型钢高强混凝土柱抗剪性能的试验与分析

李俊华; 王新堂; 薛建阳; 赵鸿铁

doi:10.13204/j.gyjz200703022

型钢高强混凝土柱抗剪性能的试验与分析

doi: 10.13204/j.gyjz200703022

1.
1 宁波大学,建筑工程与环境学院,宁波 315221;
2.
2 西安建筑科技大学,土木工程学院,西安 710055

基金项目:

宁波市博士(青年)基金项目(2005A620031);宁波市自然科学基金项目(2006A610096);浙江省教育厅科研计划项目(20061631)。

详细信息

作者简介:
李俊华男 1977年 7 月出生博士讲师

计量
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- 被引次数: 0
出版历程
- 收稿日期: 2006-10-20
- 刊出日期: 2007-03-20

EXPERIMENT AND ANALYSIS ON SHEAR PERFORMANCE OF STEEL REINFORCED HIGH - STRENGTH CONCRETE COLUMNS

1.
1 Collge of Architecture Engineering and Environment,Ningbo University Ningbo 315211;
2.
2 School of Civil Eng.,Xi'an Univ.of Arch.&Tech.Xi'an 710055

摘要

摘要: 通过对20个混凝土抗压强度为65.3~84.9MPa的型钢高强混凝土柱在轴力和水平荷载共同作用下的试验,对型钢高强混凝土柱的抗剪性能进行研究。试验主要考虑剪跨比、轴压比、配箍率和混凝土强度4个参数对构件抗剪性能的影响。由试验得到水平荷载下型钢高强混凝土柱的破坏形态,对剪跨比、轴压比、配箍率和混凝土强度对构件抗剪承载能力的影响进行分析,提出型钢高强混凝土柱抗剪承载能力的计算公式,该公式与我国现行混凝土结构设计规范中的斜截面承载能力计算公式相衔接,且计算结果偏于安全,可直接用于工程设计。
- 型钢高强混凝土 /
- 柱 /
- 抗剪性能 /
- 破坏形态 /
- 抗剪承载力
Abstract: Based on twenty specimens with concrete strength varied from 65. 3MPa to 84. 9MPa subjected to constant axialcompression force and horizontal load, the shear performance of steel reinforced high -strength concrete columns is studied.Four factors, that is shear span ratio, axial compression ratio, stirrup ratio and grade of concrete strength, are taken intoconsideration. Failure patterns of specimens are obtained and it is analyzed the influence of shear span ratio, axialcompression ratio, stirrup ratio and grade of concrete strength on shear performance of steel reinforced high -strengthcolumns. A calculating formula for shear bearing capacity of steel reinforced high -strength columns is presented. Thisformula is consistent with the formula for shear strength in the current code ( GB 50010 -2002) , whose calculating resultstend to be safe.
- steel reinforced high -strength concrete /
- column /
- shear performance /
- failure patterns /
- shear bearing capacity