装配式建筑框架柱抗冲击性能试验研究  

EXPERIMENTAL STUDY ON IMPACT RESISTANCE OF FRAME COLUMNS IN PREFABRICATED BUILDING

作　　者：杜会光 Du Hui-guang

机构地区：[1]中铁一院集团新疆铁道勘察设计院有限公司,乌鲁木齐830000

出　　处：《建筑技术开发》2024年第1期140-142,共3页Building Technology Development

摘　　要：为研究装配式建筑框架柱在受到冲击荷载作用后的受力和变形演变过程,制备了现浇框架柱和装配式框架柱进行抗冲击性能对比试验,研究装配式框架柱受冲击力、冲击力持续时间、钢筋应变和混凝土应变的变化规律。结果表明:随着冲击速度的增加,冲击力峰值也随之增加,而冲击力持续时间则相应的降低;装配式轴压比的增加,会明显加大冲击力,而冲击力持续时间则相应降低;随着冲击速度的增加,装配式框架柱钢筋应变最大值均不断增加,轴压比的增加对钢筋应变最大值影响不大。In order to study the stress and deformation evolution process of frame columns of prefabricated building after being subjected to impact load,comparative tests on impact resistance of cast-in-place frame columns and prefabricated frame columns were conducted.The results show that as the impact speed increases,the peak value of the impact force also increases,and the duration of the impact force correspondingly decreases.An increase in the assembled axial compression ratio will significantly increase the impact force,while the duration of the impact force will correspondingly decrease.As the impact speed increases,the maximum strain of the steel bars in prefabricated frame columns continuously increases,and the increase in axial compression ratio has little effect on the maximum strain of the steel bars.

关 键 词：装配式建筑 框架柱 抗冲击性能 室内试验 冲击力 钢筋应变 

分 类 号：TU37[建筑科学—结构工程]