Results 121 to 130 of about 24,500 (257)

Impact of half‐joint failures on RC girder bridges: A robustness quantification study

Structural Concrete, EarlyView.
Abstract The robustness of bridge structures is critical to ensuring safety and service continuity, particularly in aging infrastructure exposed to degradation and unexpected loads. Reinforced concrete (RC) half‐joint bridges—widely built in Italy between the 1950s and 1970s—exhibit specific vulnerabilities due to inspection challenges, durability ...
Paolo Martinelli, Matteo Colombo
wiley   +1 more source

On the preservation of reinforced concrete architectural masterpieces: The challenges of the REcube project

Structural Concrete, EarlyView.
Abstract The preservation of reinforced concrete masterpieces from the 20th century poses a complex challenge. These structures often combine architectural, historical, and technological value, which standard engineering codes and conservation practices are not fully equipped to address. The Erasmus+ REcube project responded to this gap by promoting an
Elisabetta Margiotta Nervi, Giulio Zani, Marco di Prisco   +2 more
wiley   +1 more source

Strengthening of Steel Columns under Load: Torsional-Flexural Buckling

Advances in Materials Science and Engineering, 2016
The paper presents experimental and numerical research into the strengthening of steel columns under load using welded plates. So far, the experimental research in this field has been limited mostly to flexural buckling of columns and the preload had low
Martin Vild, Miroslav Bajer
doaj   +1 more source

Effects of Steel and Polypropylene Fiber Addition on Interface Bond Strength between Normal Concrete Substrate andSelf-Compacting Concrete Topping [PDF]

, 2012
Based on facts that the composite action in semi-precast and strengthened structural system depends on the bond strength of the interface between concrete faces of different ages, this preliminary research is aimed to investigate effects of mixed ...
Imam , Satyarno, Slamet, Widodo, Sri , Tudjono   +2 more
core  

Seismic performance evaluation of a century‐old RC columns for railway's structural concrete

Structural Concrete, EarlyView.
Abstract Since the Great Kanto Earthquake of 1923 in Japan, reinforced concrete (RC) has been adopted for railway bridge piers, and some of these structures, now over 100 years old, continue to support transportation in the capital city of Tokyo. Evaluating the seismic performance of these few remaining RC structures has become an urgent issue. Because
Kousuke Kuwakino, Chikako Fujiyama, Koichi Maekawa   +2 more
wiley   +1 more source

An Updated Review on the Effect of CFRP on Flexural Performance of Reinforced Concrete Beams

International Journal of Concrete Structures and Materials
This detailed review looks at how carbon fiber-reinforced polymer (CFRP) may be used to improve the flexural capacity of reinforced concrete (RC) beams. It investigates the history, characteristics, and research trends of FRP composites, assesses various
Ali Jahami, Camille A. Issa
doaj   +1 more source

Dual potential capacity model for short and deep reinforced concrete members containing steel fibers

Structural Concrete, EarlyView.
Abstract This study presents an analytical model for estimating the shear strength of short and deep steel fiber‐reinforced concrete (SFRC) members with a shear span‐to‐depth ratio less than 2.5. To this end, a dual potential capacity model (DPCM) is developed based on the demand‐capacity approach for evaluating the shear strength of SFRC beams that ...
Sun‐Jin Han, Deuckhang Lee, Hyunjin Ju, Dichuan Zhang   +3 more
wiley   +1 more source

Numerical analysis of debonding behavior of FRP sheets bonded to concrete focusing on mortar skin

Structural Concrete, EarlyView.
Abstract This paper proposes a novel simple method for finite element analysis (FEA) to simulate the debonding behavior of fiber‐reinforced polymer (FRP) sheets bonded to concrete. This study focuses on the mortar skin of the concrete surface layer, which fails during FRP sheet debonding.
Mitsuhiko Ozaki, Yasuhiko Sato
wiley   +1 more source

Boron/aluminum graphite/resin advanced fiber composite hybrids [PDF]

Fabrication feasibility and potential of an adhesively bonded metal and resin matrix fiber-composite hybrid are determined as an advanced material for aerospace and other structural applications.
Chamis, C. C., Lark, R. F., Sullivan, T. L.   +2 more
core   +1 more source

An enhanced analytical model for predicting shear strength in reinforced concrete beams with corroded reinforcement

Structural Concrete, EarlyView.
Abstract This paper presents an analytical model to predict the shear strength of RC beams affected by corrosion within the Level IIb framework of fib Model Code 2020. Corrosion is accounted for by (i) reducing the area of longitudinal reinforcement, (ii) degrading the yield strength of stirrups according to Imperatore's law, and (iii) reducing the ...
Anna Bontempi, Nico Di Stefano, Paolo Pizzini, Fausto Minelli   +3 more
wiley   +1 more source