Dynamic Response And Damage Analysis On Chemical Equipment Supporting Framework Structure Under The Explosion

Petrochemical plants due to their important economic status and location are often the main objectives of the terrorist bombing attacks. In addition, the petrochemical device with the high temperature and pressure characteristics inside tends to explode. Explosion disasters, not only cause property damage and casualties, but also lead to other reactions. Therefore, the chemical equipment support structure should have a certain ability to withstand the impact of blast loading to ensure support structure of chemical equipment safe and reliable.To find the reaction to the framework structure under the explosion impact, begins with an explosion theory, selects blast load cases and applies to the already well-established model of reinforced concrete structures in this paper. SAP2000 finite element software is used in the dynamic response analysis of the structure and obtains law of the dynamic response to the blast load on the structure, provides a reference engineering design and construction maintenance.Study dominates that the structure is easy to reach a plastic state, even lead to failure of structural components. Edge column more likely occurs the destruction than middle column, ground point of bottom column take places the plastic changes first. The plastic hinge from the bottom up development. Structure to take a large cross-section, high-strength concrete as a structural component and to increase the number of columns to improve horizontal rigidity, can be better to improve the structure of the anti-knock ability.