| 无粘结预应力筋极限应力研究 |
| |
| 引用本文： | 罗小勇,易伟建,余志武. 无粘结预应力筋极限应力研究[J]. 湖南大学学报(自然科学版), 2000, 27(6): 91-96 |
| |
| 作者姓名： | 罗小勇 易伟建 余志武 |
| |
| 作者单位： | 1. 湖南大学土木工程学院,湖南,长沙,410082
2. 中南大学土木建筑工程学院,湖南,长沙,410075 |
| |
| 基金项目： | 浙江省湖州市自然科学基金，99JJY20056， |
| |
| 摘 要： | 对竖向和水平荷载试验中１９榀ＵＰＣ框架梁中的ＵＰＳ的应力变化与极限应力进行探讨，并结合预应力混凝土结构非线性分析模型，定性定量分析了结构中ＵＰＳ极限应力的主要影响因素，如荷载形式、配箍率、综合配筋力比和跨高比，并提出ＵＰＳ极限应力计算的修正公式，更适合于ＵＰＣ框架在地震设防区的使用。
|
| 关 键 词： | 无粘结 预应力混凝土 极限应力 预应力筋 承载力 |
| 修稿时间： | 2000-04-30 |
Research on Ultimate Stress of Unbonded Prestressed Steel |
| |
| LUO Xiao-yong,YI Wei-jian,YU Zhi-wu. Research on Ultimate Stress of Unbonded Prestressed Steel[J]. Journal of Hunan University(Naturnal Science), 2000, 27(6): 91-96 |
| |
| Authors: | LUO Xiao-yong YI Wei-jian YU Zhi-wu |
| |
| Abstract: | The stress variation and ultimate stress of UPS in 19 UPC frames under vertical or horizontal cyclic loadings has been discussed.The principal factors affecting ultimate stress of UPS such as types of loading,transverse steel ratio of existing hoops,composite reinforced force ratio,span-high ratio have been analyzed in both qualitative and quantitative way based on the test results combined with nonlinear analyzing model of prestressed concrete structures.A modified formula used to calculate the ultimate stress of UPS,has also been proposed,which is more applicable to regions of earthquake. |
| |
| Keywords: | unbond prestressed concrete ultimate stress finite element beam model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《湖南大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《湖南大学学报(自然科学版)》下载全文 |
