摘要
为了比较《混凝土结构设计规范》(GB 50010-2010)和《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG D62-2004)中受剪承载力计算公式的异同,分析了国内外528根跨高比不小于5的无腹筋梁剪切试验数据,得出当梁的有效高度大于600mm或纵筋率小于1.5%时,《混凝土结构设计规范》(GB 50010-2010)预测结果偏于不安全。《混凝土结构设计规范》(GB 50010-2010)预测结果离散型大,而《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG D62-2004)预测结果相对保守。
To compare the difference among design formulas for shear bearing capacity in Code for Design of Concrete Structure （GB 50010 -201 O） and Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Cul- verts （JTG D62 -2004）, shearing test data are analyzed for 528 pieces of beams without web reinforcement whose span - height ratio is not less than 5 at home and abroad. It is found that When the effective height of beam is higher than 600mm or percentage of longitudinal reinforcement is less than 1.5% , the calculation result of Code for Design of Concrete Structure （GB 50010 -2010） is probably unsafe. 1~he result of GB 50010 -2010 is obviously divergent and the result of JTG D62 - 2004 is relatively conservative.
出处
《建筑技术开发》
2014年第4期16-18,共3页
Building Technology Development
关键词
钢筋混凝土
无腹筋梁
受剪承载力
reinforced concrete
beam without web reinforcement
shear bearing capacity
