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Metro overpass collapse in Mexico City kills 24

A collapse of a subway overpass in Mexico City resulted in a least 24 deaths and more than 70 injuries. The accident occurred around 10:25 p.m. on Monday, May 3rd, along Line 12 of the metro s...

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Arch completed on world’s highest railway bridge in India

Indian Railways completed construction of the supporting arch for the world’s highest railway bridge. The bridge will be a critical link along India’s national infrastructure network as it located al...

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Researchers use photos and new AI tool to calculate stress and strain fields of materials

Researchers at Massachusetts Institute of Technology have developed a method to determine stress and strain distributions within a material based on an image depicting its internal structure. The...

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Low-cost community-based earthquake warning system under development in New Zealand

A ground-braking, low-cost, earthquake early-warning system is being developed in New Zealand. The community-based project is a collaboration between the New Zealand Earthquake Commission (EQC) an...

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Repairs needed for Washington State Bridges and Highways

Washington State infrastructure is in need of maintenance. Engineers and lawmakers are trying to find the funds to upgrade the state’s transportation network. About 72% of Washington's highways ar...

Industry Section

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Keller's Neutrogel®: A new cheaper and greener grouting material

A new grouting material called Neutrogel® that has minimal impact on soil and groundwater, a much lower carbon footprint and lower costs, has been successfully used on a Keller project for the first...

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Keller sets standard on UAE rail project

Keller is leading the way for ground-improvement works on the largest infrastructure project in the United Arab Emirates. A major new rail network that will create new connections among the nation’s...

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Keller expands local presence in Montreal, Quebec

Keller announced a new office in Montreal, Quebec, following an agreement to acquire the local TreviGroup assets. The acquisition furthers Keller’s commitment to the Quebec and Eastern Canadian marke...

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Keller's water treatment expertise helps DC project

While Keller is renowned throughout the world for its wide range of geotechnical solutions, perhaps less well-known is its expertise in groundwater behavior and decontamination. A good example of thi...

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SkyCiv Releases new Excel Plugin

In structural engineering, the power of Excel, especially in conjunction with macros, is renowned for its accessibility, flexibility, and computing power. The new SkyCiv for Excel Plugin breaks ne...

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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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...