Online course "Calculation in the LIRA-FEM PC according to the European standards SP RK EN" for advanced users

Requirements for students: basic knowledge of the LIRA-FEM PC.

Course program

COURSE PROGRAM

Topic 1. General principles and methods for creating spatial calculation schemes in the LIRA-FEM graphical environment (reinforced concrete beam frame with a foundation slab)

• Creation of complex calculation models of buildings: above-ground structures, foundations, soil foundations (including pile foundations).
• Features of defining beam models in monolithic floors.
• Setting the rigidity and structural properties of elements according to current regulatory documents (SP RK EN 1992).
• Automatic generation of wind load on elements.
• Principles for the formation of calculated load combinations (CLC) according to SP RK EN 1990.
• Working with a spatial model of the calculation scheme, analysis of results, selection of reinforcement (including local mode).
• Setting up the display scale for reinforcement selection results.

Topic 2. General principles and methods for creating spatial calculation schemes in the LIRA-FEM graphical environment (reinforced concrete beamless frame with a foundation slab)

• Use of absolutely rigid bodies.
• Coordination of local axes of plate elements.
• Calculation of punching force.
• Calculation of the circuit for overall stability.
• Checking for specified reinforcement.
• Methodology for specifying hinges in rod and plate elements.

3. General principles and methods for creating spatial calculation schemes in the LIRA-FEM graphical environment (metal frame)

• Features of setting initial data: structural elements, bracing, vertical connection elements.
• Setting the rigidity and structural properties of elements according to current regulatory documents (SP RK EN 1993).
• Calculation of the circuit for overall stability.
• Taking into account and specifying geometric imperfections and second-order effects in the calculation of metal structures (geometric nonlinearity).
• Issuance of results of inspection and selection of sections of metal elements.
• Determination of loads on selected nodes from the remaining part of the scheme based on combinations of loads.

Topic 4. Automated creation of a soil model based on specified geological conditions. Calculation of soil bedding coefficients (GRUNT system)

• Setting engineering and geological conditions of the site in accordance with regulations, taking into account weak soils.
• Creation of a model of soil conditions based on geological sections.
• Taking into account the impact of buildings under construction and existing ones (construction in cramped conditions).
• Determination of the values ​​of settlement and distortion of foundations.
• Features of connecting a soil model to the finite element calculation model. Calculating the proper bedding factors for each foundation slab element.

5. Design of a multi-story spatial building for seismic impacts. Compliance with the requirements of SP RK EN 1998

• Modeling of a multi-story reinforced concrete building in the LIRA-FEM software package.
• Conducting dynamic calculations for seismic impacts.
• Taking into account eccentricities to masses, performing a combination of dynamic calculation results, modeling plastic hinges in column-beam joints, taking into account the plasticity of walls (stiffener diaphragms).
• Conducting a modal analysis of the design scheme and interpreting the results of the impact of seismic loads.
• The principle of setting initial data when calculating for given accelerograms.