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| 预应力筋张拉过程的数值模拟与监测 | |
| 引用本文： | 熊世树,罗后兵,程稳征,姜文杰. 预应力筋张拉过程的数值模拟与监测[J]. 华中科技大学学报(城市科学版), 2007, 24(1): 17-20 |
| 作者姓名： | 熊世树 罗后兵 程稳征 姜文杰 |
| 作者单位： | 1. 华中科技大学,土木工程与力学学院,湖北,武汉,430074;华中科技大学,控制结构湖北省重点实验室,湖北,武汉,430074 2. 中铁十三局集团,第三工程有限公司,辽宁,盘锦,124021 3. 武汉新雅集团有限公司,湖北,武汉,430061 |
| 摘 要： | 预应力筋的张拉顺序及张拉控制,关系到预应力结构施工阶段和使用阶段的安全。针对华中科技大学中心体育馆看台斜梁的预应力筋张拉,利用AN SY S有限元软件对张拉过程进行数值模拟分析,研究张拉顺序对混凝土预压应力和反拱值的影响,并与现场实测结果进行了对比分析。有限元分析与实测表明,对预应力筋分束张拉工艺可行,周边梁的预应力筋张拉对已张拉梁的预压应力及反拱影响不大,实测结果比考虑损失的有限元结果约小10%~20%。 |
| 关 键 词： | 预应力结构 有限元分析 张拉监测 预应力损失 |
| 文章编号： | 1672-7037（2007）01-0017-04 |
| 收稿时间： | 2006-07-06 |
| 修稿时间： | 2006-07-06 |
Numerical Simulation and Monitoring of Prestressing Tendon Process |
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| XIONG Shi-shu,LUO Hou-bing,CHENG Wen-zheng,JIANG Wen-jie. Numerical Simulation and Monitoring of Prestressing Tendon Process[J]. Journal of Huazhong University of Science and Technology, 2007, 24(1): 17-20 | |
| Authors: | XIONG Shi-shu LUO Hou-bing CHENG Wen-zheng JIANG Wen-jie |
| Abstract: | The tension order and tension control of prestressing tendons are very important for the prestressed concrete structure in the construction and service stages.Based on the analytical software ANSYS,the influence of the sequence on stress and deformation during the tensioning process was investigated.The analytical results were compared with the measured ones of local site.The study indicates that it is possible to tension the prestressing tendons one by one,and the tensioning around the tensioned beam has no much influence on its stress and deformation.In other way,the measured values are 10%~20% lower than the analytical ones. |
| Keywords: | prestressed structure finite element analysis tension detection loss of prestress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
