With its destabilizing shifts away from mercantilism toward liberal economics, early nineteenth-century Britain generated an increasingly powerful class of technocrats, including architects and builders, in design and construction. This burgeoning professional group involved in architecture, planning, and building directed processes, products, and technologies of construction toward maintaining societal order. In doing so, they cemented their social hierarchical status. Following abolition of the slave trade in 1807 and emancipation from 1833-1838, architects and builders had to adapt their techniques of communication and labor management, and adjust their building practices to material and technological innovations. In contrast to heroic narratives of industrial progress and optimism that conventionally dominated histories of modern architecture, figures of apprehension, anxiety, and anticipation more appropriately encapsulate the consequential events of this period. Through empirical analyses of small-scale techniques of drawing and building, this dissertation renders the general transition from rigid, mercantilist arrangements aligned with economies of enslavement toward ideologies of free trade, increasingly widespread wage labor regimes, and liberalism more broadly, into legible, tangible forms. Using as heuristics architectural technologies for preempting, mitigating, and suppressing fires—planning, constructional assemblies, mechanisms, materials, regulations, financing, and legislation—I demonstrate that preventing undesirable occurrences governed a heterogeneous array of activities. These ranged from English architects' professionalization initiatives, to plans for evacuating people from and extinguishing fires in theaters, to labor management in West Indian military outposts, to fire insurance offices that spread their risk profiles by indemnifying Caribbean sugar plantations beginning in the late eighteenth century. Thus capital and uncertainty went hand in hand as elements in conveying wealth, as architects and others involved in building at once made risk both fungible and material.

Thesis (MEng (Civil Engineering))--University of Stellenbosch, 2007. / In the past use was made of prescriptive design rules to provide for the fire limit state. Modern Design Codes provide the scope and the means to design for fire in a performance based manner. The Eurocode provides guidance on the actions on structures exposed to fire as well as methods to predict the structural behaviour of elements in fire. Structural designers can now incorporate the use of parametric fire curves to describe compartment fires. These fire models are not an extension of the old nominal standard temperature time curves. Parametric curves are analytical models that are based on natural fire behaviour. The temperature in the fire compartment can be predicted in a scientific manner taking account of fire loads, ventilation conditions and compartment characteristics. The combination of rational fire models and temperature dependant structural behaviour enables designers to predict whether elements will fail during a fire. This is an improvement on the empirical prescriptive fire resistance ratings, used to date. Multi-storey steel framed structures, with composite floors, were identified as structures with high inherent fire resistance and robust behaviour. The composite beams in the floor structure were identified as critical elements when subjected to fire. The deterministic design and the reliability level of these elements were studied. Deterministic fire design procedures are presented that can be used to design unprotected composite beams for the fire limit state. The reliability of the deterministic design procedures was evaluated through a First Order Reliability Method. Parametric fire curves are suitable for reliability analysis due to the fact that they can be described by stochastic variables. The fire load was determined to be the dominant variable influencing the reliability level of the composite beams. The ventilation conditions of the fire compartment also has important implications for the temperature development of the composite beams. The reliability analyses results show that reasonably sized composite beams can be used as unprotected elements in smaller fire compartments with moderate fire loads. It was found that a structural element’s total probability of failure can be improved by the use of active fire fighting measures. The benefit of active fire fighting measures can be quantified by considering their probability of failure. By use of conservative assumptions and basic knowledge of fire engineering principles, rational design methods can provide safe and economical solutions for fire design of composite beams.

Thesis (Ph. D.)--Carleton University, 2002. / Includes bibliographical references (p. 263-286). Also available in electronic format on the Internet.

Thesis (M.App.Sc.) - Carleton University, 2006. / Includes bibliographical references (p. 247-250). Also available in electronic format on the Internet.

Thesis (M.App.Sc.) - Carleton University, 2007. / Includes bibliographical references (p. 136-140). Also available in electronic format on the Internet.

The mechanical and material properties of structural steel at elevated temperatures play an important role in structural fire design. The South African 350W and S355 structural steels are common in building structures with S355 slowly replacing the older 350W. The cost and feasibility of full scale fire tests are some of the causes for the lack of experimental data on the behaviour of steel structures when exposed to fire. Therefore excessively conservative design codes based on isolated laboratory experiments are used in practice which leads to increased material costs. Another area of concern with respect to building safety is the reusability of structural steels post fire exposure, which is not effectively addressed within these codes. This study aims to establish greater insight into structural fire design and simulation on which further research can be built. Experimental programs on the temperature dependent behaviour of these steel members loaded axially are conducted and compared with theory and the Eurocode 3 standard [1]. The reusability of steel exposed to fire and after being cooled down is investigated and compared to the findings by Outinen [2]. Further testing on material to determine the relationship between remaining life and hardness degradation after cooling down was conducted. Experimental data from various external studies are used to develop novel computer models using the finite element analysis software, SimXpert [3]. These are verified against the original data and compared to existing design codes. A parametric approach is used with these models to demonstrate the advantages of computer simulations in structural fire design. Different cross sections and slenderness ratios are evaluated for their susceptibility to buckling at elevated temperatures. The results of this study show that as temperature and exposure time increase the integrity of steel members decrease. The current design codes accurately predict the behaviour of isolated specimens but lack data on real situations where the specimen is part of a complex structure. It was found that steel members can be reused if their exposure temperature does not exceed 700°C, after which their strength can reduce to 90%. This temperature dependant behaviour was successfully modelled using basic computer simulations and then demonstrated the ease in which they can be used in place of experimental regimes. The parametric advantages of these simulations were demonstrated by predicting the effects of slenderness ratios and geometry cross sections on the buckling behaviour. / Thesis (M.Sc.)-University of KwaZulu-Natal, Durban, 2012.