## Things You didn’t Know Chaotianmen Bridge – World Record Steel Arch Bridge

Things You didn’t Know about Chaotianmen Bridge – World Record Steel Arch Bridge The Chaotianmen Bridge is built across the Yangtze River, Chongqing, China. The total length of the main bridge and both west and east approaches is 1741 m, the span layout of Yangtze River Bridge is 190 + 552 + 190 m to … Read more

## Contreras Railway Viaduct Facts – 261 m Concrete Arch Bridge

Contreras Railway Viaduct Facts – 261 m Concrete Arch Bridge Contreras Railway Viaduct is one of the main structures on the Madrid – Valencia high-speed railway link. Upon completion, the structure became Spain’s largest concrete arch for a rail bridge. Villargordo del Cabriel stretch represents an example of the use of the state-of-the-art construction systems, … Read more

## The five major parts of Bridges – Concrete Span Bridge

The five major parts of Bridges – Concrete Span Bridge Even though there are various types of bridges to be discussed, in this post we will stick to major parts of Bridges – Concrete span bridges. Every bridge engineer should have a clear knowledge of the various terminologies used during the Bridge design process. During … Read more

## Sleeper Density in Railways with solved example

Sleeper Density in Railways Number of sleepers provided for one rail length of track is called sleeper density. If “N” is the length of one rail in meters, Sleeper Density = N+ X , (X –> 3 to 6) For a Broad Gauge track, total number of sleepers required for 1km length of railway track … Read more

## How to calculate Minimum number of Sleepers, Breathing and Theoretical Length in Long Welded Rails

How to calculate Minimum number of Sleepers, Breathing and Theoretical Length in Long Welded Rails Long Welded Rails is welded rail in which central part does not undergo any longitudinal movement due to temperature variation. A length of greater than 250 metre on Broad Gauge (BG) and 500 metre on Metre Gauge (MG) will normally … Read more

## Coning of Wheels in Railways : Theory and Purpose

Coning of Wheels in Railways : Theory and Purpose Theory The Surface of wheels are made in cone shape at an inclination of 1 in 20, and the same slope is provided in the rails (see fig), this is known as coning of wheels. The diameter of wheel is different at different cross section of … Read more

## Components of Railway Track

Components of Railway Track Gauge – Inner to inner distance between two rails. Types of Gauges Broad Gauge (BG) – 1.676m Meter Gauge (MG) – 1m Narrow Gauge – 0.762m Feether Track Gauge – 0.61m Ballast forms the Bed upon which railway sleepers or railroad ties are laid. It is packed between and around the … Read more