Simulation Study on Damage Reliability Detection of Building Concrete Light Steel Structure
The light steel structure of building concrete has high strength,good overall rigidity and strong deforma-tion capacity.However,due to the small section of its components,the ultimate bearing capacity decreases after crack-ing damage,which seriously affects the overall quality of the building.Therefore,the damage detection methods of building concrete and light steel structures are studied.The light steel structure entity is constructed and the three-di-mensional finite element model of the light steel structure is automatically generated.The modal parameters of the light steel structure are solved by the modal analysis module.Hilbert vibration decomposition algorithm is used to ob-tain the maximum amplitude component signal of light steel structure damage detection,which is input to the fully connected neural network to detect the damage and output the damage results.The test results show that the maximum difference between the obtained first-order and second-order frequency results and the actual results is 0.75Hz and 1.2Hz respectively,which indicates that the method can accurately obtain the relevant modal parameters of light steel structures and can complete the reliable detection of damage of building concrete light steel structures.
Building concreteLight steel structureDamage detectionModal parametersAmplitude componentFinite element model
NETL
NSTL
万方数据
维普
