[1]何叶,徐玉野,林燕卿,等.钢筋混凝土异形柱抗扭性能的数值模拟[J].华侨大学学报(自然科学版),2012,33(4):429-434.[doi:10.11830/ISSN.1000-5013.2012.04.0429]
　HE Ye,XU Yu-ye,LIN Yan-qing,et al.Numerical Simulation of the Torsional Behavior for Reinforced Concrete Specially-Shaped Columns[J].Journal of Huaqiao University(Natural Science),2012,33(4):429-434.[doi:10.11830/ISSN.1000-5013.2012.04.0429]
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钢筋混凝土异形柱抗扭性能的数值模拟()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第33卷
期数:
2012年第4期
页码:
429-434
栏目:
出版日期:
2012-07-20

文章信息/Info

Title:
Numerical Simulation of the Torsional Behavior for Reinforced Concrete Specially-Shaped Columns
文章编号:
1000-5013(2012)04-0429-06
作者:
何叶;  徐玉野;  林燕卿;  罗漪
华侨大学 土木工程学院, 福建 厦门 361021
Author(s):
HE Ye;  XU Yu-ye;  LIN Yan-qing;  LUO Yi
College of Civil Engineering, Huaqiao University, Xiamen 361021, China
关键词:
钢筋混凝土;  异形柱;  抗扭性能;  数值模拟;  轴压比;  截面尺寸
Keywords:
reinforced concrete;  specially-shaped column;  torsional behavior;  numerical simulation;  axial compressive ratio;  sectional dimension
分类号:
TU375.3
DOI:
10.11830/ISSN.1000-5013.2012.04.0429
文献标志码:
A
摘要:
基于有限元软件ANSYS,建立压扭作用下钢筋混凝土异形柱抗扭性能的数值分析模型,并对压扭作用下9根异形柱的抗扭性能试验进行数值模拟分析.通过反复试算,提出混凝土异形柱压扭性能数值模拟的模型分析参数,分析轴压比对不同截面形状和尺寸的钢筋混凝土异形柱的开裂扭矩和极限扭矩的影响规律.研究结果表明:数值模型对异形柱的开裂扭矩和极限扭矩预测较准,但对扭矩-扭转角全过程曲线的预测还有待进一步改进;不同截面形状和尺寸的混凝土异形柱的开裂扭矩和极限扭矩随着轴压比的增大均近似呈直线增加,但当轴压比超过0.6时,异形柱的开裂扭矩和极限扭矩反将降低;随着轴压比的增大,异形柱从开裂扭矩发展到极限扭矩的过程缩短.
Abstract:
A numerical model for the torsional behavior of reinforced concrete columns with special-shaped cross sections under the actions of compression and torque was established by ANSYS. Some key finite element model parameters for the torsional behavior analysis of these specially-shaped columns were suggested through repeated trial numerical analysis of the tests of nine specially-shaped columns. The influence of axial compressive ratio on the cracking torque and ultimate torque of special-shaped columns with different sectional shapes and dimensions was analyzed. The results show that: the cracking torsion and ultimate torsion of specially-shaped columns is well predicted by finite element model, however the prediction of the full process curve of torque-torsion angle needs further improvement. The cracking torque and ultimate torque of specially-shaped columns increase approximately linearly with the increasing of 0~0.6 axial compressive ratio; for axial compressive ratio>0.6, the cracking torque and ultimate torque decrease. The developing process from the cracking torque to ultimate torque of the specially-shaped columns is shortened with the increasing of the axial compressive ratio.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2011-11-10
通信作者: 徐玉野(1978-),男,副教授,主要从事混凝土结构的研究.E-mail:yuyexu@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(50908091); 福建省高校杰出青年科研人才培育计划项目(JA10005); 福建省泉州市技术研究与开发重点项目(2011Z10); 华侨大学基本科研业务费专项基金资助项目(JB-SJ1011); 福建省教育厅A类面上科技项目(JA11003)
更新日期/Last Update: 2012-07-20