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Structural design processes: Difference between revisions
Structural design processes (view source)
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Since every strucuture is different and innovatiion may be needed, a flexible approach to the processes is needed. Most of the processes used are not algorithmic i.e. they do not give unique results and do | Since every strucuture is different and innovatiion may be needed, a flexible approach to the processes is needed. Most of the processes used are not algorithmic i.e. they do not give unique results and do | ||
Figure 1 shows how, in the creation of a structure, one starts with a set of requirements that define the performance of the structure. This is transformed by a design process into design output, i.e. into information about what the structure will be and justification for the design decisions.. A construction process then transforms the design output into the physical structure. | Figure 1 shows how, in the creation of a structure, one starts with a set of requirements that define the performance of the structure. This is transformed by a design process into design output, i.e. into information about what the structure will be and justification for the design decisions.. A construction process then transforms the design output into the physical structure. Inthis article, processes used in structura design are discussed | ||
[[File:Structure-process.png|none|thumb|600x600px|Figure 1 Stages in the creation of a structure]] | [[File:Structure-process.png|none|thumb|600x600px|Figure 1 Stages in the creation of a structure]] | ||
=== A basic model of the design process === | === A basic model of the design process === | ||
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Figure 2 shows a model of the design process as an instance of the [[Top-down strategy]]. The 'system model' is information about the stucture being designed and about its context. | Figure 2 shows a model of the design process as an instance of the [[Top-down strategy]]. The 'system model' is information about the stucture being designed and about its context. | ||
The process is not normally linear | The process is not normally linear. Iterations and revisions are made based on continuous review activity, | ||
At the the InceptionStage, requirements for the performance of the stucture and for the design process are established and information about, for example, the site is identified. | At the the InceptionStage, requirements for the performance of the stucture and for the design process are established and information about, for example, the site is identified. | ||
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Table 1 only indicates some of the complexity of the system plan. It does not show iterations that are common, especially at the concept stage, nor does it show interactions among the sub-processes. | Table 1 only indicates some of the complexity of the system plan. It does not show iterations that are common, especially at the concept stage, nor does it show interactions among the sub-processes. | ||
=== Controlling Risk === | === Controlling Risk === | ||
Reducing risk of | Reducing risk, e.g. risks of collapse, inadequate performance, cost escalations, etc, is a fundamental strategy in engineered processes. A structural collapse can have serious consequences and all structural engineering activities should be treated as being, to some degree [[Risk|safety critical]]. | ||
Structural egineers have a duty of care to ensure that what they design will be safe to use. | Structural egineers have a duty of care to ensure that what they design will be safe to use. | ||