Reinforced concrete structural members regardless of what Reinforcements are allowed cracks cold rolled steel wholesale, but there is a limit to the width of the crack, so the specification design of reinforced concrete structural members should conduct width of crack. Cold-rolled ribbed steel technical specification for concrete structures crack width also gives the formula. To reduce the designers trouble regulations also clearly states: "Under normal indoor environment of reinforced concrete flexural members, when the concrete strength grade of not less than C20, bar diameter less then 10mm and thickness of concrete cover when not more than 25mm , from time to maximum width of crack. " Shear horizontal and vertical distribution of tendons. Because cold-rolled ribbed steel bars elongation greater twisted steel cold rolling production line, so for cold-rolled steel shear walls, to meet seismic requirements. This application practice for decades when abroad can prove, in the reinforced concrete structure welded Technical specification JGJ / T114─97, it has been made clear stipulations. Beams in the stirrups, stirrup when the force is calculated as stirrups, according to the design value of the tensile strength 310N / mm [~ 2] values. Buying cold-rolled steel, cold rolled steel, cold rolled by Ding Ding Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) strong, credible, and other industries in other Anyang accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dingding cold rolling and you hand into the brilliant, for a better future!