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Bridge Insight : New Development in Long Span Arch Bridges
Bridges having superstructure and substructure integrated together with no bearing to transmit forces between the two are known as Integral bridges.
Integral bridges offer easy maintenance and better structural efficiency due to absence of expansion joints and bearings. Moreover, it improves ride comfort and improves durability since rain, snow, and chloride cannot penetrate the substructure.
However, displacement due to thermal expansion and contraction is limited in an integral bridge and effects of creep and shrinkage could cause extra stresses in the concrete superstructure, so it must be properly simulated.
FCM wizard in Midas Civil to construct long span bridges with Balanced Cantilever Method readily uses the advantage of Integral bridges and are used often.
Key Point 1: Importance of Integral Bridge and types of Foundation for Integral Bridge
Integral bridges offer considerably high durability than simply supported bridges and easy construction, inspection and maintenance. Codes recommend integral bridges for shorter span generally.
Key Point 2: Modeling of PSC Composite Integral Bridge
Step by step modelling using Node-element method is explained and manual generation of Construction Stages is performed. Also, Creep, Shrinkage as time dependent variation based on Eurocode is simulated in the model.
Key Point 3: Earth Pressure, Thermal Loads and Soil structure Interaction for Integral Bridges
Midas Civil offers automatic simulation of Soil structure interaction using “Abutment Springs” boundary feature. Barry Lehane procedure which considers the nonlinear behavior of soils in the definition of soil springs is adopted. Thermal Loads for Uniform and Gradient variation and Earth pressure is applied.
Key point 4: Design of PSC Composite Bridge based on Eurocode
Automated design shall be demonstrated will include the ultimate limit state checks and serviceability limit state checks as per Eurocode.
Key point 5: Case Study: Forder Valley Viaduct Integral bridge (UK)
A brief overview is mentioned explaining the various options available for modelling an integral bridge in terms of foundation and soil structure interaction. Finally, a quick description of the results obtained is discussed.
Introduction
Integral Bridges – An Overview
- what is an integral bridge?
- why integral construction?
- Integral bridge type of construction
- Type of foundation
Prestressed Composite Integral Bridge
- Modelling using Midas
- Creep and Shrinkage using Eurocode
- Construction Stage Analysis by creating stages
- Thermal action and its application in midas Civil
- Earth Pressure Loads
- Moving Load Analysis as per Eurocode
- Soil Structure Interaction: Abutment Springs - Static Analysis - Result discussion at Construction stage and post-Construction stage
Design of PSC Composite Bridge as per Eurocode 2:2-05
- Reinforcement Definition
- Auto Load combination
- ULS & SLS checks
Case Study: Forder Valley Viaduct Integral Bridge (UK)
- Bridge Overview
- Creep, Shrinkage and Strength variation
- Construction Staging in Midas
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
3D Excavation and Piled-Raft Foundation
[Part 1] 3D Geometry modeling and Meshing
[Part 2] Analysis control and checking results.
Senior Engineer / MIDAS IT
3,4 Years experience in structural bridge design.Senior Engineer / MIDAS IT
3,4 Years experience in structural bridge design.Thanks for registration.
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1. Participation of this seminar is FREE.
2. We recommend you to register immediately since the number of seats are limited.
3. If you come early to the seminar place, you can enjoy the welcome snack and coffee/tea.
4. For effective training session, we recommend you to bring your personnel laptop computer in order to get the hands-on experience of MIDAS software.
5. Training license and installation guide will be provided to all registrants before the seminar in advance.
1. Participation of this seminar is FREE.
2. We recommend you to register immediately since the number of seats are limited.
3. If you come early to the seminar place, you can enjoy the welcome snack and coffee/tea.
4. For effective training session, we recommend you to bring your personnel laptop computer in order to get the hands-on experience of MIDAS software.
5. Training license and installation guide will be provided to all registrants before the seminar in advance.
Participate in Survey event. 16 GB USB-flash drive will be provided to the one who submit the survey. Participate in Survey event. 16 GB USB-flash drive will be provided to the one who submit the survey. Participate in Survey event. 16GB USB-flash drive will be provided to the one who submit the survey.
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