Testing Confirms PVC Pipe Hydraulic Coefficients Are Conservative
Hydraulic research on new and in-service PVC pipe has confirmed that industry-recommended flow coefficients are conservative for design of pressure and non-pressure pipes. The PVC pipe industry has long recommended hydraulic design values of 150 for Hazen-Williams “C” coefficient and 0.009 for Manning’s “n” number. Recent hydraulics tests have confirmed that designs using these values are conservative. The first testing was conducted at the Water Research Laboratory at Utah State University....
AISI Publishes “Thermal Design and Code Compliance Guide for C-Shape Cold-Formed Steel Framing in Building Envelopes”
WASHINGTON, DC – The American Iron and Steel Institute (AISI) has published AISI D250-23, “Thermal Design and Code Compliance Guide for C-Shape Cold-Formed Steel Framing in Building Envelopes.” The guide was developed to assist users of AISI S250-21 w/S1-22 , North American Standard for Therm...
AISC Releases End-Plate Moment Connection Design Guide
CHICAGO – Structural steel designers have a valuable new resource for the design of end-plate moment connections in AISC Steel Design Guide 39, End-Plate Moment Connections, which is now available at aisc.org/dg. "It's a great addition to the AISC toolbox of publications," said Cives Steel Corporation Chief Engineer Brian Volpe, PE, SE, LEED AP. "The team did a fantastic job unifying Design Guides 4 and 16 and adding the latest research." The new design guide, written by Virginia Tech’s Ma...
AISI Seeks Cold-Formed Steel Research Proposals for 2024 Small Project/Fellowship Program
Proposals must be submitted to AISI by October 31, 2023 WASHINGTON, DC – The American Iron and Steel Institute (AISI) Standards Council is seeking research proposals for its 2024 Small Project/Fellowship Program. Launched in 2014, AISI’s Small Project/Fellowship Program identifies and provides funding for research projects that will significantly impact the reliability, performance and cost-competitiveness of cold-formed steel products. The program provides a streamlined mechanism for AISI’s...
AISI Publishes Design Examples to Illustrate Updated Provisions in AISI S100
WASHINGTON, DC – The American Iron and Steel Institute (AISI) has published AISI D102-23, “Illustrative Examples for Provisions in AISI S100-16 (2020) w/S3-22.” The document provides a set of 22 design examples that illustrate updated provisions included in AISI S100-16(2020) w/S3-22, North American Specification for the Design of Cold-Formed Steel Structural Members, 2016 Edition (Reaffirmed 2020) with Supplement 3, 2022 Edition. The examples were developed using the software Smath Studio and c...
Introducing A.I. TIMBER: The Future of Sustainable Construction
Produced by nature… with a little help from A.I. CRA’s latest startup Maestro prototypes “A.I. Timber”, an innovative construction material that reduces waste by preserving the original shapes of the trees. Instead of sawing unique logs into standardized boards, Maestro uses A.I. to fit them together like puzzle pieces. The project’s first prototype is on display at an exhibition in Shanghai, China. SHANGHAI, CHINA - Maestro, a new construction-technology startup born out of the design and in...
AISC Releases Complementary Materials for the 16th Edition Steel Construction Manual
CHICAGO - The American Institute of Steel Construction has released several new free resources to complement the hot-off-the-presses 16th edition of its Steel Construction Manual for download at aisc.org/16thedition. These additional materials include the v16.0 Manual Companion, v16.0 Shapes Database, v16.0H Historic Shapes Database, Basic Design Values Cards, and an Interactive Reference List. “These free, digital supplements allow us to share a vast amount of information easily,” said A...
Available Wednesday: 16th ed. Steel Construction Manual updated for 2023 with the latest AISC standards
We've upgraded your go-to steel reference with: New 50 ksi steel design tables Properties and dimensions for 210 new HSS shapes Revised and expanded discussion of prying action New and revamped tables for design of double-angle connections, single-plate connections, single-angle connections, and shear end-plate connections New section on the design of simple connections for combined forces Updated discussion on the chevron effect, as well as new information and a new table on...
S&T awarded $1.4 million from Army Corps to develop AI-based program for 3D printing concrete
ROLLA, Mo. – A Missouri University of Science and Technology research team led by Dr. Kamal Khayat has been awarded $1.4 million from the U.S. Army Corps of Engineers to develop an artificial intelligence program that will determine the best locally-available materials for 3D-printed concrete. This technology will allow the Army Corps to more quickly 3D print concrete structures without relying on the delivery of large amounts of construction materials. “By harnessing the power of AI, our...
LeadIT and GCCA launch Green Cement Technology Tracker
The Leadership Group for Industry Transition (LeadIT) and the Global Cement and Concrete Association (GCCA) have launched a new tracker, to help policymakers, industry experts, academics and the public monitor worldwide decarbonization efforts in the cement industry. The Green Cement Technology Tracker was unveiled today, at an international inter-governmental meeting focused on clean energy, which is taking place in India (CEM14-M18) Cement and concrete are vital to the built environmen...
Stormwater Interview with Robert Page, P.E., Vice President, HNTB
Santa Barbara County North Branch Jail Expansion
February Issue 2026
