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Dissertations / Theses on the topic 'Square column'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Casselgren, Carl Johan, and Roland Häggkvist. "Completing partial Latin squares with one filled row, column and symbol." Linköpings universitet, Matematik och tillämpad matematik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92689.

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Let P be an n×n partial Latin square every non-empty cell of which lies in a fixed row r, a fixed column c or contains a fixed symbol s. Assume further that s is the symbol of cell (r,c) in P. We prove that P is completable to a Latin square if n≥8 and n is divisible by 4, or n≤7 and n∉{3,4,5}. Moreover, we present a polynomial algorithm for the completion of such a partial Latin square.

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2

Gelder, David Camenish. "Buckling and Crippling of Square Steel Thin-Walled Tubes Fabricated with Symmetrically-Overlapping U-Channels and Foam." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3346.

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Testing and analysis has been performed on square steel thin-walled tubes fabricated using symmetrically-overlapping U-channels and foam. This research analyzes flange-to-flange attachment, effect of foam in the columns, effect of adhesive stiffness, and influence of steel thickness, as related to the local buckling loads, global buckling loads, and crippling loads. Four 14-foot (4.27 m) foam-filled, thin-walled, galvanized steel columns were manufactured by Novatek, Inc. and tested in axial compression with pinned boundary conditions. For three of the four configurations, the two-piece 4-in.

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3

Maiko, Khumo Gwendoline. "The Isolation and Electrochemical Studies of Flavanoids from Galenia africana and Elytropapus rhinocerotis from the North Western Cape." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5427_1305881229.

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<p>In this study two medicinal plant species, namely Galenia africana and Elytropapus rhinocerotis, the former belonging to the family Aizoceae and the latter belonging to the family Asteraceae, have been investigated and different compounds isolated and characterized. Both species are important plants used in traditional medicine in Africa and particularly in South Africa. Flavanoids are secondary metabolites found in plants. They have a protective function against UV radiation and have a defence against invading illnesses due to their important antioxidant activity. Much of the food we eat a

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4

Zogata, Pavel. "Sportovní hala." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227267.

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In my diploma thesis the proposal is developed as supporting steel structure sports hall with dimensions 45 x 54 m, a maximum height of 15.5 meters,for the area of Znojmo. In a static calculation are designed and assessed the main bearing structural components such as solid panel purlins, spatial lattice truss, bracing and solid panel columns, which together with the truss form create a crosslinks, column bases and anchoring, plus Tribune.The work includes the design documentation consisting of a layout drawing, drawing anchoring and drawing selected details.

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5

Lipien, Wojciech. "Behaviour of square high-strength concrete columns under load reversals." Thesis, University of Ottawa (Canada), 1996. http://hdl.handle.net/10393/9734.

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Strength and deformation characteristics of 10 square confined high-strength concrete columns were investigated. Properties of columns were selected to allow assessment of the importance of confinement parameters for high-strength concrete columns. The specimens were tested under constant axial compression and incrementally increasing lateral deformation reversals, simulating seismic action. The data indicate that high-strength concrete columns can be confined to behave in a ductile manner. The volumetric ratio of confinement reinforcement required for high strength concrete columns is higher

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6

Hardika, Made S. "Seismic resistance of concrete-filled square steel hollow structuralsection beam-columns." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ66151.pdf.

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7

Al-Khafaji, Hayder Lateef. "Experimental Investigation of CFRP Wrapped Square Non-ductile Reinforced Concrete Columns." PDXScholar, 2016. https://pdxscholar.library.pdx.edu/open_access_etds/3374.

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The use of fiber-reinforced polymers (FRP) for retrofitting or strengthening deficient concrete columns noticeably increased in the past few decades. Plenty of research has been conducted on the behavior of FRP-strengthened circular concrete columns, but far less research has dealt with non-circular columns. In the current study, the focus was to investigate the behavior of square columns with low to medium grade concrete and low steel reinforcement that were strengthened using carbon fiber reinforced polymer (CFRP) wrap. In the experimental portion of this investigation, twelve short square r

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8

Iacobucci, Richard D. "Seismic upgrade and repair of square reinforced concrete columns with carbon FRP jackets." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62950.pdf.

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9

Alishahi, Reza. "Behaviour of CFRP Confined Reinforced Concrete Columns with Square Cross Section under Eccentric Compressive Loading." Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/70500.

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10

Göransson, Herman. "Completing partial latin squares with 2 filled rows and 3 filled columns." Thesis, Linköpings universitet, Matematiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-163092.

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The set PLS(a, b; n) is the set of all partial latin squares of order n with a completed rows, b completed columns and all other cells empty. We identify reductions of partial latin squares in PLS(2, 3; n) by using permutations described by filled rows and intersections of filled rows and columns. We find that all partial latin squares in PLS(2, 3;n), where n is sufficiently large, can be completed if such a reduction can be completed. We also show that all partial latin squares in PLS(2, 3; n) where the intersection of filled rows and columns form a latin rectangle have completions for n ≥ 8.

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11

Bystrianská, Kateřina. "Ocelová konstrukce autosalonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392250.

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The diploma thesis deals with the design and assessment of the steel construction of the car showroom in Jihlava. The ground dimensions of the structure are 40,0 x 52,0 m and the height at the highest point is 13,14 m. The supporting structure consists of a truss girder consisting of a set of arches, outer columns and an inner column with a strut. This is a freebase system, the distance of the bindings is 4.0 m. In the framework of the work is elaborated the comparison of two variants, more suitable includes the static calculation of the main supporting parts, including the joints and details.

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12

Oddsdóttir, Hildur Æsa. "Macroscopic Modeling of Metabolic Reaction Networks and Dynamic Identification of Elementary Flux Modes by Column Generation." Doctoral thesis, KTH, Optimeringslära och systemteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172367.

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In this work an intersection between optimization methods and animal cell culture modeling is considered. We present optimization based methods for analyzing and building models of cell culture; models that could be used when designing the environment cells are cultivated in, i.e., medium. Since both the medium and cell line considered are complex, designing a good medium is not straightforward. Developing a model of cell metabolism is a step in facilitating medium design. In order to develop a model of the metabolism the methods presented in this work make use of an underlying metabolic react

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13

Whiting, James Gerald Holland. "Development and validation of a gastroenterology probe capable of measuring the position of the squamo-columnar junction." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=23200.

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The squamo-columnar junction is an important landmark in the upper gastro-oesophageal anatomy, acid reflux occurring above this causes heartburn and may lead to oesophageal cancer if prolonged. Currently no medical device takes into account the position of the squamo-columnar junction despite its importance. The aim of this doctoral work is to develop and validate a device which is capable of monitoring the position of the squamocolumnar junction with respect to simultaneous acid reflux and pressure measurements. Using Hall effect sensors on a custom flexible circuit board, and a magnet attach

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14

Ohlsson, Tommy. "Dynamics of quarks and leptons : theoretical Studies of Baryons and Neutrinos." Doctoral thesis, KTH, Fysik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2991.

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The Standard Model of Elementary Particle Physics (SM) is the present theoryfor the elementary particles and their interactions and is a well-established theorywithin the physics community. The SM is a combination of Quantum Chromodynamics(QCD) and the Glashow{Weinberg{Salam (GWS) electroweak model. QCDis a theory for the strong force, whereas the GWS electroweak model is a theoryfor the weak and electromagnetic forces. This means that the SM describes allfundamental forces in Nature, except for the gravitational force. However, the SMis not a nal theory and some of its problems will be discus

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15

Critchfield, Brian L. "Statistical Methods For Kinetic Modeling Of Fischer Tropsch Synthesis On A Supported Iron Catalyst." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1670.pdf.

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16

Libřický, Zdeněk. "Sportovně relaxační centrum." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372110.

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The final thesis is focused on the design and elaboration of the project documentation of the sports and relaxation center. The proposed building is located in the south-eastern part of the town of Hradec Králové, in a location supposed for buildings and areas of sports and relaxation use. It is a three-storey building with a flat roof and partial basement. The construction system is wall-mounted with a combination of skeleton. The building is based on plain concrete and reinforced concrete foundation footing. The peripheral, supporting and partition walls are designed from ceramic blocks PORO

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17

Svoboda, Jan. "Sportovní centrum Polička." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240241.

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This thesis deals with the design and elaboration process of a project documentation of a sports centre. The designed sports centre building is situated in the southern part of the town of Polička, in the area determined for sports and free time activities complexes and areas. It is a two-floor, non-cellar, flat-roof building. It is based on plain concrete strip foundations and reinforced concrete foundation footing. The bearing, peripheral and partition walls are designed from POROTHERM hollow clay blocks. Reinforced concrete columns are designated in open disposition areas. The ceiling const

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18

Biswas, Samrat. "Seismic Connection for Steel Square Hollow Beam-To-Square Hollow Column Joint." Thesis, 2015. http://ethesis.nitrkl.ac.in/7026/1/Seismic_Biswas_2015.pdf.

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Most of the steel structures in India are made of conventional steel sections (such as angle, channel and beam sections). However, new hollow steel sections (such as square and rectangular hollow sections) are gaining popularity in recent steel constructions due to a number of advantages such as its higher strength to weight ratio, better fire resistance properties, higher radius of gyration, lesser surface area, etc. This type of hollow sections can save cost up to 30 to 50% over the conventional steel sections (Tata Steel brochure, 2012). But unlike the conventional steel sections these holl

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19

Hui-min, Zeng, and 曾惠敏. "An Optimal Algorithm for Column–Row Searching on Square Matrix." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/97450664548206626282.

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碩士<br>國立新竹教育大學<br>人資處數學教育碩士班<br>98<br>Forest fire often causes great damage. In order to diminish the loss by the fire, this paper simulates the situation of forest fire, and attempts to design optimal fire extinguishing task scheduling. We regard the disaster area as an n×n square matrix. A helicopter is arranged to sprinkle fire-extinguishing chemicals either through a line or a row. It takes one unit of time to deal with a line or a row. Each unit requires only one action. Each unit can be totally put out the fire. If we fail to put out the fire within the urgent time aij, we will lose

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20

Lam, Dennis, and C. A. Williams. "Experimental study on concrete filled square hollow sections." 2004. http://hdl.handle.net/10454/5653.

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A series of tests was performed to consider the behaviour of short composite columns under axial compressive loading, covering a range of S275 and S355 grade steel square hollow section filled with normal and high strength concrete. The interaction between the steel and the concrete component is considered and the results show that concrete shrinkage has an effect on the axial strength of the column. Comparisons between Eurocode 4, ACI-318 and the Australian Standards with the findings of this research were made. Result showed the equation used by the ACI-318 and the proposed Australian Standa

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21

Chen, Yan-Bang, and 陳彥邦. "Buckling Stress of Thin Square Column Under Axial Compression by Finite Element Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/84133366150140102867.

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碩士<br>國立中興大學<br>土木工程學系所<br>100<br>The main purpose of this paper is to explore the buckling deformation patterns and the buckling stress of the thin square column subject toaxial force. Using three-dimentional elastic stability variational principle derived three-dimentional finite element model of elastic stability analysis. The analysis results of buckling deformation and stress is considered column fixed at both ends boundary conditions, differ length L, two sides of rectangle H and the thickness t of the thin square column. The regression formula of buckling stress is established by consid

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22

Lee, Yu-Hsun, and 李昱勳. "Confined Concrete Stress-Strain Model for New RC Square Column with High Strength of Lateral Reinforcement." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/94224549811747890017.

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碩士<br>國立交通大學<br>土木工程系所<br>104<br>Column members placed below high-rise constructions usually bear relatively high vertical loads. The application of high-strength concrete offers several advantages, such as reducing sizes of cross-section and material usage, increasing interior space, and minimizing production costs. However, there are significant differences in mechanics between high-strength concrete material and normal concrete in terms of their characteristics of materials. One of the examples is that high-strength concrete demonstrates brittle fracture after destruction. Hence, the origin

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23

Yang, Shih-Hao, and 楊世豪. "Confined Concrete Stress-Strain Model for New RC Square Column with Normal Strength of Lateral Reinforcement." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/78257279520688011000.

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碩士<br>國立交通大學<br>土木工程系所<br>104<br>Nowadays, high-rise buildings have gradually become a new trend in metropolitan areas. In light of the fact that column members placed below high-rise constructions bear relatively high vertical loads, the application of New RC with its high strength as well as the design without expanding cross-section of column members not only reduce material usage and costs but also increase interior space in a building. Currently, national studies related to New RC was conducted on the behavior of element levels, and little attention has been given to investigation into th

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24

Lam, Dennis, Xianghe Dai, L.-H. Han, Q.-X. Ren, and W. Li. "Behaviour of inclined, tapered and STS square CFST stub columns subjected to axial load." 2012. http://hdl.handle.net/10454/5918.

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This paper describes the finite element method using ABAQUS to model the axial compressive behaviour of inclined, tapered and straight-tapered-straight (STS) concrete filled steel tubular stub (CFST) columns with square hollow sections. The accuracy of the numerical model was verified by comparing the numerical predictions with experimental study of the 200×200×3.75 RHS filled with C60 concrete with inclined angle of 0-9° and tapered angle of 0-4°. The results show that the compressive behaviours, load vs. strain relationship and failure mode predicted by the numerical simulations were agreeab

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25

Garcia, Inês Marques da Silva. "Comportamento ao fogo de colunas tubulares quadradas em aço preenchidas com betão." Master's thesis, 2013. http://hdl.handle.net/10316/38513.

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Dissertação de Mestrado Integrado em Engenharia Civil apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>A utilização de colunas tubulares preenchidas com betão apresenta inúmeras vantagens quer do ponto de vista estrutural, devido à sua elevada robustez, ductilidade e resistência ao fogo, quer do ponto de vista arquitectónico. Por esse motivo, a sua aplicação tem-se vindo a generalizar nos últimos tempos. Apesar das várias vantagens que o uso deste tipo de elementos apresenta, existe ainda uma escassez de resultados experimentais que permitam uma caracterização fie

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26

Wang, Weiguo. "Modelling the dynamic collapse of square aluminium columns." 2004. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=81174&T=F.

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27

SHI, HONG-JUN, and 石宏鈞. "Approximate fast designof square columns subject to biaxial bending." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/99038596132917342916.

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28

YANG, CHIN, and 楊勤. "Mechanics Study on Square Concrete Columns Confined by FRP Material." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/30275846092390366795.

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碩士<br>國立臺灣大學<br>工程科學與海洋工程學系<br>92<br>ABSTRACT The purpose of this thesis is to understand the following mechanical properties by Finite Element Analysis method：stress-strain relationships, elements stresses distribution fields and effects of designing parameters (fiber-wrapped layers, corner radius) in static axial loading test. However, physic, failure and 「fiber-concrete」 coupling behavior can be observed by experiment, which helps us checking the exactness and reality of numerical modeling. Refer to experiment, changing confinement layers and corner radius in fixed pro

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29

Robalino, Pablo José. "Shear performance of reinforced lightweight concrete square columns in seismic regions." 2006. http://www.lib.ncsu.edu/theses/available/etd-08172006-154126/unrestricted/etd.pdf.

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30

Chang, Wen-Chien, and 常文騫. "Behavior of RC Square Columns with Diaphragm under Eccentric Axial Compression." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/09498754862705288055.

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碩士<br>國立成功大學<br>建築(工程)學系<br>86<br>When RC building is subjected to horizontal earthquake loading, if a column doesn''t have enough strength of moment- resistance , the plastic hinge will occur on its both ends .Besides , it will elongate the vibration period and even make the structure unstable as the amount of plastic hinge is too large. In order to improve this problem,a column with diaphram on both sides can be used. In this thesis, the behavior of RC columns with diaphram under eccentri

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31

Lam, D., X. H. Dai, L. H. Han, Q. X. Ren, and W. Li. "Behaviour of inclined, tapered and STS square CFST stub columns subjected to axial load." 2012. http://hdl.handle.net/10454/6060.

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32

Jesus, Mariana Cirila Sousa. "Modelação do comportamento de colunas de betão armado confinadas com mantas de GFRP: proposta de modelo de dimensionamento." Master's thesis, 2017. http://hdl.handle.net/10400.13/1773.

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O conﬁnamento de elementos estruturais de betão armado permite um aumento signi ﬁcativo da sua resistência e ductilidade, nomeadamente em colunas. Por conseguinte, o nu´mero de trabalhos acerca do conﬁnamento com recurso a novos materiais aumen tou signiﬁcativamente nas últimas décadas, entre os quais se destacam os pol´ımeros refor¸cados com ﬁbras (FRP). As propriedades apresentadas por esses materiais, nome adamente os elevados mo´dulo de elasticidade, extensa˜o u´ltima, resistˆencia a` corros˜ao, bem como o baixo peso pro´prio, a moldabilidade, a facilidade de aplica¸ca˜o e o baixo c

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