文献类型：期刊文献

英文题名：Seismic performance of partial self-centering prestressed concrete frames with friction dampers

作者：Huang, Linjie Wen, Hongwei Jiang, Kaixi Wei, Yang Zhou, Zhen Xie, Qin Qian, Zhendong

第一作者：Huang, Linjie

通信作者：Huang, LJ[1];Wei, Y[1]

机构：[1]Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Peoples R China;[2]Southeast Univ, Coll Civil Engn, Nanjing 210096, Peoples R China;[3]Guizhou Inst Technol, Sch Civil Engn, Guiyang 550003, Peoples R China

第一机构：Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Peoples R China

通信机构：corresponding author), Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Peoples R China.

年份：2024

卷号：62

外文期刊名：STRUCTURES

收录：;EI(收录号：20241515889162);Scopus(收录号：2-s2.0-85189757878);WOS:【SCI-EXPANDED(收录号:WOS:001225191400001)】；

基金：The research described in this paper was sponsored by the National Natural Science Foundation of China (52208480, 52108449), Key project of National Natural Science Foundation of China (52038010), the China Postdoctoral Science Foundation (2023M731712), Natural Science Foundation of the Jiangsu Higher Education Institutions of China (22KJB560007), Doctor of Entrepreneurship and Innovation in Jiangsu Province (JSSCBS20210553), Nanjing Forestry University Undergraduate Innovation Training Program (202210298100Y). These supports are gratefully acknowledged.

语种：英文

外文关键词：Partial self-centering; Low prestressing; Energy dissipation ratio; Friction dampers; Seismic performance

摘要：For traditional completed self-centering prestressed concrete (SCPC) frames, high prestressing demands may lead to premature yielding of posttensioned tendons and insufficient energy dissipation capacity of structures under large earthquakes. The concept of partial SCPC frame, characterized by a high energy dissipation ratio beta and low prestressed forces, is proposed in this study to enhance the energy dissipation capacity of traditional SCPC frames. Aiming at acquiring the reliable design parameters for the partial SCPC frames, comprehensively analyses were carried out based on the OpenSees platform. The low reversed cycle loading analyses were carried out to study the hysteretic behavior of structures. The nonlinear dynamic time-history analyses under DBE (design basis earthquakes) and MCE (maximum considered earthquake) seismic levels were carried out to study the entire and local dynamic responses. The results show that the partial SCPC frames present an almost smooth flagshaped hysteretic energy-dissipating mechanism, which is useful to decrease the difference in shear force between adjacent floors to decrease the displacement and floor accelerations of structures, and the repairability of partial SCPC frames occurs prior to the completed SCPC frames. beta ranges from 1.0 to 1.6 is a reliable design ranges, and the partial SCPC frames can achieve good performance in terms of energy dissipation capacity and self-centering capability to satisfy the expected seismic responses of structures. In comparison to completed SCPC frames, the damage of structural and nonstructural components for the partial SCPC frames can be mitigated obviously under major earthquakes.