| 预应力混凝土框架的反复荷载试验及有限元全过程滞回分析 |
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| 引用本文： | 苏小卒,朱伯龙.预应力混凝土框架的反复荷载试验及有限元全过程滞回分析[J].同济大学学报(自然科学版),1987(1). |
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| 作者姓名： | 苏小卒 朱伯龙 |
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| 作者单位： | 同济大学工程结构研究所
(苏小卒)，同济大学工程结构研究所(朱伯龙) |
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| 摘 要： | 本文进行了有粘结和无粘结预应力混凝土框架的反复荷载试验。结果表明,试件能够形成塑性铰;有粘结框架的耗能量大于无粘结框架,但无粘结框架的残余变形比有粘结框架小:试验后无粘结框架的预应力损失可略去不计,而有粘结框架在塑性铰处的预应力损失则达70%。本文提出的算法实现了预应力框架包括下降段在内的有限元全过程滞回分析,同时也可适用于非预应力框架。
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| 关 键 词： | 预应力混凝土 框架 粘结 滞后回线 有限单元法 非线性-分析 |
Cyclic Loading Test and Full Range FEM Analysis of Prestressed Concrete Frames |
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| Su Xiaozu,Zhu Bolong Research Institute of Engineering Structure.Cyclic Loading Test and Full Range FEM Analysis of Prestressed Concrete Frames[J].Journal of Tongji University(Natural Science),1987(1). |
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| Authors: | Su Xiaozu Zhu Bolong Research Institute of Engineering Structure |
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| Affiliation: | Su Xiaozu;Zhu Bolong Research Institute of Engineering Structure |
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| Abstract: | Bonded and unbonded prestressed concrete frames are tested and analysed up to failure. Results show that the specimens can form plastic hinges. The amount of energy dissipation of the bonded frame is larger than that of unbonded ones.Nevertheless, the residue displacement of the latter is smaller than that of theformer. After completion of the test, the prestress loss of unbonded frames isnegligible, whereas the prestress loss of the bonded frame can be as great as 70%in plastic hinge zones. The computation method proposed herein is capable of fullrange hysteresis analysis of PC and RC frames, including descending part. |
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| Keywords: | Prestressed concrete Frames Bonding Hysteresis loops Finite element method Non-linear-Analysis |
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