[1]薛建阳,柯晓军,陈宗平,等.型钢高强混凝土柱保护层厚度确定方法[J].西安建筑科技大学学报:自然科学版,2014,(01):1-5.[doi:10.15986/j.1006-7930.2014.01.001]
 XUE Jianyang,KE Xiaojun,CHEN Zongping,et al.Determination methods of concrete cover thickness of steel reinforced high-strength concrete columns[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,(01):1-5.[doi:10.15986/j.1006-7930.2014.01.001]
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型钢高强混凝土柱保护层厚度确定方法()
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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:
期数:
2014年01期
页码:
1-5
栏目:
出版日期:
2014-02-28

文章信息/Info

Title:
Determination methods of concrete cover thickness of steel reinforced high-strength concrete columns
文章编号:
1006-7930(2014)01-0001-05
作者:
薛建阳1柯晓军1陈宗平2应武挡2
(1.西安建筑科技大学土木工程学院,陕西 西安 710055; 2. 广西大学土木建筑工程学院,广西 南宁 530004)
Author(s):
XUE Jianyang1 KE Xiaojun1 CHEN Zongping2 YING Wudang2
(1. School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China; 2. College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China)
关键词:
型钢混凝土 高强混凝土 保护层 板弹塑性稳定理论 力扩散原理
Keywords:
steel reinforced concrete high-strength concrete concrete cover plate elastic-plastic theory force diffusion principle
分类号:
TU398
DOI:
10.15986/j.1006-7930.2014.01.001
文献标志码:
A
摘要:
混凝土保护层的厚度会直接影响构件的破坏形态、承载力、刚度以及耐久性能等.结合型钢高强混凝土柱的剪切黏结破坏特征,以混凝土保护层为对象,根据板弹塑性稳定理论和力扩散原理分别对其受压屈曲失稳和临界开裂时的最小保护层厚度进行理论推导,提出合理的计算公式,计算结果与已有试验结果相吻合.结合工程实际,混凝土保护层厚度还应满足我国现行《混凝土结构设计规范》(GB 50010-2010)中最小保护层厚度的构造要求,并建议型钢高强混凝土构件的最小配箍率宜取0.3%.
Abstract:
Thickness of the concrete cover has direct impact on the failure pattern, bearing capacity, rigidity and durability of the concrete members. Shear bond failure of steel reinforced high-strength concrete columns is analyzed in this paper. The concrete cover thickness calculation formulas of concrete compressive buckling and critical cracking are derived by using plate elastic-plastic theory and force diffusion principle. The calculated result of concrete cover thickness agrees with the test result. In application, the concrete cover thickness should meet the structural requirement of minimum concrete cover thickness in accordance with Code for Design of Concrete Structures of China. Besides, it is suggested that the stirrup ratio of steel reinforced high-strength concrete members be greater than or equal to 0.3%.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金项目(51268004)
收稿日期:2013-09-03 修改稿日期:2014-01-25
作者简介:薛建阳(1970-),男,博士,教授,主要从事钢与混凝土组合结构及工程结构抗震方向的研究.E-mail: jianyang_xue@163.com
更新日期/Last Update: 2015-10-05