Tunnel collapse in Coppell: one worker dead
A 29-year-old construction worker lost his life Thursday afternoon after a tunnel he was working in collapsed beneath a building in Coppell, according to Dallas Fire-Rescue officials. Emergency crews...
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Monsoon travel disruptions become history with new Kathekhola crossing
For residents of Dudiya and surrounding communities, crossing the Kathekhola River is no longer a seasonal challenge. A newly built concrete bridge has replaced years of uncertainty during the monsoon...
Keller announces recent North America leadership updates
David Finocchio has been promoted to Vice President of Business Development. David joined Keller in 2010 as a project manager and has since held several leadership roles in business development, inclu...
Mahakali bridge project reinforces flood-damaged riverbank with boulder dam construction
Gravel filling work is currently underway near the guide bund of the four-lane concrete bridge over the Mahakali River. The section of the riverbank that was washed away during flooding two years ago...
New Melville Bridge opens in Maitland, delivering safer and more resilient flood-resistant crossing over the Hunter River
After decades of regular flooding, residents in Maitland and the lower Hunter region now have a safer and more reliable route across the Hunter River, following the official opening of the new Melvill...
Industry Section
Keller's feature article in Foundation Drilling Magazine
Samuel DeMott and Matt Redfern have written a feature story in May/June's issue of ADSC Foundation Drilling Magazine discussing the California High-speed Rail Dutch John Cut and Cole Slough Bridge Fou...
Levee Digital Twin Platform Launches for California's Yuba River Corridor
Researchers at UC Berkeley, funded by Yuba Water, have unveiled the Levee Digital Twin Platform — a comprehensive, interactive monitoring system built for levee inspection and condition assessment alo...
Joining 44 other members of the Class of 2026, John Wolosick will be inducted during the NAC’s Annual Meeting in September.
Founded in 1999, the National Academy of Construction (NAC) recognizes industry leaders who have made outstanding, long-term contributions to the construction field and works to advance the industry t...
Keller's feature story discussing recent high-rise construction in South Florida.
Michael Meneses, Will Burgos, and James Hussin have written a feature story in May/June’s issue of DFI Deep Foundations Magazine discussing recent high-rise construction in South Florida. The article...
Development program prepares new engineers for success
After a successful pilot, Keller North America’s field engineer / project engineer development program has been expanded to give more ambitious entry-level engineers a clear path to career advancement...
Editor's Pick
Chongqing’s “Crystal” skybridge: A 300-metre horizontal skyscraper suspended between four towers
China’s Raffles City Chongqing development features a 300-metre-long structure known as The Crystal, a horizontal skybridge that connects several towers high above the city. Often described as a “hori...
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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
Example: longitudinal reinforcement for shear and torsion according to EC2
Given: For the rectangular section of Figure 1 calculate the longitudinal reinforcement for shear and torsion. The section considered has depth 1500mm, width 1000mm, d = 1450mm. The vertical membe...
Calculation of the second moments of area
The problem: Determine the second moments of area, Ixx and Iyy, for the sections indicated in Figures 2a to 2e. Tip: It is given that the total height and the area of the 457 x 152 x 52 UB...
Calculation of the cross-sectional area and the position of centroid
The problem: Determine the cross-sectional area and the position of the centroid for the sections shown in Figures 1a to 1e. Please consider that the origin of the coordinate system is located...
Overhanging beam: shear force and bending moment calculation
Calculate the shear force and bending moment values due to the imposed loading on the overhanging beam of Figure 1. Figure 1: The overhanging beam considered. The free-body-diagram is shown in F...
Time History Analysis: process and advantages
In the field of structural engineering and design, the examination of dynamic loads is significant and cannot be underestimated. Time history analysis stands out as a crucial approach to studying...
Bending stress in a beam element
Given: A simply supported beam of length L=5m is given in Figure 1a. The beam is subjected to uniform distributed load equal to 3.2kN/m. If the beam has a rectangular cross-section, as shown in...
Method of sections
Please determine the forces in the members BC, GC and GF of the pin-jointed plane truss shown in Figure 1 using the method of sections. Given: Figure 1: The pin-jointed plane truss considered. So...
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...