Results 61 to 70 of about 380 (177)

Mechanical, rheological, and durability performances of GGBS‐based concrete for potential application to prestressed structures

Structural Concrete, EarlyView.
Abstract Ground granulated blast‐furnace slag (GGBS) is a widely used clinker substitute in concrete, recognized for its potential to significantly reduce environmental impacts. However, its application in prestressed concrete remains limited in several countries, mainly due to concerns regarding early‐age mechanical performance and long‐term ...
D. Rolando Baldiviezo, Leonardo Todisco, Cristina Argiz, Carmen Andrade, Amparo Moragues, Jaime C. Gálvez, Hugo Corres   +6 more
wiley   +1 more source

Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method

Structural Concrete, EarlyView.
Abstract This study investigates the structural performance enhancement of reinforced concrete (RC) pier heads laterally strengthened with unbonded post‐tensioning (PT) to accommodate increased design loads following a deck replacement of an existing railway bridge.
Yujae Seo, Hyunjin Ju, Benjamin Täubling‐Fruleux, Alfred Strauss   +3 more
wiley   +1 more source

Experimental and numerical modeling of creep in different types of concrete

Heliyon, 2018
Creep in concrete, play a critical role in estimating losses in prestressed concrete structures, such as bridge girders, nuclear containment vessels, etc.
D. Harinadha Reddy, Ananth Ramaswamy
doaj   +1 more source

Influence of shear reinforcement detailing on the shear capacity of reinforced concrete beams

Structural Concrete, EarlyView.
Abstract Alternative shear reinforcement layouts that do not fully enclose the longitudinal tensile reinforcement can significantly improve the constructability of reinforced concrete (RC) members. However, their influence on shear transfer mechanisms is not yet fully understood. To address this gap, an experimental program comprising 10 shear tests on
Franz Untermarzoner, Michael Rath, Simon Leitner, Tobias Huber, Johann Kollegger, Patrick Huber   +5 more
wiley   +1 more source

Analytical investigation of the interfacial behavior of a prestressed concrete beam strengthened with a prestressed FRP-bonded plate

Vojnotehnički Glasnik
Introduction/purpose: Utilizing composite materials to reinforce reinforced concrete structures is now a very prevalent practice in the field of civil engineering. However, prestressed concrete construction does not usually use this method.
Hanane Mebsout, Mohamed Atif Benatta, Baghdad Krour, Oussama Benachour, Mohamed Bachir Bouiadjra, Nacer Rahal   +5 more
doaj   +1 more source

Determination of Prestress Losses in Existing Pre-Tensioned Structures Using Bayesian Approach. [PDF]

Materials (Basel), 2022
Moravčík M, Kraľovanec J.
europepmc   +1 more source

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

Phenotypic characterization of Arabidopsis thaliana mutants that alleviate root growth defects in a vitamin B6 biosynthesis mutant

The FEBS Journal, EarlyView.
Vitamin B6 is a critical molecule for plant metabolism and development. Rsr4‐1, a loss‐of‐function mutant in a vitamin B6 biosynthesis gene, has a distinct short root phenotype. Here we describe five novel suppressor mutants with an rsr4‐1 background that have normalized root growth and distinct phenotypic and molecular characteristics, representing a ...
Marcelina Parra, Paige Henning, Clayton Bailes, Sanja Roje, Hanjo Hellmann   +4 more
wiley   +1 more source

Reliability analysis of a prestressed bridge beam designed in serviceability limit state as recommended by NBR 6118 and 7188

Revista IBRACON de Estruturas e Materiais
Nowadays it is known that it is important to study the safety of structures to avoid tragic accidents or economic losses. The most widely used method in the world to evaluate the safety of structures is structural reliability.
P. H. C. DE LYRA, A. T. BECK, F. R. STUCCHI   +2 more
doaj   +1 more source