| 体外预应力混凝土简支梁全过程分析 |
| |
| 引用本文： | 王彤,王宗林,张树仁.体外预应力混凝土简支梁全过程分析[J].南京理工大学学报(自然科学版),2003,27(3):318-322. |
| |
| 作者姓名： | 王彤 王宗林 张树仁 |
| |
| 作者单位： | 哈尔滨工业大学交通科学与工程学院,哈尔滨,150090 |
| |
| 摘 要： | 该文在分析体外预应力钢筋与混凝土主梁变形的基础上，通过截面内力平衡方程和变形协调关系，对体外预应力混凝土梁进行了从加载到破坏的全过程分析，得到了极限状态下体外筋的极限应力和混凝土梁的极限抗弯强度。利用该文介绍的计算方法，可以考虑不同的荷载形式、不同的截面形式及不同的普通钢筋用量等因素对主梁极限状态的影响，并能得到中间过程及破坏阶段混凝土、普通钢筋、预应力钢筋的应变和应力。通过该文理论得到的计算结果得到了试验的验证。
|
| 关 键 词： | 体外 预应力混凝土 桥梁 全过程分析 |
| 修稿时间： | 2001年10月19 |
All Stage Analysis of Externally Prestressed Concrete Beam |
| |
| WangTong,WangZonglin,ZhangShuren.All Stage Analysis of Externally Prestressed Concrete Beam[J].Journal of Nanjing University of Science and Technology(Nature Science),2003,27(3):318-322. |
| |
| Authors: | WangTong WangZonglin ZhangShuren |
| |
| Abstract: | Based on the analysing deformation of external prestressed concrete beam, the total process from loading stage to fail stage was analyzed for external prestressed concrete beam by means of section force equation and deform accordance, and the ultimate stress of the tendon and the ultimate strength of the concrete beam were found out. With the abore mentioned approach,such factors as influence of load type, section type and the quantity of reinforcements on beam limits can be considered,and the strain and stress of concrete, reinforcement, tendon can be obtained in the process of loading. The theoretical calculation results were verified by the testing results. |
| |
| Keywords: | external prestressing concrete bridge complete process analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
