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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 21 Abstracts search results
Document:
SP59-17
Date:
January 1, 1979
Author(s):
P.W. Abeles
Publication:
Symposium Papers
Volume:
59
Abstract:
A mixed solution of conventional design with pre-tensioned tendons was suggested by F.v.Emperger in many possiblities in 1941. The preferred solution is a design in which the section is in compression under frequently occurring load (which may also be dead load). Another solution relates to avoiding visible cracks under working load. (Limited prestress, Class 2 CEB). The latter was successfully introduced by British Railways in 1948 and in Germany in 1951/53. Very statisfactory fatigue tests were carried out in Liège in 1951. Previously full prestressing, at which only compressive stresses occur, was considered the only satisfactory solution; but according to Leonhardt this is a waste of energy. T.Y. Lin has the greatest practical experience with partial prestressing with his method of load counterbalancing.
DOI:
10.14359/17778
SP59-18
Ben C. Gerwick, Jr.
Concrete Sea Structures have recently undergone rapid development, especially in the North Sea. Experience with these has shown that a number of aspects require special consideration, due to the character of the environmental forces and magnitude and combinations of loading associated with use in the sea.
10.14359/17779
SP59-19
Arthur R. Anderson
The term "code" as used in the construction industry is not applicable in the same sense to the shipbuilding industry. . .This paper reviews the history of codes for concrete ships and discusses the Federation Internationale de la Precontrainte (FIP) report, "Considerations for Design of Prestressed Concrete Ships." Design of the Arco-Pertamina liquid petroleum gas facility is described briefly.
10.14359/17780
SP59-10
W. Gene Corley
This paper describeds design provisions for shear in two-way slabs. Specifically, requirements of Chapter 11 of the 1971 ACI Building Code (1) are discussed. To assist in understanding the design procedure, the history of these provisions and test data that form the basis for some of the requirements are described.
10.14359/17771
SP59-11
M.P. Nielsen
This paper reviews the basis for the current CEB provisions governing the punching shear strength of slabs as laid down in the CEB Bulletin d'Information, No. 111, which contains a draft of an international Model Code for structures in concrete. The Model Code is still under preparation, which means that changes might take place before the final edition.
10.14359/17772
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