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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

36卷

期数:

2019年06期

页码:

80-87

栏目:

出版日期:

2019-11-25

文章信息/Info

Title:

Grey Relevance Analysis of Influencing Parameters of Bearing Capacity of Concrete Beam-column Joints in Traditional Style Buildings

文章编号:

1673-2049(2019)06-0080-08

作者:

董金爽^1,2,隋 龑²,薛建阳²

(1. 海南大学 土木建筑工程学院,海南 海口 570228; 2. 西安建筑科技大学 土木工程学院,陕西 西安 710055)

Author(s):

DONG Jin-shuang^1,2, SUI Yan², XUE Jian-yang²

(1. College of Civil Engineering and Architecture, Hainan University, Haikou 570228, Hainan, China;2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China)

关键词:

传统风格建筑;  双梁-柱节点;  承载力;  灰色关联分析

Keywords:

traditional style building;  double beam-column joint;  bearing capacity;  grey relevance analysis

分类号:

TU311

DOI:

-

文献标志码:

A

摘要:

为研究传统风格建筑混凝土梁-柱节点的破坏特征及力学性能,进行了2个节点试件的动力循环加载试验,包括1个传统风格建筑混凝土双梁-柱节点试件和1个单梁-柱节点对比试件,获得了试件的恢复力特征曲线。基于试验研究结果,采用ABAQUS软件建立试件三维有限元模型,在验证模型结构合理性的基础上,结合灰色系统理论的关联分析方法,以轴压比、混凝土强度、上下梁间距及配箍率等关键参数为关联因子,对影响传统风格建筑混凝土梁-柱节点承载力的关键参数进行关联度计算,得出了各参数对其承载力影响权重排序。结果表明:相对于单梁-柱节点,传统风格建筑混凝土双梁-柱节点承载力及耗能能力较高,滞回曲线更饱满,但其位移延性略小于单梁-柱节点; 总体上,传统风格建筑混凝土梁-柱试件节点域的变形及耗能能力较强,抗震性能良好; 传统风格建筑混凝土梁-柱节点承载力关键影响因素的权重依次为混凝土强度、配箍率、型钢强度、轴压比; 所得结论为传统风格建筑力学性能及承载力计算的进一步研究提供了新思路。

Abstract:

In order to study the failure characteristics and mechanical properties of concrete beam-column joints of traditional style building, the dynamic cyclic loading tests of two joint specimens were carried out, including a traditional style concrete double-beam-column joint and a single-beam-column joint. And the restoring force characteristic curves of the specimens were obtained. Based on the experimental results, the three-dimensional finite element model of specimen was established by using ABAQUS software. On the basis of validating the rationality of the model structure and combining with the relational analysis method of grey system theory, taking the key parameters such as axial compression ratio, concrete strength, spacing between upper and lower beams and stirrup ratio as the relational factors, the relational degree of the key influencing factors of bearing capacity of the traditional style concrete beam-column joints was calculated, and the weight order of the influencing factors of each parameter on its bearing capacity was obtained. The results show that compared with single beam-column joints, the traditional style concrete double beam-column joints have higher bearing capacity and energy dissipation capacity, fuller hysteretic curve, but their displacement ductility is slightly smaller than single beam-column joints. Generally, the deformation and energy dissipation capacity of the joint area of the traditional style concrete beam-column specimens are strong, and the seismic performance is good. The key influencing factors of bearing capacity of traditional style concrete beam-column joints are concrete strength, stirrup ratio, section steel strength and axial compression ratio in turn. The research results provide a new idea for the further study of mechanical properties and bearing capacity calculations of traditional style buildings.

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备注/Memo

备注/Memo:

收稿日期:2018-10-22
基金项目:海南省自然科学基金项目(519QN190); 国家自然科学基金项目(51208411); 海南省重大科技计划项目(ZDKJ201803); 海南大学科研基金资助项目(KYQD(ZR)1860); 陕西省教育厅重点实验室科研计划项目(17JS061); 陕西省科学技术研究发展计划项目(2013KW23-01)
作者简介:董金爽(1989-),男,山东菏泽人,海南大学讲师,工学博士,E-mail:mlcxll@163.com。
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更新日期/Last Update: 2019-11-26