柱端箍筋不同加密的钢筋混凝土柱的抗震性能分析

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发布时间：2020-01-06 00:00:00

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柱端箍筋不同加密的钢筋混凝土柱的抗震性能分析

Analysis of Seismic Performance of Reinforced Concrete Columns with Different Encryption of Column End Stirrups

２０19年第11期

钢筋混凝土柱；配箍率；滞回性能；耗能性能

RC column; Stirrup ratio; Hysteretic behavior; Energy dissipation capacity

２０19年第11期

10.19761/j.1000-4637.2019.11.070.05

桂科能基金项目(16-J-21-6)；桂科攻基金项目（0992027-8）。

张炳晖，杨玉红，赵亚涛，包恩和，陈宜虎

桂林理工大学土木与建筑工程学院，541004

张炳晖，杨玉红，赵亚涛，包恩和，陈宜虎

张炳晖,杨玉红,赵亚涛,等.柱端箍筋不同加密的钢筋混凝土柱的抗震性能分析[J].混凝土与水泥制品,2019(11):70-73+77.

ZHANG B H,YANG Y H,ZHAO Y T,et al.Analysis of Seismic Performance of Reinforced Concrete Columns with Different Encryption of Column End Stirrups[J].China Concrete and Cement Products,2019(11):70-73+77.

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摘要：为进一步明确柱端箍筋配置对钢筋混凝土柱的抗震性能影响，以柱端箍筋配置为主要研究参量，浇注4根钢筋混凝土柱试件。对各试件进行反复加载试验，研究各试件的滞回曲线、骨架曲线、承载能力、刚度退化及能量耗散系数等。结果表明，对柱端轴向0~250 mm范围内的箍筋进行加密，有增大试件的最大承载力和控制试件破坏之前的剪切变形量的作用；随着箍筋加密区的增大，试件的延性和耗能性能提升；随着加载循环次数的增大，各试件的承载力和刚度减小。 Abstract: In order to investigate the influence of different stirrup configurations at column ends on the seismic performance of RC column, the stirrup configurations at column ends was taken as the main research parameters, and four sets of RC column specimens were designed. Reversed cyclic loading tests were conducted on each specimen to study the hysteretic curve, skeleton curve, bearing capacity, stiffness degradation and energy dissipation coefficient. The results show that encrypting the stirrups in the range of 0~250 mm in the axial direction of the column ends can increase the maximum bearing capacity of specimens and control the degree of shear deformation before the failure of specimens. With the decrease of the stirrup spacing in stirrups encryption area at column ends, the ductility and energy dissipation capacity of the specimen increases. With the loading cycles increase, the bearing capacity and stiffness of each specimen decrease.

英文名 : Analysis of Seismic Performance of Reinforced Concrete Columns with Different Encryption of Column End Stirrups

刊期 : ２０19年第11期

关键词 : 钢筋混凝土柱；配箍率；滞回性能；耗能性能

Key words : RC column; Stirrup ratio; Hysteretic behavior; Energy dissipation capacity

刊期 : ２０19年第11期

DOI : 10.19761/j.1000-4637.2019.11.070.05

文章编号 :

基金项目 : 桂科能基金项目(16-J-21-6)；桂科攻基金项目（0992027-8）。

作者 : 张炳晖，杨玉红，赵亚涛，包恩和，陈宜虎

单位 : 桂林理工大学土木与建筑工程学院，541004

张炳晖，杨玉红，赵亚涛，包恩和，陈宜虎

张炳晖,杨玉红,赵亚涛,等.柱端箍筋不同加密的钢筋混凝土柱的抗震性能分析[J].混凝土与水泥制品,2019(11):70-73+77.

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引用本文

摘要：为进一步明确柱端箍筋配置对钢筋混凝土柱的抗震性能影响，以柱端箍筋配置为主要研究参量，浇注4根钢筋混凝土柱试件。对各试件进行反复加载试验，研究各试件的滞回曲线、骨架曲线、承载能力、刚度退化及能量耗散系数等。结果表明，对柱端轴向0~250 mm范围内的箍筋进行加密，有增大试件的最大承载力和控制试件破坏之前的剪切变形量的作用；随着箍筋加密区的增大，试件的延性和耗能性能提升；随着加载循环次数的增大，各试件的承载力和刚度减小。
Abstract: In order to investigate the influence of different stirrup configurations at column ends on the seismic performance of RC column, the stirrup configurations at column ends was taken as the main research parameters, and four sets of RC column specimens were designed. Reversed cyclic loading tests were conducted on each specimen to study the hysteretic curve, skeleton curve, bearing capacity, stiffness degradation and energy dissipation coefficient. The results show that encrypting the stirrups in the range of 0~250 mm in the axial direction of the column ends can increase the maximum bearing capacity of specimens and control the degree of shear deformation before the failure of specimens. With the decrease of the stirrup spacing in stirrups encryption area at column ends, the ductility and energy dissipation capacity of the specimen increases. With the loading cycles increase, the bearing capacity and stiffness of each specimen decrease.

关键词:

钢筋混凝土柱；配箍率；滞回性能；耗能性能

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柱端箍筋不同加密的钢筋混凝土柱的抗震性能分析

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