A Chemical Plant Refined Naphthalene Frame Structure Identification And Reinforcement Analysis

A chemical plant refined naphthalene workshop main role is to store chemicals,The plant has been used for over 20 years since it constructed, Due to chemical corrosion, erosion of the external environment, the physical effects, and other external factors, the plant has been hardly damaged which might lead the bearing capacity of the member and structure couldn’t meet current code requirements. In this case, this article give some structural framework corresponding treatments. First, the structural beams were detected and identified, Specific content includes: column and Beam defect detecting test, the use of core drilling method and rebound method for testing the strength of structural concrete, Then use structural calculation software run the corresponding static analysis based on the results of Appraisal and strengthening, Obtain the period of the structure, the axial compression ratio of pillars, the interlayer displacement angle under seismic action and so on, And draw a diagram showing the structure of reinforcement, then contrast the reinforcement of the original design drawings figure with the reinforcement figure, Check the reinforcement steel ratio weather meets the requirements. Then considering the detection and identification of the conclusions structure and static analysis of the conclusions to give the structure of reinforcement measures, then calculate and analyze the reinforced structure, By results of the analysis to verify the safety and feasibility of strengthening program. Finally, taking into account the irregularity of the structure, Also requires the use of SAP2000 for structure analysis Pushover, through the earthquake Pushover analysis,obtaining the displacement of the Performance points under different kinds of earthquake, and the development of the plastic hinge structure,This approach verifying the safety of structures when meet strong earthquakes as well as Identify the weaknesses part in the structure. This article will provide reference for similar structures reinforcement projects.