[1]萨仁高娃,聂建春,张 振,等.钢板-纤维增强混凝土连梁抗震性能研究[J].西安建筑科技大学学报(自然科学版),2024,56(04):492-501.[doi:10.15986/j.1006-7930.2024.04.003]
　SAREN Gaowa,NIE Jianchun,ZHANG Zhen,et al.Study on seismic performance of steel plate-fiber reinforced concrete coupling beams[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(04):492-501.[doi:10.15986/j.1006-7930.2024.04.003]
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钢板-纤维增强混凝土连梁抗震性能研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
56
期数:
2024年04期
页码:
492-501
栏目:
出版日期:
2024-08-28

文章信息/Info

Title:
Study on seismic performance of steel plate-fiber reinforced concrete coupling beams
文章编号:
1006-7930(2024)04-0492-10
作者:
萨仁高娃1; 聂建春1; 张 振1; 王 旭1; 李晨霞1; 田建勃2; 王游春2; 刘高举2
(1.内蒙古电力(集团)有限责任公司内蒙古电力经济技术研究院分公司,内蒙古 呼和浩特 010010; 2.西安理工大学 土木建筑工程学院,陕西 西安 710048)
Author(s):
SAREN Gaowa1; NIE Jianchun1; ZHANG Zhen1; WANG Xu1; LI Chenxia1; TIAN Jianbo2; WANG Youchun2; LIU Gaoju2
(1.Inner Mongolia Power Economic and Technological Research Institute, Hohhot 010010, China; 2.School of Civil Engineering and Architecture, Xi'an University of Technology, Xi'an 710048, China)
关键词:
纤维增强混凝土;  滞回性能;  有限元;  钢板-纤维增强混凝土连梁;  参数分析
Keywords:
fiber reinforced concrete;  hysteretic performance;  finite element;  steel plate-fiber reinforced concrete coupling beam;  parametric analysis
分类号:
TU398+.2
DOI:
10.15986/j.1006-7930.2024.04.003
文献标志码:
A
摘要:
为提升小跨高比钢筋混凝土连梁的抗震性能,提出一种新方案,即钢板-纤维增强混凝土连梁,通过对内置钢板-混凝土连梁和钢板-纤维增强混凝土连梁试件进行低周反复加载试验,研究连梁的破坏过程及滞回性能.结果表明:钢板-混凝土连梁在加载过程中,主剪切裂缝发展明显,最终发生弯曲剪切型破坏,而钢板-纤维增强混凝土在加载过程中,相比较于弯曲裂缝,剪切裂缝发展缓慢,加载到中后期,剪切裂缝基本停止发展,表现出较好的变形能力,直至试件破坏钢板-纤维增强混凝土连梁试件整体保持形态完整,最终发生以弯曲控制为主的破坏.纤维的加入能够有效地限制混凝土裂缝宽度,保持试件的完整性,并能在一定程度上改善连梁的破坏模式.在此基础上,通过有限元软件ABAQUS对钢板-纤维增强混凝土连梁进行参数分析,对钢板-纤维增强混凝土连梁的抗震性能进行研究,探究跨高比、钢板配板率、纤维增强混凝土抗压强度、纵筋配筋率和箍筋配筋率等因素对其性能的影响,为其实际应用提供理论支持.
Abstract:
In order to enhance the seismic performance of reinforced concrete(RC)coupling beam with small span-to-depth ratio, a new type of steel plate-fiber reinforced concrete coupling beam is proposed in this paper. The low-cycle repeated loading test was carried out on the specimens of steel plate-concrete coupling beam and steel plate-fiber reinforced concrete coupling beam, and the failure process and hysteretic performance of the coupling beam were studied. The results show that during the loading process of the steel plate-concrete coupling beam, the main shear crack develops obviously, and finally the bending shear failure occurs. However, during the loading process of the steel plate-fiber reinforced concrete, the shear crack develops slower than the bending crack, and in the middle and late stages of loading, the shear crack basically stops developing, showing good deformation ability. Until the specimen fails, the steel plate-fiber reinforced concrete coupling beam specimen remains intact as a whole, and finally the failure dominated by bending control occurs. The addition of fiber reinforced concrete can effectively limit the crack width of concrete, maintain the integrity of specimens, and improve the failure mode of coupling beams to a certain extent. On this basis, the parameter analysis of steel plate-fiber reinforced concrete coupling beam is carried out by finite element software ABAQUS. The influence of span-depth ratio, steel plate ratio, fiber reinforced concrete compressive strength, longitudinal reinforcement and stirrup reinforcement ratio on the seismic performance of steel plate-fiber reinforced concrete coupling beam is studied, which provides a theoretical basis for the practical application of steel plate-fiber reinforced concrete coupling beam.

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备注/Memo

备注/Memo:
收稿日期:2023-07-23修回日期:2024-06-03
基金项目:陕西省自然科学基金(2017JQ5032)
第一作者:萨仁高娃(1976—),女,本科,高级工程师,主要研究方向为混凝土结构及抗震、电力工程咨询技术管理.E-mail:srgw2020@163.com
更新日期/Last Update: 2024-08-28