FRP筋混凝土双向板冲切承载力计算模型研究  

Study on Punching Shear Capacity Model of FRP Reinforced Two-way Concrete Slab

作　　者：张亚坤[1] 侯黎黎[1] 张晓磊[1] 李作标 ZHANG Ya-kun;HOU Li-li;ZHANG Xiao-lei;LI Zuo-biao(School of Hydraulic Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China)

机构地区：[1]黄河水利职业技术学院水利工程学院,河南开封475004

出　　处：《水电能源科学》2023年第1期124-128,共5页Water Resources and Power

基　　金：2020年开封市科技发展计划(科技攻关2001021);2020年度黄河水利职业技术学院青年骨干教师培养计划(2020HYGG01);河南省高等学校重点科研项目计划(22B570001,22B560007);河南省高等职业学校青年骨干教师培养计划(2019GZGG071);开封市黄河流域生态保护和高质量发展创新专项计划(2019018)。

摘　　要：为了得到较准确的FRP筋混凝土双向板冲切承载力的计算模型,以FRP筋混凝土双向板为研究对象,运用文献综述、数据统计、模型分析和回归计算等研究方法,借助常用的FRP筋混凝土双向板冲切承载力计算模型,对98块FRP筋混凝土双向板冲切试验数据进行计算和评估,并运用双向板临界冲切截面系数反演的方法,提出了一种新的FRP筋混凝土双向板冲切承载力的计算模型,该模型对FRP筋混凝土结构在集中荷载作用下冲切承载力的预测具有较高的精度,计算结果与试验数据库吻合较好。该研究对FRP筋混凝土双向板冲切承载力的设计具有指导意义,并对今后进一步提高FRP筋混凝土双向板冲切承载力计算模型的精度提供了重要参考。In order to obtain a more accurate calculation model of punching shear capacity of FRP reinforced two-way concrete slab, taking the FRP reinforced two-way concrete slab as the research object, using the research methods of literature review, data statistics, model analysis and regression calculation, and with the help of the commonly used calculation model of punching shear capacity of FRP reinforced two-way concrete slab, based on the collected punching test data of 98 FRP reinforced two-way concrete slabs, the inversion method of critical punching section coefficient of two-way slabs was used to establish a new calculation model of punching bearing capacity of FRP reinforced two-way concrete slabs. The model has high accuracy in predicting the punching bearing capacity of FRP reinforced concrete structures under concentrated load. The predicted results are in good agreement with the experimental database. The model has guiding significance for the design of punching shear capacity of FRP reinforced two-way concrete slab, which provides an important reference for further improving the accuracy of punching shear capacity calculation model of FRP reinforced two-way concrete slab in the future.

关 键 词：FRP筋 混凝土双向板 冲切承载力 计算模型 临界冲切截面计算系数 

分 类 号：TV332.2[水利工程—水工结构工程] TU528.1[建筑科学—建筑技术科学]