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Strong earthquake struck Mexico: at least 10 people killed

A major 7.4 magnitude earthquake hit the southern Mexican state of Oaxaca on Tuesday June 23, killing at least 10 people and generating a small tsunami. According to U.S. Geologic Survey the eart...

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Carbon-nanotube Reinforced Composite Materials and Structural Health Monitoring

By reinforcing composite parts with carbon nanotubes (CNTs), researchers from Rey Juan Carlos University in Madrid structural health monitoring can be achieved. Carbon nanotubes provide electrica...

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Keller completes its first Vibro Concrete Column project in Singapore

Keller has completed its first-ever vibro concrete column (VCC) project in Singapore, opening a new market in the country. Vibro concrete columns can be used in a variety of soils to reduce settlemen...

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Roosevelt Bridge closed due to severe corrosion and structural issues

On June 18th, traffic on Roosevelt Bridge was ceased after a large crack was observed underneath the southern span of the bridge and structural issues on the northern span were found. During a sche...

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Thames Bray bridge widens following M4 upgrading project

Between May 30th and June 1st, Bray bridge, crossing over River Thames, was widened in order to meet the standards for the upgraded M4 motorway. Three new bridge beams were slotted into place on th...

Industry Section

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KELLER keeps running projects safely despite the COVID-19 outburst

Keller teams across the world are doing everything they can to mitigate the impact of the coronavirus outbreak and keep projects running safely wherever possible. In certain cases, Keller Colleagues...

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Follo Line Project Superb Documentary

A complex project which demonstrated KELLER collaboration and expertise at its best, Follo Line saw three different business units (and nearly 70 employees) work together to implement numerous ground...

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Keller helps Neste - a global leader in renewable products- towards a greener future

As the world looks to meet growing demand for low-carbon energy sources, Neste – a global leader in renewable products – is investing S$2.2 billion (€1.4 billion) to increase biofuel production in Si...

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Oil, gas and chemical solutions by Keller

Planned LNG (liquefied natural gas) storage facilities may require ground improvement to increase soil bearing capacity and control settlement, deep foundations to transfer loads to competent bearing...

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Keller Poland participated in the expansion of one of Europe’s busiest ports

Keller Poland has completed its first marine combi-wall project in Gdansk Port, Poland, helping with the expansion of one of Europe's busiest ports. Gdansk port on the southern side of the Baltic Sea...

Editor's Pick

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India demolishes skyscrapers that infringed environmental regulations

Officials decided to demolish 2 skyscrapers in India as they did not comply with the existing environmental codes. The skyscrapers were located in the municipality of Maradu, in the Kerala state of...

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Education

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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...

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Average shear stress in pressure vessel

A pressure-vessel head is fabricated by gluing the circular plate to the end of the vessel. If the vessel sustains an internal pressure of 500 kPa, determine the average shear stress in the glue. S...

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Temperature Change

The beam is fixed at end B and free at end A. It is loaded at end A with the concentrated force 4F. At the same time there is a temperature change ΔT. Calculate the length change Δx. (Modulus of elast...

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Calculate angular velocity, angular acceleration

The angular velocity of the circle is defined by the equation ω=3t2+2 rad/sec where t in sec. Determine the magnitudes of the velocity and acceleration of point B on the circle of 1m diameter when t=1...

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...