Structural design processes: Difference between revisions

Revision as of 17:02, 19 November 2021

Design involves the integration of a range of process - see, for example, the process map

The simple model of:

Input -----> process -----> outcomes

prompts the observation that deep focus on the quality of the inputs and quality of the processes is critical for success. Designers therefore need to work hard to ensure that the inputs and processes that they use are the most appropriate that can be devised in the context.

This principle applies to all context where complex uncertainty is to be addressed.

Risk

A structural collapse can have serious consequences and all structural engineering activities should be treated as being, to some degree, safety critical.

It is important to pay special attention to the requirements of the client but such considerations should not over-ride duty of care to the publc.

Naval architect, Stephen Payne, designer of the Queen Mary 2, said (at a talk given to the Institution of Engineers in Scotland in 2020). "When designing a cruise liner, the regulations represent the starting point for my safety assessment. The Titanic met the then current regulations." Hundreds of people might drown if a passenger liner was lost at sea. There are equivalent risks in structural design e.g. for a long span bridge or the roof of a sports stadium. Use of the principle that the starting point for design should be the regulations should be adopted in all strutural designs. This requires critical thinking by all participants.

The Structural Design Process

See here.

Process mapping

The Institution of Structural Egineers publishes a Structural Plan of Work that sets out an overall process for structural engineers working on the design of a building.

The stages in the IStructE Plan of Work are shown in Figure 1.

Figure 1 Stages in the IStructE Plan of Work

A process map for structural design based on the IStructE Plan of Work is shown in Table 1.

Table 1 Simplified process map for structural design

Design Programme

A simpler form of the Plan of Work for design is shown in Table 1..

Table 1 Simplified process map for a structural design

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-=== <big>Risk</big> ===
-A structural collapse can have serious consequences and all structural engineering ativitie should be treated as being, to some degree, [[Index.php?title=Risk|safety critical]].
-It is important to pay special attention to the requirements of the client but such considerations should not over-ride duty of care to the publc. Of funds are not available to build a safe structure, the project should not be undertaken,
-Naval architect, Stephen Payne, designer of the Queen Mary 2, said (at a talk given to the Institution of Engineers in Scotland) in 2020).  "When designing a cruise liner, the regulations represent the starting point for my safety assessment. The Titanic met the then current regulations."  Thousands of people might drown if a passenger liner was lost at sea.  There are equivalent risks in structural design e.g. for a long span bridge or the roof of a sports stadium.  Use of the principle that the ''starting'' point for design should be the regulations should be adopted in all strutural designs. This requires [[critical thinking]] by all participants.
+Design involves the integration of a range of process - see, for example, the process map
+The simple model of:
+          Input ----->  process  -----> outcomes
+prompts the observation that deep focus on the quality of the inputs and quality of the processes is critical for success.  Designers therefore need to work hard to ensure that the inputs and processes that they use are the most appropriate that can be devised in the context.
+This principle applies to all context where complex uncertainty is to be addressed.
+=== Risk ===
+A structural collapse can have serious consequences and all structural engineering activities should be treated as being, to some degree, [[Index.php?title=Risk|safety critical]].
+It is important to pay special attention to the requirements of the client but such considerations should not over-ride duty of care to the publc.
+Naval architect, Stephen Payne, designer of the Queen Mary 2, said (at a talk given to the Institution of Engineers in Scotland in 2020).  "When designing a cruise liner, the regulations represent the starting point for my safety assessment. The Titanic met the then current regulations."  Hundreds of people might drown if a passenger liner was lost at sea. There are equivalent risks in structural design e.g. for a long span bridge or the roof of a sports stadium.  Use of the principle that the ''starting'' point for design should be the regulations should be adopted in all strutural designs. This requires [[critical thinking]] by all participants.
+==== The Structural Design Process ====
+See [[Structural design process|here]].
+==== Process mapping ====
+The Institution of Structural Egineers publishes a Structural Plan of Work that sets out an overall process for structural engineers working on the design of a building.
+The stages in the IStructE Plan of Work are shown in Figure 1.
+[[File:ISE-PlanofW-2.png|center|thumb|800x800px|Figure 1 Stages in the IStructE  Plan of Work]]
+A process map for structural design based on the IStructE Plan of Work is shown in Table 1.
+[[File:Des-proc-2.png|center|thumb|800x800px|Table 1 Simplified process map for structural design]]
+==== Design Programme ====
+A simpler form of the Plan of Work for design is shown in Table 1..
+Table 1 Simplified process map for a structural design
+==== Design Programme ====