Structural Design of Highrise Precast Buildings using ETABS

A 3 month course which focuses on the structural analysis and design of precast buildings as per Indian codes

  • Domain : CIVIL
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A Quick Overview

The course of "Structural design of highrise precast building using ETABS" focuses on the structural analysis and design of a sample precast building as per Indian codes of structural design. The course emphasizes the use of the precast scheme in the structure and develops the element & connection assemblies accordingly. The analysis model of the precast building is developed in ETABS and detailed element & connection design has been done using hand calculations & ETABS results. The course encompasses right from the concept design stage to the detailed design, and thereby developing the structural system right from the scratch to final comprehensive design.The course also covers the criterion of element sizes and lifting, transportation mechanism/constraints of various precast elements. The concept of diaphragm design and progressive collapse has been addressed in the precast building in the course. Various types of precast elements and connection types are also discussed in the course. 


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COURSE SYLLABUS

1Basic Intro: Codes, Inputs, software

  • Introduction to precast concrete structure & its fundamental difference from cast in-situ structures.
  • Defining the outline of the entire course & things to be covered.
  • Structural design of G+15 precast building.
  • Inputs required 
    • Architectural plan of the buildings
    • Location of the building
    • Usage of the building
    • Substructure Information (soil capacity, subgrade modulus)
  • Slight brief about the structural codes to be used IS 456, IS 1893, IS 13920, IS 15916, PCI reference
  • Slight brief about the software to be used during the course 

2Concept Design

  • Work with the architectural plan and prepare the structural framing at different level
  • Understand & establish the vertical load path of the building
  • Understand & establish the lateral load resisting system / stability system for the building.
  • Understanding of grounding of forces in the structure 
  • Freeze the qualitative structural system for building
  • Develop the structural framing plans of all the level for preparation of analytical model

3Concept Design - Precast

  • Break down of the structural elements to feasible precast members
  • Basic understanding about various precast elements
  • Criterion for sizing of various precast members
  • Introduction to various type of precast elements
  • Preparing the updated structural plans as per precast structural scheme
  • Developing some rudimentary connection sketches at this stage.

4Force Calculation

  • Identifying all the forces to be considered for the analysis
  • Calculation of the all the forces
  • Calculation for wind, snow & earthquake loads
  • Basic understanding of IS 1893 (Static & Dynamic method)
  • Few hand calculations showing seismic base shear
  • Additional stages to be taken for precast members: demolding, transportation, erection

5Load combinations, Strength & Serviceability parameters, Progressive collapse

  • Load combination as per IS 456 & IS 1893
  • Strength parameters for precast members
  • Serviceability parameters & checks for precast building
  • Progressive collapse – general introduction 
  • Progressive collapse prevention system for the building
  • Introduction to horizontal & vertical ties

6Analytical model for the precast building in ETABS

  • Setting up the analytical model 
  • Geometry of the analytical model as per framing plans
  • Preliminary sizing of the structural members
  • Section properties of the structural members
  • Support parameters, connection parameters, mass source
  • DBR preparation

7Analytical model – Loading, connection parameters, foundation properties, seismic inputs

  • Load application on the analytical model
  • Seismic load application on the analytical model 
  • Wind load application 
  • Mass source 
  • Load combination
  • Limit state of strength & serviceability 

 

8Behavior of the analytical model

  • Checking the behavior of analytical model
  • Deflected shape under various load case (dead, lateral)
  • Base reactions & uplifts
  • Story drifts & deflections
  • Connection forces in FEM design 
  • Mode shapes & governing modes 
  • Mode participation factors
  • Preliminary system run design of the members

9Foundation design of the building & Precast element design

  • Detailed analysis for base reaction forces
  • Suggestion of type of foundation based on base reactions & soil properties
  • Design for the foundation using SAFE, reinforcement design for raft.
  • Additional checks for the foundation
  • Verifying the initial assumed sizes of the members
  • Detailed design of the precast elements
  • Design for reinforcement precast slabs (solid slabs, Hollow core slabs) 
  • Design for precast reinforced beams & Columns
  • Design for precast concrete walls 

10Design of various precast elements

  • Additional checks to be made during lifting & transportation stages
  • Connection & reinforcement for other design stages
  • General Information about various types of structural elements
  • Hollow core slabs, Filigree slabs, Balcony slabs and their connections 
  • Prestressed structural members – general introduction
  • Types of precast walls: Sandwich walls 
    • Double walls
    • Battery walls
    • Cavity walls

11Design of precast connections

  • Identifying & computing connection forces from analytical model
  • Schematic design of precast connection
  • Connection sketches 
  • Detailed connection design for various connections 
    • Wall – wall horizontal 
    • Wall – wall vertical 
    • Wall – Foundation 
    • Wall – Slabs
    • Beam – slab 
    • Beam – column connections 
    • Balcony slab – beam connection
  • General information about various type of connections

12Diaphragm design and Robustness

  • Design for semi rigid diaphragm for precast deck
  • Cast on -site reinforcement required for diaphragm action
  • Preparation of reinforcement details for cast on-site reinforcement 
  • Robustness system of the building 
  • Provision of horizontal and vertical ties in the building
  • Computing Tie forces 
  • Changed connection forces 


Projects Overview

Structural system for building

Highlights

Development of structural system & framing plan of a Sample Precast building (G+ 6) in Bhopal, India as per Indian Structural codes

Key Highlights:

  • Collaboration of course content from week 01 - Week 06
  • Understanding of architectural layouts of the building
  • Creating the load path of the various forces to foundation
  • Developing the structural scheme (Precast) for the building as per architectural plans
  • Preparing structural framing plans of the building along with the structural sections
  • Load calculations for all the forces acting on the building. 
  • Calculation for seismic and wind forces
  • Identifying and dealing the irregularities of the building
  • Preparing the design basis report of the building design

Deliverables:  

  • Design Basis report 
  • Structural framing plans (AutoCAD/PDFs)
  • Load calculations & combination (in form of a report)

Precast design for a sample building with slight complexities

Highlights

Complete structural analysis and design of the sample precast building (G+6) in Bhopal, M.P., India using ETABS

Key Highlights:

  • Collaboration of course content from week 07 - Week 12
  • Interpretation of framing plans to develop the analytical model
  • Preparation of analytical model in ETABS: Geometry
  • Preparation of analytical model in ETABS: Loads
  • Analyzing the structural behavior of the model
  • Checking the deflections, reaction uplift, story drifts in the analytical model
  • Element design of every structural member
  • Design for precast connections

Deliverables: 

  • Error free ETABS model of the building
  • Element design of structural members
  • Connection design of precast connection (sketches) 
  • Complete calculation report of the building

Flexible Course Fees

Choose the plan that’s right for you

Basic

2 Months Access

7000

Per month for 3 months

  • Access Duration : 2 Months
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Email Support : Available
  • Forum Support : Available
Premium

Lifetime Access

15000

Per month for 3 months

  • Access Duration : Lifetime
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Individual Video Support : 12/ Month
  • Group Video Support : 12/ Month
  • Email Support : Available
  • Forum Support : Available
  • Telephone Support : Available
  • Dedicated Support Engineer : Available

WHO IS THIS COURSE FOR ?


  • Entry level structural engineers
  • Fresher civil & Structural engineering graduates and postgraduates
  • Experienced structural engineers who want to learn precast structure

SOFTWARE COVERED

CSI ETABS 2019 & CSI SAFE 2016

CSI ETABS 2019: ETABS is extensively used structural analysis and design software in the building industry. It has capabilities to perform static/ dynamic and linear / non-linear analysis. Furthermore ETABS is highly user friendly software and very easy to get hands-on learning. It has design capabilities for concrete frame design, shear wall design, steel design. In this course we are using it for analysis and design of precast concrete buildings. 
 
CSI SAFE 2016: SAFE is another very essential tool used by structural engineering professionals around the world for floor design and foundation design. Users with the help of a friendly interface can create plan models for foundation and slab to perform the design. SAFE has capability of FEM based as well as strip based reinforcement design. The reinforcement detailing done in SAFE also gives satisfactory results. We are using SAFE of raft design in the course. 


SKILL LYNC WORKS TO GET YOU A JOB

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Certification

  • Top 5% of the class will get a merit certificate
  • Course completion certificates will be provided to all students
  • Build a professional portfolio
  • Automatically link your technical projects
  • E-verified profile that can be shared on LinkedIn

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Frequently Asked Questions

1Who can take this course?

  • Entry level structural engineers
  • Fresher civil & Structural engineering graduates and postgraduates
  • Experienced structural engineers who want to learn precast structure

2What is included in this course?

  • Comprehensive structural analysis and design for G + 15 precast building using ETABS & SAFE
  • Detailed understanding of Precast Design (Stability analysis, Precast member Design, Precast connections)
  • Calculation of gravity and lateral loads on the building structures 
  • Understanding for buildings behavior under different loads

3What will the student gain from this course?

Deep understanding of structural behavior of precast building under various loads

4What software skills are you teaching and how well are these tools used in the industry?

  • ETABS – Quite prevalently used in building industry across the world (US, India, Middle East, UK, Australia)
  • Strusoft FEM Design – Tool used for structural analysis & design of precast buildings 

5What is the real world application for the tools and techniques being taught in this course?

Both tools are integral part of a structural engineer’s professional life. And widely used for building design.

6Which companies use these techniques and for what?

WSP, AECOM, ATKINS, RAMBOLL, JACOBS and almost all engineering consulting providing companies 

7How is your course going to help me in my path to MS or PhD?

Precast concrete design is cutting edge technology and there are always new things coming up related precast structure. One can surely delve in behavior of precast buildings for their research & thesis topics.

8How is this course going to help you get a job?

The course can help you create a niche for yourself in blooming precast industry in India & across the world. It will also help you understand the structural behavior of the building in general. Many of the companies seek for engineers with prior knowledge of precast. 


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