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
In prestressed concrete, a prestress force is applied to a concrete member and this induces an axial compression that counteracts all, or part of, the tensile stresses set up in the member by applied loading. In the field of bridge engineering, the introduction of prestressed concrete has aided the construction of long-span concrete bridges. These … Read more
Test your knowledge on design of concrete elements as per IS 456 concrete design code, Prepare for GATE , IES and other examinations. This test will also help graduate candidates appearing for interviews. Design of Reinforced Concrete Structures (IS456 Recommendations) Part 1 Design of Prestressed Concrete Part 1 Design of Prestressed Concrete Part 2 Design … Read more
Resilience and Modulus of Resilience Resilience. Resilience is the total elastic strain energy which can be stored in the given volume of metal and can be released after unloading. it is also equal to area under load deflection curve within elastic limit. Modulus of Resilience is defined as elastic strain energy per unit volume and … Read more
Proof Stress In some ductile materials such as Aluminium, Copper, Mild Steel, the yield point cannot be clearly defined during tension test, therefore yield stress is Unknown. For such metals design stress called PROOF stress is calculated using offset method. An offset of strain equal to given permissible plastic strain, eg at 0.2% for Al, … Read more
Failure Modes in beams There are two common types of failure in slender, non Prestressed flexural elements that carry the load in one direction only are Compression failure of the Compressive Chord “ductile flexural failure”: After yielding of the reinforcement, if no redistribution of forces is possible, the deformations of the beam become important while … Read more
Beam and Slab Floor System This system consists of beams framing into columns and supporting slabs spanning between the beams. It is a very traditional system. The relatively deep beams provide a stiff floor capable of long spans, and able to resist lateral loads. However, the complications of beam formwork, co-ordination of services, and overall … Read more
Dynamic Analysis Methods for Seismic Bridge Design Depending on the seismic zone, geometry, and importance of the bridge, the following analysis methods may be used for seismic bridge design: The single-mode method (single-mode spectral and uniform-load analysis) assumes that seismic load can be considered as an equivalent static horizontal force applied to an individual frame … Read more