| 混合配筋预应力混凝土框架扁梁楼盖结构长期应力的试验研究 |
| |
| 引用本文： | 薛立红,徐金声,洪婉儿,林春哲. 混合配筋预应力混凝土框架扁梁楼盖结构长期应力的试验研究[J]. 建筑结构学报, 1997, 18(2): 34 |
| |
| 作者姓名： | 薛立红 徐金声 洪婉儿 林春哲 |
| |
| 作者单位： | 中国建筑科学研究院!北京,100013,中国建筑科学研究院!北京,100013,中国建筑科学研究院!北京,100013,中国建筑科学研究院!北京,100013 |
| |
| 基金项目： | 国家自然科学基金，建设部资助 |
| |
| 摘 要： | 本文通过二批框架扁梁1／3缩尺模型的结构长期性能及抗裂性的试验观测，探索了混合配筋预应力混凝土框架扁梁楼盖结构的截面长期应力的变化规律。试验结果表明混凝土的徐变和收缩将引起扁梁和密助板之间发生应力重分布．而普通钢筋含量高将降低其应力重分布的程度。
|
| 关 键 词： | 扁梁 长期应力 抗裂性 密助板 徐变 应力重分布 预应力混凝土 |
| 收稿时间： | 1997-04-05 |
| 修稿时间： | 1997-04-05 |
Experimental Research on Long-term Stress of Prestressed Concrete Frame Shallow-beam Floor with Unbonded Tendons and Nonprestressed Steel |
| |
| Xue Lihong,Xu Jinsheng,Hong Waner,Lin Chunzhe. Experimental Research on Long-term Stress of Prestressed Concrete Frame Shallow-beam Floor with Unbonded Tendons and Nonprestressed Steel[J]. Journal of Building Structures, 1997, 18(2): 34 |
| |
| Authors: | Xue Lihong Xu Jinsheng Hong Waner Lin Chunzhe |
| |
| Affiliation: | China Academy of Building Research |
| |
| Abstract: | Through the experiments of two groups of 1/3 scale models subjected to long - term serviceload, the variation of long - term stress of prestressed concrete frame shallow - beam floor withunbonded tendons and nonprestressed steel has been investigated. The test results show thatcreep and shrinkage in concrete cause the redistribution of stress between shallow beam and waffleslab, while the nonprestressed steel affects the degree of redistribution, the higher the amount ofnonprestressed steel, the lower the degree of redistribution. |
| |
| Keywords: | prestressed concrete shallow-beam waffle slab creep long-term stress stress redistribution crack resistance |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《建筑结构学报》浏览原始摘要信息 |
|
点击此处可从《建筑结构学报》下载免费的PDF全文 |
