http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
MTP Validation Analysis of Scour Formulae in an Integral Abutment Bridge
P. T. Ghazvinei,H. Hassanpour Darvishi,J. Ariffin,S. H. Musavi Jahromi,N. Aghamohammadi,A. Amini 대한토목학회 2017 KSCE JOURNAL OF CIVIL ENGINEERING Vol.21 No.3
Utilizing the river floodplain for the purpose of urban landscaping and eco-tourism benefit could greatly reduce the river width that would eventually increase flood intensity. This could possibly weaken the bridge foundation that increase the probability of bridge failures due to scour. The main objective of this study is to evaluate scour predictive formulae at a protruding abutment bridge in the compound channel, using Multiple Testing Problem (MTP) in a geometrical model of an Integral Abutment Bridge (IAB). The results of the MTP and graphical comparison yield satisfactory predictive formula. Findings of the current study can help determining maximum scour depth as an essential component of footing design to optimize both construction and maintenance costs.
M. Heydari Nosrat Abadi,H. Hassanpour Darvishi,A.R. Zamani Nouri 사단법인 한국계산역학회 2019 Computers and Concrete, An International Journal Vol.24 No.5
In this paper, dynamic stress, strain and deflection analysis of concrete pipes conveying nanoparticles-water under the seismic load are studied. The pipe is buried in the soil which is modeled by spring and damper elements. The Navier-Stokes equation is used for obtaining the force induced by the fluid and the mixture rule is utilized for considering the effect of nanoparticles. Based on refined two variables shear deformation theory of shells, the pipe is simulated and the equations of motion are derived based on energy method. The Galerkin and Newmark methods are utilized for calculating the dynamic stress, strain and deflection of the concrete pipe. The influences of internal fluid, nanoparticles volume percent, soil medium and damping of it as well as length to diameter ratio of the pipe are shown on the dynamic stress, strain and displacement of the pipe. The results show that with enhancing the nanoparticles volume percent, the dynamic stress, strain and deflection decrease.