摘要
为了获得高强钢筋活性粉末混凝土简支梁受弯构件挠度的计算方法,进行了4根不同配筋率的高强钢筋活性粉末混凝土梁的结构试验。研究结果表明,试验梁的挠度实测值比普通钢筋混凝土梁计算公式计算值低16%左右。基于试验数据,在普通钢筋混凝土梁挠度计算式中引入挠度折减系数并取为0.84,对公式予以修正,从而建立了高强钢筋RPC梁挠度的计算公式。公式计算值与试验值吻合良好。
To investigate the deflection calculation method of RPC（Reactive Powder Concrete） girders reinforced by high strength rebars,4 simply supported girders with different reinforcement ratio were tested.The results show that the measured deflection is smaller than the calculated value by 16%based on the calculation for ordinary reinforced concrete girder.Based on the test,a deflection reduction factor 0.84 was introduced to the calculation equation for ordinary reinforced concrete girders and this new equation was suggested for the deflection calculation of RPC girders.In this way,the calculated deflection will be close to the test result.
出处
《铁道建筑》
北大核心
2016年第5期91-94,共4页
Railway Engineering
基金
国家自然科学基金项目(51368013)
广西重点实验室项目(2015-A-02)
关键词
高强钢筋
活性粉末混凝土
RPC梁
挠度计算
High strength rebar
Reactive powder concrete
RPC girder
Deflection calculation
