Author: Narbey Khachaturian
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
Report on Survey of Literature in Connection with the Dynamic Bearing Capacity of Soils
Dynamic Bearing Capacity of Soils
Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category : Clay
Languages : en
Pages : 184
Book Description
Publisher:
ISBN:
Category : Clay
Languages : en
Pages : 184
Book Description
A Model Study of Dynamically Loaded Square Footings on Dry Sand
Author: Jack K. Poplin
Publisher:
ISBN:
Category : Engineering models
Languages : en
Pages : 114
Book Description
The investigation reported herein was undertaken to develop an approach to modeling displacements of surface and shallow-buried footings on dry sand subject to high-intensity, single-pulse loads. A hypothetical shallow-bured structure with an isolated footing loaded by airblast overpressure produced by detonation of a nuclear weapon was assumed for design of load pulses on nine model footings used: footing widths of 4.5, 6.0, and 7.5 in. and depth-of-burial to footing width ratios of 0, 0.5, and 1.0. The principles of similitude were used to scale length, force, and time in the models. The models were placed in mobile test bins of uniform, fine, dry sand (90 percent relative density) and subjected to dynamic and static loading. Nondimensional load-displacement relations dependent only on depth-of-burial ratio were developed relating maximum displacement to peak dynamic load, footing width, and soil shear strength gradient. When the dynamic response of the footings in the form of reaction-displacement curves was compared with static response, an increase in initial stiffness and ultimate strength was observed for dynamic loading. However, these dynamic increases were greatest when the static shear strength was lowest, i.e. footings on the surface, and were least for footings buried at a depth equal to its width where the static overburden produced a substantial increase in shear strength. (Author).
Publisher:
ISBN:
Category : Engineering models
Languages : en
Pages : 114
Book Description
The investigation reported herein was undertaken to develop an approach to modeling displacements of surface and shallow-buried footings on dry sand subject to high-intensity, single-pulse loads. A hypothetical shallow-bured structure with an isolated footing loaded by airblast overpressure produced by detonation of a nuclear weapon was assumed for design of load pulses on nine model footings used: footing widths of 4.5, 6.0, and 7.5 in. and depth-of-burial to footing width ratios of 0, 0.5, and 1.0. The principles of similitude were used to scale length, force, and time in the models. The models were placed in mobile test bins of uniform, fine, dry sand (90 percent relative density) and subjected to dynamic and static loading. Nondimensional load-displacement relations dependent only on depth-of-burial ratio were developed relating maximum displacement to peak dynamic load, footing width, and soil shear strength gradient. When the dynamic response of the footings in the form of reaction-displacement curves was compared with static response, an increase in initial stiffness and ultimate strength was observed for dynamic loading. However, these dynamic increases were greatest when the static shear strength was lowest, i.e. footings on the surface, and were least for footings buried at a depth equal to its width where the static overburden produced a substantial increase in shear strength. (Author).
Analytical Study of Dynamic Bearing Capacity of Foundations
Author: George E. Triandafilidis
Publisher:
ISBN:
Category :
Languages : en
Pages : 204
Book Description
An analytical study was undertaken to develop a general approach for the bearing capacity of foundations subjected to time dependent transient loads. This phase of the investigation has been restricted to cohesive soils. The approach is based on a number of simplifying assumptions which provide an expedient way of calculating the resulting angular rotations as functions of time. Solutions have been developed to permit the designer to readily calculate the maximum angular rotations provided the relation between time and the intensity of the dynamic pulse can be expressed by means of a simple mathematical relation. The resulting differential equation of motion has been evaluated for both an initially peaked triangular pulse and a rectangular pulse. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 204
Book Description
An analytical study was undertaken to develop a general approach for the bearing capacity of foundations subjected to time dependent transient loads. This phase of the investigation has been restricted to cohesive soils. The approach is based on a number of simplifying assumptions which provide an expedient way of calculating the resulting angular rotations as functions of time. Solutions have been developed to permit the designer to readily calculate the maximum angular rotations provided the relation between time and the intensity of the dynamic pulse can be expressed by means of a simple mathematical relation. The resulting differential equation of motion has been evaluated for both an initially peaked triangular pulse and a rectangular pulse. (Author).
Nuclear Science Abstracts
Dynamic Bearing Capacity of Soils
List of Publications of the U.S. Army Engineer Waterways Experiment Station
Author: U.S. Army Engineer Waterways Experiment Station
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 430
Book Description
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 430
Book Description
Dynamic Bearing Capacity of Soils
List of Publications of the U.S. Army Engineers Waterway Experiment Station
Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
Dynamic Bearing Capacity of Soils
Author: Jack K. Poplin
Publisher:
ISBN:
Category : Concrete footings
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category : Concrete footings
Languages : en
Pages : 146
Book Description