HRB500高强钢筋与活性粉末混凝土黏结滑移本构关系研究  

HRB500 high- strength reinforced and reactive power concrete bond-slip constitutive relations research

作　　者：邓宗才[1] 程舒锴 

机构地区：[1]北京工业大学城市与工程防灾减灾省部共建教育部重点实验室,北京100124

出　　处：《混凝土》2015年第1期25-31,共7页Concrete

基　　金：国家自然科学基金项目(51378032);北京市自然科学基金(8142005);教育部博士点基金(20131103110017)

摘　　要：为了研究高强钢筋与活性粉末混凝土(简称RPC)的黏结性能,以钢筋直径与锚固长度为变量通过中心拉拔试验分别测定了HRB500型高强钢筋与三种不同配合比的活性粉末混凝土的黏结应力和滑移值。通过理论分析与数据拟合,探讨了影响黏结性能的主要因素,在试验与计算分析的基础上建立了黏结-滑移本构关系。拟合出的黏结-滑移本构曲线基本反映出试验曲线的变化规律,并通过比较初步分析了三种不同纤维掺量制作的RPC试块与高强钢筋黏结滑移曲线的变化规律,可为活性粉末混凝土结构有限元分析提供参考。In order to study high - strength reinforced and reactive powder concrete （ referred to as RPC ） bond - slip performance, it measured different reinforced anchorage length and diameter of HRB500 high strength reinforced and reactive powder concrete of three different type in the pull- out test with the bond stress and slip values. Through theoretical analysis and data fitting, we get the factors that determines bond stress and calculated their formulas, so that we could research bond - slip constitutive relations. It fit the bond - slip constitutive curve that reflects the variation of the basic test curve, and a preliminary analysis by comparing the variation of three different RPC test block with different fiber volume ratio.This provides a foundation for finite element analysis in reactive powder concrete structures.

关 键 词：HRB500型高强钢筋 活性粉末混凝土 黏结-滑移本构曲线 

分 类 号：TU528.01[建筑科学—建筑技术科学]