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Advanced seismic analysis and performance-based design

with convenient workflow and accurate result.

 

 

 

midas Civil for Seismic Analysis

midas Civil for Seismic Analysis

 

 

 

 

 

 

 

Seismic analysis and performance-based design are

more important than ever. Specialized seismic features let you tackle

any seismic issues without a cumbersome process.

From simple static analysis to a nonlinear time history analysis,

midas Civil software can efficiently handle any seismic project.

A better fiber section for extracting train value for CHBDC,

better performance-based pushover workflow for AASHTO,

and more advanced (friction pendulum) inelastic hinges.

Achieve the advanced analysis, convenient workflow, and

accurate results with midas Civil.

 

 

 

 

 

 

 

Static Analysis

 

Static Analysis


In midas Civil, you can represent the seismic load using a static load in the direction lateral to the structure. The program has different functions that allow you to apply point loads and uniform/variable load patterns on the bridge to simulate the seismic load in an effortless and precise way.

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Pushover Analysis

 

Pushover Analysis


Execute a performance-based design using force or displacement control in midas Civil. Define the hinge properties using manual or automatic calculation and consider Geometric Nonlinearity due to large displacement. midas Civil also allows you to perform pushover analysis considering the nonlinear soil springs. Select the load pattern (Based on a static load case, mode shape, uniform acceleration, etc.) that best suits your project

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Response Spectrum Analysis

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Response Spectrum Analysis


In midas Civil, the Response Spectrum Analysis calculates modal responses using the natural periods obtained by Eigenvalue analysis considering Eigenvectors or Ritz vectors. midas Civil has specific functions for reviewing the mode shapes, frequencies, and modal participation factors of the entire bridge, considering superstructure and substructure. The program allows you to select from different types of modal combinations.

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Inelastic Time History Analysis

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Inelastic Time History Analysis


Midas Civil allows you to perform elastic and inelastic time history analysis. When considering inelastic, you will be able to easily define fibers using different material and modeling functions to simulate the nonlinear behavior of your bridge. In a structure with multiple supports, midas Civil can apply different time history forcing functions in ground acceleration to various supports at varying times. The time-history-specific functions can easily extract the results including the dissipated energy.

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Boundary Nonlinear Time History Analysis

 

Boundary Nonlinear Time History Analysis


Boundary nonlinear time history analysis is used to analyze structures with nonlinear support conditions such as base isolators, viscous dampers in a seismic event. Midas Civil has multiple types of devices such as Viscoelastic Damper, Gap, Hook, Hysteresis System, Base Rubber, and Friction Pendulum System Isolators used in the seismic analysis. The time-history-specific functions can easily extract the hysteretic behavior of the devices.

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Explore seismic projects from midas users 

 

California High Speed Rail
Coronado Bridge
Truckee River Bridge
Fourth Street Pedestrian Overpass

 

 

 

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Try it yourself, Find out special pricing!

 

seismic-ebook

Download seismic analysis guide

 

 

 

Featured webinar for seismic analysis

Soil Foundation Structure Interaction and Ground Motion Selection
Structural dynamic using the beam-spring model and non-linear time history analysis is currently recognized as one of the most accurate tools for seismic design and analysis of bridge structures. Selection of ground motion intensity with regard to its frequency content relative to the natural frequency content of the bridge structure is essential to estimate its seismic response.
Pushover Analysis of A Torsionally Eccentric Cellular Abutment
The Truckee River Bridge is designed as a single span bridge simply supported on cellular abutments that is proposed to carry California State Route 89 over the Truckee River in the city of Tahoe City, CA. The cellular abutments allow bike paths to pass below the structure at each side of the river.
Seismic Design of Concrete Bridges
Kyle Turner, P.E. from Michael Baker International, presented the lesson about Seismic Design of Concrete Bridges. There are differences between building a new bridge and widening or replacing an existing bridge. When you build a new bridge, there are more alternative options and fewest constraints.

 

Featured blogs for seismic analysis

Do We Really Know The Foundation Performance During Liquefaction?
In 2010, the M8.8 Maule Chile earthquake impacted most of central Chile. It was catastrophic to say to least resulting in over 500 lives lost, millions of home lost and over USD 30 billion in economic losses. It remains as a stoic reminder for all, especially geotechnical engineers, that we have yet to master and navigate the earth.
Pushover Analysis
With more users asking us questions regarding pushover analysis and its applications in midas Civil, we want to share the answers to some of these common questions to our user community. 
Plastic Hinges
Pushover analysis has become an essential tool for the design and analysis of nonlinear bridge structures, and plastic hinges are used in midas Civil to simulate the non-linear behavior of structural elements. In this session, Yong Yang, principal structural engineer from Jacobs, will be demonstrating how plastic hinges can be set up quickly by the automatic determination of cross-sectional properties and member material through midas Civil's general section design (GSD) module.

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