Analysis Of The Influence Of A Subway Operation Status On The Micro-vibration Of The Surrounding Medical Technical Building Structure

With the rapid economic development,most of the large and medium-sized cities in China have begun to plan and build subways.The environmental vibration and noise pollution will inevitably occur around the subway lines and roads,especially when subways or busy municipal roads pass through hospitals or high-tech trials.Around the room,the impact of vibration on precision instruments and equipment can not be ignored.The object of this study is an upcoming hospital medical technology building.According to the equipment requirements,the hospital protons work very sensitive to the vibration of the surrounding environment.Therefore,it is necessary to strictly limit the impact of the surrounding environment on the proton chamber(to meet the VC-A standard).The environmental vibration sources existing around the hospital mainly include a subway line that will be opened to traffic and municipal roads under planning and construction.Therefore,it is necessary to carry out the necessary numerical simulation analysis and corresponding vibration control measures before the civil engineering design and equipment installation.Meet the vibration control requirements of precision medical equipment.By reviewing the literature on the vibration of building structures caused by the operation of subway trains at home and abroad,the research status and vibration control standards for the influence of vibration due to track irregularities on precision instruments during the operation of subway trains are summarized,and the working ideas and techniques for this article are determined route.According to the finite element method of tunnels and structural engineering,on the basis of the simulation method for determining the vibration load of trains,the boundary size of finite element analysis model,and the constitutive relation of soil and building structural materials,the subway was built using the finite element analysis software MIDAS/GTS.The three-dimensional finite element analysis model of track-track bed-shield tunnel-soil-architectural structure simulates the influence of vibration caused by track irregularity on the architectural structure of medical technology building proton chamber under different driving conditions.The corresponding analysis results were obtained.Using the finite element analysis software of MIDAS/GTS,the plane strain finite element analysis model of road-soil-building structure was established.The vibration and proton chamber structure of hospital building caused by different driving conditions of surrounding municipal road vehicles was established.The influence of vibration was analyzed and corresponding research conclusions were obtained.This article can provide reference for similar engineering problems such as the impact of subway vehicles and automobile vibration in the surrounding operations of precision instrument and equipment construction.