Precast concrete structures are manufactured off-site in reusable molds. From all the extensive network of tunnels that exists until the present day in Rome makes us suspect that the precast concrete industry began in ancient Rome. However, it was documented as having started in the 1900s. There are several advantages to precast systems:
So, sustainable building developers practice precast concrete for LEED certification.
Here is a Master’s course to fulfill the thirst for learning. You will be part of 6 courses that deal with structural analysis and design for G + 15 precast building using ETABS.
ETABS is prevalent in the structural industry across the world. You will be able to get a good refresher of the bending moment and shear force diagrams of various types of structures which is very important to get a job in the field of structural engineering. You will be able to learn approximate methods of analysis of frames and therefore will be quickly able to validate results obtained from hand calculations with what is obtained in ETABS.
You will come across modern bridge forms such as prestressed I-girders and box girders. The course is based on real-life examples, so you will learn the problems experienced by engineers on a daily basis and where further research might be required to aid the industry. The 6 courses are:
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The course covers:
This course is completely about STAAD.Pro software. Here, the students will learn how to calculate the loads, analyse and design different structures.
This course covers:
A viaduct is generally a bigger structure, by its size, height or width that consists of a sequence of piers, columns, arches, supporting a long high-rise railway or road. But a bridge is a small structure, built to avoid an obstacle.
This course on elevated metro viaduct covers:
You will learn about the fundamentals of structural design and its applications in real life structures.
Superstructure is the part of the bridge located above the ground level. These structures carry the load and transfer it to the foundation through the substructures. This course is about designing both RCC (Reinforced Cement Concrete) and PSC (Prestressed Concrete) bridge superstructures. This includes the designing of different concrete superstructure components like the slabs, decks and girders. It also covers the steel-concrete composite design and various analysis methods. Towards the end of the course, you will be capable of
Knowledge and understanding of bending moment and shear force diagrams of structural members is necessary for a structural engineer. Students will learn how to obtain shear force and bending moment diagrams of different structures.
Precast concrete design is a highly-advanced blooming technology in the structural field. This course is designed to give you a basic understanding on structural behaviour of precast buildings under various loads.
Here, you will learn about:
Reinforced concrete members serve as the functional blocks of structural systems. The design, behaviour and failure of the reinforced concrete members influence the structural system.
Here, you will learn:
Design of 4 x 27.0m I-girder superstructure for metro viaduct
Design of substructure & foundation for a pier supporting 27.0m I-girders on both sides with Pile Capacity of 400T.
Analysis of multi span beam from a given floor layout with and without load patterning
Modelling of a frame, application of loading (gravity and lateral) and obtaining bending moment and shear force diagram in Etabs
Development of structural system & framing plan of a Sample Precast building (G+ 6) in Bhopal, India as per Indian Structural codes
Complete structural analysis and design of the sample precast building (G+6) in Bhopal, M.P., India using ETABS
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The topics that will be covered in this segment are –
The students would be introduced to beams and its various types
Students would be introduced to analysis approach for single span beams .Types of loading that will be considered are
Also, the approach to determine bending moment and shear force diagrams of these beams will be discussed in detail. The usual sign convention used in the industry will also be discussed.
Introduction to statically indeterminate beams would be done. Different methods of analysis of statically indeterminate structures – stiffness method and force method will be introduced. Equilibrium equations and deformation compatibility equations will be introduced(briefly touching upon Castigliano’s theorem to determine displacements)
The above methods will be used to determine bending moment and shear force diagrams of a single span statically indeterminate beam – analysis of propped cantilever beam subjected to uniform load and concentrated load
Concept of influence line diagram will be introduced. This will be followed by its applications. Influence lines of vertical reactions, bending moment and shear force will be derived and discussed for a single span simply supported beam.
Concept of moving loads will be discussed and determination of absolute maximum bending moment in beam due to a system of concentrated loads will be discussed
Muller Breslau’s principle will be introduced to determine qualitatively influence line diagrams of various quantities of statically determinate band indeterminate beams.
Concept of load patterning will be introduced and application of Muller Breslau’s principle will be discussed to determine qualitatively maximum moment in midspan, maximum moment over support, maximum support reaction, etc for multi span beams.
Introduction to concept of flexible supports will be done. Real life examples of flexible supports would be discussed. Importance of considering support’s flexibility will be discussed in statically indeterminate beams. Two span beam with one of the supports as spring would be analyzed. The result will be compared to a two span beam without flexible supports for students to be able to appreciate the significance of support’s flexibility
Introduction to portal frame structures and various types of portal frames –
The module covers the
To begin with, Preparation of DBR will be touched upon in this session.
This module covers the steps involved in modeling, design and analysis of RCC structure. We will go through the Structure’s framework and structural elements considered for study. At the end of the session, students will learn the generation of nodal structure/model of the given building as per geometry using STAAD.Pro
The next step involves the input viz material specifications, assigning supports and constants and design parameters of the model under study. The analysis of the building as per requirements will be discussed.
The Load Cases and Load Combinations to consider while designing a structure will be discussed in this module.
The load calculations involved for each load case viz.
The calculated load will then be applied on the software.
This module covers the complete analysis part of the structure.
Post Processing Results – Output file will be explained. It covers the interpretation of the results and extracting SFD, BMD, Reaction and Displacements for design purpose.
At the end of the session, students will able to understand and execute the design of structural elements (slab, beam, column and foundation) with the aid of STAAD.Pro and verify the results with manual calculation sheets
This module covers the types of steel structures and introduction to various components in a steel building
In this module, we will discuss the steel structure taken for study. The modeling of the structure will be carried out using coordinate method.
The Inputs to be given as per the specifications and codal standards will be explained first and then generated in the model. The loads considered in a steel building will be calculated using MS Excel and applied on the model.
After entering the input parameters and specifying the design specs, the analysis of the structure is carried out in this module.
This module covers the interpretation of Output file generated and extraction of results like Bending Moment, Shear Force Diagram and Serviceability check for each element considered in the building under study
At the end of this session we will be going through the representation of the analysis carried out in the form of document and drawing. Things to remember and consider while representing the design in the form of drawing (Detailing drawing involving C/S and L/S) and how to cross-check the extracted results from software with manual calculation.
This lecture will introduce the course and concrete as a construction material. Students are expected to have basic understanding of concrete design, but the lecture will remind them about the theory and key design principles. The lecture will also cover how concrete is used in bridges showcasing different forms and real-life examples where they are applied. It will explain where this material is most effective and tell how to choose appropriate form for a given site
This lecture will build on concrete design basics by introducing the most basic form of concrete bridges – solid slab. The lecture will explain how moments and forces are distributed, introducing the principle of effective width. The students will learn how to analyse slabs using hand calculations, design aids (e.g. Pucher charts) and computer-based analysis. The lecture will cover bending and shear resistance calculations allowing students to derive a safe slab thickness and specify appropriate reinforcement. Other important considerations such as punching, deflection and cracking will be covered. As well as standalone slab bridges, the course will cover continuous multi-span slabs (e.g. transverse design of composite plate girder slabs) and cantilever slabs (e.g. box girder outriggers). The lecture will touch on design of skew slabs.
This lecture will develop from solid slab design introducing voided slabs. It will explain the analysis complexities introduced by inclusion of voids in the body of concrete and show how grillage modelling can be used to tackle them. Transverse distortional effects experienced by these types of cross section will also be covered. The students will learn how to design and detail voided slabs to tackle longitudinal bending and shear as well as transverse effects arising from distortion
This lecture will continue the theme of cast-in-situ bridges and will talk about ribbed slabs. It will go through further examples of grillage modelling and how it can be applied to analyse these types of bridges. Other methods of analysis, such as shell and beam type models will be demonstrated, explaining where this may be beneficial. The students will learn how to design a concrete T-sections, selecting appropriate effective width. They will also learn about interface shear between rib and slab. Various details will be discussed, e.g. where a cross beam is necessary and how ribbed slabs are constructed
Students will learn about the benefits of prestressing compared to mild reinforcement. Various types of prestressing will be discussed, covering the differences between pre-tensioning and post-tensioning, and between bonded and unbonded tendons. Unlike reinforced concrete bridges, the prestressed bridges are often governed by serviceability limit state rather than ultimate capacity. The students will learn how to use stress-based calculation in order to check the structure is safe. The principle of brittle fracture will be introduced, demonstrating several real-life examples where this had led to catastrophic failure. The students will learn how to check the structure is no prone to brittle failure and how to prevent this type of behavior. This lecture will begin the talking about long-term effects (creep, shrinkage and PT losses), priming the students for the later course content.
Building on the previous lecture the students will learn how to design and detail concrete box girders. Various types of structures will be covered, from U-beam type bridges to straight and tapering multi-span bridges. The lecture will also touch on application of box girders in cable-supported bridges. Effects of torsion and curvature will be discussed. The students will learn how to analyse these types of structures and consider the aforementioned effects. This lecture will begin the talking about construction stage analysis, priming the students for the later course content
The students will learn why beam theory is not always applicable in concrete bridge design. After listening to this lecture, they will know how to identify D (discontinuity) regions and draw appropriate strut and tie arrangement to capture their behavior. They will then learn how to resolve a strut and tie model by hand and using a truss type computer analysis. This lecture will explain how there can be different strut and tie arrangement for the same problem and why some are better than others, giving examples of typical real-life problems and their most efficient solutions. This lecture will also touch on local effects such as bottlenecking, splitting and multiaxial compression
This lecture will continue the topic of struct and tie modelling and will dive into its application in bridge design. Classic bridge details will be shown, namely monolithic connections, half-joints, bearing regions, PT anchorages and stay-cable anchorages. Students will be demonstrated advanced uses of strut and tie modelling and how it can be applied in 3D.
This lecture will talk about integral bridges, their advantages and limitations. Typical problems concerning integral bridges will be discussed, such as ratcheting behind abutment and the need for close collaboration with geotechnical engineers. Although soil-structure interaction is a large topic worthy of a separate course, its implications on design will be clearly explained. The students will learn how to design a basic portal frame bridge and how to detail the abutments of a longer span concrete bridge.
This lecture will focus on application of concrete in composite bridges. The student will apply earlier skill of grillage analysis and slab design and apply them to composite structures. They will learn how to calculate elastic and plastic section properties using effective Young's modulus method. They will be demonstrated how to perform basic structural checks of a composite plate girder and truss bridges including design of shear studs. Advanced topics such as buckling and construction stage analysis will be mentioned, but not covered in depth, as these topics should be subject of the steel bridge superstructure course.
This lecture will focus on the long-terms effects, namely creep, shrinkage and loss of prestress, which had been introduced earlier in the lecture series. They will learn how to calculate long-term section properties. Examples where creep and shrinkage cause parasitic effects will be demonstrated, e.g. moments in continuous prestressed bridges and composite girders.
This part will also discuss the movement ranges and calculations related to the expansion joint specification. Movement and friction at bearings will also be mentioned.
This lecture will demonstrate various ways in which concrete structures can be constructed, e.g. cast-in-situ, launching and balanced cantilever construction. The students will learn that construction sequence can often govern design and that structures should always be checked in their temporary conditions.
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