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通过14根矩形截面框架柱在斜向水平荷载作用下的受剪试验,研究其斜向受剪承载力的计算方法。基于单向桁架-拱模型,建立了一个双向桁架-拱模型。为了验证该计算模型的可行性,利用此方法对本试验的14根框架柱及其他文献中的16根框架柱的斜向受剪承载力进行了计算。试验结果和计算值的比值表明,基于双向桁架-拱模型推导的计算公式可以安全估算矩形截面框架柱斜向受剪承载力,满足工程需要。
Shear test of 14 rectangular cross-section frame columns under oblique horizontal load is carried out to study the method of calculating the oblique shear bearing capacity. Based on the unidirectional truss-arch model, a bidirectional truss-arch model was established. In order to verify the feasibility of the calculation model, the diagonal shear strength of the 14 frame columns in this experiment and 16 frame columns in other literatures were calculated by this method. The ratio of the test results to the calculated values shows that the diagonal shear strength of the rectangular column beam can be safely estimated based on the formula derived from the bidirectional truss-arch model to meet the engineering requirements.