装配式建筑组合梁端预埋槽钢节点静力性能仿真研究
Simulation Study on Static Properties of Embedded Channel Steel Joints at the End of Composite Beams in Prefabricated Buildings
谢亮 1史君2
作者信息
- 1. 西藏职业技术学院,西藏 拉萨 850000
- 2. 杭州市建设工程管理集团有限公司,浙江 杭州 310008
- 折叠
摘要
为分析装配式组合梁端预埋槽钢节点的静力性能,文中通过静力试验,模拟分析预埋槽钢节点的破坏模式、承载力、刚度及应变变化规律.结果表明,当槽钢厚度从100 mm增加至300 mm时,试件最大弯矩值提升201.9%,初始刚度提升92.9%;当槽钢预埋深度降低、箍筋间距降低、增设跨中空腔、槽钢无偏心距、槽钢厚度降低时,最大弯矩降低;当槽钢预埋深度增加、箍筋间距降低、无跨中空腔、槽钢存在偏心距、槽钢厚度增加时,试件初始刚度增加.装配式组合梁预埋槽钢节点刚度随着腹板厚度的降低而降低.
Abstract
In order to analyze the static properties of prefabricated composite beam end embedded channel steel joints,the failure mode,bear-ing capacity,stiffness and strain variation of embedded channel steel joints were simulated by static test.The results show that when the thick-ness of the channel steel increases from 100 mm to 300 mm,the maximum bending moment of the specimen increases by 201.9%and the ini-tial stiffness increases by 92.9%.The maximum bending moment decreases when the embedded depth of the channel steel is reduced,the dis-tance between the stirrup is reduced,the cross-hollow cavity is added,the channel steel has no eccentricity and the thickness of the channel steel is reduced.When the embedment depth of the channel steel increases,the distance between the stirrup decreases,there is no span cavi-ty,the eccentricity of the channel steel exists,and the thickness of the channel steel increases,the initial stiffness of the specimen increases.The stiffness of embedded channel steel joints of prefabricated composite beams decreases with the decrease of web thickness.
关键词
装配式结构/组合梁/槽钢节点/力学性能Key words
Prefabricated structure/Composite beam/Channel steel joint/Mechanical property引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据