Rectangular versus Parabolic Stress Block Design for IRS

midasBridge TeamJune 21, 2022

Introduction

 

Construction Analysis of Precast Bridge

midasBridge TeamMarch 4, 2021

In March 2020,  we hosted a webinar, “Case Study : Construction Stage Analysis of Precast Bridge" by Saathwik Vudayagiri, Structural Engineer, BECA.

Structural Analysis of Incrementally Launched Bridge

midasBridge TeamFebruary 22, 2021

This case study covers the following aspects:

 

1. Introduction to Incremental Launching Method (ILM)

2. Bridge Type

3. Modeling Concepts of temporary works 

4. Launching stage analysis using midas Civil

5. In-service stage analysis using midas Civil

6. Design as per AS5100

 

Why are the Losses of Prestressed Concrete Given by the Software not Match the Manual Calculations?

midasBridge TeamFebruary 4, 2021

Prestress does not remain constant with time. Prestress loss is nothing but the reduction of initial applied prestress loss to an effective value. Loss of prestressing affects the strength of members and also significantly affects the member’s serviceability. Prestress loss is classified into two types:

Trends of Prestressed Concrete I Girder Bridge

midasBridge TeamDecember 15, 2020

Please fill out the Download Section (Click here) below the Comment Section to download 80 Masterworks of Civil Engineering

 

Currently, Prestressed Concrete Beam Bridge, which is generally applied as the most economical bridge type for small and medium-sized bridges in construction works such as highways and national highways, has been introduced to the entire bridge construction field for almost 60 years after the technical proposal.


In this post, we will look at the initial development story and trends of the Prestressed Concrete girder.

 

Prestress Tendon Profile Layout Considering Real Construction

midasBridge TeamDecember 1, 2020

Please fill out the Download Section (Click here) below the Comment Section to download the 80 Masterworks of Civil Engineering

Top 10 World’s Longest Prestressed Concrete Girder Bridges

midasBridge TeamNovember 19, 2020

Prestressed concrete is a structural material that allows for predetermined engineering stresses to be placed in members to counteract the stresses of loads. It combines the high-strength compressive properties of concrete with the high tensile strength of steel. These prestressed concrete girder bridges are currently used in bridge construction all over the world. Research on materials and superstructures of bridges has shown that prestressed concrete girder bridges have the longest life span and require less maintenance than other bridges. Furthermore, these bridges are increasingly being used due to their aesthetic versatility, strength, quality, and reduced construction time.

 

Best Practices When Considering Post-Tensioned Girder Bridges

midasBridge TeamNovember 17, 2020

 

PSC Girder Bridge Assessment as per CS454

midasBridge TeamOctober 29, 2020

Please fill out the Download Section (Click here) below the Comment Section to download the Full Webinar PDF File


 

This 1-hour course will cover the moving load analysis and assessment design of a PSC girder bridge. Attendees will get many valuable tips on the common assessment design process of PSC bridges as per CS454.

 

In midas Civil 2020 v2.1, PSC bridge assessment as per CS454 has been newly implemented. During the online session, moving load analysis with All Model 2 and special vehicles will be demonstrated. Using the analysis results, assessment load effects and assessment resistances will be obtained, and they will be verified using adequacy factor and reserve factor. Ultimate limit state (flexure, shear, and torsion) and service limit state verification are provided in the tabular format and MS excel report.

Comparison of Theoretical and Software Results of Prestressed Tendon Loss

midasBridge TeamOctober 23, 2020

With the advent of the IT era in the 21st century, information that was previously unavailable in the engineering market has become possible. Engineering simulation using a computer program is one of them, and it is currently used in most engineering industries.

Design of Girder Span Bridge with PSC Sections

midasBridge TeamApril 20, 2020

Please fill out the Download Section (Click here) below the Comment Section to download the Full Webinar PDF File

 


 

A girder bridge is one of the most common types of bridge design. Prestressing a composite girder in the negative moment region increases its stiffness by preventing cracking of concrete under service loads. In this webinar, we share the design practices of girder span bridges in Sarawak and show which functions of midas Civil can be utilized for the effective modeling of this type of structure.