混杂钢纤维UHPC拉伸韧性及其评价方法OA北大核心CSTPCD
Tensile toughness of hybrid steel fiber reinforced ultra-high performance concrete (UHPC) and its evaluation method
为研究混杂钢纤维对超高性能混凝土(ultra-high performance concrete,UHPC)拉伸性能的增强、增韧作用,考虑钢纤维的类型、体积掺量和混杂方式等因素,设计并制作8组UHPC狗骨状受拉试件.通过单轴拉伸试验,分析混杂钢纤维UHPC的受拉损伤过程、应力-应变关系曲线、拉伸特征参数和断裂能,提出UHPC拉伸初裂点的量化确定方法,并建立其拉伸韧性的优化评价指标.结果表明:混杂钢纤维UHPC呈现多缝开裂和斜向断裂的韧性破坏特征,…查看全部>>
To investigate the strengthening and toughening effects of hybrid steel fibers on the tensile properties of ultra-high performance concrete(UHPC),eight groups of UHPC dog-bone tensile specimens were designed and manufactured considering the type,volume content and hybrid mode of steel fibers.The tensile damage process,stress-strain curves,tensile characteristic parameters and fracture energy of hybrid steel fiber reinforced UHPC were analyzed by uniaxial ten…查看全部>>
梁林;王秋维;史庆轩
西安建筑科技大学土木工程学院,陕西西安 710055西安建筑科技大学土木工程学院,陕西西安 710055西安建筑科技大学土木工程学院,陕西西安 710055
土木建筑
超高性能混凝土(UHPC)混杂钢纤维单轴拉伸试验轴拉性能拉伸韧性评价
ultra-high performance concrete(UHPC)hybrid steel fiberuniaxial tensile testaxial tensile propertyevaluation of tensile toughness
《建筑结构学报》 2024 (9)
41-53,13
国家自然科学基金项目(52178505,51878543),陕西省教育厅协同创新中心项目(23JY043).
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