|本期目录/Table of Contents|

[1]王文达,易练波,范家浩.中空夹层圆钢管混凝土构件内外法兰连接 受弯性能分析[J].建筑科学与工程学报,2020,37(04):42-51.[doi:10.19815/j.jace.2019.10035]
 WANG Wen-da,YI Lian-bo,FAN Jia-hao.Analysis of Bending Performance of Inner and Outer Flange Connections of Circular Concrete-filled Double Skin Steel Tubular Member[J].Journal of Architecture and Civil Engineering,2020,37(04):42-51.[doi:10.19815/j.jace.2019.10035]
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中空夹层圆钢管混凝土构件内外法兰连接 受弯性能分析(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
37卷
期数:
2020年04期
页码:
42-51
栏目:
出版日期:
2020-07-30

文章信息/Info

Title:
Analysis of Bending Performance of Inner and Outer Flange Connections of Circular Concrete-filled Double Skin Steel Tubular Member
文章编号:
1673-2049(2020)04-0042-10
作者:
王文达易练波范家浩
(兰州理工大学 土木工程学院,甘肃 兰州 730050)
Author(s):
WANG Wen-da YI Lian-bo FAN Jia-hao
(School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China)
关键词:
法兰连接 中空夹层圆钢管混凝土构件 受弯性能 旋转轴 最大螺栓拉力
Keywords:
flange connection circular concrete-filled double skin steel tubular member bending performance rotation axis maximum bolt tension
分类号:
TU398
DOI:
10.19815/j.jace.2019.10035
文献标志码:
A
摘要:
为研究中空夹层圆钢管混凝土内外法兰连接的受弯性能,用ABAQUS软件建立了该节点的力学模型,分析了中空夹层圆钢管混凝土内外法兰节点受弯时节点中和轴和旋转轴的位置,并分析了内外法兰错开间距、螺栓预紧力、空心率、法兰板厚度、混凝土强度、螺栓内外边距比值等参数对节点极限承载力、最大螺栓拉力的影响。结果表明:节点的中和轴和旋转轴随弯矩变化,在外法兰板底端最大螺栓屈服前,旋转轴位置大约为0.6R(R为外钢管半径),并且节点的中和轴和旋转轴不在同一截面; 外圈最大螺栓拉力随法兰板厚度、内外法兰错开间距、螺栓内外边距比值增大而减小,随空心率、螺栓预紧力增大而增大; 混凝土强度对最大螺栓拉力影响不大,可以不作为主要参数进行分析。
Abstract:
In order to study the bending performance of the inner and outer flange connections of the circular concrete-filled double skin steel tube, the mechanical model of the joint was established using ABAQUS software. The positions of the neutral axis and the rotation axis of the joint when the inner and outer flange connections of the circular concrete-filled double skin steel tube were bent were analyzed. The influences of the parameters such as the inner and outer flange stagger distance, bolt pre-tightening force, hollow ratio, flange thickness, concrete strength, bolt inner and outer margin ratio on the ultimate bearing capacity of the joint and the maximum bolt tension were analyzed. The results show that the neutral axis and rotation axis of the joint change with the bending moment. Before the maximum bolt at the bottom of the outer flange plate yields, the position of the rotation axis is approximately 0.6R(R is outer steel pipe radius), and the neutral axis and rotation axis of joint are not in the same section. The maximum bolt tension decreases with the increase of the thickness of flange plate, the inner and outer flange staggered distance, and the bolt inner and outer margin ratio. It increases with the increase of the hollow ratio and the bolt pre-tightening force. Concrete strength has little effect on the maximum bolt tension, so it can not be used as the main parameter for analysis.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2019-10-23
基金项目:国家自然科学基金项目(51768038); 甘肃省高等学校协同创新团队项目(2018C-08)
作者简介:王文达(1976-),男,甘肃天水人,教授,博士研究生导师,工学博士,E-mail:wangwd@lut.edu.cn。
更新日期/Last Update: 2020-07-29