Computation Analysis Of The Non-Fragments Track-Ground-Foundation-Structure System Vibration On Causing The-High-Speed Train

The reform and open policy more than30for years, our country high speed tracktransportation development is rapid, from this causes the vibration response to live the influencewhich to the people creates with the work, has enabled it to become a big hot topic. The veryhigh-speed train movement causes the ambient vibration question, has become a new topic whichthe construction expert and the researcher pays attention, but is generally take universal has thefragments track to carry on the computation analysis as the model. Recent year, thenon-fragments track by its special superiority rapidly expand, becomes when the constructionhigh-speed railroad the most commonly used track structure form. Its maintenance work loadsmall, services the facility to reduce, the expense to be low, the whole stable line is quite good,the durability to be good, the self-weight of structure will be lightly advantageous in the terrainroute selection, the very high-speed train will move when will not have the danger which theballast will splash. Therefore this article as calculates the platform take ansys, has established thenon-fragments track-foundation-structure system’s three dimensional power interaction model,has analyzed, in the track structure form designated under the non-fragments track condition thevery high-speed train causes the ambient vibration question and to the periphery structure’sinfluence, to further study the structure vibration question to provide certain reference. Thisarticle main research content includes:1. The introduction has established the non-fragments track-ground-foundation-buildingthree dimensional power computation model using finite element ansys.2. Through the establishment of a frantic jumble no track-foundation-the foundation-a threedimensional numerical structure analysis model simulation different speed, and different soilcharacteristics, different different axle distance under various external conditions of the buildingcharacteristics of vibration response; Change the structure characteristics of the building itself,analysis of the vibration response of the building characteristics.3. Under the board style non-fragments track condition the very high-speed train movementcauses multi-layer portal frame construction vibration response characteristic and researchfoundation burying depth to multi-layer portal frame construction vibration response influence;Has studied under the different vehicle speed the multi-layer portal frame construction vibrationcharacteristic research, mainly analyzes each floor floor central node the vibration situation andthe frequency spectrum characteristic. This article is the research high-speed train moves underthe non-fragments track condition, causes to the periphery structure vibration question; Mainlyfrom change structure own external factor, structure own characteristic and the structure foundation burying depth aspect analyzes the structure the vibration response characteristic,vibrated for the non-fragments track transportation’s around frame building has provided certainproject reference value and the significance.