Buying steel, cold-Ding Ding (certified), Jiangsu, Henan Province, Ding Ding by rebar Industries Limited. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is a professional enterprise, "cold-rolled ribbed steel CRB550", the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu. Specified in the specification beams, columns ends stirrups to be encrypted, its purpose is to ensure that under seismic loads and vertical frame beam plastic hinge zone and column ends have sufficient shear capacity, while also increasing the stirrups of concrete binding effect, to ensure the realization of rebar beam hinge mechanism to ensure ductility column ends, to prevent buckling of longitudinal reinforcement. From watching these purposes, is to ask the stirrups sufficient number and density, in order to improve the shear capacity of beams bend ductility. Manufacture of reinforced steel manufacturer, to steel processing table with spot rebar design review, inspection cutting table for errors and omissions. Reinforced steel construction if desired substitution, we must fully understand the design intent and the substitution of the material properties of rebar Buy, strict compliance with the existing reinforced concrete design specifications of the various provisions and shall not be such as high-strength steel substitution area of ??low intensity . Where important parts of steel substitution shall obtain Party, agreed to design units, and only when there is a written notice substitution.