Process in midas Gen
Time history analysis has a procedure similar to Pushover analysis. After running the analysis, the member force, hinge status, and story drift results should be checked.
Hinge Models
- Kinematic Hardening Hysteresis Model
- Origin-Oriented Type Hysteresis Model
- Clough Type Hysteresis Model
- Takeda Type Hysteresis Model
- Normal Bilinear Type Hysteresis Model
- Slip Bilinear Type hysteresis model
A structural model that includes nonlinearity in a distributed fashion, using finite fiber elements, is able to characterize in higher detail the reinforced concrete elements and is thought to capture more accurately response effects on such elements.
It supports generating a Mesh shape and arranging rebar automatically.
Concrete > Kent & Park Model
- Fiber Cell Result Plotting
In order to define Time History Load, the Analysis Method, Initial Load Consideration, and Damping Method should be selected as shown below.
It provides Hinge Status, Member Force/Deformation, and Energy Graph.
- Hinge Status
- Member Force/Deformation
- Energy Result
Gen supports to check the results of deformation, velocity, and acceleration by time at specific node or hinges in graph and text report.
- Result Curve : Force-Deformation Curve for Each Members
- Result Curve: Time(sec)-Deformation Curve
Gen is supporting to convenient function for checking the results of member force and deformation.
Maximum and average values for multiple selected ground waves are provided in the result table.
- Beam force table for Max. result
Consider Time History results in the design by inputting the load combinations.
As test result, In the case of the model with 4000-analsys steps, about 5000 elements and 4000 hinges, it took about 7 minutes. And, in the case of the model with 3000 analysis steps, about 1500 elements and 6000 hinges, it took about 5 minutes. Recently, the analysis speed has been improved by 2 times.
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