公路桥梁移动模架施工新技术及温度对施工过程的影响OA

In the field of highway and bridge engineering,stability improvement is the core goal of ensuring structural safety and durability.In order to deeply understand the impact of environmental factors on the dynamic performance of bridges,this paper introduced the Hilbert transform method and constructed a"temperature-stiffness"correlation model from the perspective of vibration frequency and damping model.The model uses two estimation processes.First,Hilbert transform is used to extract the instantaneous frequency and phase information of the bridge vibration signal,and then the influence of temperature changes on the bridge stiffness is analyzed.Experimental results show that the constructed method can accurately capture the correlation between temperature fluctuations in the construction environment and bridge vibration frequency amplitude and phase changes.By monitoring temperature data in real time,bridge stiffness can be predicted and adjusted,and potential safety hazards caused by temperature stress can be effectively prevented.This innovative method not only improves the accuracy of quality control during bridge construction,but also provides a scientific basis for structural health monitoring in long-term operation,ensuring that highway bridges can maintain excellent stability and safety under various environmental conditions.