Design method and engineering application of shear wall with friction energy dissipation damper

Građevinar

article

Bin Dang¹  Tao Li²  Sheliang Wang³  Meng Zhan⁴ 

[1] Shangluo University, Shaanxi, China College of Urban, Rural Planning and Architectural Engineering;Shangluo University, Shaanxi, China College of Urban, Rural Planning and Architectural Engineering Huanghuai University, Henan,China School of Architectural Engineering;Xi’an University of Architecture and Technology, China School of civil Engineering;Huanghuai University, Henan,China School of Architectural Engineering

关键词: friction energy dissipation;    plastic hinge;    finite element analysis;    bearing capacity attenuation;    stiffness degradation;    energy dissipation;   

DOI  :  10.14256/JCE.2742.2019

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

At present, the target of seismic strengthening is to gradually work towards the objective of being able to quickly restore function, and even replace function after an earthquake. In addition, the foot of reinforced concrete shear walls is easily damaged in shear wall structures. If a damper is set in this part, it can ensure the normal stiffness and energy consumption function of the shear wall, and it can be easily and conveniently replaced after an earthquake at a low cost, which is an important measure to realize recoverable functional cities. Therefore, a new type of friction energy dissipation damper has been designed. First, the components of the damper are described, and the design process, including the base placement area, bolt hole length, and initial slip force, is theoretically analysed. Then, on the basis of a shear wall test, SAP2000 is used to analyse and verify correctness of the model. Furthermore, the dampers are placed in the corner of the shear wall for remodelling. Considering different bolt hole lengths, the hysteretic performance, bearing capacity attenuation, stiffness degradation, and energy dissipation capacity of the model are compared and analysed. The results show that the friction energy dissipation damper can improve the energy dissipation capacity and delay the stiffness degradation and bearing capacity attenuation of the structure. This study provides a theoretical basis for a more detailed engineering design and application.

【 授权许可】

CC BY