Analysis of reinforced masonry structures in LIRA-FEM program supports the following building codes: SP 15.13330.2012, SNIP II-22-81 and DBN B.2.6-162.
The model is generated in graphic environment VISOR-SAPR or in preprocessors SAPFIR-Structures. The user assigns horizontal levels in structural model (at the elevation of min section of pier, at elevation where floor slabs are supported, etc.), the strength of masonry is checked at these levels. When forces are computed by the solver, combined 3D behaviour of load-bearing brick and reinforced concrete elements of the building is considered. Required number of mesh reinforcement as well as rebars of vertical reinforcement is determined. It is possible to analyse several variants for different division of wall segments in different design options defined by the user.
Materials are prepared and defined for design model in a similar way to the input data for analysis of steel and RC structures. Materials for analysis of masonry structures contain three components: properties of masonry, properties of reinforcement, and parameters of exterior strengthening of piers.
If vertical rebars or combination from mesh reinforcement and rebars were assigned in analysis, then output data will contain mosaic plots for required number of rebars and their diameters as well as appropriate percentage of reinforcement.
For every level it is possible to obtain the sketch of working drawing with number of masonry courses in which it is necessary to place reinforcement meshes.
In the same project it is possible to define different types of masonry structures, different types of stone, slag stone, shell limestone, tuff, etc.