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International Concrete Abstracts Portal

Showing 1-5 of 22 Abstracts search results

Document: 

SP27-04

Date: 

January 1, 1971

Author(s):

Mark Fintel and Fazlur R. Khan

Publication:

Symposium Papers

Volume:

27

Abstract:

A procedure is presented to analyze frames of multistory structures for the structural effects of differential elastic and inelastic shortening between adjacent columns or walls..Results are presented of a 6 1/2 year observation of elastic plus creep and shrinkage strains of a number of columns and walls in the second story of a 38 story building. The measured strains are compared with the analytically computed and found to be in acceptable agreement.

DOI:

10.14359/17175


Document: 

SP27-03

Date: 

January 1, 1971

Author(s):

ACI Committee 209

Publication:

Symposium Papers

Volume:

27

Abstract:

This paper presents a review of methods for predicting creep, shrinkage and temperature effects in concrete structures as related to reinforced beams and one-way slabs, two-way construction, prestressed beams, and composite beams. The paper is generally consistent with the ACI Building Code (ACI 318-71) and includes material indicated in the Code, but not specifically defined therein.

DOI:

10.14359/17174


Document: 

SP27-02

Date: 

January 1, 1971

Author(s):

James N. De Serio

Publication:

Symposium Papers

Volume:

27

Abstract:

This paper outlines some of the many problems and structural distress conditions which can be caused by insufficient provision in the design and construction if thermal changes are neglected. Four structures, completely different from each other are discussed.

DOI:

10.14359/17173


Document: 

SP27-07

Date: 

January 1, 1971

Author(s):

Donald W. Pfeifer, Donald D. Magura, Henry G. Russell, and W.G. Corley

Publication:

Symposium Papers

Volume:

27

Abstract:

This report describes field and laboratory tests to determine instantaneous and time dependent deformations of the concrete columns and core walls in a 70 story reinforced concrete structure. These columns and core walls have different diameters and thicknesses over the height of the structure and are made with four different concretes.

DOI:

10.14359/17181


Document: 

SP27-06

Date: 

January 1, 1971

Author(s):

Adrian Pauw

Publication:

Symposium Papers

Volume:

27

Abstract:

Computed theoretical deflections of a continuous five-span reinforced concrete box girder bridge are compared with actual observed values and with the designer's estimated deflections. An algorithm is developed to simplify calculations of changes in effective section rigidity due to changes in reinforcement, cracking of the concrete in the tensile zone and changes in the effective modulus of elasticity of the concrete.

DOI:

10.14359/17180


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