MIDASoft - Bridge Library

MIDASoft bridge library containing project case studies, practical applications, and engineer presentations.

Expert Tip: Understanding Retaining Wall Design with MIDAS - A Beginner's Video Guide

Expert Tip: Understanding Retaining Wall Design with MIDAS - A Beginner's Video Guide


Summary: In this video guide, we'll cover the basics of retaining wall design using MIDAS software. Geared towards MIDAS Civil beginners, we...
Expert Tip: Economical design for steel composite bridge

Expert Tip: Economical design for steel composite bridges


Economical design for steel composite bridge Summary This article delves into the cost-effective design of steel composite bridges, with a f...
Midas API: The Sky Is the Limit

Midas API: The Sky Is the Limit


Summary: The rapidly evolving construction industry demands cutting-edge technology to ease engineers' efforts. This blog explores how Midas...
Understanding Bridge Collapse of I 25, Colorado & Importance of RSI Analysis

Understanding the Bridge Collapse of I 25, Colorado & Importance of RSI Analysis


Summary: In this article you will get to know the key concepts and importance of RSI analysis for the railway bridge. If we don’t ensure pro...
Line Girder Analysis vs Finite Element Analysis

Line Girder Analysis vs Finite Element Analysis


Summary: The blog article discusses the differences between line girder analysis and the finite element approach. It also helps the readers ...
Streamlining Initial Cable Tension in Cable Stayed Bridges: The Midas Approach

Streamlining Initial Cable Tension in Cable Stayed Bridges: The Midas Approach


Summary: Determining the initial cable forces in cable-stayed bridges is a critical step in ensuring the structural integrity and stability ...
Beam Bridges: A Structural Marvel of Simplicity and Strength

Beam Bridges: A Structural Marvel of Simplicity and Strength


Summary: Beam bridges, also known as girder bridges, are one of the most common and straightforward types of bridges found worldwide. Despit...
Expert Tip: Curved Girder Analysis Part 3

Expert Tip: Curved Girder Analysis Part 3


I girder vs. tub girder Our next question may be “What are the differences between an I and a tub girder?”
Bridging the Gap: The Indispensable Role of Rail Structure Interaction

Bridging the Gap: The Indispensable Role of Rail Structure Interaction


What is Rail Structure Interaction? Rail structure interaction studies the interaction between railway tracks and concrete bridge structures...
Expert Tip: Curved Girder Analysis Part 2

Expert Tip: Curved Girder Analysis Part 2


The previous article (Curvature effects on a medium-span curved bridge) showed that we should be cautious to get reasonable torsional moment...

Expert Tip: Analysis of Suspension Bridges 5


Dr. Hirai was a Japanese engineer, professor, and researcher. In 1940, Dr. Hirai went to a movie theater and watched the news about the fail...

Expert Tip: Analysis of Suspension Bridges 4


Analysis of suspension bridges - Peery’s methods use integration To calculate the area of influence lines, Simpson’s method has been applied...
Suspension Bridges Unveiled: Where Engineering Meets Elegance

Suspension Bridges Unveiled: Where Engineering Meets Elegance


What are suspension bridges? A suspension bridge is a unique kind supported by large main cables suspended between two or more towers, often...

Expert Tip: Suspension Bridges 2


4th-order differential equation Eq(2) is a 4th-order differential equation, and we can imagine it is not simple to solve.

Expert Tip: Suspension Bridges 1


The Question We have structural analysis programs. Can we make the model (like other conventional bridges) and perform the analysis (as usua...
Recent Advancements in Prestressed Concrete Bridges

Recent Advancements in Prestressed Concrete Bridges


Introduction Prestressed concrete technology is widely used worldwide in the construction of various structures, especially bridges. Prestre...
Creep analysis

Expert Tip: Creep Analysis - Next Steps


Composite Section Analysis Finally we came to the composite section analysis. One of the best examples is from Dr. Gilbert and Dr. Ranzi (Ex...
Why do we need Pushover Analysis

Why Do We Need Pushover Analysis?


The limitations of linear static analysis in the seismic design gave rise to non-linear static analysis or Pushover analysis. Pushover analy...
concrete shear design

Expert Tip: Concrete shear design based on AASHTO LRFD 5


Solving the previous example from full iteration Now it’s time to solve the previous example from full iteration. For simplicity, interactio...
Expert Tip: Concrete shear design based on AASHTO LRFD 4

Expert Tip: Concrete shear design based on AASHTO LRFD 4


Findings and remarks 1. We can calculate the feasible crack angle ranges for each εx and vu/f’c combination. θ min corresponds to concrete c...
Blog Article on Concrete Shear Design - AASHTO LRFD 3

Expert Tip: Concrete shear design based on AASHTO LRFD 3


Optimum crack angle θ From the previous example, we can catch that there are some possible crack angle ranges for the given εx and vu/f’c. N...
The importance of API and its use

The importance of API and its use


What is Application Programming Interface (API)? The first thought that will come into your mind is exactly what is this API? and why a civi...

Expert Tip: Concrete shear design based on AASHTO LRFD 2


Longitudinal reinforcement Believe it or not, longitudinal forces are caused by shear, and we do need to design/check for these longitudinal...
Morandi Bridge Genova after collapse

The Morandi Bridge: Understanding the collapse of a suspension bridge


Morandi Bridge: An overview The Morandi Bridge (Officially: Viadotto Polcevera) was an architectural and engineering landmark since its cons...
Simple box culvert

midas Civil: 2D and 3D culverts


The different types of finite element models one can generate 2D, 3D, and 4D finite element models are employed to analyze structures. Since...

midas Civil: P-M Interaction Curve in Midas


Importance of the P-M interaction curve? As we all know, almost all compression members are subjected to moments along with axial loads, mai...
midas Civil: Seismic Analysis of Underground Structures

midas Civil: Seismic Analysis of Underground Structures


Typical underground structures include tunnels, subway stations, underground parking lots, culverts, conduits, etc. These structures should ...
Blog Article on Column Elastic Buckling Analysis

Expert Tip: Column Elastic Buckling Analysis


So you have learned about column buckling under a point load applied at the end of the column, do you know if columns can buckle under their...

Expert Tip: Finite Element Method Basics 4


In the FEM, the most critical question is “how many meshes do we need to get the correct (or reasonable) results?”

Expert Tips: Finite Element Method Basic 3


Continuing on to the third part of this multi-part blog, another option is a quadrilateral element. As always, let’s start with an example.

Expert Tips: Finite Element Method Basic 2


For the previous example, we can use high-order triangular elements. This element has six nodes per element and assumes the displacement is ...

Expert Tips: Finite Element Method Basic 1


The scary part of FEM is sometimes FEM gives wrong results without any error message. The analysis may be meaningless if an engineer cannot ...

Expert Tip: Prestressing Strands Profile with MCT Tool


The midas model is for a multi-channel prestressed girders bridge 30 ft span and 24.75 ft width. The bridge is composed of 9-channel prestre...

The Importance of Soil-Structure Interaction in midas Civil


Due to the peculiar site soil conditions, as the great deformation capacity of its clay layers, the effects of soil-structure interaction mu...

Understanding Creep & Its Effect in Bridges


A concrete specimen when subjected to load undergoes response which is both immediate & time dependent. The time dependent effect can be maj...

midas GTS NX: Modeling Soil-Structure Interaction - Piles, Abutments, and Retaining Structures


In this MIDAS Intro Session, our MIDAS engineer introduced the modeling of Soil-structure interaction (SSI) which is a physical phenomenon i...

Irregularities in Bridges: Challenges & Their Implications


Due to the complex intersection at various places, such as highways, river crossings, and railway crossings, there is a continuously growing...

midas FEA NX: Simulate Concrete Cracking and Cracked Section Behaviors Using Various Approaches


In this MIDAS Intro Session, our MIDAS engineer introduced approaches to simulate cracked RC sections based on AASHTO LRFD/ACI codes, the fu...
The Importance of Seismic Analysis and Its Understanding

The Importance of Seismic Analysis and Its Understanding


The seismic analysis is part of the structural analysis and the calculation of the response of a structure to earthquakes. It is part of the...

Webinar: Analysis of I-10 Sunset to River Rd – UPRR Bridge using midas Civil


In this webinar session, our MIDAS Expert Engineer Zac Taylor P.E. and Charlie Golek from Kimley-Horn shared their experience and insights u...

midas FEA NX: Buckling Analysis for Slender Structural Members


In this MIDAS Intro Session, our MIDAS engineer introduced the underlying principles of buckling analysis, ways to interpret the modal analy...
basic understanding of the Load Rating of Bridge as per AASHTO LRFR in midas Civil

Understanding Load Rating of Bridge as per AASHTO LRFR


The bridge load rating is a procedure to evaluate the adequacy of various structural components to carry predetermined live loads. In simple...

midas FEA NX: Fatigue Analysis for Structural Connections


In this Intro Session our MIDAS engineer explained show how midas FEA NX uses 20-node solid isoparametric elements to perform life estimatio...

Project Application: No. 05561 Bridge Project by Connecticut Department of Transportation


This new series of blog articles will introduce a few project applications of midas Civil. You can expect to see the size of the structure, ...

Expert Tips: Analysis and Design of a Concrete Network Tied Arch Bridge for California High-Speed Rail


In our previous webinar, Analysis and design of a concrete network tied arch bridge for California high-speed rail, our MIDAS Expert Enginee...

midas FEA NX: Evaluating Creep Response Using Time-Step Analysis


In this Intro Session our MIDAS engineer explained how midas FEA NX uses 2D/3D elements to simulate the time-dependent material using age-de...

Connecting Meshes Using Links


In the previous blog basic finite element mesh explained, we have looked into several types of conventional elements within the 1D, 2D, and ...

Webinar: Analysis and Design of a Concrete Network Tied Arch Bridge for California High Speed Rail


In this webinar session, our MIDAS Expert Engineer Hadi T. Al-Khateeb, Ph.D., S.E., P.E. a Senior Bridge Engineer at Jacobs provided an over...

Structural Connections and Contacts


Structural connections are usually the weakest part of a steel structure; however, they are rarely the subject of structural analysis. To si...

Basic Finite Element Mesh Explained


To ensure stable analysis performance and reliable result approximation, meshing is important. Meshing is the process to create finite eleme...

Expert Tips: Geometric Nonlinearity Explained


Dr. Seungwoo Lee has talked about some fundamental differences between linear and nonlinear analysis in structural engineering in the past. ...

Webinar: 2D Excavation Supported by Tiebacks & Rakers


In this workshop, Top MIDAS Expert Parsa Heydarpour Ph.D., P.E., M.ASCE , Project Engineer at Subsurface and Tunnel Engineering presented on...

Steel Bridge Nonlinear Buckling Analysis


One of the objectives when designing structures is to prevent them from failures. Structural failure can happen when the structural elements...

Ensuring Element Quality for Mesh Size Transition


Keep Running into Analysis Errors When Everything Looks Right? It’s not uncommon for the analysts to run into the same analysis error after ...

Midas NFX: CAD or CAE? [Infograph]


CAD or CAE? What's the difference? They might sound similar, but CAD and CAE are very different disciplines with their own goals, practices ...

Midas NFX: Boiler Cover Plate Case Study


Analysis Purpose : Improvement for Deformation of Cover The engineers performed linear static analysis to reduce deformation of cover plate ...

Midas NFX: Geometry Simplification (2019 midas NFX Webinar Series)


Presentation Overview Why to simplify? The decision to suppress or preserve geometry strongly depends on the analysis context and the applic...

Midas NFX: Introduction to Analysis for Designers [IAD 1]


1. Know The Basics The number of companies introducing Computer Aided Engineering (CAE) software with 3D Computer Aided Design (CAD) capabil...

Midas NFX: Assembly Analysis [IAD 6]


From the series Introduction to Analysis for Designers... 6. Assembly Analysis Most products are composed of several parts, so assembly anal...

Midas NFX: Analysis Results Evaluation [IAD 7]


From the series Introduction to Analysis for Designers... 7. Analysis Results Evaluation In this series, we have been discussing the procedu...

Midas NFX: Thermal-Structural Coupled Analysis [IAD 5]


From the series Introduction to Analysis for Designers... 5. Thermal-Structural Coupled Analysis Generally, a structure expands or shrinks w...

Midas NFX: Innovative CAE Solution


For your competitive edges, Innovative CAE Solution The Expected Effects of Acquisition For Analysis Engineers, "60% Reduced Analysis Time 1...

Midas NFX: Why We Love Structural Analysis (And You Should, Too!)


First comes the idea. A wonderful spark of ingenuity springs from the depths of our conscience and rushes through the thalamus to reach the ...

Midas NFX: Topology Optimization [Infograph]


“How The Heck Did You Get That Shape?” Topology optimization is a novel and rapidly growing field of structural mechanics that offers great ...

Midas NFX: Mesh For Accuracy [IAD 2]


From the series Introduction to Analysis for Designers... 2. Mesh For Accuracy To perform most of Finite Element Analysis (FEA), a method wi...

Midas NFX: Finite Element Analysis Types - The Ultimate Cheat Sheet


Finite Element Analysis Types: The Ultimate Cheat Sheet Structural Analysis Structural analysis is the study of how a physical structure rea...

Midas NFX: Boundary Conditions of Eigenvalue Analysis [IAD 4]


From the series Introduction to Analysis for Designers... 4. Boundary Conditions of Eigenvalue Analysis In the previous section, we examined...

Midas GTS NX: 2D Tunnel Lining


Detail of this Session This tutorial introduces how to do tunnel lining structural analysis before cross section design.

Midas GTS NX: 3D embankment consolidation


Detail of this Session Through consolidation analysis of 3D construction stage, verify the ground deformation (settlement) and stress change...

Midas GTS NX: 3D Excavation and Piled-Raft Foundation


Summary This tutorial identifies the soil–structure interaction by analyzing construction stage of 3D retaining wall excavation and a piled ...

Midas GTS NX: 3D tunnel connection analysis


Detail of this Session The purpose of tunnel analysis is to see the effect of tunnel construction on surrounding facilities and to review th...

Midas GTS NX: 3D Tunnels with Intersecting Galleries


Detail of this Session This webinar will introduce how to perform finite element analysis for sequentially excavated tunnels with multiple i...

Midas GTS NX: 4  Ways To Reduce the Cost of Underground Retaining Walls


The LeBreton LRT project was an actual project that completed construction and opened it to the general public on September 14, 2019. Since ...

Midas GTS NX: Bridge 3D Soil Structure Interaction Methods Comparison


This session has been prepared upon the request by the Office of Earthquake Engineering in California Department of Transportations(Caltrans...

Midas GTS NX: Congrats to Our 44th Annual DFI Conference Winner!!


MIDASoft exhibited at the DFI 44th Annual Conference on Deep Foundations, on October 15-18, 2019, at the Hilton Chicago. The theme of the co...

Midas GTS NX: Dam Seepage Analysis


Detail of this Session In this tutorial dam stability is verified under full water level and sudden draw-down conditions through 3D seepage ...

Midas GTS NX: Design of Grand Ethiopian Renaissance RCC Main Dam


Giorgio Pietrangeli Alberto Bezzi Claudio Rossini Alessandro Masciotta Davide D’Alberti

Midas GTS NX: Excavation by Tunnel Boring Machine in 3D FEM


TBM is becoming one of the most common tunnel excavation methods in cities with limited space because other methods such as open-cut or NATM...

Midas GTS NX: Fully Coupled Analysis of an embankment during settlement


The attendee will learn the use of several advance functions of GTS NX, which allows the numerical analysis of settlement by 2 methods. From...

Midas GTS NX: GTS NX Interfaces AutoCAD - Soil–Pile Interaction Analysis


Summary GTS NX has multiple interfaces with various CAD formats and structural (building and bridge) software for the most advance 3D Geotec...

Midas GTS NX: Leaning Into Safety with SSI


Bonanno Pisano and Gherardo diGherardo were tasked with the honor of the ceremonial complex of monuments that would enrich the Piazza dei Mi...

Midas GTS NX: TBM in Soft Soil


SUMMARY This webinar showed how to use the Finite Element Method (FEM) to simulate the staged construction of a tunnel by a Tunnel Boring Ma...

Midas GTS NX: midas GTS NX 2019 v1.1 Release: Thermal Analysis


Summary The new thermal analysis module includes heat transfer, thermal stress, and seepage-thermal stress analysis types. This analysis typ...

Midas GTS NX: Moving train load time history analysis


Detail of this Session Train vibration is periodic loading phenomenon, which occurs as a result of train wheels passing above the ground sur...

Midas GTS NX: Pile Foundation Design and Analysis


Detail of this Session This online technical seminar will introduce the FEM approach to consider soil-structure interaction for shored excav...

Midas GTS NX: Pile Raft Foundation Analysis with Superstructure and Substructure


Detail of this Session This online technical seminar will basically introduce 3D modelling of pile-raft combination in GTS NX .Geotechnical ...

Midas GTS NX: Results comparison between GEOSTUDIO and MIDAS GTS NX models


Many engineers are using software like GeoStudio Suite from GeoSlope for 2D geotechnical analyses. Recent advances in computer modeling and ...

Midas GTS NX: Semi Coupled Analysis: Slope & Dam Stability


Summary Climate change has intensified weathering effects due to rain, leading to higher frequency of structural and slope failures designed...

Midas GTS NX: Software Comparison for Mesh Export & Analysis - GTS NX & FLAC 3D


The purpose of this webinar was to compare the calculation and results between finite difference (FDM) and finite element methods (FEM) on s...

Midas GTS NX: Soil Structure Interaction Analysis of Skyscraper in Brazil


Summary The focus of the case study will be a soil structure interaction analysis by the direct method of a 55 story (168 m) building in the...

Midas GTS NX: Soil Structure Interaction for Shored Excavation using 3D FEM Analysis


Detail of this Session This online technical seminar will introduce the FEM approach to consider soil-structure interaction for shored excav...

Midas GTS NX: Suction Pile under Lateral Loading in 3D


Summary The suction piles, commonly used as part of deep marine foundations, are fixed to the bottom of the sea by the suction created after...

Midas GTS NX: The Future of Ontario's Transit Network


To date, the Eglinton Crosstown Transit project, a 19-kilometer light rail line, was budgeted as the most expensive infrastructure project i...

Midas GTS NX: Training: Liquefaction Analysis of Bridge Abutment with UBC SAND model


Summary The response of pile foundations to lateral soil deformation induced by liquefaction during an earthquake is a key design considerat...

Midas GTS NX: Tunnel Analysis with a Structural Approach - 3D Lining


And here we reached the end of this series. So far, in the first part, we introduced some of the most relevant aspects of tunnel design, we ...

Midas GTS NX: Tunnel Excavations in 3D FEM


Summary This session focuses on numerical analysis of shallow tunnels in uneven terrains, which frequently cause soil-structure interaction ...

Midas GTS NX: Tunnel With A Structural Approach - 2D Lining


In the first part of this short series, we introduced tunneling projects with a structural approach, we also went into detail about some of ...

Midas GTS NX: Tunneling with a Structural Approach


Tunnel projects are a rather unique challenge. That's because, tunnels to put it loosely (no pun intended), are underground/buried roadways ...

Midas GTS NX: Why carry out a soil-structure interaction analysis in very soft soil?


SUMMARY The objective of the webinar is to compare the use of 3D solid soil elements vs 1D soil springs,for soil structure interaction analy...

Midas GTS NX: We'll be exhibiting at DFI 44!


MIDASoft Exhibiting at DFI’s 44th Annual Conference on Deep Foundations

Midas Gen: Steel Building Design as per AISC LRFD 10


Detail of this Session Steel is a ubiquitous material. All the structures around us contain steel in some form -- be it rebars or girders. O...

Midas Gen: Steel Building Design Comparison (Fixed vs Soil Springs)


MIDAS GEN has a new interface with MIDAS GTS NX, 3D geotechnical software, which allows the import/ export of the structure and results for ...

Midas Gen: Export 2·3D CAD from Your Structural Design


midas Design+ is a unit member design software. (Click here to go to the main product page). Currently, we are working on developing a new 2...