post-tensioned psc box girder bridge using fcm as per...
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![Page 1: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/1.jpg)
SeungKyu Nam [email protected]
Post-tensioned PSC Box Girder Bridge using FCM as per Eurocode 13 February 2018
![Page 2: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/2.jpg)
Learning Objectives
• Basic procedure of designing segmental bridges
• Manual method of modeling
• Modeling using Wizard
• Checking Results and Design Report
![Page 3: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/3.jpg)
Introduction
Bridge type: Curved balanced cantilever bridge
Horizontal & Vertical alignments • Importing .dxf file • Super elevation: Continuous variation from 0 to 5 ͦ • 20 m pier height
Top View
Side View Front View
![Page 4: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/4.jpg)
Geometry
Tapered Section with polynomial variation
Tapered Section
![Page 5: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/5.jpg)
Superelevation
Beta angle
0
Modify B-Angle from element table
![Page 6: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/6.jpg)
Time dependent material properties
Creep & Shrinkage
Compressive Strength
![Page 7: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/7.jpg)
Tendon
Internal (Pre-Tension)
Internal (Post-Tension)
External (Post-Tension)
![Page 8: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/8.jpg)
Tendon
Tendon Template
PSC Value sections UK code DB
( UK-M, UK-SY, UK-TY, UK-TYE,
UK-U, UK-Y, UK-YE )
Add
AutoGeneration
Tendon template
Tendon profile generator AutoCAD .dxf file import
![Page 9: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/9.jpg)
Construction Stage
Define duration and additional step for each stage Define activation of elements Activate boundary conditions Activate and deactivate load as per construction schedule
![Page 10: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/10.jpg)
Traffic Load
Step 1
Moving Load Code
Step 2
Traffic Line Lane or Traffic Surface Lane
Step 3
Standard Vehicle or User-defined Vehicle
![Page 11: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/11.jpg)
Vehicle from database and automatic consideration of adjustment factor
Traffic Load: Load Model 1 vehicle
![Page 12: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/12.jpg)
Vehicle from database and automatic consideration of Ψ factors
Traffic Load: Load Model 1 vehicle
![Page 13: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/13.jpg)
Traffic Load: Load Model 3 vehicle
![Page 14: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/14.jpg)
Traffic Load: Load Model 3 vehicle
![Page 15: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/15.jpg)
Traffic Load: Moving Load Case
![Page 16: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/16.jpg)
Temperature Load
Seasonal Temperature: Element / System / Nodal Temp. Temperature Gradient: Temp. Gradient, Beam Section Temp.
![Page 17: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/17.jpg)
Results
Deflections & deformed shape Reactions in nodes
Forces and stresses in elements Moving load tracer result Tendon loss result
![Page 18: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/18.jpg)
Results
Top fiber Bottom fiber
![Page 19: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/19.jpg)
Design Report
Select the desired ULS and SLS
Enter the Partial Factors
Flexure Design
Torsional Design
Shear Design
![Page 20: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/20.jpg)
Practical Features: Effective Width Calculation / FCM Camber Control
Effective Width Calculation FCM Camber Control
![Page 21: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/21.jpg)
Practical Features: Transverse Analysis Model Wizard
Selection Load Tendon
![Page 22: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/22.jpg)
10
midas Civil Demonstration
Program Demonstration
![Page 23: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/23.jpg)
Modeling feature comparison
Manual Method
• Define material and section properties
• Structural modeling
• Define and compose Structure Group
• Define and compose Boundary Group
• Define and compose Load Group
• Load input
• Tendon arrangement/prestressing
• Define construction stages
• Define Time Dependent Material Properties
• Perform Analysis
Wizard Method
• Define material and section properties
• FCM Wizard
• Define and Time Dependent Material Properties
• Perform Analysis
![Page 24: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/24.jpg)
Tips: How to check section properties of tapered section?
![Page 25: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/25.jpg)
Tips: Analysis result for tapered section
Node
• Analysis results are calculated at the neutral axis of the section (perpendicular to the neutral axis)
![Page 26: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/26.jpg)
10
Tips: Reinforcement
![Page 27: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/27.jpg)
Tips: Tendon Elongation
• Theoretical tendon elongation ranges are calculated and can be provided as a reference material during the construction procedure.
![Page 28: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/28.jpg)
Q & A
![Page 29: Post-tensioned PSC Box Girder Bridge using FCM as per Eurocodeuk.midasuser.com/web/upload/sample/Post_tensioned_PSC... · 2018-04-25 · SeungKyu Nam nsk0201@midasit.com Post-tensioned](https://reader030.vdocument.in/reader030/viewer/2022040921/5e99564a1d5e4447f61ecdf0/html5/thumbnails/29.jpg)
Thank You ! For any questions, feedback and suggestions send an e-mail at: [email protected]