Historical Stone Arch Bridges’ Damage Causes and Repair Techniques

Abstract

Many historical stone arch bridges have been exposed to the different environmental effects, which could cause structural damage, at different times. Under these natural or human-induced effects such as floods, earthquakes, the bridges were partially or completely damaged. The repair of the historical arch bridges has been repaired against to these damages. The success of the repair work depends on both a detailed archaeological-historical survey and a detailed structural evaluation process carried out together. It is very important to determine the answers to questions such as date and time of construction of the structure, whether there was any interruption in the construction process, the scheme and the order of the damages of the structure, what were the repairs and strengthening done in the structure and whether there was any change in the use of the environment. After these process, the repair method is determined considering many alternatives such as partial or complete disassembly for remodeling of the bridge, regional repair or regional strengthening, full strengthening of the upper structure, removal of excess weight over the bridge, balancing of mass and stiffness distribution, improvement of structural interaction between arches and feet, strengthening of foundation system of the bridge. In this study, the repair methods against the damages occurred on the historical masonry arch bridges exposed to different damages have been tried to be evaluated.

Keywords

• Arch Bridges,Damage causes,Repair methods

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