Results 11 to 20 of about 381 (175)

Optimization of cable pre-tensioning force in cable-stayed bridges by simplifying the structural model with a case study of Lali bridge [PDF]

open access: yesمهندسی عمران شریف, 2023
Cable-stayed bridges are bridges in which the deck is connected directly to the towers by diagonal cables. These bridges are mainly known by the length of the middle span, which often falls between the span lengths of suspension bridges and bridges ...
M. Ravan, A.R. Ghiami Azad
doaj   +1 more source

Experimental testing of residual strain and displacement development in pretensioned BFRP reinforced concrete beams [PDF]

open access: yesMATEC Web of Conferences, 2022
The utilisation of fibre reinforced polymers (FRPs) as reinforcement for concrete elements has attracted attention mainly due to their high tensile strength, light weight and corrosion resistance.
Pavlović Ana   +3 more
doaj   +1 more source

Pre-Stress Losses in FRP Pre-Stressed Reinforced Concrete – Subject Overview

open access: yesArchives of Civil Engineering, 2018
Fiber reinforced polymers (FRPs) due to their specific high-strength properties become more and more popular and replace traditional structural materials like conventional steel in prestressed concrete structures. FRP reinforced structures are relatively
Przygocka M., Kotynia R.
doaj   +1 more source

Effects of Automated Emergency Braking and Seatbelt Pre-Pretensioning on Occupant Injury Risks in High-Severity Frontal Crashes

open access: yesFrontiers in Future Transportation, 2022
In high-severity crashes, occupant protection is challenging. Automated Emergency Braking (AEB) and seatbelt pre-pretensioning (PPT) are means to improve occupant protection; the purpose of this study was to quantify their effects on occupant injury ...
Ekant Mishra   +5 more
doaj   +1 more source

Biomechanical properties of a novel biodegradable magnesium-based interference screw

open access: yesOrthopedic Reviews, 2016
Magnesium-based interference screws may be an alternative in anterior/posterior cruciate ligament reconstruction. The well-known osteoconductive effects of biodegradable magnesium alloys may be useful.
Marco Ezechieli   +7 more
doaj   +1 more source

Experimental Analysis of Pretensioned CLT-Glulam T-Section Beams

open access: yesAdvances in Materials Science and Engineering, 2018
The bending behavior of T-section beams composed of a glulam web and an upper cross-laminated timber flange was studied. The influence of two fundamental factors on the bending strength and stiffness was considered: the wood species used for the webs and
J. Estévez-Cimadevila   +3 more
doaj   +1 more source

A theoretical and experimental study on the pre-tensioning and anchorage of composite materials based on shape memory alloys

open access: yesCase Studies in Construction Materials, 2023
Prestressing technology can not only improve the bearing capacity of beam but also improve the utilization rate of carbon fiber-reinforced polymers (CFRPs). However, the existing prestressing and anchorage devices are complicated and have many components,
Zihan Li   +4 more
doaj   +1 more source

Nonlinear finite-element analysis of embedment behavior of metal washer in bolted timber joints

open access: yesJournal of Wood Science, 2021
The pretensioning force in bolted joints enhances the lateral strength of the connections, and causes the embedment of metal washers into wood. Despite the significance of embedment behavior in the design of bolted joints, its mechanism has yet to be ...
Masaki Teranishi   +4 more
doaj   +1 more source

The Seat Angle Role on Moment-Rotation Response of Bolted Angle Connections

open access: yesElectronic Journal of Structural Engineering, 2009
Effect of the seat angle stiffness on moment-rotation response of the bolted top-seat angle connections is studied in this paper by using finite element method (FEM).
A. Pirmoz, F. Danesh
doaj   +1 more source

Modelling of Multi-Bolted Systems at the Pretension Stage – Part 1: Mechanical Characteristics of the Contact between the Joined Elements [PDF]

open access: yesArchives of Metallurgy and Materials
The subject of the paper is the modelling of multi-bolted connections that are at the pretensioning stage. Taking a systematic approach to the modelling issue, the connection was treated as a composite of four subsystems: a bolt set, a pair of joined ...
R. Grzejda, K. Kwiatkowski
doaj   +1 more source

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