低周往复荷载下混杂纤维混凝土梁柱结构试验及理论研究  

Experimental and Theoretical Study on Hybrid Fiber Reinforced Concrete Beam-column Structure Under Low-cyclic Load

作　　者：钟晨 温学涛[1,2] 胡元超 朱旭峰 ZHONG Chen;WEN Xuetao;HU Yuanchao;ZHU Xufeng(Anhui Xinhua University,Hefei,Anhui 230088,China;Key Laboratory of Building Structure of Anhui Higher Education Institute,Anhui Xinhua University,Hefei,Anhui 230088,China;China Energy Engineering Group Anhui No.1 Electric Power Construction Co.,Ltd,Anhui,Hefei 230088,China)

机构地区：[1]安徽新华学院城市建设学院,安徽合肥230088 [2]建筑结构安徽省普通高校重点实验室(安徽新华学院),安徽合肥230088 [3]中国能源集团安徽电力建设第一工程有限公司,安徽合肥230088

出　　处：《中州大学学报》2022年第5期114-118,共5页Journal of Zhongzhou University

基　　金：安徽高等学校省级自然科学重点研究项目(KJ2019A0883);建筑结构安徽省普通高校重点实验室科研项目(KLBSZD202104);安徽省大学生创新训练计划项目(AH202112216112,AH202112216115);国家级大学生创新训练计划项目(202212216008,202212216005)。

摘　　要：不同纤维含量下的钢-PVA混杂纤维混凝土现浇梁柱节点进行低周反复荷载试验,通过对其骨架曲线、能量耗散以及钢筋应变等分析,发现对比普通混凝土试件,钢-PVA混杂纤维混凝土试件在核心区的塑性性能和耗能能力均显著提高,且钢纤维对节点强度和刚度的增强作用优于PVA纤维;对比单一纤维混凝土试件结果表明,合理配合比设计下的混杂纤维混凝土试件可获得更好的抗震性能。The steel-PVA hybrid fiber reinforced concrete cast-in-place beam-column joints with different fiber content were tested under low cyclic load.Through the analysis of its skeleton curve,energy dissipation and reinforcement strain,it was found that compared with ordinary concrete specimens,the plastic performance and energy dissipation capacity of steel-PVA hybrid fiber reinforced concrete specimens in the core area were significantly improved,the enhancement effect of steel fiber on joint strength and stiffness is better than that of PVA fiber.Compared with the results of single fiber reinforced concrete specimens,the results show that the hybrid FIBER reinforced concrete specimens with reasonable mix ratio design can obtain better seismic performance.

关 键 词：现浇纤维混凝土 梁柱节点 低周反复荷载试验 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程]