Abstract
Experimental and finite element study of one span concrete bridge bent designed by the requirements of the 1970s, under gravity and lateral load
Highlights
Because many bridges are located in seismic areas, they may suffer irreparable damage or even collapse when exposed to strong earthquakes [1]
The finite element model correctly predicted the weakness of the model, a reinforced specimen was investigated by increasing the prestressing force in the concrete beam and the thickness of the fiber-reinforced plastic cover (FRP) sheets used at the base of the bridge by the finite element method
Due to the double curvature of the cap-beam, the crack at the end connecting to the concrete column is close to where the load is applied to the cap-beam at the connection to the column
Summary
Because many bridges are located in seismic areas, they may suffer irreparable damage or even collapse when exposed to strong earthquakes [1]. Bridge damage is usually caused by superstructure movement, joint failure, bent damage of the column due to shear or flexure, and abutment failure [5-2]. Bridges located in seismic areas need seismic reinforcement to be prevented from damage in severe earthquakes and to maintain their services after the earthquake. The study of seismic reinforcement of bridges is of interest to many researchers and information about samples and their characteristics is available from experiments in research centres [9]. The first and most serious study on this subject was the experimental tests of Priestley theory [12-13] which examined the effect of a steel cover installed on the whole column in increasing the shear strength of concrete columns of the bridge frame.
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