纵筋对高强混凝土压弯构件抗剪承载力影响的有限元分析与试验研究

Study of effects of longitudinal to shear bearing capacity of high-strength concrete beam-column via finite-element analysis and experiments

编制有限元程序(HSCN)模拟高强混凝土压弯构件的抗剪试验,为了验证程序的有效性,进行了3根C60混凝土压弯构件的抗剪试验,实测结果与模拟结果吻合较好。通过对试验数据及模拟结果的统计分析,探讨了不同剪跨比情况下,纵筋配筋率对高强混凝土柱抗剪承载力影响的规律。

We develop high-strength concrete nonlinear finite element program （HSCN） to simulate the shear-failure processes of high- strength concrete beam-columns being applied the lateral load, and accomplish the experiments of three C60 high-strength concrete beam-columns for verifying the validity of the HSCN. The calculation results have good accordance with the experiment results. After statistically analyzing the experimented data and simulated data, the rules how ratio of longitudinal affects the shear bearing capacity of high-strength concrete columns, in accordance to shear span ration, are concluded.