| 梁体变形计算体外预应力筋应力增量 |
| |
| 引用本文： | 朱正伟,刘东燕,彭文轩,董倩.梁体变形计算体外预应力筋应力增量[J].重庆大学学报(自然科学版),2008,31(11):1273-1276. |
| |
| 作者姓名： | 朱正伟 刘东燕 彭文轩 董倩 |
| |
| 作者单位： | [1]重庆大学土木工程学院,重庆400030 [2]重庆科技学院建筑工程学院,重庆400042 |
| |
| 基金项目： | 重庆市建委资助项目
，
重庆市自然科学基金
|
| |
| 摘 要： | 从结构变形分析着手,建立了不同布筋形式下简支梁在正常使用荷载阶段体外预应力筋伸长的计算模型,运用面向对象方法编制了基于能量原理的Windows应力增量计算程序SICPEM,并运用该程序计算了6根试验梁和体外预应力筋水平自由长度,计算的体外预应力筋应力增量与试验结果之比的均值为0.895,标准差为0.013;计算出水平体外预应力筋可以忽略二次效应的长度为梁高的10倍,与相关文献吻合良好.
|
| 关 键 词： | 体外预应力 体外预应力筋 应力增量 变形 |
Calculation models of stress increment of prestressing tendonsusing the deformation of externally prestressed beams |
| |
| ZHU Zheng-wei,LIU Dong-yan,PENG Wen-xuan,DONG Qian.Calculation models of stress increment of prestressing tendonsusing the deformation of externally prestressed beams[J].Journal of Chongqing University(Natural Science Edition),2008,31(11):1273-1276. |
| |
| Authors: | ZHU Zheng-wei LIU Dong-yan PENG Wen-xuan DONG Qian |
| |
| Institution: | ZHU Zheng-wei1,LIU Dong-yan1,PENG Wen-xuan1,DONG Qian2(1.College of Civil Engineering of Chongqing University,Chongqing 400045,P.R.China,2.Department of Civil Engineering , Architecture,Chongqing Universityof Science & Technology,Chongqing 400042,P.R.China) |
| |
| Abstract: | Based on structural deformation analysis,we developed calculation models of externally prestressing tendon stresses increments for simply supported beams on service loads.The Windows program SICPEM for calculating stress increments,based on energy principle,was programmed using the object-oriented method.Six beams results,tested by Tan,and the free length of externally straight tendons were recomputed by the program.The ratio of computed results to test results is 0.895,and the standard deviation is 0.013.F... |
| |
| Keywords: | external prestressing force externally prestressed tendons stress increment deformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《重庆大学学报(自然科学版)》下载免费的PDF全文 |
|
