Keller's Keller Webinar Series: Liquefaction Mitigation begins at 27 Oct 2021
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Rocheport Bridge replacement project

In late September, Missouri Department of Transportation announced that the first phase of the I-70 Rocheport bridge replacement is set to begin. A set of bridges, one westbound and one eastbound...

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A novel system for structural integrity monitoring of an offshore fish farm

Fibre optic technology is introduced in a novel system of structural stress monitoring which is going to be tested on one of the world's most exposed fish farms, Salmar's Ocean Farm 1. Light Struct...

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Water pipe bridge collapses in Japan: people forced to line up for supplies

A water pipe bridge over the Kinokawa River in Japan collapsed on October 3. One day after the collapse, the water supply continued to be cut off in a large area in this west Japan city and the city...

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Georgia: Part of building collapses causing several fatalities

A five-story building collapsed in the Georgian Black Sea resort city of Batumi on Friday, and several people are believed to be trapped in the rubble. At least five people, including two children,...

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Keller acquires Subterranean

Keller North America (Keller) announces the acquisition of Subterranean (Manitoba) Ltd., a highly respected geotechnical contractor based in Winnipeg, Manitoba and the region’s leading caisson servic...

Industry Section

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Keller celebrates Global Diversity Awareness Month

October is Global Diversity Awareness Month and an opportunity to celebrate and increase awareness about diversity, and the positive impact it has in the workplace and wider society. Read more on Kel...

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SkyCiv hosts Structural Engineering Hackathon!

SkyCiv to Hold a Structural Engineering Hackathon in 2021 Leading Structural Analysis and Design software SkyCiv, will be holding a Structural Engineering hackathon from October 6 - 9th 2021. The eve...

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Off to a smooth start with Moretrench Industrial

Despite some regulatory delays, a major power plant modernization project in Florida got off to a smooth start on site, thanks to Keller company, Moretrench Industrial. View Latest Keller North Ameri...

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Keller brings expertise and environmental innovation to Norway hospital project

It’s a complex project. The new buildings will be right in the heart of the campus, linked to existing buildings, while the foundations need to be constructed in soft clays and, in some areas, low-he...

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Keller acquires RECON

Acquisition of specialty contractor RECON further strengthens Keller’s product range, sector diversity, and geographic footprint in the industrial services and environmental remediation markets. Kel...

Editor's Pick

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Concrete Buildings as Rechargeable Batteries

The energy that comes from the wind and the sun as a renewable source has become a growing necessity. As a result, new ideas about rechargeable batteries have gained ground to capture these intermitt...

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Education

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Maximum Factored Vertical Shear

A simply supported beam (Figure) with a span of L=20ft is subjected to a uniform service load of 1200 lb/ft, including self weight, and a live load of 900 lb/ft. Determine the maximum factored...

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Flexular Crack in Concrete Beam

For the simply supported beam of Figure 1, determine the uniformly distributed load, q, at which the flexural crack forms. The beam has a length L=7m, and f’c=25Mpa. Figure 1: Cross-section of Con...

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Calculate the vertical deflection of a beam

Calculate the vertical deflection of the beam (magnitude and direction) at the midpoint of the central span (point A) Solution Use virtual work method: Virtual Structure From Equilibrium: Shea...

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Truss vs Cable

Truss and cable elements are defined by their ability to carry solely axial loads. Nonetheless, since cables have no stiffness when loaded in compression, they function only in tension. Moreover,...

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Spring Assemblies in Series/Parallel: Two Springs in Series

Based on Figure 1, we get: where: In matrix form, the above can be re-written as: Example Figure 2: Two Springs in Series - Example  Calculate k1, δ2, and f3. Solution Ba...

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Calculate the variation in length of the rod

The rod of the picture is loaded with the force 2P which is uniformly distributed on Section D where applied. If the material of the rod is homogenous with Elastic Modulus E find the variation in len...

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Allowable shear force of the girder

Calculate the maximum allowable shear force Vmax for the girder. The welded steel girder is having the cross section shown in the figure. It is fabricated of two 500 mm x 50 mm flange plates and a 50...

Books

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Structural Engineering Solved Problems

Structural Engineering Solved Problems contains 100 practice problems representing a broad range of topics on the Structural Engineering (SE) and Civil PE exams. Each problem provides an opportunity t...

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Structural Depth Reference Manual for the Civil PE Exam, Fourth Edition

The Structural Depth Reference Manual prepares you for the structural depth section of the Civil PE exam. It provides a concise, yet comprehensive review of the structural depth section exam topics an...

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Structural Depth Practice Exams for the Civil PE Exam

Structural Depth Practice Exams contains two 40-problem, multiple-choice exams consistent with the NCEES Civil PE structural depth exam's format and specifications. Like the actual exam, the problems...