Results 11 to 20 of about 5,150 (292)

Research on Process of Longitudinal Vibration Underwater Acoustic Transducer Based on Acousto-Solid-Piezoelectric Coupling

open access: yes水下无人系统学报, 2023
Currently, the design process of longitudinal vibration underwater acoustic transducers only focuses on ideal conditions, but the production process has a certain impact on the relevant electroacoustic performance of the underwater acoustic transducers ...
Pengfei GENG   +4 more
doaj   +1 more source

Cyclic Behavior of Beam-Column Connections in Precast Structures

open access: yesFrontiers in Built Environment, 2021
The performance of precast concrete structures is greatly influenced by the response of beam–to-column connections. In this study, a new moment resisting precast concrete beam-column connection detail with post-tensioning bolts, made out of high yield ...
Hilal Meydanli Atalay, Sevket Ozden
doaj   +1 more source

Stability of traveling, pre-tensioned, heavy cables [PDF]

open access: yesJournal of Computational and Nonlinear Dynamics, 2017
18 pages, 12 ...
Dehadrai, Abhinav R.   +2 more
openaire   +3 more sources

Numerical Study of the Influence of the Interaction Distance, the Polymeric Strips Pre-Tensioning, and the Soil–Polymeric Interaction on the Performance of Back-to-Back Reinforced Soil Walls

open access: yesInfrastructures, 2022
This study describes the results of a series of 2D finite element method (FEM) numerical models of 6 m high back-to-back reinforced soil walls using the geotechnical software PLAXIS. These structures are used to support embankments, especially for bridge
Abdelaziz Brouthen   +2 more
doaj   +1 more source

RC column strengthening by lateral pre-tensioning of FRP [PDF]

open access: yes, 2003
This paper presents a unique strengthening technique for existing concrete columns that use expansive materials to apply lateral pre-tensioning. The technique increases the capacity and ductility of a column as well as achieving better utilisation of the
Ahmad   +13 more
core   +1 more source

Pre‐Tensioned Belts Overhanging Elastic Rollers [PDF]

open access: yesPAMM, 2005
AbstractSubject of this paper are deformation mechanisms in pre‐tensioned elastic belts, which are wrapped around rollers carrying elastic layers that support the belts over part of their width. By means of analytical models and the finite element method the corresponding deformations of the belts are predicted.
T. Daxner   +2 more
openaire   +1 more source

Out‐of‐plane reinforcement of masonry walls using joint-embedded steel cables [PDF]

open access: yes, 2020
The out-of-plane mechanism (rocking) of walls often causes fatalities and collapses of historic buildings during earthquakes. This paper addresses the problem of assessing the seismic resistance of walls subjected to out-of-plane bending, before and ...
Bisciotti, Giordano   +2 more
core   +2 more sources

Application of a new system of self-tensioning to the design of large-span wood floor framings [PDF]

open access: yes, 2016
[Abstract]This study describes a self-tensioning system in which the gravitational loads acting on a horizontal structural element are automatically converted to a post-tensioning force on that component.
Estévez-Cimadevila, Javier   +3 more
core   +2 more sources

Dynamic one-sided out-of-plane behavior of unreinforced-masonry wall restrained by elasto-plastic tie-rods [PDF]

open access: yes, 2019
Past earthquakes have shown the high vulnerability of existing masonry buildings, particularly to out-of-plane local collapse mechanisms. Such mechanisms can be prevented if façades are restrained by tie rods improving the connections to perpendiculars ...
Al Shawa, Omar   +2 more
core   +1 more source

Post-Tensioning Steel Rod System for Flexural Strengthening in Damaged Reinforced Concrete (RC) Beams

open access: yesApplied Sciences, 2018
In this study, a post-tensioning method using externally unbonded steel rods was applied to pre-damaged reinforced concrete beams for flexural strengthening.
Swoo-Heon Lee   +2 more
doaj   +1 more source

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