| 题目：圆形纤维增强塑料缠绕混凝土柱在持续轴向压缩下的面向设计的模型分析 |
| |
| 作者姓名： | Hui LIU Ming-hua HE Jia GUO Yong-jiu SHI Zhao-xin HOU Lu-lu LIU |
| |
| 作者单位： | Department of Civil Engineering, Tsinghua University;Central Research Institute of Building and Construction Co., Ltd., China Metallurgical Group Corporation;Research Institute of Highway of China Ministry of Transport;Institute of Chemical Machinery, Zhejiang University;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics |
| |
| 基金项目： | the National Natural Science Foundation of China，the Postdoc-toral Science Foundation Project of China，the Scholarship Council Joint PhD Program of China，the Natural Science Foundation of Beijing，China |
| |
| 摘 要： | 目的：在实际工程服役过程中，纤维增强塑料（FRP）约束混凝土柱在遭遇极限荷载前往往已经经历了长时间的轴压荷载作用。因此，相比其短期力学性能，本文旨在研究FPR约束混凝土柱在长期荷载作用后的力学性能。创新点：1.考虑长期轴压荷载作用，提出一种轴压作用下圆形截面 FRP 约束混凝土柱的长期变形分析模型；2.提出了长期轴压作用后的FRP约束混凝土本构模型，从本构关系的角度描述两个方面的影响机理。方法：运用混凝土和FRP徐变的长期变形分析迭代计算方法（图3）。结论：1.提出的长期变形分析模型实现了对FRP约束混凝土柱任意目标时刻的应力和应变状态的高效、准确预测；2.将提出的本构模型嵌入有限元软件中，有效地实现对长期轴压作用的考虑；3.基于OpenSees有限元软件，验证了长期变形分析模型和本构模型的有效性和准确性。
|
| 关 键 词： | FRP约束混凝土柱 长期荷载 长期变形 徐变 本构模型 |
Design-oriented modeling of circular FRP-wrapped concrete columns after sustained axial compression |
| |
| Hui LIU,Ming-hua HE,Jia GUO,Yong-jiu SHI,Zhao-xin HOU,Lu-lu LIU.Design-oriented modeling of circular FRP-wrapped concrete columns after sustained axial compression[J].Journal of Zhejiang University Science,2015(1):47-58. |
| |
| Authors: | Hui LIU Ming-hua HE Jia GUO Yong-jiu SHI Zhao-xin HOU Lu-lu LIU |
| |
| Institution: | 1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China
2. Central Research Institute of Building and Construction Co., Ltd., China Metallurgical Group Corporation, Beijing 100023, China |
| |
| Abstract: | |
| |
| Keywords: | Fiber-reinforced plastic (FRP) Sustained load Column Long-term deformation Creep Constitutive model Axial compression |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
