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Stress-strain behaviour of cold-worded materials in cold-formed stainless steel sectionsQiu, Pei January 2011 (has links)
University of Macau / Faculty of Science and Technology / Department of Civil and Environmental Engineering
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Investigation of high strength stainless steel prestressing strandsSchuetz, Daniel Philip 10 January 2013 (has links)
Bridges and other coastal structures in Georgia and throughout the Southeast are deteriorating prematurely due to corrosion. Numerous corrosion
initiated failures have occurred in precast prestressed concrete (PSC) piles and reinforced concrete (RC) pile caps, leading to the costly repair and
replacement of either the entire bridge or the affected members. With the Federal Highway Administration's goal of a 100-year bridge service life
and recent legislative action such as the Bridge Life Extension Act, new emphasis has been placed on the development and implementation of new
corrosion mitigation techniques.
This thesis involves the mechanical testing, and proposed future test program of high-strength stainless steel (HSSS) prestressing strand to be used
in prestressed marine bridge piles. The metallurgy for two types of HSSS strand was selected from a previous study of the corrosion resistance,
mechanical properties, and feasibility of 6 candidate HSSS drawn wire samples. Duplex stainless steel (DSS) grades 2205 and 2304 were selected
for production of 7-wire 1/2" diameter prestressing strand. DSS wire rod was drawn, stranded, and heat-treated using the same production methods
and equipment as used for standard of practice, high carbon prestressing strand. The production process was documented to analyze the problems
facing this production method and suggest improvement and optimization.
After production, the strands were subjected to a series of mechanical tests. Tension testing was performed to provide a stress-strain curve for the
strands and related mechanical properties. Wire samples were also taken at varying points in the drawing process to give more information about
the work hardening of the stainless steels. Stress relaxation testing was performed on both strand and wire samples to assess the overall losses and
to provide comparisons between strand and wire test results as well as drawn wires before and after heat-treatment.
An experimental program for future study was designed to assess the HSSS prestressing strand behavior in precast piles. This testing involves
assessment of pile driving performance, pile flexural and shear behavior, strand transfer and development length, long-term prestressing force
losses, and material durability.
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Studies of a full-scale horizontally curved steel I-girder bridge system under self-weightLinzell, Daniel Gattner 07 1900 (has links)
No description available.
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Design, analysis, and experimental behavior of seismic resistant post-tensioned steel moment resisting frames /Moreyra Garlock, Maria E. January 2002 (has links)
Thesis (Ph. D.)--Lehigh University, 2003. / In three parts. Includes vita. Includes bibliographical references (leaves 770-775).
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Critical evaluation of seismic design criteria for steel buildingsLefki, Lkhider January 1987 (has links)
No description available.
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Object-oriented steel connection design frameworkWillemse, G. E. (Grant Erin) 12 1900 (has links)
Thesis (MScEng)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: Connections are a vitally important part of any structural framework. Thisstatement may seem
obvious, yet it is surprisinghow often insufficient attention is given to the design of this essential
aspect of steelwork projects.
This thesis concentrates on developing a specification for designing steel connections with the
main emphasis on the practical and economical design of typical connections. The design
methods of the specification are developed according to the new South African design code
which is currently in draft form, namely SANS10162:Code of Practice for the Structural Use of Steel:
Part 1: Limit States Design of hot-rolled steelwork - 2002.
An object-oriented framework and associated graphical user interface for designing the
connections are developed and implemented. The primary objectives of the implemented
framework are:
• Being generic in the sensethat it allows for easy addition of additional connection types,
• To implement the design paradigm of the South African code, without fixing specific
parameter values programmatically in the implementation and
• To build on an existing architecture that allows for structural analysis,structural steel member
design and distributed collaboration in the design process. / AFRIKAANSE OPSOMMING: Verbindings vorm In uiters belangrike deel van enige staal struktuur. Alhoewel hierdie stelling dalk
vanselfsprekend mag wees, is dit egter verbasend hoe selde voldoende aandag aan die ontwerp
van hierdie essensiëleaspek van staalwerk projekte gegee word.
Hierdie tesis konsentreer op die ontwikkeling van In spesifikasievir die ontwerp van staal verbindings
met die oog op praktiese en ekonomiese ontwerp van tipiese verbindings. Hierdie
ontwerpmetodes isgebasseer op die nuwe Suid Afrikaanse ontwerpkode wat tans in proef-vorm is,
naamlik SANS 10162: Gebruikskode vir Stoa/bouwerk: Dee/I: Grenstoestandontwerp vir
warmgewa/ste staa/werk - 2002.
In Objek orienteerde raamwerk en In geassosieerde grafiese gebruikerskoppelvlak word ontwikkel
en geimplimenteer. Die primêre mikpunte van hierdie geimplimenteerde raamwerk is:
• Om generies te wees in die sin dat dit die byvoeging van addisionele verbinding tipes
toelaat,
• Om die paradigma van die Suid Afrikaanse kode te implimenteer sonder om enige waardes
van spesifieke parameters programmaties vas te lê, en
• Om dit op In bestaande argitektuur te bou wat strukturele analise, strukturele ontwerp en
verspreide samewerking in die ontwerpproses toelaat.
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Rehabilitation of nonductile reinforced concrete buildings using steel systems /Abou-Elfath, Hamdy Mohamed. January 1998 (has links)
Thesis (Ph.D.) -- McMaster University, 1999. / Includes bibliographical references (leaves 317-323). Also available via World Wide Web.
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Behaviour of composite structural laminate plates /Braun, Dale, January 1900 (has links)
Thesis (M. Eng.)--Carleton University, 1999. / Includes bibliographical references (p. 164-166). Also available in electronic format on the Internet.
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Maintenance of design aids in a handbook of steel construction /Ansari, Babak, January 1900 (has links)
Thesis (M. App. Sc.)--Carleton University, 2003. / Includes bibliographical references (p. 89-93). Also available in electronic format on the Internet.
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Reduction in fire resistance of steel beams caused by partial fire protection loss /Kang, Yu, January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2006. / Includes bibliographical references (p. 149-154). Also available in electronic format on the Internet.
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