Results 201 to 210 of about 1,953,392 (279)

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

open access: yesStructural 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   +3 more
wiley   +1 more source

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

open access: yesStructural 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   +3 more
wiley   +1 more source

Experimental and analytical investigations on the effect of steel fibers on the crack behavior and strength of dapped‐end connections

open access: yesStructural Concrete, EarlyView.
Abstract Reinforced concrete (RC) dapped‐end connections feature a sharp re‐entrant corner subjected to high stress concentrations, leading to wide cracks under service loads and potential durability issues such as reinforcement corrosion. Effective crack control is therefore essential in the design of new dapped‐end connections. Steel fiber reinforced
Karin Yu   +3 more
wiley   +1 more source

Anchorage performance of different punching shear reinforcement elements in cracked concrete

open access: yesStructural Concrete, EarlyView.
Abstract Extensive research has been conducted on the bond and anchorage behavior of reinforcement elements in concrete. While many experimental studies have focused on uncracked concrete, the anchorage performance in the presence of cracks remains insufficiently understood.
Niklas Mueller   +3 more
wiley   +1 more source

Optimizing the embodied carbon of the product stage of reinforced concrete columns

open access: yesStructural Concrete, EarlyView.
Abstract The construction sector faces urgent sustainability challenges. This study quantifies the potential for reducing embodied carbon in reinforced concrete columns by optimizing concrete strength and reinforcement ratios. The interplay between concrete compressive strength (20–90 MPa), reinforcement percentages (0.2%–2.0%), and embodied carbon ...
Robine Calixte   +2 more
wiley   +1 more source

Experimental and numerical investigation on the flexural response of GFRP‐reinforced SFRC beams

open access: yesStructural Concrete, EarlyView.
Abstract In order to address the challenges related to the deformability and ductility of concrete beams reinforced with fiber reinforced polymer (FRP) bars, an alternative solution involving steel fiber reinforced concrete (SFRC) has been proposed. In the present study, a total of seven beams—including one steel‐reinforced reference beam and six glass
İsmet Vapur   +2 more
wiley   +1 more source

Three‐parameter kinematic theory for shear assessment of reinforced concrete short columns

open access: yesStructural Concrete, EarlyView.
Abstract This work presents a rational kinematics‐based model for assessing the shear capacity of rectangular reinforced concrete short columns. Due to their high stiffness and brittleness, short columns are particularly vulnerable to seismic forces, often exhibiting critical failures.
Daniele Arcuri   +2 more
wiley   +1 more source

Testing and modeling reinforced 3D concrete printing

open access: yesStructural Concrete, EarlyView.
Abstract 3D Concrete Printing (3DCP) provides several advantages, including construction productivity and sustainability, although the presence of cold joints reduces structural performance, particularly in zones subjected to tensile stresses. In addition, it is difficult to reinforce 3DCP structures with conventional steel rebars, generally used to ...
Haruto Tasaki   +7 more
wiley   +1 more source

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