Results 21 to 30 of about 2,566,141 (344)

Safety of Reinforced Concrete Columns: Effect of Initial Imperfections and Material Deterioration under Emergency Actions

open access: yesBuildings, 2023
The effect of (1) initial imperfections and (2) material degradation of reinforced concrete columns on their safety in emergency situations was investigated. The research was limited to low- and medium-flexibility columns.
Anatoly Victorovich Alekseytsev   +1 more
doaj   +1 more source

COLUMN TESSELLATIONS

open access: yesImage Analysis & Stereology, 2015
A new class of non facet-to-facet random tessellations in three-dimensional space is introduced -- the so-called column tessellations. The spatial construction is based on a stationary planar tessellation; each cell of the spatial tessellation is a prism whose base facet is  congruent to a cell of the planar tessellation.
Cowan, Richard   +2 more
openaire   +5 more sources

Roman wall paintings from «Caesaraugusta» (Zaragoza): a workshop in the middle Ebro valley

open access: yesZephyrus, 2017
The paper presents a set of fragments of Roman paintings. The fragments of Roman paintings that we present come from the excavation carried out in the street Dr. Palomar n.º 4.
Carmen GUIRAL PELEGRÍN
doaj   +1 more source

Strengthening of Low-Strength Concrete Columns with Fibre Reinforced Polymers. Full-Scale Tests

open access: yesInfrastructures, 2020
Confinement of columns with externally bonded fibre reinforced polymers (FRP) sheets is an easy and effective way of enhancing the load carrying and strain capacity of reinforced concrete (RC) columns.
Sonia Martínez   +7 more
doaj   +1 more source

Innovative strengthening of RC columns using a layer of a fibre reinforced concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
Reinforced concrete structures that are influenced by degradation, overloading, the thawing and freezing cycles, abrasive damage and corrosion of reinforcement, should be repaired or strengthened. Each of those mentioned situations lead to decreasing the
Peter Koteš   +2 more
doaj   +1 more source

Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
The decks of oil-extracting  platforms could be damaged by great wave impact loads under harsh ocean conditions. Our understanding of the pressure distribution characteristics under the deck, especially those influenced by columns, is incomplete.
Gangjun Zhai   +5 more
doaj   +1 more source

Residual strength of reinforced concrete stub columns subject to moderate temperatures

open access: yesRevista IBRACON de Estruturas e Materiais, 2021
: This work aims to evaluate the residual strength of reinforced concrete stub columns subjected to moderate temperatures. To accomplish this task, an experimental program was carried out including compression tests on plain concrete specimens exposed to
Eduardo Henrique Barros Lima   +1 more
doaj   +1 more source

Faster gas chromatography and its utilization in brewing. Part 1. - Theoretical and practical aspects.

open access: yesKvasný průmysl, 2009
The interest in analytical laboratories is driven primarily by the desire to higher laboratory throughput, better utilization of high-cost equipment and to reduce the time required to get results. As one of answers to these requirements the attention was
Tomáš HORÁK   +6 more
doaj   +1 more source

Behavior of large-scale rectangular columns confined with FRP composites [PDF]

open access: yes, 2010
This paper focuses on axially loaded, large-scale rectangular RC columns confined with fiber-reinforced polymer (FRP) wrapping. Experimental tests are conducted to obtain the stress-strain response and ultimate load for three field-size columns having ...
Toutanji, H   +3 more
core   +2 more sources

Flexual buckling of structural glass columns. Initial geometrical imperfection as a base for Monte Carlo simulation [PDF]

open access: yes, 2018
In this paper Monte Carlo simulations of structural glass columns are presented. The simulation was performed according to the analytical second order theory of compressed elastic rods.
Melcher, Jindřich, Pešek, Ondřej
core   +1 more source

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