Results 111 to 120 of about 3,600 (262)

CONCRETE CREEP THEORY MODELS AND THEIR FINITE-ELEMENT IMPLEMENTATION

open access: yesAdvanced Engineering Research, 2012
The finite-element method for the plane problem solution of the concrete creep theory with regard to aging is developed. The expressions based on the formulas for creep values proposed by N. K. Arutyunyan and S. V.
Petr Pavlovich Gaydzhurov   +1 more
doaj  

Mechanics‐based model for cold joints in reinforced concrete members

open access: yesStructural Concrete, EarlyView.
Abstract This study introduces a mechanics‐based numerical model to characterize the behavior of cold joints in reinforced concrete members subjected to monotonic loading. The model incorporates mechanisms such as interface slip and opening, aggregate interlock, clamping force, and dowel action of the reinforcing bars crossing the interface.
Brandon Li   +3 more
wiley   +1 more source

Pre‐failure behavior of continuous post‐tensioned and post‐grouted beam in case of tendon failure

open access: yesStructural Concrete, EarlyView.
Abstract Grouted tendons are a common solution for long‐span bridge structures. The grout provides bond and corrosion protection for prestressing steel. However, if the grouting is defective, corrosion of the prestressing steel may initiate and eventually lead to tendon failure.
Olli Asp   +2 more
wiley   +1 more source

Optimal structural design method for reinforced concrete column in buildings with high floor heights using a genetic algorithm

open access: yesStructural Concrete, EarlyView.
Abstract Globally, there is a growing trend toward taller, larger, and more structurally diverse buildings that require expansive interior spaces. Rapid technological advancements have surged the demand for data centers, while the expansion of e‐commerce has increased logistics volumes, driving the need for large‐scale warehouses.
Han Yong Lee   +2 more
wiley   +1 more source

A method for determining the performance of formulas for calculating the crack width and spacing in reinforced concrete elements

open access: yesStructural Concrete, EarlyView.
Abstract Numerous studies have been conducted to determine the performance of formulas for calculating crack width and spacing in reinforced concrete structures. Generally, these studies pay limited attention to the application areas of those formulas and how to compare different representations of the crack width and spacing.
Anton van der Esch   +2 more
wiley   +1 more source

Rotation capacity of continuous reinforced concrete slab strips revisited

open access: yesStructural Concrete, EarlyView.
Abstract Rotation capacity is a key characteristic of statically indeterminate reinforced concrete structures, as it (i) enables bending moment redistributions, whether intentionally introduced through optimized reinforcement layouts or arising from unforeseen self‐equilibrated stress states, and (ii) promotes large rotations at failure load, thereby ...
Nathalie Reckinger   +2 more
wiley   +1 more source

The challenges of GFRP RC beam design for limit states

open access: yesStructural Concrete, EarlyView.
Abstract Glass fiber reinforced polymer (GFRP) bars are used ever more frequently in concrete construction due to their non‐corrosive and anti‐magnetic properties. Their research over the past decades focused on fundamental questions, such as the design aspects of beams under flexural loads.
Szabolcs Szinvai, Tamás Kovács
wiley   +1 more source

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

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