摘要
通过多项对比试验,研究存在不同缺陷类型钢柱在预加静态轴力的作用下,受到横向冲击时的垮塌行为和能量的吸收作用.通过实验中轴向位移、轴向力和加速度的测量,分析了缺陷钢柱的能量吸收,并通过高速摄像机的照片验证了实验结果.研究表明:缺陷钢柱在预加轴力的作用下受横向冲击后,试件的缺陷对塌陷后试件的塑性变形有十分明显的影响.
Through a number of comparative tests, the collapse behavior and energy absorption of steel columns with different types of defects under the action of pre-static axial force and transverse impact are studied. Through the measurement of axial displacement, axial force and acceleration in the experiment, the energy absorption of the defective steel column is analyzed, and the experimental results are verified by the high-speed camera. Therefore, it can be concluded that after the transverse impact of the pre-loaded axial force on the steel column, the defects of the specimen have a very obvious difference in the plastic deformation of the specimen after collapse.
作者
张亚东
ZHANG Yadong(Shandong Hailong Construction Technology Company Limited,Jining,Shandong 272000,China)
出处
《湖南城市学院学报（自然科学版）》
CAS
2020年第1期11-14,共4页
Journal of Hunan City University:Natural Science
关键词
冲击荷载
预加轴力
缺陷钢柱
能量吸收
impact load
pre-axial force
defective steel column
energy absorption
