Study on High Level Corrective Reinforcement of Commercial Concrete Mixing Building with Steel Frame Structure
Correction technology is one of the main engineering techniques for correcting and strengthening ex-isting building structures.The paper is based on the high-level lifting correction and reinforcementof steel structure in a commercial mixing station in Lanzhou,the C-axis of commercial concrete mixing building of the steel frame structure has a larger settlement deformation than the E-axis,the C-axis is inclined to the E-axis,and the inclined deformation is opposite to the settlement deformation.The stress release method is proposed to correct the deviation of the high lifting of the building,and the maximum value of jacking is 365 mm,this method can not only eliminate the engineering accidents caused by stress concentration,but also correct the building within the deformation range so that it can be used normally,and the construction period is short,economic,safe and reliable.After half a year of deformation observation data analysis,no obvious continued deformation was found,the reinforcement effect was good.The results can provide an expirical basis for the similar existing steel frame structure buildings to be rein-forced by high level jacking and deformation correction.
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