李静媛 Effect of transverse pre-stretching before deep drawing on the surface ridging resistance of 17%Cr ultra-purified ferritic stainless steel XIONG Qiang ,
2020年3月19日 · Abstract: Based on the development and distribution of cracks, we explored the shear performance of concrete beams without web reinforcement under different shear span ratios and longitudinal reinforcement ratios. Nine groups of concrete beams without web reinforcement with shear-span ratios of 1.5, 2, 2.5 and longitudinal reinforcement ratios of …