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Dissertations / Theses on the topic 'Hollow structural section'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Kosteski, Nikola. "Branch plate-to-rectangular hollow structural section connections." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ63606.pdf.

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2

Law, Kwan Ho. "Instabilities in structural steel elliptical hollow section members." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6205.

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Elliptical hollow sections (EHS) have been recently added to the family of hollow steel sections available to the construction industry. Their merits include different flexural rigidities about the two principal axes offering efficient bending resistance about the major axis and an aesthetically pleasant appearance. A number of recent practical applications have emerged, which are outlined in this thesis. Previous research on elliptical hollow sections has mainly focused on the cross-section level with a set of design rules for cross-section classification and shear resistance being proposed.

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3

Philiastides, Antony. "Fully overlapped rolled hollow section welded joints in trusses." Thesis, University of Nottingham, 1988. http://eprints.nottingham.ac.uk/12416/.

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The designer of lattice trusses has been traditionally encouraged to avoid extra joint bending moments by ensuring 'noding' of member centre lines. This can however cause problems in the design of RHS trusses with small (economical) branch members by causing large gaps at joints with undesirable flexibility for slender chord walls. 100% overlap joints overcome this problem while still maintaining economic single cut branch ends. The research programme set out first to highlight the difference in behaviour of trusses with large gap noding and completely overlapping joints. Two similar trusses -

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4

Kelly, Robert. "The influence of member orientation on hollow section joint strength." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/13287/.

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The influence of the member orientation on the strength of joints formed with square hollow sections is examined. The bird beak joint system is a relatively new truss arrangement for square hollow sections, where the chord and the brace have each been rotated by 45° about their own centreline axes. Based on previous experimental testing it has been suggested that this joint system leads to a stronger joint arrangement. Finite element analysis has been used to study the strength and behaviour of such bird beak joints and to compare them to similar joints in CHS and the traditional RHS configura

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5

Kong, Hye-Eun. "Design of One-Story Hollow Structural Section (HSS) Columns Subjected to Large Seismic Drift." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/94024.

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During an earthquake, columns in a one-story building must support vertical gravity loads while undergoing large lateral drifts associated with deflections of the vertical seismic force resisting system and deflections of the flexible roof diaphragm. Analyzing the behavior of these gravity columns is complex since not only is there an interaction between compression and bending, but also the boundary conditions are not perfectly pinned or fixed. In this research, the behavior of steel columns that are square hollow structural sections (HSS) is investigated for stability using three design me

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6

Balarupan, Manuvidhya. "Structural behaviour and design of cold-formed steel hollow section columns under simulated fire conditions." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/91533/1/Manuvidhya_Balarupan_Thesis.pdf.

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This thesis presented a comprehensive study on the fire performance of load-bearing high-strength and cold-formed steel hollow section columns using experimental and numerical investigations. Accurate design tools have been developed to predict the ambient and elevated temperature structural capacities and fire resistance ratings of these columns. These developed design methods can be used to decide where bare steel columns can be used, and to design any required fire protection. Overall this research has significantly improved the knowledge and understanding of the structural fire performance

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7

Perera, Nilakshi. "Structural behaviour and design of innovative hollow flange steel plate grinders." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/123310/1/Liyanage%20Nilakshi%20Piyahasi_Perera_Thesis.pdf.

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This thesis proposes a new Hollow Flange Steel Plate Girder (HFSPG) by welding industrially available cold-formed Rectangular Hollow Sections (RHS) to a web plate for use in long span construction. Design procedures presented in the national and international design guidelines were reviewed and suitable improvements were made to accurately predict the structural behaviour and capacities of HFSPGs by undertaking detailed experimental and numerical studies into their unique structural behaviour. Local buckling/yielding, global buckling and local-global interaction failures were all considered in

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8

Tao, Yunxiang. "Advanced numerical analysis and fire testing of cold-formed steel hollow section stud walls." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/226716/1/Yunxiang_Tao_Thesis.pdf.

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This research investigated the behaviour of light gauge steel frame walls made of cold-formed steel hollow section studs under both ambient and fire conditions using full scale experimental and advanced numerical studies. It developed and improved new structural and fire design rules for hollow section stud walls that can be included in the Australian steel structures standard. Importantly, it showed that such wall systems have superior fire resistance than conventional wall systems used currently. Overall, this research has sufficiently improved the knowledge of light steel walls made of holl

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9

Yang, Jie. "Structural behaviour of concrete-filled elliptical column to I-beam connections." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/16022.

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Concrete-filled tubular (CFT) columns have been widely adopted in building structures owing to their superior structural performance, such as enhanced load bearing capacity, compared to hollow tubes. Circular, square and rectangular hollow sections are most commonly used in the past few decades. Elliptical hollow section (EHS) available recently is regarded as a new cross-section for the CFT columns due to its attractive appearance, optional orientation either on major axis or minor axis and improved structural efficiency. The state of the research in terms of elliptical columns, tubular joint

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10

Siahaan, Ropalin. "Structural behaviour and design of rivet fastened rectangular hollow flange channel beams." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/106913/1/Ropalin_Siahaan_Thesis.pdf.

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This thesis presents a study into the structural behaviour and design of the innovative rivet fastened Rectangular Hollow Flange Channel Beams (RHFCB). The RHFCB utilizes the inexpensive self-pierce rivet fastening in its fabrication, providing cost effective structural solutions in floor systems. The first part of the thesis focuses on the section moment capacities of the beams subject to local buckling effects while the second part investigates the member moment capacities of intermediate span beams subject to the unique lateral distortional buckling effects. Each part involves experimental

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11

Anapayan, Tharmarajah. "Flexural behaviour and design of hollow flange steel beams." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/36210/1/Tharmarajah_Anapayan_Thesis.pdf.

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The LiteSteel Beam (LSB) is a new hollow flange channel section developed by OneSteel Australian Tube Mills using a patented Dual Electric Resistance Welding technique. The LSB has a unique geometry consisting of torsionally rigid rectangular hollow flanges and a relatively slender web. It is commonly used as rafters, floor joists and bearers and roof beams in residential, industrial and commercial buildings. It is on average 40% lighter than traditional hot-rolled steel beams of equivalent performance. The LSB flexural members are subjected to a relatively new Lateral Distortional Buckling mo

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12

Jatheeshan, Varathananthan. "Numerical and experimental studies of cold-formed steel floor systems made of hollow flange section joists in fire." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/120145/1/Varathananthan_Jatheeshan_Thesis.pdf.

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The cold-formed steel utilization in buildings has increased globally due to its higher strength to weight ratio, ease of transportation and rapid erection and dismantlement. However, cold-formed steel buildings must be designed with adequate Fire Resistance Ratings (FRR). Hence cold-formed Light gauge Steel Frames (LSF) are assembled using channel sections and lined with fire resistive plasterboards to provide load-bearing wall and floor systems. There is an industry need to develop LSF floor systems with improved FRR. Adding multiple layers of plasterboard to increase the FRR of LSF floor

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13

Kesawan, Sivakumar. "Fire performance and design of light gauge steel frame wall systems made of hollow flange sections." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/120153/1/Kesawan_Sivakumar_Thesis.pdf.

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Load bearing Light Gauge Steel Frame (LSF) wall system is a cold-formed steel structure made of cold-formed steel studs and lined on both sides by gypsum plasterboards. In recent times its use and demand in the building industry has significantly increased due to their advantages such as light weight, acoustic performance, aesthetic quality of finished wall, ease of fabrication and rapid constructability. Fire Resistant Rating (FRR) of these walls is given more attention due to the increasing number and severity of fire related accidents in residential buildings that have caused significant lo

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14

Chan, Tak Ming. "Structural behaviour of elliptical hollow sections." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/11975.

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Elliptical hollow sections (EHS) represent the recent addition to the range of tubular structural products. Their distinct closed nature brings structural efficiency by offering differing flexible rigidities about each of the principal axes as well as high torsional stiffness. It also offers an interesting and unusual smooth streamlined appearance which can be utilised to fulfil contemporary streamlined appearance which can be utilised to fulfil contemporary design visions. The varying radius of curvature around the circumference characterises the distinctive structural behaviour of EHS from o

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15

Zhao, Wen-Bin. "Behaviour and design of cold-formed steel hollow flange sections under axial compression." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16909/1/Wen-Bin_Zhao_Thesis.pdf.

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The use of cold-formed steel structures is increasing rapidly around the world due to the many advances in construction and manufacturing technologies and relevant standards. However, the structural behaviour of these thin-walled steel structures is characterised by a range of buckling modes such as local buckling, distortional buckling or flexural torsional buckling. These buckling problems generally lead to severe reduction and complicated calculations of their member strengths. Therefore it is important to eliminate or delay these buckling problems and simplify the strength calculations of

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16

Zhao, Wen-Bin. "Behaviour and design of cold-formed steel hollow flange sections under axial compression." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16909/.

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The use of cold-formed steel structures is increasing rapidly around the world due to the many advances in construction and manufacturing technologies and relevant standards. However, the structural behaviour of these thin-walled steel structures is characterised by a range of buckling modes such as local buckling, distortional buckling or flexural torsional buckling. These buckling problems generally lead to severe reduction and complicated calculations of their member strengths. Therefore it is important to eliminate or delay these buckling problems and simplify the strength calculations of

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17

Ozkan, Istemi Faruk. "Plastic interaction relations for hollow structural steel sections." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6088.

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The first part of this study reports an experimental program consisting of six full-scale tests on pipe sections under load combinations of shearing forces, bending moments, and twisting moments. The experimental results agree very well with the predicted failure loads based on recently developed interaction relations. The experimental program establishes the validity of the analytical techniques used to derive the interaction relations for pipe sections. The verified methodology is extended to derive interaction relations for square hollow structural sections under combinations of normal forc

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18

Barnett, Tobias C. "Assessment of clamping behaviour of a newly developed blind bolt, and an investigation into its performance in the tension region of moment resisting connections using open and hollow sections." Thesis, Nottingham Trent University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366362.

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19

Ozyurt, Emre. "Behaviour of welded tubular structures in fire." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/behaviour-of-welded-tubular-structures-in-fire(15601ab3-8f6c-4e64-ba1a-6201e66e9e16).html.

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This thesis presents the results of a research project to develop methods to carry out fire safety design of welded steel tubular trusses at elevated temperatures due to fire exposure. It deals with three subjects: resistance of welded tubular joints at elevated temperatures, effects of large truss deflection in fire on member design and effects of localised heating. The objectives of the project are achieved through numerical finite element modelling at elevated temperatures using the commercial Finite Element software ABAQUS v6.10-1 (2011). Validation of the simulation model for joints is ba

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20

Rush, David Ian. "Fire performance of unprotected and protected concrete filled steel hollow structural sections." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8298.

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Concrete filled steel hollow structural (CFS) sections are increasingly used to support large compressive loads in buildings, with the concrete infill and the steel tube working together to yield several benefits both at ambient temperature and during a fire. These members are now widely applied in the design of highly optimized multi-storey and high rise buildings where fire resistance ratings of two or more hours may be required. Whilst the response and design of these sections at ambient temperatures is reasonably well understood, their response in fire, and thus their fire resistance desig

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21

Buchanan, Craig. "Testing and design of conventional and novel stainless steel hollow structural sections." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/49208.

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The topic of this thesis is the testing and design of conventionally formed and additive manufactured stainless steel hollow structural sections. Although design codes currently exist for stainless steel hollow structural elements, the provisions are based on limited structural data and therefore require further evaluation for their suitability, and are not intended to apply to additive manufactured elements. Focussing on conventionally formed circular hollow sections (CHS), the existing design provisions have been carefully reappraised based on a dataset of tests and finite element results ge

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22

Gkantou, Michaela. "Response and design of high strength steel structures employing square and rectangular hollow sections." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7522/.

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The application of high strength steels (HSS) in the construction industry can lead to more economic design and profound sustainability benefits. To facilitate their use in modern practice, most international structural design codes have included HSS within their contents. Due to limited test data at the time of publishing, HSS design provisions are largely based on those for mild steel, with some restrictions, due to HSS’s inferior ductility and strain-hardening characteristics. Hence, further investigation on the applicability of such design specifications to HSS is required. To this end, wi

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23

Wheeler, A. T. "The behaviour of bolted moment end plate connections in rectangular hollow sections subjected to flexure." Phd thesis, Department of Civil Engineering, 1998. http://hdl.handle.net/2123/8669.

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24

Öhman, Kristoffer. "The Crocodile Nose Connection : Design and laboratory tests on a novel connection for structural hollow sections." Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-67506.

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The great properties and clear form makes the circular hollow section (CHS) appreciated by architects. When connecting these sections today it is common to use gusset plates. The knifeplate connection where the gusset plate is inserted into a slot made at the end of a circular section, is the most used connection today. This type of connections is not seen as aesthetically pleasingby architects because of its abrupt cut of the CHS. An alternative for the knife-plate connection is the Crocodile nose connection (CN-connection). The benefits of the CN-connection is the absence of the abrupt cut a

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25

Souza, Mauricio Guilherme Quilez. "Automação e integração CAD/CAE no projeto de estruturas metalicas, utilizando perfis tubulares." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257809.

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Orientador: João Alberto Venegas Requena<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-09T16:24:16Z (GMT). No. of bitstreams: 1 Souza_MauricioGuilhermeQuilez_M.pdf: 5444391 bytes, checksum: f64376df9364d46cfcb18e6ba06eff3a (MD5) Previous issue date: 2006<br>Resumo: Este trabalho tem como objetivo o desenvolvimento de códigos de computador que têm a finalidade de automatizar as etapas principais de um projeto de estruturas metálicas através das linguagens AutoLISP e Delphi5. Os proje

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26

Cai, Chao. "Analytical solutions for residual stresses in cold-formed steel circular hollow sections due to cold rolling." Thesis, University of Macau, 2009. http://umaclib3.umac.mo/record=b2148262.

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27

Plačková, Markéta. "Ocelová konstrukce hangáru." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372262.

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This Master´s thesis describes the design and assessment of steel structure of a hangar located in Znojmo. The supporting structure of a hangar is 37,475 m span, 48 m lenght, clear hight at the highest point is 15,5 m. Main construction material is steel, grade S355J2. The supporting structure consist of a truss girders. The distance of each cross link sis 4 m. There is prepared statics calculation of the main load-bearing parts of the structure, including joints and details. The valid standards CSN EN were used in processing of this dissertation.

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Andersson, Sebastian. "Varmformade eller kallformade konstruktionsrör ur ett lönsamhetsperspektiv : Undersökning av ekonomisk differens i valet mellan VKR och KKR." Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-25151.

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I Sverige kan VKR (varmformade konstruktionsrör) vara 15-23 % dyrare än KKR (kallformade konstruktionsrör) av samma tvärsnittsstorlek. Trots detta lägre pris på KKR har det uppskattats att i Svensk stålbyggnation används endast 5 % KKR, av det totala användandet av VKR och KKR. I detta examensarbete har det först undersökts vilka skillnader i egenskaper som finns mellan VKR och KKR. Därefter beräknas prisdifferensen mellan de två profiltyperna när de utsätts för en centrisk tryckkraft under likadana förhållanden. Målet är att ta reda på vilket som är det mest ekonomiskt lönsamma alternative

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29

Nagui, Alexander. "A comparative analysis of the resistance of tubular joints." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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The resistance of tubular joints is conventionally determined by the failure mode approach where strength formulae are often determined in a semi-empirical way. The European standard EN 1993-1-8 is under the revision with the goal to have a new version in 2020. The design equations for hollow section joints in Chapter 7 of EN 1993-1-8, which have been calibrated against available experimental results in the 80’s, are compared with the design formulae in the international standard ISO 14346. In ISO 14346, the design equations have been re-analysed, adopting the results of extensive numerical in

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Matějková, Pavla. "Hangár." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392113.

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Diploma thesis contains a design of steel load-bearing structure of a hangar placed in Brno-Medlánky. The ground dimensions are 40.0×44.0 m, the height of the building is 10.0 m. Two preliminary variants of the design solution were processed; main difference is the shape of the truss girder. Both variants were assessed for a combination of seventeen load cases. The comparison of the variants led to the selection of the final variant, which was assessed in detail. The girder truss in this variant is an arched truss, the height of the truss is 1.5 m, the individual elements are made of square ho

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31

Pereira, Daniel Henrique Fidelis. "Análise do comportamento estrutural de ligações em aço entre viga de seção I e pilar de seção tubular circular." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-11122013-101943/.

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Esta pesquisa consiste de uma investigação acerca do comportamento estrutural de ligações entre viga de seção I e pilar de seção tubular circular em situações de pilar de canto e de pilar solicitado por quatro vigas simultaneamente (pilar central). A associação entre a viga de seção I e o pilar de seção tubular circular remete à análise de ligações com comportamento complexo. A partir da análise numérica, via Método dos Elementos Finitos com os softwares ANSYS® e TrueGrid® foi avaliado o comportamento momento-rotação e parâmetros como resistência, rigidez inicial e ductilidade das ligações. Fo

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Sepúlveda, Bárbara Daniela Giorgini 1986. "Influência das ligações no dimensionamento das estruturas tubulares circulares de aço treliçadas." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258631.

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Orientador: João Alberto Venegas Requena<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-23T22:44:13Z (GMT). No. of bitstreams: 1 Sepulveda_BarbaraDanielaGiorgini_M.pdf: 5435418 bytes, checksum: 5d55af89b27e919b7c819e297b4cf056 (MD5) Previous issue date: 2013<br>Resumo: Este artigo apresenta o estudo da influência das ligações no comportamento das estruturas treliçadas compostas por perfis tubulares de aço. As ligações em treliças de aço são normalmente projetadas para união de barras

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33

Haque, Tarana Haque. "Elliptical Hollow Section T and X Connections." Thesis, 2011. http://hdl.handle.net/1807/30623.

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Elliptical hollow sections (EHS) are the newest steel shape to emerge in the industry, but appropriate design guidance is lacking, being completely absent from Canadian codes and guidelines. Geometric property and compressive resistance tables were established to be potentially added to the Canadian guides. The equivalent RHS method, originally proposed by Zhao and Packer in 2009, was simplified and modified to validate its use for the design of EHS columns and beams. An experimental programme was developed to investigate the behaviour of EHS-to-EHS welded connections. Twelve T and X connectio

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34

Voth, Andrew Peter. "Branch Plate-to-circular Hollow Structural Section Connections." Thesis, 2010. http://hdl.handle.net/1807/26253.

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Although branch plate connections with circular hollow section (CHS) members are simple to fabricate and cost-effective, they are generally very flexible under low load application resulting in the limit states design resistance being governed by an imposed deformation limit. Restricting the ultimate capacity of a branch plate connection by a deformation limit results in the inherent strength of the CHS member being under-utilized, highlighting the need to develop connection stiffening methods. Two methods to stiffen branch plate-to-CHS connections are examined: a through plate connection and

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35

Tayyebi, Kamran. "Behaviour and design of direct-formed hollow structural section members." Thesis, 2021. http://hdl.handle.net/1828/13096.

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In North America, cold-formed square and rectangular hollow sections (collectively referred to as RHS hereinafter) of commonly specified cross-sectional dimensions are produced using either the indirect-forming approach or the direct-forming approach. The indirect-forming approach, as the conventional approach of the two, consists of three steps: (i) roll-forming the coil material progressively into a circular hollow section; (ii) closing the section using electric resistance welding (ERW); and (iii) reshaping the circular section into the final square or rectangular shape. On the other hand,

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Chia-TzuChiang and 江嘉慈. "The research on specifications of circular hollow structural section material." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/s8v373.

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碩士<br>國立成功大學<br>建築學系<br>107<br>Circular hollow structural section (CHS) members are more and more prevalent among major projects, but there is no specification of CHS members in Taiwan. This study aims to derive conclusions about which specification is applicable to Taiwan by collecting information about CHS members and comparing different specifications. Information which had been collected incudes the virtue of CHS members,the manufacture of CHS members,and several specifications of CHS members in different countries. Besides, according to different specifications, this study develops calcul

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Yang, Jie, Therese Sheehan, Xianghe Dai, and Dennis Lam. "Structural behaviour of beam to concrete-filled elliptical steel tubular column connections." 2016. http://hdl.handle.net/10454/8941.

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Yes<br>Elliptical Hollow Sections (EHSs) have been utilized in construction recently because of their visual appearance as well as the potential structural efficiency owing to the presence of the two principle axes. However, little information currently exists for the design of beam to elliptical column connections, which is an essential part of a building structure. Thus, to ensure the safe and economic application of EHSs, a new research project has been initiated. Rotation behaviour of simply bolted beam to concrete-filled elliptical steel column connections was investigated experimentally

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McFadden, Matthew. "Effective Weld Properties for RHS-to-RHS Moment T-connections." Thesis, 2012. http://hdl.handle.net/1807/33446.

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An experimental program was developed to test various unreinforced RHS-to-RHS 90° T-connections subject to branch in-plane bending moment with the objective of determining the effectiveness of the welded joint. Twelve unique test specimens were designed to be weld-critical and the results from the full-scale tests revealed that the current equation for the effective elastic section modulus for in-plane bending, S_ip, given in Table K4.1 of ANSI/AISC 360 (2010) is conservative. A modification to the current requirements that limit the effective width of the transverse weld elements is proposed,

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39

Sheehan, Therese, and T. M. Chan. "Cyclic response of hollow and concrete-filled circular hollow section braces." Thesis, 2014. http://hdl.handle.net/10454/10789.

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yes<br>The behaviour of seismic-resistant buildings relies heavily upon the inclusion of energy dissipating devices. For concentrically-braced frames, this function is accomplished by diagonal bracing members whose performance depends upon both cross-sectional properties and global slenderness. Traditionally preferred rectangular hollow sections are susceptible to local buckling, particularly in cold-formed tubes, owing to the residual stresses from manufacture. This paper explores the response of hollow and concrete-filled circular tubes under cyclic axial loading. The uniformity of the circu

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Lam, Dennis, Xianghe Dai, and N. Jamaluddin. "Structural Behaviour of Concrete filled Elliptical Steel Hollow Sections." 2012. http://hdl.handle.net/10454/5607.

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Lam, Dennis, and N. Testo. "Structural Design of Concrete Filled Steel Elliptical Hollow Sections." 2011. http://hdl.handle.net/10454/5891.

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This paper presents the behaviour and design of axially loaded elliptical steel hollow sections filled with normal and high strength concrete. The experimental investigation was conducted with three nominal wall thickness (4mm, 5mm and 6.3mm) and different infill concrete cube strengths varied from 30 to 100 MPa. The effect of steel tube thickness, concrete strength, and confinement were discussed together with column strengths and load-axial shortening curves were evaluated. The study is limited to cross-section capacity and has not been validated at member level. Comparisons of the tests res

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Yang, H., Dennis Lam, and L. Gardner. "Compressive Behaviour of Concrete-filled Elliptical Hollow Sections." 2009. http://hdl.handle.net/10454/5581.

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Lam, Dennis, and N. Testo. "Structural Design of Concrete Filled Steel Elliptical Hollow Sections." 2008. http://hdl.handle.net/10454/5573.

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This paper presents the behaviour and design of axially loaded elliptical steel hollow sections filled with normal and high strength concrete. The experimental investigation was conducted with three nominal wall thickness (4mm, 5mm and 6.3mm) and different infill concrete cube strengths varied from 30 to 100 MPa. The effect of steel tube thickness, concrete strength, and confinement were discussed together with column strengths and load-axial shortening curves were evaluated. The study is limited to cross-section capacity and has not been validated at member level. Comparisons of the tests res

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Sheehan, T., X. H. Dai, T. M. Chan, and D. Lam. "Structural response of concrete-filled elliptical steel hollow sections under eccentric compression." 2012. http://hdl.handle.net/10454/6186.

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Sheehan, Therese, Xianghe Dai, T. M. Chan, and Dennis Lam. "Structural response of concrete-filled elliptical steel hollow sections under eccentric compression." 2012. http://hdl.handle.net/10454/5916.

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The purpose of this research is to examine the behaviour of elliptical concrete-filled steel tubular stub columns under a combination of axial force and bending moment. Most of the research carried out to date involving concrete-filled steel sections has focussed on circular and rectangular tubes, with each shape exhibiting distinct behaviour. The degree of concrete confinement provided by the hollow section wall has been studied under pure compression but remains ambiguous for combined compressive and bending loads, with no current design provision for this loading combination. To explore the

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Silva, João Diogo da Fonseca. "Study of splice bolted connections in truss steel structures with hollow sections." Master's thesis, 2014. http://hdl.handle.net/10316/38604.

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Dissertação de Mestrado Integrado em Engenharia Civil apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>No desenvolvimento de um projeto de estruturas metálicas é necessário compreender e analisar corretamente a influência que as ligações têm na estrutura. Estas constituem pontos fulcrais na transmissão dos esforços e como tal, condicionam fortemente o comportamento da estrutura. Dada a dimensão das estruturas, estas são seccionadas em módulos de modo a possibilitar um transporte facilitado e económico sendo posteriormente montadas no local pretendido. A junção de

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Ghanbari, Ghazijahani T. "Structural behaviour of thin-walled steel elements with geometric and sectional non-uniformities." Thesis, 2017. https://eprints.utas.edu.au/23788/2/Ghanbari_Ghazijahani_whole_thesis_ex_pub_mat.pdf.

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This PhD program proposes innovative ideas within a comprehensive and yet umbrella definition as indicated through the title. Above all, this thesis provides a comprehensive compendium of experimental results on a variety of aspects of buckling of thin walled steel elements and an invaluable resource of experimental data for the later studies of such structural elements. This thesis experimentally investigates the structural stability of thin-walled steel members with different geometrical and material specifications. For tubular circular members made exclusively from steel, large imperfectio

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Giakoumelis, G., and Dennis Lam. "Axial Capacity of Circular Concrete¿filled Tube Columns." 2004. http://hdl.handle.net/10454/5652.

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no<br>The behaviour of circular concrete-filled steel tubes (CFT) with various concrete strengths under axial load is presented. The effects of steel tube thickness, the bond strength between the concrete and the steel tube, and the confinement of concrete are examined. Measured column strengths are compared with the values predicted by Eurocode 4, Australian Standards and American Codes. 15 specimens were tested with 30, 60 and 100 N/mm2 concrete strength, with a D/t ratio from 22.9 to 30.5. All the columns were 114 mm in diameter and 300 mm in length. The effect due to concrete shrinkage is

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Τζουμανίκα, Γεωργία. "Επιρροή των φαινομένων Ρ-Δ στην ανελαστική απόκριση επίπεδων μεταλλικών πλαισίων με διαφορετικούς νόμους υστερητικής συμπεριφοράς". Thesis, 2013. http://hdl.handle.net/10889/6744.

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Στην παρούσα εργασία πραγματοποιήθηκε παραμετρική μελέτη μεταλλικών καμπτικών επίπεδων πλαισίων με υποστυλώματα τύπου τετραγωνικής κοιλοδοκού (Square Hollow Section, SHS) και δοκών τύπου διπλού ταυ (IPE). Ζητούμενο αποτελούσε η ανάπτυξη εξισώσεων που θα συνδέουν χαρακτηριστικά της ανελαστικής απόκρισης των κατασκευών με την δυνατότητα αντισεισμικού σχεδιασμού σύμφωνα με την μέθοδο των δυνάμεων έχοντας όμως σαν αρχικό στόχο ένα επιθυμητό επίπεδο επιτελεστικότητας σύμφωνα με τον αντισεισμικό σχεδιασμό που βασίζεται στην νεότερη μέθοδο των μετακινήσεων και εκτιμούν πιο σωστά την επιρροή των φαινο

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