Structural design of a footbridge: Difference between revisions

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This case study (under development June 2021) will provide example documents for the design of a footbridge that will be demonstrate how a stuctural design evolves.   
<div style="width:800px;">
=== Main design documents ===
This case study of the structural design of a footbridge provides documents that demonstrate how a stuctural design evolves.   
 
The documents do not refer to a real site but they are based on a bridge that was built. 
[[File:Wood-street-elevation.png|thumb|500x500px]]
'''Definitions of document types''': see [[Framework for structural design learning#Design Documents|here]] 
=== Documents at stages 1 and 2 ===
{| class="wikitable"
{| class="wikitable"
|'''Design document'''
|-
|-
|Client brief
|[https://eit.engineers.scot/images/6/66/Ch2_Footbridge_client-rquirements.pdf Client brief]
|-
|-
|Site Information
|[https://eit.engineers.scot/images/e/ea/Ch2_Footbridge_site-information.docx.pdf Site Information]
|-
|-
|Structural design brief - Stage 1  
|[https://eit.engineers.scot/images/c/c0/Ch2_Footbridge_design-brief-stage1.pdf Structural design brief - Stage 1]
|-
|-
|Structural design brief - Stage 2
|[https://eit.engineers.scot/images/1/17/Ch2_Footbridge_option-analysis-13-07-22.pdf Options analysis]
|-
|-
|Option analysis
|[https://eit.engineers.scot/images/6/69/Ch2_Footbridge_construction-method.docx Construction Methods]
|-
|-
|[https://eit.engineers.scot/images/1/15/Ch2_Footbridge_design-proposal-stage4.pdf Design proposal for Stage 4]
|[https://eit.engineers.scot/images/8/8b/Ch2_Footbridge_design-brief-stage2.docx Structural design brief - Stage 2]
|-
|-
|Design Verification
|[https://eit.engineers.scot/index.php?title=File:Footbridge_design-proposal-stage2a.docx Design proposal stage - 2]
|-
|Drawings
|-
|Specifications
|}
|}
=== Design verification documents ===
=== Documents at stages 3 and 4 ===
{| class="wikitable"
{| class="wikitable"
|+
!Document
!
|-
|-
|Strength and serviceability
|Drawings:
|
[https://eit.engineers.scot/images/1/14/Wood_street_footbridge_GA.pdf General Arrangement]
 
[https://eit.engineers.scot/images/9/9c/Wood_street_footbridge_Drg2.pdf Layout and typical details]
|-
|-
|Foundation assessment
|Specifications
|
|-
|-
|Modelling review
|'''Design verification'''
|
[https://eit.engineers.scot/images/c/c0/Ch2_Footbridge_verification-A.docx Verification report A]
|-
 
|Safety, risk
[https://eit.engineers.scot/images/7/72/Technical_assessment-1.docx Preliminary techical assessment report]
|
 
|-
[https://eit.engineers.scot/images/2/23/CH2-Footbridge-Prelimiinanry-calculations.xlsx Preliminary calculations]
|Stability, robustness
 
|
A typical [https://eit.engineers.scot/images/4/4f/Sample_Steel_Frame_Design_Pack-1.pdf caculations pac]k (not for a bridge)
|-
 
|Environment, sustainability
|
|-
|Cost
|
|-
|Aesthetics
|
|-
|Construction methods
|
|}
|}
'''General guidance:'''
 
'''Guidance for the design of footbridges'''
{| class="wikitable"
{| class="wikitable"
|+
|[https://www.standardsforhighways.co.uk/prod/attachments/7be571c3-bcd5-414c-b608-48aa19f7f4a1?inline=true CD353]  Guidance for the design of footbridges.
|[https://www.standardsforhighways.co.uk/prod/attachments/7be571c3-bcd5-414c-b608-48aa19f7f4a1?inline=true CD353]  Guidance for the design of footbridges.
|}               
[https://www.standardsforhighways.co.uk/dmrb/search/17dadcc6-8e01-455d-b93e-c827d280839a CG 300] Technical approval of highway structures
 
|}
'''Definitions:'''
</div>
 
* '''''Client brief''''' A statement from the client of what what is required in relation to the structure.
* '''Site information'''  A topographic plan of the site, geotechical site investigation reports, etc.
* '''Requirements statement'''  Starts with the client brief and adds further items. ''Guidance'':  From [https://eit.engineers.scot/index.php?title=Top-down_strategy#Requirements Top-down]
* '''Option analysis report''' Statement of the reasons for choosing the form of the structure, materials etc. ''Guidance:''  [https://eit.engineers.scot/index.php?title=Top-down_strategy#Option_identification_and_analysis From Top-down]  [http://info.iesis.org/sep/Option-assessment.doc Paper]
* '''Design proposal'''  Document, mainly for approval by the client, that the proposed arrangements for the design are valid i.e. that they are capable of satisfying the requirements
* '''Design verification'''  Documenet (or set of documents) that show that the design meets the requirements.
* '''Drawings, specifications''' Output for contractor.

Latest revision as of 04:51, 29 July 2022

This case study of the structural design of a footbridge provides documents that demonstrate how a stuctural design evolves.

The documents do not refer to a real site but they are based on a bridge that was built.

Wood-street-elevation.png

Definitions of document types: see here

Documents at stages 1 and 2

Client brief
Site Information
Structural design brief - Stage 1
Options analysis
Construction Methods
Structural design brief - Stage 2
Design proposal stage - 2

Documents at stages 3 and 4

Drawings:

General Arrangement

Layout and typical details

Specifications
Design verification

Verification report A

Preliminary techical assessment report

Preliminary calculations

A typical caculations pack (not for a bridge)

Guidance for the design of footbridges

CD353 Guidance for the design of footbridges.

CG 300 Technical approval of highway structures

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