Stirrups applications: frame structure under seismic action effects, beams, columns have a greater Buying bending rebar, but the shear deformation is much smaller than the bending deformation, so the beams, columns reinforced when, for longitudinal reinforcement plastic plastic stirrups requirements should require more than important. That requires longitudinal reinforcement elongation should be larger than the stirrups. Since the provisions in the specification Ⅲ grade steel suitable for use as longitudinal reinforcement. Cold-rolled ribbed steel rebar used as stirrups, when able to meet its plastic beams, shear deformation of the requirements of the column. Reinforced concrete structural members regardless of what Reinforcements are allowed cracks rebar company, 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. " Buying rebar, rebar, Shandong, Henan Province, Ding Ding Ding Ding by cold rolling Industries Limited. 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!