墙肢与阻尼器的应力应变状态,以验证所提出的新型阻尼器的设计方法及端部嵌固区的可靠性,并通过对原结构和实施耗能连梁钢板阻尼器结构进行弹塑性时程分析,探讨其改进后的抗震性能。研究结果表明,新型嵌固区构造不仅能够保证阻尼器与墙肢协同工作良好,还能大大降低施工难度;通过实施该阻尼器,可形成耗能连梁及抗震多道防线,在连梁钢筋混凝土部分损伤较为严重的情况下,仍能保证连梁具有一定的延性和耗能能力。

Energy Dissipation Analysis and Application of High-rise Structures Based on Coupling Beam Damper

Take the tower one of Hangtian Technology Square, where coupling beam damper is applied as an example, the key technologies of the coupling beam damper, which is used to improve the buildingrs energy dissipation, is proposed in this paper. To verify the reliability of this new end-mounted area of the coupling beam damper, the stress-strain state of the pier and the damper is studied by ABAQUS. Then the original building, and the new building which have the coupling beam damper are combined by elastic The analysis results show that the new endplastic time history analysis method in this paper. mounted area of the coupling beam damper can not only ensure the damper working with the pier well, but also reduce the difficulty of construction. The coupling beam damper could dissipate the vibration energy and reduce the building＇s response effectively. In this building, several defense levels are set by forming damper-reinforced composite beam, and the building＇s energy consumption ability is improved.