Results 81 to 90 of about 1,530,362 (245)

The search for sustainable parameters for steel-reinforced concrete section of a bridge superstructure

open access: yesMATEC Web of Conferences, 2018
The article contains the description of an efficient lightweight steel-reinforced concrete bridge superstructure, which includes metal blocks with a box-like section and reinforced concrete efficient roadway slab.
Krul Yuriy, Kaplin Roman
doaj   +1 more source

Structural capacity of precast concrete walls with openings: A parametric study on connection types and reinforcement ratios

open access: yesStructural Concrete, EarlyView.
Abstract The structural role of precast concrete walls with openings is often overlooked in design practice due to concerns about reduced stiffness, stress concentration, cracking around openings, and potential unexpected failure modes under seismic loading.
Gonçalo Marreneca   +2 more
wiley   +1 more source

Sensitivity study on accuracy and relevant parameters in numerical modeling of internal tendon breaks

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the numerical modeling of internal tendon breaks in prestressed concrete structures and evaluates the key parameters affecting accuracy. A combined approach is followed, involving global sensitivity analysis via the Elementary Effects Method and subsequent model calibration using experimental data from distributed fiber‐
Aeneas Paul, David Sanio, Peter Mark
wiley   +1 more source

Investigation of digitally produced, interlocking concrete blocks for a modular slab construction [PDF]

open access: yes
3D concrete printing has the potential to improve the cost, material efficiency and construction time. Combining the advantages of 3D concrete printing with modular construction enables the principle of topological interlocking of three-dimensional (non ...
Mechtcherine, Viktor   +3 more
core   +1 more source

Axial behaviour of precast concrete panels with hollow composite reinforcing systems

open access: yes, 2021
This study investigated the axial behaviour of precast concrete panels with hollow composite reinforcing systems (CRSs). These systems were provided to create voids, reduce the concrete and the self-weight of the panels.
Al-Fakher, Usama   +6 more
core   +1 more source

Seismic Fragility Analysis of Hollow Concrete Block Infilled Reinforced Concrete Buildings

open access: yesInternational Research Journal of Innovations in Engineering and Technology, 2022
Masonry infills are usually treated as nonstructural elements in buildings, and their interaction with the bounding frame is often ignored in analysis and design of reinforced concrete structures. The main aim of this study is to develop a seismic fragility curves showing the probability of exceeding a damage limit state for a given structure type ...
openaire   +1 more source

Deformation and strength of grouted sleeve connectors in pre‐fabricated concrete structures: Mechanisms and analytical modeling

open access: yesStructural Concrete, EarlyView.
Abstract Grouted sleeve connectors (GSCs) are widely used in precast/prefabricated concrete structures. To ensure force transfer, connectors are often overdesigned in length. This practice has an unintended consequence of reducing the plastic deformation capacity of the connection region and hence the displacement ductility of the precast structure as ...
Hongning Ye, Yong Lu
wiley   +1 more source

Shear behaviour of hollow precast concrete-composite structures

open access: yes, 2021
Hollow core concrete-panels are prone to shear failure due to collapse of the voids. In this study, the shear behaviour of hollow precast concretecomposite structures (HPCCSs) reinforced with steel bars and composite reinforcing system (CRS) were ...
Al-Fakher, Usama   +7 more
core   +1 more source

Vision language models for bridge inspections: A review of applications in image‐based damage documentation

open access: yesStructural Concrete, EarlyView.
Abstract Automating bridge inspections requires more than detecting individual damage instances. It demands systems capable of describing, contextualizing, and interpreting damage in an inspection‐relevant manner. Conventional computer vision approaches, such as object detection and segmentation, primarily address visual recognition tasks and are ...
Rona Firdes Çelik   +2 more
wiley   +1 more source

Thermal transmittance evaluation of concrete hollow blocks [PDF]

open access: yes, 2016
Papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.Buildings are worldwide responsible for a paramount consumption of energy. Inside them, electrical power is
Santos, G.H., Fogiatto, M.A., Mendes, N.
core   +1 more source

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