Influence of Strain Rates on Reinforced Concrete Column

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Influence of Strain Rates on Reinforced Concrete Column

更新时间：2025-12-11

- Influence of Strain Rates on Reinforced Concrete Column
- Vol. 29, Issue 6, Pages: 668-675(2009)
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  CLC： U375.3
- Published：2009
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[1]肖诗云,许东.应变率效应对钢筋混凝土柱的影响[J].防灾减灾工程学报,2009,29(06):668-675.

肖诗云, 许东. Influence of Strain Rates on Reinforced Concrete Column[J]. 2009, 29(6): 668-675.
[1]肖诗云,许东.应变率效应对钢筋混凝土柱的影响[J].防灾减灾工程学报,2009,29(06):668-675. DOI：

肖诗云, 许东. Influence of Strain Rates on Reinforced Concrete Column[J]. 2009, 29(6): 668-675. DOI：

摘要

根据混凝土单轴动力特性试验

引入了应变率的影响

对规范给出的混凝土应力—应变关系表达式进行了修正;针对只考虑混凝土的动态特性和既考虑混凝土的动态特性、也考虑钢筋的动态特性这两种情况

利用修正的表达式对钢筋混凝土柱的动态特性进行了数值分析。结果表明

混凝土的动态特性对于大偏心柱的承载力影响很小

但对于小偏心柱的极限承载力影响显著;钢筋的动态特性对大、小偏心柱的极限弯矩和极限曲率都有明显的影响。本文还分析了柱的极限弯矩、极限曲率和极限轴力随偏心距变化的规律。

Abstract

According to the uniaxial dynamic experimental results of concrete

stress-strain relationship of concrete given by design code of reinforced concrete is modified taking into account the effect of strain rates of concrete.Then dynamic characteristics of reinforced concrete column are studied using the modified expression.Two situations are considered:（1） only dynamic characteristics of concrete are considered（2） dynamic characteristics of concrete and steel are considered.The result of numerical analysis shows that dynamic characteristics of concrete have little effect on the limit moment of large eccentricity column but have considerable effect on the limit moment of small eccentricity column.Nevertheless

dynamic characteristics of steel have obvious effect on limit moment and limit curvature of both large eccentricity column and small eccentricity column.At the same time

the change rule of limit moment

limit curvature and limit axial force varying with eccentric distance are also studied.

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references

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应变率对混凝土抗压特性的影响 [J]. 肖诗云,林皋,逯静洲,王哲. 哈尔滨建筑大学学报 . 2002(05)

应变率对混凝土抗拉特性影响 [J]. 肖诗云,林皋,王哲,逯静洲. 大连理工大学学报 . 2001(06)

GB 50010-2002. 混凝土结构设计规范 [S]. 2002

混凝土结构非线性分析[M]. 中国建筑工业出版社 , 梁兴文, 2007

R/C Space Frames with Column Axial Force and Biaxial Bending Moment Interactions [J] . Shing&hyphen,Sham Lai,George T. Will. Journal of Structural Engineering . 1986 (7)

Model for Inelastic Biaxial Bending of Concrete Members [J] . Shing&hyphen,Sham Lai,George T. Will,Shunsuke Otani. Journal of Structural Engineering . 1984 (11)

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