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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 17 Abstracts search results
Document:
SP231-01
Date:
October 1, 2005
Author(s):
L.R. Taerwe
Publication:
Symposium Papers
Volume:
231
Abstract:
In the early 1940’s Prof. G. Magnel performed extensive researchprogrammes on real scale prestressed concrete beams at Ghent University (Belgium) inorder to elaborate design methods for this new material. He also developed his ownanchorage system which was used until the mid 60’s in Belgium. He gave manylectures in several countries in which he explained in a simple way the principles ofprestressed concrete. He was also instrumental in the design of the first prestressedconcrete bridge in the USA, the Walnut Lane Bridge in Philadelphia and he was theauthor of the first English textbook on prestressed concrete. He designed one of thefirst PC railway bridges in Europe and the first statically indeterminate PC bridge in theworld. In the 1950’s many engineers from abroad spent some time in Magnels lab inGhent to perform research and to get acquainted with practical realizations.
DOI:
10.14359/14917
SP231-02
C. Burgoyne
The initial impetus to the application of prestressed concrete in the UnitedKingdom was heavily driven by the conditions imposed by the Second World War.Refugees from Germany, particularly Mautner and Abeles, brought skills andknowledge of tests carried out in France and Germany. The need to provide emergencystructures, both for military purposes and to meet civilian needs, together withshortages of many materials, especially steel, led to the construction of beams on ascale, and at a speed, which would not have taken place in more normal times. Thepaper covers developments in the UK from the outbreak of the war in 1939 up to theearly 1950s, when more normal times returned. This period of development is still notproperly documented because security conditions prevented the publication of fulldetails of the applications.
10.14359/14918
SP231-16
R.W. Furlong, Ph.D., FACI, HonMASCE
Career highlights are presented regarding Ned H. Burns, now recognized asa “Legend of the Prestressed Concrete Industry.” Dr. Burns’ childhood, family,marriage, military service, and education are described briefly. His development inresearch and teaching is chronicled as awards began to accumulate. Leadershippositions are indicated while awards continued in recognition of his excellence instructural engineering education and practice.
10.14359/14932
SP231-03
A. Schokker
Prestressed concrete is a relatively young form of construction in the UnitedStates. The development of the various types of prestressing materials, includinganchorages was critical to the success of prestressed concrete as we know it today.This paper reviews the history of prestressed concrete with a focus on post-tensioningrelated patents in both the United States and abroad. Early patents from 1945 andonward are included up through the present day. The 1950’s and 1960’s are a primaryfocus as the decades where prestressed concrete was taking a foothold in the UnitedStates.
10.14359/14919
SP231-15
H.R. Hamilton III, T. Labonte, and M.H. Ansley
Self-consolidating concrete (SCC) is a relatively new approach to makingconcrete and is characterized by its high flowability and resistance to aggregatesegregation in the plastic state. SCC has become a popular alternative for commercialprecast elements and is being evaluated for use in precast bridge girders. This paperoutlines structural testing of six precast, pretensioned, AASHTO Type II girders. Threewere constructed using SCC, and three using a conventional mix. The major tasksincluded performing plastic and hardened property tests, constructing SCC beamswithout vibrating, determining the prestress transfer length, monitoring the camber,and finally testing the beams in such a manner as to produce flexure and sheardominated failure modes. Results of the construction and testing are presented.
10.14359/14931
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