框架-分布摇摆芯筒-核心筒结构体系力学模型及耗能减震性能分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (5) : 47-56.

论文

陈易飞,何浩祥,兰炳稷,孙澔鼎

作者信息 +

Mechanical model and energy dissipation performance analysis of frame-distributed rocking core tube-core tube structure system

CHEN Yifei, HE Haoxiang, LAN Bingji, SUN Haoding

Author information +

文章历史 +

摘要

为了提高传统框架-核心筒(FCT)结构的经济性，提出框架-分布芯筒-核心筒(FDCT)新型高层结构体系，用以减小传统筒体围合面积。进而提出框架-分布摇摆芯筒-核心筒(FDRCT)新型高层结构体系，改善FDCT因刚度削弱导致的抗震能力下降。根据FCT结构、FDCT结构和FDRCT结构的简化分析模型，基于Lagrange方程建立三种结构的动力方程。通过分析地震下结构的时程响应，针对分布摇摆芯筒的质量进行相关参数分析，证明附加摇摆体系的FDRCT结构具备优良的耗能减震性能。对三种结构分别进行了不同场地条件以及不同类型长周期地震波下动力时程分析，结果表明FDRCT结构在不同类型地震波下均有耗能减震效果，且在长周期地震波下更为优越。对三种结构的性能-利润总值进行评估，结果表明在不同类型地震波下FDRCT结构均可实现既能提升结构的经济性，也能保证结构在地震下的安全性能。

Abstract

In order to improve the economy of traditional frame core tube (FCT) structural system, a new high-rise structural system of frame-distributed tube-core tube (FDCT) is proposed to reduce the enclosed area of traditional tube. Furthermore, the frame-distributed rocking tube-core tube (FDRCT) high-rise structural system is proposed to improve the reduced seismic capacity of FDCT due to the weakened stiffness. According to the simplified mechanical models of FCT, FDCT and FDRCT, the three structural dynamic equations are established based on Lagrange Equation. By analyzing the time history response of the structure subjected to earthquake and the effect of mass parameter of distributed rocking tube, it is proved that the FDRCT structure with rocking system has excellent energy dissipation and damping performance. The dynamic time history analysis of the three structures under different site conditions and different types of long-period earthquake waves is carried out, and the results show that the FDRCT structure could has energy dissipation and damping effect under different types of earthquake waves, and it is superior under long-period seismic waves. By evaluating the performance-profit value of the three structures, it show that the FDRCT structure can improve the structural economy and ensure the safety performance under different types of earthquake waves.

导出引用

陈易飞, 何浩祥, 兰炳稷, 孙澔鼎. 框架-分布摇摆芯筒-核心筒结构体系力学模型及耗能减震性能分析[J]. 振动与冲击, 2023, 42(5): 47-56

CHEN Yifei, HE Haoxiang, LAN Bingji, SUN Haoding. Mechanical model and energy dissipation performance analysis of frame-distributed rocking core tube-core tube structure system[J]. Journal of Vibration and Shock, 2023, 42(5): 47-56

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