吕艳梅¹，易伟建²
(1 广东省建筑设计研究院，广州510010; 2 湖南大学，长沙410082)

[摘要] 收集了国内外文献中的345根集中荷载作用下有腹筋梁的剪切破坏试验数据，将所有试验梁的试验结果与我国规范GB50010-2002、美国规范ACB18-05、欧洲规范EC2-02以及Zsutty公式的预测结果进行比较，分析各计算方法的优缺点，以及对各抗剪承载力影响因素的考虑是否得当。结果表明：Zsutty方法的预测结果最为精确，其次是我国规范GB50010-2002方法，美国规范ACI 318-05和欧洲规范EC2-02的预测结果比较保守；四种预测方法的对于纵筋配筋率小于I%的梁、有效高度较大的深梁，预测结果安全度偏低。
[关键词] 高强混凝土；有腹筋梁：抗剪承载力

Research on shear strength of high strength concrete beams:  II Beam with web reinforcement
Lu Yanmei¹,  Yi Weijian²
(1 The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China; 2 Hunan University, Changsha 410082, China)

Abstract: Experimental data of 345 beams without web reinforcement in shear failure was collected  The testing results are compared with failure shear strength calculated by GB50010-2002, ACB18-05, EC2-02, and Zsutty equation, not only the advantages and disadvantages of these methods but also the feasibility of these considerations on influential variables of shear strength are analyzed. The analysis results show that Zsutty equation has the best prediction for shear strength of concrete beams, in the next place is GB code equation, and ACI and EC code equation underestimates the shear strength ofbeams. Besides, four methods are unsafe for beams with longitudinal reinforcement ratios less than 1% and deeper beams with larger efFective depth.
Keywords: high strength concrete; beam with web reinforcement; shear strength