Introduction
The Latest Engineering Trends and Issues
In March 2020, we hosted a webinar, “Case Study : Construction Stage Analysis of Precast Bridge" by Saathwik Vudayagiri, Structural Engineer, BECA.
MIDAS CIVIL Construction Stage Case Study Precast Concrete Bridges Incremental Launching Method Temporary Works
This case study covers the following aspects:
MIDAS CIVIL Prestressed Concrete Construction Stage Tips & Tutorials Precast Concrete Bridges Structural Analysis Time Dependent Losses Elastic Shortening
Prestress does not remain constant with time. Prestress loss is nothing but the reduction of initial applied prestress loss to an effective value. Loss of prestressing affects the strength of members and also significantly affects the member’s serviceability. Prestress loss is classified into two types:
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Currently, Prestressed Concrete Beam Bridge, which is generally applied as the most economical bridge type for small and medium-sized bridges in construction works such as highways and national highways, has been introduced to the entire bridge construction field for almost 60 years after the technical proposal.
In this post, we will look at the initial development story and trends of the Prestressed Concrete girder.
Prestressed Concrete Bridge Insight Precast Concrete Bridges Tendon Profile Arrangement FEM Analysis Tensile Stress
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Prestressed concrete is a structural material that allows for predetermined engineering stresses to be placed in members to counteract the stresses of loads. It combines the high-strength compressive properties of concrete with the high tensile strength of steel. These prestressed concrete girder bridges are currently used in bridge construction all over the world. Research on materials and superstructures of bridges has shown that prestressed concrete girder bridges have the longest life span and require less maintenance than other bridges. Furthermore, these bridges are increasingly being used due to their aesthetic versatility, strength, quality, and reduced construction time.
MIDAS CIVIL Load Rating Case Study Finite Element Analysis Precast Concrete Bridges Structural Analysis Construction Stage Analysis Finite Element Modeling AASHTO Classification
PSC Bridge CS454 Bridge Assessment Tips & Tutorials Precast Concrete Bridges Moving Load Analysis All Model 1 All Model 2
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This 1-hour course will cover the moving load analysis and assessment design of a PSC girder bridge. Attendees will get many valuable tips on the common assessment design process of PSC bridges as per CS454.
In midas Civil 2020 v2.1, PSC bridge assessment as per CS454 has been newly implemented. During the online session, moving load analysis with All Model 2 and special vehicles will be demonstrated. Using the analysis results, assessment load effects and assessment resistances will be obtained, and they will be verified using adequacy factor and reserve factor. Ultimate limit state (flexure, shear, and torsion) and service limit state verification are provided in the tabular format and MS excel report.
MIDAS CIVIL Material Properties Bridge Insight Precast Concrete Bridges Structural Analysis Structural Modeling
With the advent of the IT era in the 21st century, information that was previously unavailable in the engineering market has become possible. Engineering simulation using a computer program is one of them, and it is currently used in most engineering industries.
MIDAS CIVIL Bridge Design Case Study Precast Concrete Bridges Composite Girder Structural Analysis Design Consideration Traffic Loads
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A girder bridge is one of the most common types of bridge design. Prestressing a composite girder in the negative moment region increases its stiffness by preventing cracking of concrete under service loads. In this webinar, we share the design practices of girder span bridges in Sarawak and show which functions of midas Civil can be utilized for the effective modeling of this type of structure.