[1]罗许国,刘岱鑫.钢筋活性粉末混凝土梁的疲劳性能试验研究[J].西安建筑科技大学学报(自然科学版),2016,48(04):484-488.[doi:10.15986/j.1006-7930.2016.08. 004]
 LUO Xuguo,LIU Daixin.Research on the fatigue performance of reinforced reactive powered concrete beam [J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(04):484-488.[doi:10.15986/j.1006-7930.2016.08. 004]
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钢筋活性粉末混凝土梁的疲劳性能试验研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年04期
页码:
484-488
栏目:
出版日期:
2016-08-31

文章信息/Info

Title:
Research on the fatigue performance of reinforced reactive powered concrete beam
文章编号:
1006-7930(2016)04-0484-05
作者:
 罗许国刘岱鑫
(湖南科技大学 土木工程学院,湖南 湘潭411201)
Author(s):
LUO Xuguo LIU Daixin
(School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)
关键词:
高强度钢筋活性粉末混凝土梁静力试验疲劳试验疲劳性能
Keywords:
high strength reinforcement reactive powered concrete beams static test fatigue test fatigue property
分类号:
U443.35
DOI:
10.15986/j.1006-7930.2016.08. 004
文献标志码:
A
摘要:
通过对2根具有相同截面和配筋率的钢筋活性粉末混凝土梁的静力和等幅疲劳试验,研究了以出现概率为98.11%的桥梁应力幅值作用下,钢筋活性粉末混凝土梁裂缝、跨中挠度、受压区边缘RPC应变和钢筋应变随疲劳加载次数的变化规律. 试验结果表明,采用出现概率为98.11%的桥梁应力幅值进行疲劳加载时,钢筋活性粉末混凝土梁的疲劳寿命达200万次以上. 其裂缝宽度、跨中挠度、受压区边缘RPC应变以及钢筋应变均随着疲劳加载次数的增加均呈现出2阶段发展规律,且200万次疲劳加载结束时的测量值分别为0.12mm、0.438mm、1 010 με和987 με,远小于静载破坏时的相应值,钢筋活性粉末混凝土梁体现出较好的耐疲劳性能.
Abstract:
Based on the static and fatigue tests of two reinforced reactive powered concrete beams,crack, mid-span deflection, strains of concrete in compressive zone and strains of steel bars of the reinforced reactive powered concrete beams changed with the fatigue loading times were studied under bridges stress amplitude with occurrence probability of 98.11%.Test results showed that the fatigue life of reinforced reactive powered concrete beams reached up to 200×104. The crack width, mid-span deflection, strain of concrete in compressive zone and strains of steel bars had the laws of two stage development, and when fatigue tests were over, the value of them were 0.12mm, 6.438mm, 1010με and 987με less than the results of static test, showing best anti-fatigue performance

参考文献/References:

References
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备注/Memo

备注/Memo:
收稿日期:2015-07-06      修改稿日期:2016-07-30
基金项目:湖南省教育厅项目(14A048) 和湖南省自然科学基金(14JJ7056)资助
作者简介(1969(),男,博士,主要从事结构研究E-mail: luodakai2003@aliyun.com.
更新日期/Last Update: 2016-10-30