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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13,500 bored piles on a groundbreaking oil refinery project
Keller has delivered one of its largest projects, constructing 13,500 bored piles for the development of a groundbreaking oil refinery in Rajasthan. The project that Keller is involved in will be one...
Applying ground freezing in major New York tunnel project
Keller applied ground freezing in the largest infrastructure project ever conducted in Suffolk County, New York. Keller is one of the few companies in North America to offer ground freezing technique...
SkyCiv Engineering release new Mobile App
SkyCiv is excited to announce the new release of its new Structural Engineering Mobile App, featuring a number of helpful tools and access to a model viewer to review and share models. SkyCiv is rela...
New bridge building method : The "umbrella" method
A new bridge construction method, which was introduced by structural engineers at the Vienna University of Technology in 2006, was applied on a bridge in Austria. The innovative concept of the method...
Industry Section
Keller is taking a lead role on a Miami transport project
Keller will participate in a Miami project in which, for the first time in 50 years, auger cast piles will be utilized. The $800 million Signature Bridge is part of a major regeneration plan in Miam...
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...
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...
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...
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...
Editor's Pick
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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Publications
An innovative low damage seismic solution for unreinforced clay brick infill walls Pounding effects during an earthquake, with and without consideration of soil-structure interaction A reconnaissance report on two Iran, Makran Earthquakes Seismic retrofitting solution of an adobe masonry wall Cyclic testing and comparison of locally CFRP confined HSS braces and buckling-restrained braces A multimode pushover procedure for asymmetric buildings under bidirectional ground motion Mechanical properties of brick masonry with different types of bonds Framework for developing fragility relations of high-rise RC wall buildings based on verified modelling approach Relative safety margins of code-conforming vertically irregular high-rise buildings Performance based evaluation and design of reinforced concrete frames with strong masonry infill
Education
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,...
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...
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...
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...
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...
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...
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
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...
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...
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...