Laboratory Investigation of Slipform Construction for Use in Mass Concrete Structures
Author: K. L. Saucier
Publisher:
Published: 1974
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: K. L. Saucier
Publisher:
Published: 1974
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKAuthor: Waterways Experiment Station (U.S.)
Publisher:
Published: 1974
Total Pages: 664
ISBN-13:
DOWNLOAD EBOOKAuthor: U.S. Army Engineer Waterways Experiment Station
Publisher:
Published: 1976
Total Pages: 430
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Army. Corps of Engineers
Publisher:
Published: 1976
Total Pages: 438
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published:
Total Pages: 1386
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Superintendent of Documents
Publisher:
Published: 1975-11
Total Pages: 1402
ISBN-13:
DOWNLOAD EBOOKFebruary issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author: United States. Superintendent of Documents
Publisher:
Published: 1976
Total Pages: 1466
ISBN-13:
DOWNLOAD EBOOKAuthor: Kenneth L. Saucier
Publisher:
Published: 1974
Total Pages: 78
ISBN-13:
DOWNLOAD EBOOKA laboratory investigation was conducted to study applications of the slipforming technique in mass concrete construction. Opposite sides of large blocks (3 by 6 by 10 ft high (0.9 by 1.8 by 3.0 m)) were slipformed in a specially fabricated test frame using mass concrete mixtures. Variables included casting temperature, type and maximum size of aggregate, use of a lubricating admixture, slipping rate, type of form anchors, and type of slipform surface. (Modified author abatract).
Author: American Concrete Institute
Publisher:
Published: 1985
Total Pages: 1002
ISBN-13:
DOWNLOAD EBOOKEach number includes "Synopsis of recent articles."
Author: A. Michel Alexander
Publisher:
Published: 1981
Total Pages: 44
ISBN-13:
DOWNLOAD EBOOKDevelopment of the resonant frequency technique as a method for evaluation of concrete structures is in progress. It is desirable that structures be evaluated in place, nondestructively, and in real time. The availability of digital Fourier analyzers and mathematical functions such as spectra, coherence, and transfer relationships permits the analysis of the behavior of large structures under dynamic conditions in place and in real time. An impact system has been tested which was proven more economical and versatile than the sinusoidal system currently in use. With transient loading, all frequencies are applied to the structure simultaneously rather than being swept through one at a time. Because the resonant frequency of a structure is directly related to its dynamic Young's modulus and hence its mechanical integrity, the resonant frequency technique is useful in the field as well as in the laboratory. Factors that influence the soundness and safety of a structure, such as modulus, continuity, and boundary conditions (i.e. foundation and other restraints) also directly affect the resonant frequency. Some limited work has been done with both mathematical and physical modeling to develop measurement criteria that will improve prediction of the expected resonant frequency for structures with varying geometries and varying degrees of foundation restraint. The characteristic vibrational signature of a structure may be evaluated at selected time intervals in an effort to predict service life. Improvement in modal analysis and prediction of frequencies by mathematical modeling is needed. Field work has demonstrated the feasibility of the technique. (Author).