Results 21 to 30 of about 147 (134)

A Study on Castellated Beams with and Without Stiffeners

open access: yesInternational Journal of Innovative Research in Engineering and Management, 2020
The use of castellated beams in many types of constructions is quickly gaining popularity. This is a result of the section's enhanced depth without adding weight, excellent strength-to-weight ratio, low maintenance requirements, and low cost of painting.
G. Ganesh Naidu   +4 more
openaire   +1 more source

Lateral Distortional Buckling Resistance Predictions of Composite Alveolar Beams: A Review

open access: yesBuildings, 2023
Few studies have investigated the structural behavior of steel-concrete composite alveolar beams in hogging bending regions. Their resistance can be reached by lateral distortional buckling (LDB), coupling LDB and local failure modes, or limit states of ...
Vinicius Moura de Oliveira   +4 more
doaj   +1 more source

Behavior of Castellated Beams with and Without Stiffeners

open access: yesInternational Journal of Innovative Research in Computer Science and Technology, 2020
Castellated beam applications for diverse buildings are quickly gaining popularity. This is a result of the section's enhanced depth without adding weight, excellent strength-to-weight ratio, low maintenance requirements, and low cost of painting. Increased vertical bending stiffness, ease of service provision, and appealing appearance are the main ...
Ch Sandeep Reddy   +4 more
openaire   +1 more source

Influence of web stiffeners in the bearing capacity of steel castellated beams subjected to failure by web post instability

open access: yesRevista Ingeniería de Construcción, 2017
This work presents a numeric study using the Finite Element Method for castellated beams manufactured from Brazilian steel rolled I-sections, which collapse by web post buckling.
W. Vieira   +3 more
doaj   +6 more sources

Numerical analysis on stress and displacement of tapered cantilever castellated steel beam with circular openings

open access: yesMATEC Web of Conferences, 2018
Castellated steel beams are made from normal steel beams cut into half with certain pattern and re-jointed to increase its height. This action results in many shapes of openings in its web, one of them being circular.
Ilham Maulana Taufiq   +4 more
doaj   +1 more source

Influence of water-absorbent polymer balls on the structural performance of reinforced concrete beam: An experimental investigation

open access: yesJournal of the Mechanical Behavior of Materials, 2022
This research investigated the influence of water-absorbent polymer balls (WAPB) on reinforced concrete beams’ structural behavior experimentally. Four self-compacted reinforced concrete beams of identical geometric layouts 150 mm × 200 mm × 1,500 mm ...
Hussen Nibras Farooq   +1 more
doaj   +1 more source

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

open access: yesAdvanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi   +14 more
wiley   +1 more source

Web rotational stiffness of continuous steel-concrete composite castellated beams

open access: yesFracture and Structural Integrity, 2019
Continuous composite beams can present a global instability known as lateral distortional buckling (LDB). The design code EN 1994-1-1:2004 provides a procedure for the verification of this ultimate limit state, in which the resistant bending moment is ...
Carla Cristiane Silva   +4 more
doaj   +3 more sources

Investigation of ANN Architecture for Predicting Load-Carrying Capacity of Castellated Steel Beams

open access: yesComplexity, 2021
Castellated steel beams (CSB) are an attractive option for the steel construction industry thanks to outstanding advantages, such as the ability to exceed large span, lightweight, and allowing flexible arrangement of the technical pipes through beams. In
Thuy-Anh Nguyen   +2 more
doaj   +1 more source

Revealing the Nanoscale Morphology Changes of Polymer Electrolyte Membrane Fuel Cell Catalyst Layers due to Conditioning

open access: yesAdvanced Science, EarlyView.
We apply ex situ and in situ scanning transmission X‐ray microscopy to reveal the structural degradation of polymer electrolyte membrane fuel cell catalyst layers due to conditioning and thermal heating of the catalyst coated membrane. We observe a redistribution of the ionomer and carbon‐black in the catalyst layer, as well as nanoscale membrane ...
Spencer Lytle   +4 more
wiley   +1 more source

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