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 paper, the authors proposed a more reasonable equation of bond strength of grout-filled splice sleeve, which predicted the measured bond capacity of this test more accurately than existing equations and eliminated the deviation according to the embedment length of reinforcing bars.
Abstract: The purpose of this study is to propose the more reasonable equation of bond strength of grout-filled splice sleeve. To accomplish this objective, total 60 full-sized specimens were tested under monotonic loading. The experimental variables are compressive strength of mortar, embedment length and size of reinforcing bars. Following conclusions are obtained; 1) If the adequacy of existing equations which estimate the bond strength of grout-filled splice sleeve are investigated, they underestimate the bond strength of grout-filled splice sleeve by 8-18%. Also the existing equations have a tendency to underestimate with decrease in the embedment length of reinforcing bars. 2) From the test result of bond failure, the equation which estimates the confining pressure of grout-filled splice sleeve was proposed by making multiple regression analyses of which independent variables are embedment length of reinforcing bars and compressive strength of mortar. This equation predicted the measured bond capacity of this test more accurately than existing equations and eliminated the deviation according to the embedment length of reinforcing bars.
8 citations
TL;DR: In this article, the authors present an experimental investigation on sand deformation above a group of two plate anchors using a digital image correlation (DIC) technique, and they find that anchor group efficiency occurs when there is an overlap in soil displacement fields.
Abstract: This article presents an experimental investigation on sand deformation above a group of two plate anchors using a digital image correlation (DIC) technique. The test setup developed for this study includes a test frame with loading and deformation measurement, a computer connected to a high-resolution camera and equipped with DIC software, and a test mold to host scale model anchor plates. A series of physical model tests were conducted under different configurations, including different embedment depths, anchor spacings, and sand densities. Based on the sand displacement fields obtained from DIC, it was found that anchor group efficiency occurs when there is an overlap in soil displacement fields. This overlap is influenced by the combination of embedment depth, sand density, and anchor spacing. There is a critical spacing that defines the spacing at which group anchors act individually. An empirical formula is proposed for the relationship between group efficiency and critical spacing for sand at different density conditions. The formula compares favorably with experimental results published in the literature.
8 citations
TL;DR: In this article, the authors proposed an analytical method through geometric transformation to calculate the ultimate bearing capacity at the tip of a pile in inclined rocks based on the characteristic line method, which can serve as an efficient method to estimate the bearing capacity of piles in inclined slope with small slope angle (typically less than 40°).
8 citations
01 Oct 2015
TL;DR: In this article, the authors investigated the mechanical and electrical behavior of PZT disk stacks embedded in asphalt pavement using a finite element analysis program, and suggested a stack transducer with 8 mm of diameter and 1mm of thickness of pZT disks, 10 mm of thickness and 42mm of diameter of nylon cover as optimal one for harvesting mechanical energy from asphalt pavement.
Abstract: This work investigated that the mechanical and electrical behavior of PZT disk stacks embedded in asphalt pavement using a finite element analysis program. The stacks were composed with PZT disks with different thickness and diameter and connected in parallel. At first, the displacement difference of pavement surface with and without transducer was studied. The nylon was selected to fabricate cylindrical package box from four kinds of materials. The voltage of stack transducer increased with the increase of the diameter and thickness of nylon cover, and decreased with the increase of the diameter of PZT disks and embedment depth. Considering pavement surface displacement, the voltage, cost and durability of transducer, the stack transducer with 8 mm of diameter and 1mm of thickness of PZT disks, 10 mm of thickness and 42 mm of diameter of nylon cover were suggested as optimal one for harvesting mechanical energy from asphalt pavement.
8 citations
TL;DR: In this article, numerical values of torsional spring constants with corresponding stress and displacement distribution are obtained for circular footings for various embedment. And the method of solution is equally applicable for finding the spring constants of rocking about a horizontal axis in circular footing.
Abstract: Numerical values of torsional spring constants with corresponding stress and displacement distribution are obtained for circular footings for various embedment. The presence of rigid discs (thin rock layer), and voids (loose soil pockets), below the surface are considered, and torsional stiffnesses are obtained. The stress distribution around a footing boundary is considered in the elastic range. The method of solution is equally applicable for finding the spring constants of rocking about a horizontal axis in circular footings.
8 citations