Results 21 to 30 of about 139 (118)

Cost Optimization of Steel-concrete Composite Floor Systems with Castellated Steel Beams

Periodica Polytechnica Civil Engineering, 2020
Performance of cost optimization program of composite steel deck-slabs (DS) and supporting castellated beams (CB) consisting of interior beams, edge beams and girders is proposed in this paper. The program applies the vibrating particle system (VPS) meta-heuristic algorithm, which imitates the free vibration of ideal one-story frame structures with ...
Ali Kaveh, Amir Fakoor
openaire   +2 more sources

An investigation on the seismic behavior of castellated beams under explosion loads effect

Environment Conservation Journal, 2015
Due to the widespread use of ceilings with T-shaped beams as well as because of economic problems and the lack of sufficient variation of rolled profiles, applying castellated beams in buildings with steel structure has become quite common.
Hossein Khosravi, Mohsen Rasouli, Mohsen Khosravi, S. Shoaib Mousavi   +3 more
doaj   +1 more source

Numerical Study of Composite Concrete Castellated Double Channel Beams with Strengthening Techniques

Journal of Engineering
Current numerical research was devoted to investigating the effect of castellated steel beams without and with strengthening. The composite concrete asymmetrical double hot rolled steel channels bolted back to back to obtain a built-up I-shape form are ...
Nihad Yaseen Abbas, Ahmad Jabbar Hussain Alshimmeri   +1 more
doaj   +1 more source

Load carrying capacity of castellated I-beam in the elastoplastic formulation problem

MATEC Web of Conferences, 2018
Developed a method for calculating the load carrying capacity of castellated I-beam with ideal elastoplastic material model in ANSYS Mechanical. The method verified in the test problem of bending a rectangular beam.
Goryachevskiy Oleg
doaj   +1 more source

Experimental study of the behaviour and failure modes of tapered castellated steel beams

Open Engineering, 2022
AbstractThis article discusses the experimental testing of tapered castellated beams (TCBs) under mid-span concentrated load. These beams are created by cutting the webs of standard I-sections in a particular zigzag pattern and rejoining the two parts by placing variable expansion plates between web posts and welding them together. Generally, the depth
Al-Thabhawee Hayder Wafi, Al-Kannoon Muslim Abdul-Ameer   +1 more
openaire   +2 more sources

Darier disease—A review highlighting new insights from the Darier Disease International Task Force

Journal of the European Academy of Dermatology and Venereology, EarlyView.
This review provides a global, clinically focused overview of DD, detailing cutaneous and extracutaneous manifestations, disease classification and severity scoring. It emphasizes early recognition, multidisciplinary management and practical guidance for dermatologists to apply evidence‐based care in diverse skin phototypes. Abstract Darier disease (DD)
Sofia Labbouz, Alain Hovnanian, Grace Xiong, Dedee Frances Murrell, Simon M. Mueller, Khaled Ezzedine, Nessa Aghazadeh Mohandesi, Ahmed Salem Aldhaheri, Nissim Asayag, Eulalia Baselga, Chen Nadler, Keith Choate, Chia‐Yu Chu, John Robert Edminister, Emmanuella Guenova, Melis Gönülal, Antoni Gostynski, Ankan Gupta, Lalit Kumar Gupta, Juliette Mazereeuw‐Hautier, Wolfram Hoetzenecker, Peter Itin, Marek Jankowski, Akiharu Kubo, Haur Yueh Lee, Julia Scott Lehman, Anfisa Lepekhova, Márta Medvecz, Jemima E. Mellerio, Verena Moosbrugger‐Martinz, Amy S. Paller, Dóra Plázár, Amadeu José Rodrigues Queiróz, Josep Riera‐Monroig, Ralph Rosa, Matthias Schmuth, Maella Severino Freire, Itzhak Shabat, Jonathan Shapiro, Cory L. Simpson, Diego Soto‐García, Alexander J. Stratigos, Gianluca Abel Tadini, Takuya Takeichi, Kaushal K. Verma, Jakob D. Wikström, Alexander Zink, Michael Ziv, Alexander Navarini, Roni Pircha Dodiuk‐Gad   +49 more
wiley   +1 more source

THE FLEXURAL BEHAVIOR OF COMPOSITE HYBRID CASTELLATED I-BEAM

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
This study examines the flexural behavior of six hybrid composite castellated beams with varying castellated degrees (25%, 33.8%, and 50%). Hybrid beams are formed by utilizing plates with different strengths in the compression and tension zones.
kawthar hussien, Najla'a H. Al-Shareef
doaj   +1 more source

Molecular phylogenetics of Thymelaeaceae‐Thymelaeoideae: Resolving the paraphyly of Gnidia and a new monophyletic generic classification for the group

TAXON, Volume 75, Issue 4, August 2026.
Abstract Earlier phylogenetic analyses of the family Thymelaeaceae using combined plastid (matK, rbcL, rps16, trnL‐F) and nuclear (ITS) regions showed that the African‐Malagasy genus Gnidia was extensively polyphyletic in relation to the southern African genera Lachnaea, Passerina and Struthiola, as well as to other Southern Hemisphere genera such as ...
Oluwayemisi D. Olaniyan, James S. Boatwright, Anthony R. Magee, John C. Manning, Michelle van der Bank   +4 more
wiley   +1 more source

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

Revista 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, G. Verissimo, J. L. Rangel, J. Lopes   +3 more
doaj   +6 more sources

Molecular investigation of the phylogenetic placement of Kartalinia and a revision of Bituminaria (Fabaceae: Psoraleeae)

TAXON, Volume 75, Issue 4, August 2026.
Abstract The genus Kartalinia was described to accommodate a single, obscure species, Psoralea acaulis, based on its unique morphology and karyology. No concerted molecular phylogenetic studies were available for this species at the time, and therefore its phylogenetic position was uncertain.
Brian Du Preez, Salvatore Brullo, Charles H. Stirton, Salvatore Cambria, A. Muthama Muasya   +4 more
wiley   +1 more source