• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Zhang, Yudi (Zhang, Yudi.) | Cheng, Xiaowei (Cheng, Xiaowei.) | Diao, Mengzhu (Diao, Mengzhu.) | Li, Yi (Li, Yi.) (学者:李易) | Guan, Hong (Guan, Hong.) | Sun, Hailin (Sun, Hailin.)

收录:

EI Scopus SCIE

摘要:

Fibre-reinforced polymer (FRP) strips have been widely used to retrofit existing reinforced concrete (RC) frame structures to improve their progressive collapse resistance. However, existing FRP retrofitting schemes improve structural collapse resistance by simultaneously enhancing the tensile and flexural strengths of horizontal structural members. The enhancement in flexural strength may lead to an unfavourable strong-beam weakcolumn mechanism in the seismic scenario. Hence, existing FRP retrofitting schemes were optimised in this study by numerical investigation using LS-DYNA, and effective schemes against both progressive collapse and earthquake were identified for RC beam-column and beam-slab-column substructures. The identified schemes remarkably improved the structural performance against progressive collapse at large deformations whilst marginally affecting the progressive collapse resistance at small deformations to guarantee the strong-column weak-beam mechanism in the seismic scenario. Furthermore, based on the parametric analyses for 81 fullscale substructures, analytical methods were proposed to calculate the strength of RC frame substructures retrofitted with the identified schemes under catenary mechanism, which can be further used to design the FRP retrofitted RC frames.

关键词:

Progressive collapse Numerical simulation Scheme optimisation Resistance calculation Reinforced concrete frame FRP retrofit

作者机构:

  • [ 1 ] [Zhang, Yudi]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 2 ] [Cheng, Xiaowei]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 3 ] [Li, Yi]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China
  • [ 4 ] [Diao, Mengzhu]Griffith Univ, Sch Engn & Built Environm, Gold Coast Campus, Gold Coast, Qld 4222, Australia
  • [ 5 ] [Guan, Hong]Griffith Univ, Sch Engn & Built Environm, Gold Coast Campus, Gold Coast, Qld 4222, Australia
  • [ 6 ] [Sun, Hailin]China Architecture Design & Res Grp, Beijing 100044, Peoples R China

通讯作者信息:

查看成果更多字段

相关关键词:

来源 :

ENGINEERING STRUCTURES

ISSN: 0141-0296

年份: 2023

卷: 289

5 . 5 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:19

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:272/4897503
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司