BASIC RESPONSE FUNCTIONS FOR ELASTIC FOUNDATIONS
APPROXIMATE, CLOSE-FORM EXPRESSIONS ARE PRESENTED FOR THE RESPONSES TO BOTH HARMONIC AND IMPULSIVE EXCITATIONS OF A MASSLESS, CIRCULAR, RIGID FOUNDATION WHICH IS SUPPORTED AT THE SURFACE OF AN ELASTIC HALF SPACE AND IS EXCITED HORIZONTALLY, VERTICALLY, OR IN ROCKING MOTION. THE IMPULSE RESPONSE FUNCTIONS CONSIDERED INCLUDE: (1) FUNCTIONS FOR THE DISPLACEMENTS OF THE DISK DUE TO UNIT IMPULSIVE FORCES; AND (2) FUNCTIONS FOR THE FORCES NECESSARY TO PRODUCE UNIT IMPULSIVE DISPLACEMENTS. THE FUNCTIONS OF THE FIRST TYPE ARE ALSO EVALUATED NUMERICALLY, AND THE RESULTS ARE USED TO ASSESS THE ACCURACY OF THE ANALYTICAL APPROXIMATIONS PROPOSED. SOME COMPARISONS ARE ALSO MADE WITH RESULTS OBTAINED FOR A VISCOUSLY-DAMPED, SIMPLE OSCILLATOR WITH OR WITHOUT MASS. WITH THE IMPULSE RESPONSE FUNCTIONS PRESENTED, ANALYSES OF THE TRANSIENT RESPONSE OF FOUNDATIONS AND FOUNDATION-STRUCTURE SYSTEMS CAN BE CARRIED OUT DIRECTLY IN THE TIME DOMAIN. THIS APPROACH MAY BE MORE EFFICIENT OR OF WIDER APPLICABILITY IN SPECIFIC APPLICATIONS THAN THE CORRESPONDING FREQUENCY-DOMAIN APPROACH. /ASCE/ME/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
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Supplemental Notes:
- PROC PAPER 10483 3 APP
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Authors:
- Veletsos, A S
- Verbic, B
- Publication Date: 1974-4
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 189-202
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Serial:
- Journal of Engineering Mechanics
- Volume: 100n
- Issue Number: nem2
- Publisher: American Society of Civil Engineers
- ISSN: 0733-9399
- EISSN: 1943-7889
- Serial URL: http://ascelibrary.org/journal/jenmdt
Subject/Index Terms
- TRT Terms: Dynamics; Elastic analysis; Footings; Foundations; Soil structure; Vibration
- Old TRIS Terms: Elastic analysis (Structural); Foundations (Structures)
- Subject Areas: Bridges and other structures; Geotechnology; Highways;
Filing Info
- Accession Number: 00210094
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 16 1974 12:00AM