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Steel Box Girders Steel box girders are usually adopted in very long span bridges where it is necessary to keep the self-weight of the structure as minimum as possible. Depending on the width requirements single and multiple cell girders are selected. Steel Box girders are used for footbridges curved in plan and also for bridges … Read more
Compressive Strength The compressive strength of any material is defined as the resistance to failure under the action of compressive forces. Especially for concrete, compressive strength is an important parameter to determine the performance of the material during service conditions. Concrete mix can be designed or proportioned to obtain the required engineering and durability properties … Read more
Three Major Design Philosophies A design philosophy is a set of assumptions and procedures which are used to meet the conditions of serviceability, safety, economy and functionality of the structure. Several design philosophies have been introduced from different parts of the world. Some of the design philosophies that has been used by engineers are Working … Read more
Interesting Facts about New River Gorge Bridge, the Gorgeous Fayetteville, West Virginia, United States. Total length of 924m with the main arch spanning over 518m. 267m above the New Rivers with a carriageway width of 21.1m. The New River Gorge Bridge was opened on the 22nd October, 1977. It was the world’s longest single span … Read more
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 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 Solar Ark – An Innovative Steel Structure The Solar Ark is an ark-shaped solar power facility in Japan owned by Sanyo. With over 5000 panels cladding to the structure, it produces approximately 530,000 kilowatt-hours on an annually. The maximum system power is630 kW. It is one of the largest solar buildings in the world. … Read more
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
How is Working Stress Method (ASD) different from Limit state method (LRFD or LFD)? Assumptions, Advantages and Comparisons Limit state method (LRFD or LFD) “A limit state is a condition beyond which a structural system or a structural component ceases to fulfill the function for which it is designed” Various limit states are Strength limit … Read more