Comprehensive Transportation Hub Environment Vibration Analysis

The Era of the development of high-speed railway, it means that people on the travel time requirements increasing and demand for services to further enhance the travel. The traditional railway hub station house tend to be independent of the other modes of transport. In order to synchronize with the times, modern large-scale integrated transport hub combined with a variety of transport. To achieve a variety of transportation aviation, high-speed rail, general iron, rail, bus and magnetic levitation trains of "zero change or short-distance transfer". Station house structure contains complex architecture viaducts, tunnels and largespan space, making the "one bridge station," "multi-dimensional" station house architecture has been widely adopted. Because of its complex structure form, it also raised a number of environmental vibration problems often cause direct harm to people. Therefore, for integrated transport hub station house environmental vibration analysis of the structural design and vibration control environment is of great significance.In this paper, taking Nanchang West Railway Station integrated transport hub as the practical project background. Making analysis of high-speed trains, subway trains and background vibrations induced environmental vibration problems. And analysis, evaluation and summary. The main work is carried out as followings:1. Read the relevant literature, summarize environmental vibration evaluation criteria and evaluation standards of comfort at home and abroad.2. Nanchang West Railway Station waiting room floor slab vibration test were to test the background vibration floor, high-speed trains and the general environmental vibration induced by train, and in accordance with relevant standards to evaluate environmental vibration analysis. The results show that the vibration Nanchang West Railway Station waiting room waiting room floor is lower than the evaluation criteria, and there is some surplus space.3. On track irregularity simulation analysis. Establishment of ballasted track double beam model, Fourier transform to solve differential equations vibration. Calculation subway train(B Model) and high-speed trains(CRH3) wheel-rail forces at different speeds.4. According to Nam Cheong West station information parameters established Nanchang West Railway Station integrated transport hub ANSYS Finite Element Model. Load the wheel-rail force calculated by high-speed trains and subway trains to model, analyze Nanchang West Railway Station integrated transport hub vibration environment.5. High-speed train at different speeds and at different points from the centerline of the track environment induced vibration analysis. And iron train at different speeds induced environmental vibration analysis.6. The measured and numerical analysis were compared to verify the accuracy of the model. And integrated transport hub ambient vibration analysis to make summary.