玻璃纤维增强复合材料-活性粉末混凝土组合构件弯剪承载力分析  

Analysis of flexural and shear strength of GFRP-RPC composite members

作　　者：祝明桥[1,2] 孙涛 王磊佳[1,2] 谭一萍 ZHU Mingqiao;SUN Tao;WANG Leijia;TAN Yiping(School of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Hunan Engineering Research Center for Intelligently Prefabricate Passive House,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201 [2]湖南省智慧建造装配式被动房工程技术研究中心,湖南科技大学,湖南湘潭411201

出　　处：《湘潭大学学报（自然科学版）》2024年第6期106-116,共11页Journal of Xiangtan University(Natural Science Edition)

基　　金：国家自然科学基金(51578236);湖南省自然科学基金(2020JJ4313);湖南省重点实验室开放基金项目(19K033)。

摘　　要：为研究玻璃纤维增强复合材料(GFRP)-活性粉末混凝土(RPC)组合构件抗弯承载力和抗剪承载力的计算方法,对GFRP-RPC组合构件进行了静载试验研究.通过比较GFRP-RPC组合构件试验数据,根据材料本构关系和平截面假定,给出了组合构件抗弯承载力以及最小配筋率和最大配筋率的计算方法.对比试验和现有规范,给出了GFRP-RPC组合构件在受弯承载过程中3个阶段的抗弯承载力计算公式以及GFRP-RPC组合构件抗剪承载力计算公式,研究了GFRP-RPC组合受弯构件的最小和最大配筋率.研究结果表明,采用该文提出的抗剪公式得到的理论计算结果,与试验数据吻合较好,两者之间的相对误差控制在8.9%以内.该文开展的相关研究工作,可为GFRP-RPC组合结构的实际工程设计提供理论依据.To investigate the calculation method of flexural and shear strength of glass fiber reinforced composite(GFRP)and reactive powder concrete(RPC)composite members,static load test for GFRP-RPC composite members is operated.By comparing the test data of GFRP-RPC composite members,the calculation methods of flexural bearing capacity,minimum reinforcement ratio and maximum reinforcement ratio of composite members are given based on the material constitutive relationship and the stress coordination analysis.The formulas for calculating the flexural bearing capacity of GFRP-RPC composite members in three stages and the shear bearing capacity of GFRP-RPC composite members are given by comparing with the tests and the existing specifications.The minimum and maximum reinforcement ratios of GFRP-RPC composite members are studied.The results show that the theoretical calculation results obtained by using the shear formula presented in this paper are in good agreement with the experimental data,and the relative error between them is controlled within 8.9%.The relevant research work conducted in this paper can provide theoretical basis for practical engineering design of GFRP-RPC composite structure.

关 键 词：玻璃纤维增强复合材料 活性粉末混凝土 抗弯承载能力 抗剪承载能力 配筋率 

分 类 号：TU398[建筑科学—结构工程]