Topic
Embedment
About: Embedment is a research topic. Over the lifetime, 2441 publications have been published within this topic receiving 31444 citations.
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TL;DR: In this article, the authors performed experiments on small model piles with lengths ranging from 40 to 100 mm and diameters from 20 to 50 mm embedded in dense and loose cohesionless soil and applied lateral pull at levels between 40 and 320 mm above the ground surface.
Abstract: Centrifuge and conventional model studies in which short pile foundations were subjected to large overturning moments are reported. The centrifuge tests were carried out on small model piles with lengths ranging from 40 to 100 mm and diameters from 20 to 50 mm embedded in dense and loose cohesionless soil. Lateral pull was applied at levels between 40 and 320 mm above the ground surface. Tests were performed at accelerations between 12 and 50g to simulate the behavior of prototype piles ranging from 0.125 to 1 m in diameter. Soil packing, pulling height, pile geometry, and ground surface profile are shown to influence moment-carrying capacity significantly. Centrifuge tests were also carried out on embedded walls to establish empirical shape factors for potential use in conjunction with two-dimensional theoretical analyses. These shape factors were found to increase significantly with pile embedment ratio. Conventional tests at unit gravity performed on 100-mm-diameter piles ranging in length from 200 to ...
24 citations
TL;DR: In this article, a building is represented by an infinitely long shear wall resting on a circular foundation, embedded into an elastic homogeneous half-space, and both the dynamic interaction and the wave passage effects are considered.
24 citations
TL;DR: In this paper, the mixed boundary value problem is formulated as dual integral equations with the aid of Hankel transforms, and solutions to the inclusion problem are computed in addition to including existing solutions for zero and infinite embedment as degenerate cases.
Abstract: An analytical treatment is presented for the determination of the response of a vertically-loaded disc embedded in a semi-infinite elastic medium By means of Love's method of potential and a set of relaxed boundary conditions, the mixed boundary value problem is formulated as dual integral equations with the aid of Hankel transforms On the reduction of the dual integral equations to a Fredholm integral equation which features a closed-form kernel, solutions to the inclusion problem are computed In addition to including existing solutions for zero and infinite embedment as degenerate cases, the present analysis reveals a severe boundary-layer phenomenon which is apt to be of significance to this class of problems in general As illustrations, numerical results on the load-displacement relation, the response of the embedding medium, as well as the contact load distribution are included
24 citations
Journal Article•
TL;DR: In this article, the impact of wood density, fastener diameter, and loading characteristics on stiffness properties, ultimate strength, and strength degradation of load-embedment response of wood-based material when subjected to reversed cyclic loads was investigated.
Abstract: One of the most important properties governing performance of timber joints containing dowel-type fasteners is the embedment response of wood under the action of a loaded fastener. Previous investigations on load-embedment behavior of wood focused almost exclusively on monotonic loading condit ons. This paper describes a program of work to investigate the influence of wood density, fastener diameter, and loading characteristics on stiffness properties, ultimate strength, and strength degradation of load-embedment response of wood-based material when subjected to reversed cyclic loads. Mathematical functions were developed to describe both the envelope and hysteresis loops of the load-embedment response. A comparison of the model parameters reveals that initial stiffness and ultimate load increase with loading rate, wood density, and fastener diameter. Strength degradation occurs under both monotonic and cyclic loading for solid wood. The degree of strength degradation increases with any increase in loading rate, wood density, and fastener diameter, and presence of preloading history. No strength degradation occurs in plywood under either monotonic or reversed cyclic load.
24 citations
TL;DR: In this article, a pullout test was performed on 63 normal strength concrete specimens reinforced with carbon and aramid FRP (CFRP and AFRP) bars embedded in concrete.
Abstract: The bond behavior of reinforcing bars is an important issue in the design of reinforced concrete structures and the use of fiber reinforced polymer (FRP) rebars is a promising solution to handle the problems of steel reinforcement corrosion. This study investigates the bond characteristics of carbon and aramid FRP (CFRP and AFRP) bars embedded in normal strength concrete. A pullout test was performed on 63 normal strength concrete specimens reinforced with FRP and steel rebars with different embedment lengths and bar diameters. The average bond stress versus slip curve is plotted for all specimens and their failure modes are identified. The effects of the embedment length and diameter of an FRP rebar on its bond strength are examined in this work. The bond strengths obtained from the test results are compared with the predictions by the bond strength equation proposed by Okelo and Yuan (2005), and its validity is evaluated.
24 citations