摘要
通过２０根预应力钢纤维混凝土梁的试验研究，分析了钢纤维长径比和体积率、箍筋间距、截面有效预压力对其斜裂缝宽度的影响；建立了预应力钢纤维混凝土梁斜裂缝宽度计算的理论模式．结合试验资料的统计分析，提出了预应力钢纤维混凝土梁斜裂缝宽度的实用计算公式．
? Based on the experimental study of 20 steel fiber reinforced prestressed concrete beams, the effects of the volume fraction and aspect ratio of steel fiber, the stirrups distance and the sectional effective precompressed force on the shear crack width are analyzed. The theoretical model and the practical formulas for calculating the shear crack width of steel fiber reinforced prestressed concrete beams are proposed.
出处
《大连理工大学学报》
CAS
CSCD
北大核心
1998年第6期705-710,共6页
Journal of Dalian University of Technology
基金
国家自然科学基金
关键词
预应力混凝土
钢纤维
梁
斜截面
裂缝宽度
prestressed concrete
steel fibres
beams/diagonal section
shear crack width
