首页 | 本学科首页   官方微博 | 高级检索  
     检索      

钢骨高强混凝土短柱轴压力系数限值
引用本文:贾金青,孙洪梅,李大永.钢骨高强混凝土短柱轴压力系数限值[J].大连理工大学学报,2002,42(2):218-222.
作者姓名:贾金青  孙洪梅  李大永
作者单位:1. 大连理工大学,土木工程系,辽宁,大连,116024;清华大学,土木工程系,北京,100084
2. 大连理工大学,土木工程系,辽宁,大连,116024
3. 大连市建委,招标处,辽宁,大连,116001
摘    要:通过19根剪跨比为1.5的试件对钢骨高强混凝土短柱的力学性能进行了试验研究,分析了短柱的主要破坏形态和轴压力系数、配箍率、含钢率对钢骨高强混凝土短柱延性的影响,并得出了相应的影响因素和延性间的关系曲线。发现钢骨高强混凝土短柱位移延性随轴压力系数的减小和配箍率的增加而增大;但配箍率增加到一定值后,延性的增速减缓;延性也随着含钢率的增加而增加。鉴于现行国家规范中没有规定钢骨高强混凝土短柱的轴压力系数限值,根据试验结果,提出了满足一定延性的钢骨高强混凝土短柱的轴压力系数限值。

关 键 词:抗震延性  钢骨高强混凝土短柱  轴压力系数限值  配箍率  力学性能  破坏形态
文章编号:1000-8608(2002)02-0218-05

Limited values on axial compression ratio of steel reinforced high-strength concrete short columns
JIA Jin\|qing ,SUN Hong\|mei ,LI Da\|yong.Limited values on axial compression ratio of steel reinforced high-strength concrete short columns[J].Journal of Dalian University of Technology,2002,42(2):218-222.
Authors:JIA Jin\|qing    SUN Hong\|mei  LI Da\|yong
Institution:JIA Jin\|qing 1,2,SUN Hong\|mei 1,LI Da\|yong 3
Abstract:The experimental research on the mechanical performance is carried out through 19 steel reinforced high\|strength concrete short columns. The main factors such as axial compression ratio, stirrup ratio, steel ratio and shear span ratio, which affect the ductility of steel reinforced high\|strength concrete short columns, are analyzed. The failure characteristics of steel reinforced high\|strength concrete short columns are also analyzed . Some results are obtained through the test. It is shown that the ductility of steel reinforced high\|strength concrete short columns increases with the reducing of the axial compression ratio and the increasing of the stirrup ratio. But when the stirrup ratio is raised to a certain value, the ductility increases slowly with the increasing of the stirrup ratio. The ductility also increases with the increasing of the steel ratio. The limit values of the axial compression ratio of steel reinforced high\|strength concrete short columns are reached, which satisfy a certain requirement of ductility. The results are significant to revise Chinese code for design and construction of steel reinforced high\|strength concrete.
Keywords:short columns  ductility/steel reinforced high\|strength concrete  axial compression ratio  stirrup ratio
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号