Analysis on shear strength of deep beams by improved robust design method.

To provide bases for the tests, design and construction of deep beams, the improved robust design method and the new signal-to-noise ratio were employed. Parameters including the shear span ratio, the concrete strength, the yield strength of horizontal hoop, and the yield strength of vertical hoop were taken into account. The shear strength of deep beams and the factors affecting it were analyzed by the softened truss model and the improved robust design method, respectively. The results show that the strength of concrete has the largest influence on the shear strength of component, the next is the shear span ratio, the yield strength of horizontal reinforce and the yield strength of vertical reinforce have the least influence on it. The analysis result of improved robust design method agrees better with the test result compared with Taguchi method, and it is more accurate and more convenient than Taguchi method. [ABSTRACT FROM AUTHOR]