Results 1 to 10 of about 3,522 (242)

Evaluation of Prestress Loss Distribution during Pre-Tensioning and Post-Tensioning Using Long-Gauge Fiber Bragg Grating Sensors [PDF]

open access: yesSensors, 2018
Prestress loss evaluation in prestressed strands is essential for prestressed structures. However, the sensors installed outside the duct can only measure the total prestress loss.
Sheng Shen   +5 more
doaj   +2 more sources

Finite Element Analysis of Grouting Compactness Monitoring in a Post-Tensioning Tendon Duct Using Piezoceramic Transducers [PDF]

open access: yesSensors, 2017
With the development of the post-tensioning technique, prestressed concrete structures have been widely used in civil engineering. To ensure the long-term effectiveness of the prestressed tendon, the grouting quality of the tendon duct is one of the ...
Tianyong Jiang   +3 more
doaj   +2 more sources

POST-TENSIONING THE CONNECTION REGION OF PRECAST POST-TENSIONED BRIDGE GIRDERS FOR CONTINUITY [PDF]

open access: yesCivil Engineering Journal, 2018
In the study, a precast post-tension concrete girder was tested to examine the behavior of the structure before and after continuity and to evaluate the effectiveness of post-tensioning for continuity to resist positive and negative moments in the ...
Mutaz M. M. Taha, Yanmin Jia
doaj   +2 more sources

Rebar free high performance ductile concrete beams powered by CFRP and post-tensioning [PDF]

open access: yesScientific Reports
The present study investigates the flexural capacity of high-performance ductile concrete (HPDC) beams, with a focus on their reliability for large-scale applications.
Wisam Hamad   +2 more
doaj   +2 more sources

Short-Term Efficiency of Using Sustainable BFRP Bars in Post-Tensioning Systems for One-Way RC Slab [PDF]

open access: yesJES: Journal of Engineering Sciences, 2023
Basalt Fiber Reinforced Polymer (BFRP) bars are manufactured from sustainable natural materials. BFRP Young’s modulus constitutes weak performance to the serviceability limits in the structural reinforced concrete (RC) elements, but using post-tensioning
sameh yehia   +3 more
doaj   +1 more source

Effect of External Post-Tensioning Strengthening Technique on Flexural Capacity of Simple Supported Composite Castellated Beam [PDF]

open access: yesE3S Web of Conferences, 2021
This research is carried out to study the effect of the external post-tensioning technique on the flexural capacity of simply supported composite castellated beam experimentally.
Hashim Hayder A., Al-Zuhairi Alaa H.
doaj   +1 more source

Time-dependent behavior of full-scale precast post-tensioned (PCPT) girders: Experimental and finite element analysis

open access: yesCase Studies in Construction Materials, 2022
Excessive volumetric changes associated with shrinkage and non-uniform moisture and heat distribution along long-span girders induce unwanted curvatures.
Panuwat Joyklad   +4 more
doaj   +1 more source

Comparative effects of tensioning and sliding neural mobilization on peripheral and autonomic nervous system function: A randomized controlled trial

open access: yesHong Kong Physiotherapy Journal, 2022
Background: Although different types of neural mobilization (NM) exercises induce different amounts of longitudinal nerve excursion and strain, the question whether the increased longitudinal stress and nerve excursion from sliding or tensioning ...
Budour Yousif Alharmoodi   +3 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

Flexural Strengthening of Deficient Reinforced Concrete Beams with Post-Tensioned Carbon Composites Using Finite Element Modelling [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2020
The application of external post-tensioned steel bars as an effective way to strengthen an existing bridge has been so far used in many different countries.
Abuzar Hamzenezhadi, Mohammad Sharbatdar
doaj   +1 more source

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