Chenab Bridge is being constructed over the Chenab River in the Himalayas. This arch-shaped steel bridge will become the world's highest railway bridge, with a total height of 359 m (1178 ft.) above the river, 35 m taller than the Eiffel Tower. It will connect Baramulla to Jammu.

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Background

In 2016, Kolkata witnessed a major steel bridge failure of the Vivekananda Road Flyover during construction which led to 27 deaths and 50 injured. The construction work of a 2.2km flyover began in 2009 and was expected to be completed in 2010. Although six years behind schedule, it was not yet completed the erection part till 2016 (Figure 1).

Geometric Properties of Sections

Geometric Properties of Sections

The geometric properties of sections, which are indicators of the structural performance and load resistance capacity of sections, are characterized by the section shape and dimensions, regardless of material properties. These section properties are needed to calculate the bending/shear stresses, deflections, strength, and buckling, which are essential factors for the overall structural design of bridges. 

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Seismic Design of Concrete Bridges

Kyle Turner, PE, SPRAT I, IRATA I

In September 2020,  we hosted a webinar, “How I Design Bridges : Seismic Design of Concrete Bridges" by Kyle Turner, P.E. from Michael Baker International.

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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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