Abstract
I
COMPUTATION ANALYSIS OF THE NON-FRAGMENTS
TRACK-GROUND-FOUNDATION-STRUCTURE SYSTEM
VIBRATION ON CAUSING THE-HIGH-SPEED TRAIN
ABSTRACT
The reform and open policy more than 30 for years, our country high speed track
transportation development is rapid, from this causes the vibration response to live the influence
which to the people creates with the work, has enabled it to become a big hot topic. The very
high-speed train movement causes the ambient vibration question, has become a new topic which
the construction expert and the researcher pays attention, but is generally take universal has the
fragments track to carry on the computation analysis as the model. Recent year, the
non-fragments track by its special superiority rapidly expand, becomes when the construction
high-speed railroad the most commonly used track structure form. Its maintenance work load
small, 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 terrain
route selection, the very high-speed train will move when will not have the danger which the
ballast will splash. Therefore this article as calculates the platform take ansys, has established the
non-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 the
very high-speed train causes the ambient vibration question and to the periphery structure's
influence, to further study the structure vibration question to provide certain reference. This
article main research content includes:
1. The introduction has established the non-fragments track - ground - foundation - building
three dimensional power computation model using finite element ansys.
2. Through the establishment of a frantic jumble no track-foundation-the foundation-a three
dimensional numerical structure analysis model simulation different speed, and different soil
characteristics, different different axle distance under various external conditions of the building
characteristics 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 movement
causes multi-layer portal frame construction vibration response characteristic and research
foundation burying depth to multi-layer portal frame construction vibration response influence;
Has studied under the different vehicle speed the multi-layer portal frame construction vibration
characteristic research, mainly analyzes each floor floor central node the vibration situation and
the frequency spectrum characteristic. This article is the research high-speed train moves under
the non-fragments track condition, causes to the periphery structure vibration question; Mainly
from change structure own external factor, structure own characteristic and the structure
