Centrifugal Modeling Test Study On Force And Deformation Characteristics Of Corrugated Steel Pipe Culverts

As the rapid development of China’s highways, the number of the new culverts acrossthe highway is growing in the numerous forms of culverts, Of the culvert engineers in recentyears，the steel corrugated pipe culvert is developing rapidly and is being widely used and it’sincreasingly being attached much attention by the engineering researchers because of itsflexibility，high strength，good ability to adapt to the deformation of foundation, light weight,convenience in transportation, simple process and short periods of construction, lower cost,small disturbance with the foundation, etc. However, the domestic study about its stress anddeformation characteristics in the engineer starts later, and no systematic and mature theorieshas been shaped, in this background, this paper that is based on the steel corrugated pipeculverts which have been used for drainage in the Yu Ci district in the city of Jinzhonganalysed the characteristics of the steel corrugated pipe culverts by the means of indoorexperiments. Considering the superiority of centrifugal model test in reflecting the stressingstate of prototype, the study placed the model in the centrifugal stress field and measured itsstress and deformation in various conditions through the equipments of sensor and combinedthe test results to the analysis of ANSYS. As a result, the changing regularities of the models’stress and deformation in various conditions were retained the results showed that:The steel corrugated pipe culvert’s roof and side faces presented different changingtrends of stress and deformation along the direction of waveform, the wave crest and wavetrough, the medial and lateral, tangential and axial stress and deformation present contrarychanging trends. Besides, steel corrugated pipe’s states of stress are various with the changingof the intersection angle between the highway foundation and the model, the height of soil inthe above and the model’s diameter. In the end, the best constructing plans were designedafter the analysis and the results of the study were applied to the supporting project in order tobring its guiding functions in theory and practice into the application and generalization ofthe technology of steel corrugated pipe culverts.