Results 41 to 50 of about 145 (133)

Innovative model for accurate prediction of the transfer length of prestressing strands based on artificial neural networks: Case study

Case Studies in Construction Materials, 2020
This study provides a case study showing the effectiveness of utilizing Artificial Neural Networks (ANNs) in prestressed concrete. The effectiveness of prestressing is crucially linked to the transfer length (TL) of the prestressing strands.
Mohammad A. Alhassan, Ayman N. Ababneh, Nour A. Betoush   +2 more
doaj   +1 more source

Strand bond performance in prestressed concrete accounting for bond slip [PDF]

Engineering Structures, 2013
This paper presents the results of an experimental research program addressing the bond behavior of prestressing strands in pretensioned prestressed concrete members after anchorage failure has occurred. A test methodology based on measuring the prestressing strand force and strand end slip at the specimens free end was employed.
Martí Vargas, José Rocío, Serna Ros, Pedro, Hale, W. M.   +2 more
openaire   +2 more sources

Identification of invisible damage in prestressed concrete bridges—A demonstrator case using coda wave interferometry

Structural Concrete, EarlyView.
Abstract During their life cycle, prestressed concrete bridges are prone to wire breaks of their tendons due to fatigue or stress corrosion cracking. However, not all structures show visible cracking on the surface, which would provide timely warning of otherwise invisible damage. Brittle failure may occur.
Noah Sträter, Felix Clauß, Mark Alexander Ahrens, Peter Mark   +3 more
wiley   +1 more source

Horizontal end crack control and load-bearing capacity performance of hollow-type pretensioned girders through experimentally calibrated finite element models

Engineering Science and Technology, an International Journal, 2021
Prestressed concrete girders are prone to the formation of horizontal end cracks during prestress transfer. These cracks propagate and progress extensively in deeper hollow-type pretensioned girders with larger prestressing forces.
Bashir Ahmad Aasim, Abdul Khaliq Karimi, Jun Tomiyama, Yuya Suda   +3 more
doaj   +1 more source

Probabilistic models for mechanical properties of prestressing strands [PDF]

Construction and Building Materials, 2012
Abstract This study focus on the probabilistic modelling of mechanical properties of prestressing strands based on data collected from tensile tests carried out in Laboratorio Nacional de Engenharia Civil (LNEC), Portugal, for certification purposes, and covers a period of about 9 years of production.
Jacinto, Luciano, Pipa, Manuel, Neves, Luís C., Oliveira Santos, Luís   +3 more
openaire   +2 more sources

Flexural behavior of precast prestressed slabs with embedded building service systems

Structural Concrete, EarlyView.
Abstract Dry‐assembled precast concrete construction is rapidly spreading in many parts of the world due to the several advantages offered by industrialized construction. In order to speed up not only the assemblage of the structure, but also the full integrated building process, engineering systems (mechanical–electrical–plumbing) may be prefabricated
Bruno Dal Lago, Aleksei Abramov
wiley   +1 more source

Deflection‐based assessment of residual prestress in simply‐supported bridges accounting for creep variability

Structural Concrete, EarlyView.
Abstract Several test methods have been proposed in the literature for measuring the level of residual prestress, most of them involving either semi‐ or fully destructive techniques for local measurements which could be highly sensitive to boundary conditions and execution details.
Giuseppe Zarrella, Daniele Losanno, Alfred Strauss   +2 more
wiley   +1 more source

Experiment and FEM Modelling of Bond Behaviors between Pre-stressing Strands and Ultra–High–Performance Concrete

Journal of Materials and Engineering Structures, 2020
The objective of this paper is to investigate the bond properties of prestressing strands embedded in Ultra–High–Performance Concrete (UHPC).The UHPC was made in laboratory using local materials in Vietnam.Its mixture contains: silica aggregates ...
Duy Hoa PHAM, Ba Danh LE, Dang Tung KHUC, Thanh Quang VU, Trong Toan KHONG, Van Trinh DO, Quy Tuan NGO   +6 more
doaj  

Molecular insights and translational opportunities to enhance heat tolerance in rice

The Plant Genome, Volume 19, Issue 3, September 2026.
Abstract Heat stress is an increasingly serious threat to rice (Oryza sativa L.) productivity, yet the genetic and regulatory architecture underlying thermotolerance remain poorly resolved and fragmented across studies. Earlier research focused on individual pathways or specific developmental stages; however, recent advances now support an integrated ...
Prabhat Rana, Chanderkant Chaudhary, Rajat Pruthi, Mansi Sharma, Bhupinderjeet Singh, Ravi Kiran Reddy Kondi, Mallesham Bulle, Prasanta K. Subudhi   +7 more
wiley   +1 more source

Bayesian Inference of Fault Slip Heterogeneity and Overlap: Application to 2019 Ridgecrest Earthquakes and Afterslip

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Fault slip occurs in both seismic and aseismic styles with spatial variability across scales, yet non‐unique source inference limits our ability to resolve slip complexity and dynamics. Here we evaluate the effect of spatial smoothing regularization in Bayesian frameworks by comparing an unregularized (BUR) approach that samples distributed ...
Xiong Zhao, Junle Jiang
wiley   +1 more source