基于拉压杆模型的RC节点核心区承载力计算

Bearing capacity calculation of reinforced concrete joints based on a strut-and-tie model

结合2个足尺RC梁柱节点加载试验,利用拉压杆模型对其核心区承载力进行计算。结果表明:拉压杆模型D-区域取1倍截面高度范围时的承载力计算结果偏小,D-区域范围取1/2截面高度时的计算结果与试验值吻合较好。

Based on test results of two full - scale reinforced concrete beam - column joints, carrying capacity of core areas of the joints were calculated and modified based on the strut - and - tie model. The results indicate that the capacity calculated with h - D - regions is smaller than those with h/2 - D - regions, and the calculated results with h/2 - D - regions agree better with the test results.