| 预应力钢-混凝土组合梁非线性有限元解法 |
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| 引用本文： | 郑则群,房贞政,宗周红.预应力钢-混凝土组合梁非线性有限元解法[J].哈尔滨工业大学学报,2004,36(2):218-222. |
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| 作者姓名： | 郑则群 房贞政 宗周红 |
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| 作者单位： | 福州大学,结构工程研究所,福建,福州,350002 |
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| 基金项目： | 福建省自然科学基金(E0210016). |
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| 摘 要： | 为了研究预应力钢-混凝土组合梁受力全过程的力学性能，编制了预应力组合梁非线性有限元程序，考虑了材料非线性及几何非线性，模拟了连接件传力机理，能较精确地预见和分析加载受力过程中预应力增量、界面相对滑移、组合梁极限承载力等受力性能，并进行了算例验证，结果表明，该有限元程序正确。
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| 关 键 词： | 预应力 钢-混凝土组合梁 非线性 有限元 剪力连接件 |
| 文章编号： | 0367-6234(2004)02-0218-05 |
| 修稿时间： | 2003年10月18 |
Finite-element nonlinear method of prestressed steel- concrete composite beams |
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| ZHENG Ze-qun,FANG Zhen-zheng,ZONG Zhou-hong.Finite-element nonlinear method of prestressed steel- concrete composite beams[J].Journal of Harbin Institute of Technology,2004,36(2):218-222. |
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| Authors: | ZHENG Ze-qun FANG Zhen-zheng ZONG Zhou-hong |
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| Abstract: | A nonlinear finite - element program has been established based on relevant literature prestressed steel-concrete beam to simulate static behaviors through all the loading range including prestressing stage and loading stage with its perfect functions. The material nonlinearity and geometrical nonlinearity are considered and the shear connectors are modeled in the program, the statie behaviors such as the increment of prestress, the slip at the interface, the ultimate flexural strength are predicted and analyzed by the program. Tests are carried out to testify the program. |
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| Keywords: | prestress steel - concrete composite beams shear connectors nonlinear finite - element |
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