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latest inventions in civil engineering

Despite generally open patent eligibility for their innovations, civil engineers, whether working in the private sector, universities, or government, take relatively few of their inventions to the patent office. The American founding fathers designed the patent system to spur innovation by rewarding inventors exclusive legal rights to protect their discoveries. Civil engineering subject matter likely ranked highly among patentable innovations envisioned by the founders, particularly for a young Republic struggling to build a new national infrastructure. Today's electrical engineers, though, out-file civil engineers by an estimated ratio of at least 8-to-1, per capita per year.

Probably the most striking examples of overlooked patent potential in civil engineering lay in a leading fountainhead of research and development – American research universities. More than 50 U.S. universities operate major civil engineering research facilities, most having thousands of square feet of testing space. The nation's public research universities operate a conspicuous share of the top testing facilities (see Figure 1 on page 30). Taken collectively, the civil engineering testing facilities of U.S. universities apparently dwarf the research capabilities of their private-sector and federal government counterparts.

Some Trends in Civil Engineering Research

Structural Engineering
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Structural Engineering

Design And Detailing Services
Detailing Services
Architectural Engineering
Computer Aided Design
Building Information Modeling
Intern Development Program
Steam Assisted Gravity Drainage
Design Of Shell And Spatial Structures
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Water Supply Challenges Confronting Steam-Assisted Gravity Drainage
Artificial Lift Systems for Steam Assisted Gravity Drainage
A Numerical Analysis of The Single-Well Steam Assisted Gravity Drainage
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Canada’s Present and Future Energy Requirements
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Design Strategies for Shell and Spatial Structures
Shape Optimization of Shell and Spatial Structure
Newton Method
Shell and Spatial Structures Symposium
International Association of Shell & Spatial Structures
Trends in Structural Mechanics: Theory, Practice, Education
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Progress in Structural Engineering, Mechanics and Computation
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Research Engineers International - World Class Structural Software, STAAD
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A Capstone Design Experience in Architectural Engineering Technology
UW Department of Civil and Architectural Engineering Faculty
Integrating the Boyer report into architectural engineering technology education at the University of Hartford
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A Look into China Architectural Engineering, Inc
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America's Infrastructure Engineering Dilemma
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Environmental and Infrastructure Engineering Firms Enjoy Robust Growth
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"Everything that can be invented has been invented!" This notorious quote has been attributed to Charles H. Duell, who was the commissioner of the U.S. Patent Office in 1899, but there is no evidence that he actually said this. And, why would he say that during a time when approximately 20,000 patents were issued each year? The Patent Act of July 4, 1836, required that each patent issued be numbered and recorded with the U.S. Patent Office.

By 1870, approximately 105,000 patents had been issued. Four decades later, in 1911, patent number 1 million was issued. Today, more than 7 million patents have been issued, with no end in sight. Patents, however, do not push the envelope of progress, ideas do. And I believe that it is safe to say that we are far from finished with good ideas.

One person who transformed an industry with his ideas (and yes, he patented them, too) was a daring, young,Austrian-born, German-trained engineer,Anton Tedesko. Read America’s first thin-shell barrel roof: A world record-holder, by Richard Weingardt, P.E. to learn more about this innovative engineer and how he brought the European concept of thin-shell concrete construction to America in the early 1930s.

High-rise leverages high-strength concrete: High reactivity metakaolin improves performance, by Richard Zap, CSI, of the Engelhard Corporation, and Michael Chusid, RA., FCSI, describes another pioneering idea within the concrete industry. The authors describe a relatively new type of pozzolanic supplementary cementitious material and the first 23-story high-rise to use it.

Beyond new inventions, many talented professionals are dedicated to improving established processes. This month’s Structural Engineer contains Solution to a stair problem: Reducing the costs of conflicting tolerances for building slabs and installing stairs, by Bruce A. Suprenant, Ph.D., P.E. This article describes who defines stair tolerances, how they are measured (or not measured), and why these create conflicts for the contractor. The author also suggests a method for addressing this problem, if the industry chooses to do so.

Also in this issue, the American Institute of Steel Construction’s Chief Structural Engineer Charles J. Carter, S.E., P.E., explains the improvements to one of the organization’s standards in The 2005 AISC Code of Standard Practice: An update reflects the current structural steel industry. Although this document is not new to the industry, the fifth edition addresses many new needs of the changing design and construction field.

Finally, our cover story, Parking partnership: Contractor and engineer collaborate for success in San Diego, by Shamini Wijay, P.E., and Andrew Raufi outlines how re-inventing the engineer-contractor relationship improved their performance on the city’s new parking structure.

As is evident by all of the articles in this month’s issue of Structural Engineer, inventions and improvements are ideas that will never end.