[1]李通、时强、王新武、叶重阳.耗能梁段腹板开孔对偏心支撑钢框架抗震性能影响[J].郑州大学学报(工学版),2021,42(02):38-43.[doi:10.13705/j.issn.1671-6833.2021.02.011]
　Li Tong,Shiqiang,Wang Xinwu,et al.Influence of Web Openings on Seismic Behavior of Eccentrically Braced Steel fr＜x＞ames[J].Journal of Zhengzhou University (Engineering Science),2021,42(02):38-43.[doi:10.13705/j.issn.1671-6833.2021.02.011]
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耗能梁段腹板开孔对偏心支撑钢框架抗震性能影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年02期
页码:
38-43
栏目:
出版日期:
2021-04-12

文章信息/Info

Title:
Influence of Web Openings on Seismic Behavior of Eccentrically Braced Steel fr＜x＞ames
作者:
李通、时强、王新武、叶重阳
河南科技大学土木工程学院;洛阳理工学院河南新型土木工程结构国际联合实验室;武汉理工大学理学院;

Author(s):
Li Tong; Shiqiang; Wang Xinwu; Ye Chongyang;
School of Civil Engineering, Henan University of Science and Technology; International Joint Laboratory of Henan New Civil Engineering Structure of Luoyang Institute of Technology; School of Science and Technology of Wuhan University of Technology;

关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2021.02.011
文献标志码:
A
摘要:
可替换耗能梁便于震后修复加固或者直接替换。对一个带可替换耗能梁段的偏心支撑钢框架进行了拟静力试验研究，得到带可替换耗能梁段的偏心支撑钢框架滞回性能和破坏模式。根据试验结果对耗能梁段构造进行改进，并建立了多个不同耗能梁段腹板开孔率的K型偏心支撑框架有限元模型，对其滞回性能进行了非线性数值分析。研究表明，有限元分析与试验结果吻合较好，耗能梁段腹板开孔能够有效降低框架梁的应力水平，保障较大的塑性变形发生在耗能梁段以内。随着开孔率的增加，框架的极限承载力，初始刚度，耗能能力均曾呈下降趋势。研究为同类结构的抗震设计提供了依据，并能够指导相关工程的设计。
Abstract:
The replaceable energy dissipating beam is easy to repaired and strengthened after the earthquake or it can be replaced directly. An experimental investigation was made to study the behavior of the eccentrically braced steel fr＜x＞ame with replaceable energy dissipating beam segments through quasi-static tests. Results show the Specimen failed with fr＜x＞ame beam tearing and brittle failure of weld which different failures to repair. According to the results of the test, a method ba＜x＞sed on li＜x＞nk’s configuration was proposed, 5 finite element models of eccentrically braced steel fr＜x＞ames of replaceable shear li＜x＞nks with different web opening were established. The hysteresis performance was analyzed nonlinearly. The research shows that the finite element analysis is in good agreement with the experiment results. The opening of the web in the energy consuming beam segment can effectively reduce the stress level of the fr＜x＞ame beam and ensure large plastic deformation occurs within the energy consuming beam segment. The ultimate bearing capacity, initial stiffness and energy consumption decrease with opening ratio increasing. The analysis provided the aseismic design basis for similar structure and able to guide the design of relevant projects
更新日期/Last Update: 2021-05-30