Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Localised failure mechanism of concrete pedestals under bridge bearing
Concrete pedestals under bridge bearing are sources of high stress zones that exhibit complex damage mechanisms under serviceability limit states. These damages are hard to detect and repair; however, if not treated early, they can lead to twisted or slant bridge girders with potential safety risks to the vehicles. With a view to understand the structural responses of these pedestals, a three-dimensional nonlinear explicit finite element modelling method has been developed and reported in this paper. The nonlinearity of the materials and the contact interaction between the bearing and the pedestal has been accounted for the model. It is shown that the model is capable of predicting the localised damages to the concrete pedestals comparable to those occur in the field. It is also shown that the sharp edges of the concrete pedestal are vulnerable to severe damages due to tensile stress singularities; modifying the shape of the edges appears prudent.
Localised failure mechanism of concrete pedestals under bridge bearing
Concrete pedestals under bridge bearing are sources of high stress zones that exhibit complex damage mechanisms under serviceability limit states. These damages are hard to detect and repair; however, if not treated early, they can lead to twisted or slant bridge girders with potential safety risks to the vehicles. With a view to understand the structural responses of these pedestals, a three-dimensional nonlinear explicit finite element modelling method has been developed and reported in this paper. The nonlinearity of the materials and the contact interaction between the bearing and the pedestal has been accounted for the model. It is shown that the model is capable of predicting the localised damages to the concrete pedestals comparable to those occur in the field. It is also shown that the sharp edges of the concrete pedestal are vulnerable to severe damages due to tensile stress singularities; modifying the shape of the edges appears prudent.
Localised failure mechanism of concrete pedestals under bridge bearing
Yahya, N. A. (Autor:in) / Dhanasekar, M. (Autor:in) / Hamid, H. Abd (Autor:in)
Australian Journal of Civil Engineering ; 18 ; 164-175
02.07.2020
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Bearing capacity of precast pile-pedestals
| Online Contents | 1982
Full-Scale Tests of Bridge Steel Pedestals
| Online Contents | 2008
Full-Scale Tests of Bridge Steel Pedestals
| British Library Online Contents | 2008
Concrete column pedestals for footings
| Engineering Index Backfile | 1947
Design of Anchor Reinforcement in Concrete Pedestals
| ASCE | 2010