Study on the Dynamic Response and Blast-resistant Reinforcement of Reinforced Concrete Columns Under Blast Load
Some industrial factory buildings have special demands for blast resistance of the components,thereby making blast resistance design a must for these components.Due to the installation of additional chemical equipment in a petrochemical enterprise in Zibo,the local concrete columns in the factory have to bear blast impact loads,causing a necessity for these columns within the range to be reinforced against blasts.This paper analyzed the failure mode and dynamic response of reinforced concrete columns with different carbon fiber cloth reinforcement methods(closed winding paste,side paste)using finite element software,and found that when the component is subjected to initial impacts,the greater stress is concentrated at both ends,and the component roughly displays shear deformation;when the concrete column is reinforced with full-section hoop paste,the carbon fiber cloth functions the same as the longitudinal rebar within the column and can provide surrounding hoop effects,similar to the shear hoop within the column,so it can significantly enhance the ductility of the component compared with the opposite paste reinforcement method.The conclusion provides relevant data to support the blast resistance reinforcement design for the same type of concrete columns with some value for reference.
blasting loadreinforced concrete columncarbon fiber reinforcementfinite element
NETL
NSTL
万方数据
维普
