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This study aims at postulating a simple methodology for predicting the failure modes ofmonotonically loaded reinforced concrete beam-column joints. All the factors that affect the failure modesof joints are discussed in detail using an experimental database of monotonically loaded exterior beam-column joints. The relative contributions of the strut and truss mechanisms to joint shear strength aredetermined based on the test results. A simple design equation for the beam longitudinal reinforcementratio for joints with low, medium and high amount of stirups is developed. The factors influencing thefailure modes of monotonically loaded exterior beam-column joints are investigated in detail. Designcharts that predict the failure modes of exterior beam-column connections both with and without stirrupsare developed. Experimental data are compared with the design charts. The results show that the simplemethodology gives very accurate predictions of the failure modes.