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This webinar shows a bridge design carried out in 2017 for new Composite integral bridge.The B9090 White Bridge Replacement project was commissioned by The Highland Council, Designed by AECOM and constructed by RJ McLeod. The replacement bridge was commission to bypass a Category A Listed stone bridge, which was built in the early 1750. The new bridge is a 40m span integral steel/concrete composite structure designed to support the realigned B9090 over the River Nairn.

Section property must be applied when performing analysis as well as material properties. midas Civil provides 'Section Properties' function to define various section shape of structures. Section properties function has an option to define a geometry shape and to calculate section properties for the analysis. And also it has an option for the design feature in midas Civil. Therefore, you can use section properties function on your purpose. 

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In February 2019,  we hosted a webinar, "Case Study of Steel Composite Bridge Design" by Marco Bonomo, Senior Bridge Engineer, Atkins, UK

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

Introduction

Arch Bridges are one of the oldest types of bridges and have great natural strength due to its geometry. Since the weight of arch bridges is carried outward along the curve, from the arch to the supports, they can be the perfect choice for long-span erections. Many new developments and improvisations on the design and construction of arch bridges have taken place in recent years, one such is the utilization of Concrete-Filled Steel Tubular (CFST) structures to arch bridges. This article will mainly focus on the use of CFST structures in arch bridges and some examples of CFST arch bridges in China.

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Table of Contents 

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1. Introduction

2. When to go for Dynamic analysis?

3. Case Study

4. Conclusion

High-speed rail is becoming increasingly popular worldwide. Many countries are investing in high-speed rail as a way to reduce travel times, improve transportation efficiency, and reduce dependence on automobiles and air travel. The growth of high-speed rail has been driven by factors such as increasing urbanization, population growth, and the need to reduce carbon emissions from transportation.

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

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This case study covers the following aspects:

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This case study covers the following aspects:

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:

Bridges are one of the most important engineering structures in the world. Why? Because they connect people and societies all around the world! Bridge engineering companies in the world try to make incredible bridges. However, like any other structure, safety must be the top priority when building these bridges because people’s lives are at stake if something happens to the bridges. Skills for bridge engineers are also needed. The following content will talk about some of the worst bridge collapses in history and the engineering issues around them.

Contents of the article:

The Morandi Bridge:

An inspiration to a generation of engineers and a very costly learning opportunity

The centrifugal force (Horizontal Moving Load) has two components, the radial force and the overturning force. The radial component of the centrifugal force is assumed to be transmitted from the deck through the end cross frames or diaphragms and to the bearings and to the substructure. The overturning component of centrifugal force occurs because the radial force is applied at a distance above the top of the deck. The overturning component causes the exterior wheel line to apply more than half the weight of the truck and the interior wheel line to apply less than half the weight of the truck by the same amount. Thus, the outside of the bridge is more heavily loaded with live load. The overturning force is computed by taking the sum of the moments about the inside wheel and setting the sum equal to zero. The result is that the outermost girder will receive slightly higher load and the innermost girder will receive slightly lower load. Thus, it is also necessary to compute the condition with no centrifugal force, i.e., a stationary vehicle, and select the worst case.

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This case study covers the following aspects:

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