In this master thesis, we were focusing on seismic response of brick masonry constructions. Starting point for the research were experimental analysis of unreinforced and reinforced brick piers and spandrels. We studied the effect of strengthening brick masonry with mortar reinforced with GFRP mesh. Mortar layer is anchored into the wall with special L-shaped anchors, made of GFRP and with steel connecting anchors (diatones), which anchors one-sided plaster and helps at binding the layers. This thesis describes the response on seismic load before and after reinforcement. Computer models for calculation of resistance of unreinforced and reinforced brick piers and spandrels are also described. Calculation of resistance of all test subjects are shown, results are compared with experimental analysis results. Because of poor matching of computer model results and experimental results of spandrels we developed a new model, which based on engineering assumptions better approximates resistances. In the last part of this master thesis we used the findings to model unreinforced and reinforced building to evaluate the impact of reinforcing from only one side of the wall. All steps in modelling process are shown, including determination of resistances and non-linear characteristics of all elements (walls). The seismic response of the building was determined with non-linear seismic analysis.
|
