Abstract Careva Cuprija (Emperor’s Bridge), located in the heart of the Old City in Sarajevo, was built in 1897. It was built as the first single-arch reinforced concrete bridge in Sarajevo with a span of 25.36 m. At that time, it was the largest structure of this type in the Austro-Hungarian monarchy. During its long life of 122 years, some rehabilitation work took place; however, the main design for its rehabilitation was done just in 2015. As the bridge is on the list of the national monuments of Bosnia and Herzegovina, ICOMOS Recommendations for the Analysis, Conservation and Structural Restoration of Architectural Heritage were followed. The current condition assessment of the bridge was used to identify the remaining service life of the bridge, the required type and level of treatments, and suitable time for applying repair and retrofitting methods. Visual inspection, nondestructive, and minor destructive tests were done with the goal to determine the mechanical characteristics of the built-in materials and define the state of the structure. The article discusses the used methods and obtained results, which were the basis for numerical model calculation and the creation of the rehabilitation design.

Abstract Bosnia and Herzegovina is located in the center of the Western Balkans. Until 2018 Bosnia and Herzegovina used the hazard maps based on the macroseismic intensity. The first generation of probabilistic seismic hazard maps of Bosnia and Herzegovina is compiled and presented. Two seismotectonic models were created, the areal and linear (fault) together with the earthquake catalogue filtered out from foreshock and aftershock events. Hazard maps were constructed in terms of the peak ground acceleration, and presented in two maps, with an exceedance on average once in 95 or 475 years. The hazard map used for the design of earthquake-resistant buildings (return period of 475 years with a probability of exceedance of 10% in 50 years) is created for the ground type A with the velocity of the seismic wave propagations of vs,30 = 800 m/s. These maps have been accepted as a part of the National Annex in BAS EN 1998–1:2018.

Abstract The formation of the freshwater lakes and travertine limestone was caused by the tectonic depression, which occurred in the Dinarides during the Miocene. This stone has been exploited and used since far back on the territory of Bosnia and Herzegovina as a building stone and for different architectural purposes. Most of the investigations were concentrated on the “tenelija” stone due to its massive use and construction of the famous Stari Most (Old Bridge) in Mostar. Not much investigation was devoted to “miljevina” (mudstone) which belongs to the same petrographic type. This is a soft carbonate rock that is highly porous, has small density, relatively low strengths, poor wear resistance, and low resistance to frost. In this paper, the influence of layers (planes of anisotropy - foliation) of the mudstone was investigated. Within an experimental campaign, numerous sets of tests were performed on different samples. Tests include uniaxial compressive strength (UCS) on cube and cylinder specimens, flexural strength under concentrated load and constant moment, tensile strength based on Brazilian tests, determination of Young’s modulus, modulus of deformations, and Poisson ratio. Prediction of UCS and Young’s modulus, as elastic mechanical characteristics, represent the main goal in engineering projects. Additionally, the influence of sample conditions and planes of anisotropy was investigated. Results have been compared and correlations are established. As a result, a new relation between uniaxial compressive strength obtained on cube and cylinder samples for a stone of low compressive strength is proposed.