全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

考虑双向水平循环加载对混凝土筒体性能影响的试验研究

Keywords: 混凝土核心筒,高层建筑,抗震性能,结构试验

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了研究混凝土核心筒的抗震性能,采用相同的2个高宽比为3.14、设计轴压比为0.4的混凝土核心筒大型试件进行了水平单向和双向拟静力试验,研究了双向加载对于核心筒的破坏形态、承载能力、变形性能、刚度退化、滞回耗能等方面的影响.结果表明:试件在水平单向和双向反复加载下的最终破坏形态均为底部钢筋受拉屈服后混凝土压溃的整体弯曲破坏.与单向加载相比,双向加载的影响使筒体的承载力和极限变形能力明显降低,刚度退化加剧;双向加载时筒体耗能较大是由墙肢底部关键区域提前破损和失效所致,而连梁转动耗能小于单向加载时的耗能.

References

[1]  邱法维,李文峰,潘鹏,等.钢筋混凝土柱的双向拟静力实验研究[J].建筑结构学报,2001,22(5):26-31.QIU Fa-wei,LI Wen-feng,PAN Peng,et al.Quasi-static test research of reinforced concrete column under biaxial loading[J].Journal of Building Structures,2001,22(5):26-31.(in Chinese)
[2]  BOUSIAS S N.Load-path effects in column biaxial bending with axial force[J].Journal of Engineering Mechanics,ASCE,1995,121(5):596-605.
[3]  KIM Jin-keun,LEE Sang-soon.The behavior of reinforced concrete columns subjected to axial force and biaxial bending[J].Engineering Structure,2000,23:1518-1528.
[4]  李宏男,王强,李兵.钢筋混凝土框架柱多维恢复力特性的试验研究[J].东南大学学报:自然科学版,2002,32(5):728-732.LI Hong-nan,WANG Qiang,LI Bing.Experiments on characteristics of multi-dimensional restoring forces of reinforced concrete frame columns[J].Journal of Southeast University:Natural Science Edition,2002,32(5):728-732.(in Chinese)
[5]  杜修力,贾鹏,赵均.水平双向加载条件下钢筋混凝土核心筒抗震性能试验研究[J].建筑结构学报,2012,33(10):47-52.DU Xiu-li,JIA Peng,ZHAO Jun.Seismic behavior of reinforced concrete core walls under biaxial cyclic lateral loading[J].Journal of Building Structures,2012,33(10):47-52.(in Chinese)
[6]  许洋.水平双向循环加载下混凝土核心筒性能的试验研究[D].北京:北京工业大学建筑工程学院,2013.XU Yang.Experimental research on the performance of concrete core wall under biaxially cyclic loadings[D].Beijing:College of Architecture and Civil Engineering,Beijing University of Technology,2013.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133