midas Gen enables us to apply almost all types of seismic loads encountered in reality. One can easily generate static seismic loads on a building structure for each story, and select the applicable standard. Seismic analysis can be performed while implementing dynamic loads.
In general, the response spectrum analysis method using mode analysis is mainly used as the dynamic analysis method. The advantage of the mode analysis method in seismic design is that the response of each mode can be easily obtained by using the design response spectrum without using time history analysis.
Through eigenvalue analysis the natural frequencies of the building is calculated and the mode shapes based on the vibration period of the building is shown.
midas Gen provides response spectrum based on various international building codes.
Pushover analysis of a 3- dimensional frame structure used for performance based design in midas Gen can be carried out for reinforced concrete, structural steel, masonry and steel-concrete composite sections.
Pushover analysis built into midas Gen is one of the nonlinear static analysis methods that effectively evaluate the behavior and limit states of structures after yielding.
Pushover hinge types provided by midas Gen include Beam/Column, Wall, Truss, and General Link/Point Spring Support. It also supports fiber sections.
For the seismic design and assessment of a structure, midas Gen offers a wide range of hysteresis hinge models in the inelastic time history analysis.
Supported hysteresis hinge models
- Kinematic Hardening, Origin-oriented, Peak-oriented, Cloug
- Degrading Trilinear, Takeda / Slip/ Tetralinear, Modified Takeda / Tetralinear
The inelastic hinge element types provided by Gen include Beam, Column, Wall, Truss, and General Link.
Boundary nonlinear elements are provided to analyze the inelastic behavior of structures caused by earthquake loads.