型钢再生混凝土组合柱正截面受力性能的有限元分析

薛建阳; 孟刚; 刘祖强; 陈卓; 陈宗平

doi:10.13204/j.gyjz201309004

型钢再生混凝土组合柱正截面受力性能的有限元分析

doi: 10.13204/j.gyjz201309004

1.
1. 西安建筑科技大学土木工程学院,西安710055;
2.
2. 广西大学土木建筑工程学院,南宁530004

基金项目:

国家自然科学基金项目(51178384);住房和城乡建设部科学技术项目(2012-K2-12);陕西省留学人员科技活动择优资助项目(陕外专发[2010]26号);陕西省教育厅科研计划项目(12JK0902);广西自然科学基金重点项目(2013GXNSFDA019025);广西防灾减灾与工程安全重点实验室开放课题(2012ZDK01)

详细信息

作者简介:
第一作者:薛建阳，男，1970 年出生，博士，教授。email：jianyang_xue@163.com

中图分类号: TU398.9
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- 文章访问数: 154
- HTML全文浏览量: 8
- PDF下载量: 71
- 被引次数: 0
出版历程
- 收稿日期: 2013-01-30
- 刊出日期: 2013-09-20

FINITE-ELEMENT ANALYSIS OF MECHANICAL BEHAVIORS OF NORMAL CROSS-SECTION OF STEEL RECYCLED AGGREGATE CONCRETE COMPOSITE COLUMNS

1.
1. College of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;
2.
2. College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China

摘要

摘要: 采用OpenSees作为有限元分析平台对6根型钢再生混凝土轴压试件和9根偏压试件进行受压静载试验全过程的非线性数值模拟，分析了再生混凝土取代率、长细比及混凝土强度对型钢再生混凝土组合柱轴心受压承载力的影响和再生混凝土取代率、相对偏心距及混凝土强度对型钢再生混凝土组合柱偏心受压承载力的影响。在分析中，选用基于柔度法的纤维模型进行型钢再生混凝土柱的静力非线性分析，并结合梁柱杆件单元，根据不同的材料属性对型钢再生混凝土柱正截面进行精细划分，来实现型钢再生混凝土柱的模拟技术。与试验的对比分析表明，OpenSees能够有效地模拟型钢再生混凝土柱正截面的受力和变形过程，具有较好的计算精度。
- 型钢再生混凝土 /
- 偏压柱 /
- 纤维模型 /
- 静力非线性分析 /
- 数值模拟
Abstract: In this paper，it was carried out nonlinear numerical simulation of six axial specimens and nine eccentriccompression specimens of steel reinforced recycled aggregate concrete columns using open-source earthquakeengineering simulation system OpenSees． It was also analysed the effects of the recycled aggregate replacement rate，slenderness ratio and concrete strength on the bearing capacity of the exially loaded specimens，and also analyzed theeffects of the recycled aggregate replacing rate，relative eccentricity and concrete strength on the bearing capacity ofthe eccentrically loaded specimens． In the analyzing process，the column section was fine-divided and different fiberswere defined to simulate the appropriate material properties． And then，a model of SＲＲAC column was establishedbased on the nonlinear beam-column element． The comparative analysis of the simulation results and the experimentalresults indicates that OpenSees Program can be used in simulating the loading process of steel reinforced recycledaggregate concrete columns effectively．
- steel reinforced recycled aggregate concrete /
- eccentric compression column /
- fiber model /
- static nonlinear analysis /
- numerical simulation

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参考文献(14)

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