Bentley's Coffee Corner: Structural SEAPAC - Concrete Beam and Slab Design and Detailing with RCDC begins at 20 Oct 2022
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Structural Engineering Finalists in the 2022 Going Digital Awards in Infrastructure

The annual awards program honors the extraordinary work of Bentley software users advancing infrastructure design, construction, and operations throughout the world. Eleven independent jury panels se...

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Taiwan: 6.9-magnitude earthquake, buildings collapse

A 6.9-magnitude earthquake hit southeastern Taiwan on Sunday, causing buildings to collapse and triggering tsunami warnings. The quake hit the Chishang township in rural southeastern Taiwan and had a...

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Building walls with demolition waste - the poetry of Cyclopean concrete

Ancient cyclopean walls were built by overlapping raw stones, supported one on the other, without the use of mortar. The name derives from the Cyclops, the giants of Greek mythology, as their constru...

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Diaphragms

Introduction to Diaphragms As diaphragm is considered a structural element that can transmit lateral loads to the vertical resisting elements of a structure, i.e. columns and shear walls. The term...

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Bentley Systems to Host iTwin Developer Conference, Building Software for a Better World, Sept. 20

This virtual conference brings together the growing community of developers who are building digital twin applications for the design, construction, and operation of the world’s infrastructure. With...

Industry Section

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Design-build grouting program for a water-tight excavation at Baltimore CSX

In downtown Baltimore, increased flooding and impacted train operations led to a complete replacement of a storm drainage system, steps away from the Oriole’s Park at Camden Yards and the Baltimore C...

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Paul Schmall is President of the Moles

Keller announces Paul Schmall, Ph.D., P.E., has been named President of The Moles for the 2022 to 2023 term. Paul is Vice President in Keller’s Specialty Services business unit, which focuses largely...

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STAAD.Pro CONNECT Edition V22 Update 11

This release has focused principally on addressing a significant number of defects that have been identified in order to deliver a more robust solution. However, we have additionally made a number of...

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Ground Improvement project at University of Portland

Keller provided a ground improvement solution to mitigate lateral spreading and foundation support for new structures on the 35-acre Franz River campus. As part of the University of Portland’s 2013 M...

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SkyCiv Releases Section Analysis Software

The cloud structural analysis software company SkyCiv this week announced it has added the ability to perform cross sectional analysis on sections. Being able to perform 2D analysis on your sections...

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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Beams: maximum moment

Find the maximum moment of the above beam which is subjected to triangular vertical load. SOLUTION: ΣΜΒ = 0 → ΑΥ –(1/2)ql(l/3)=0 → ΑΥ = (1/6)ql ΣFY = 0 → ql/6 + BΥ –(1/2)ql=0 → BΥ = (1/3)ql Assum...

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Column in buckling

Consider a universal column 200mm x 200mm with a flange thickness of 10mm and web thickness of 7mm. The height of the column, which is fixed in concrete at its base, is 10m and the load is applied...

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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...

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...