SOFTWRAE TRAINING PRESENTATION ON STRUCTURAL ANAYSIS AND DESIGN OF G + 5 STOREY BUILDING USING BENTLEY STADD PRO SOFTWARE

1. SOFTWARE TRAINING PRESENTATION
ON
STRUCTURAL ANAYSIS AND DESIGN OF G + 5 STOREY BUILDING
USING BENTLEY STADD PRO SOFTWARE
DEPARTMENT OF CIVIL ENGINEERING
1
SUBMITTED BY-
SUNIL KUMAR MEENA

2. CONTENTS
 INTRODUCTION ABOUT INSTITUTE
 INTRODUCTION ABOUT SOFTWARE
 INTRODUCTION ABOUT PROJECT
 MODELLING OF STRUCTURE
 LOADS AND DEFINITIONS
 ANALYSIS AND POST PROCESSING
 DESIGN OF STRUCTURE
 DESIGN OF FOUNDATION USING STADD PRO
 CONCLUSION
 REFERENCES
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3. INTRODUCTION ABOUT INSTITUTE
INTRODUCTION TO INSTITUTE
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4. INTRODUCTION TO STADD PRO
STAAD is the abbreviation for Structural Analysis and Design. STAAD.Pro is one of the popular software that is used for analysing &
designing structures like – buildings, towers, bridges, industrial, transportation and utility structures. Designs may include any building
structures like tunnels, culverts, bridges, piles, petrochemical plants; and building materials like timber, concrete, steel, cold-formed
steel, and aluminium.
STAAD or STAAD.Pro was developed by Research Engineers International at Yorba Linda, CA in 1997.
To get rid of the boring & time-consuming manual procedures Structural Engineers started using automated software STAAD.Pro.
FEATURES OF STADD PRO
1. Import/Export of Auto Cad 2D/3D files to start model.
2. Model Development (Graphical as well as Input Editor)
3. Model Visualization on screen.
4. GUI based modelling.
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INTRODUCTION ABOUT SOFTWARE

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5. Isometric and Perspective view and 3D shapes.
6. Analysis and design tool.
7. Advanced automatic load generation facilities for area, floor and moving loads.
8. Input File/Output File
9. Results as per Indian and other standards.
10. Report Generation.
Fig. - Starting Page of Stadd Pro

6. INTRODUCTION ABOUT PROJECT 6
INTRODUCTION TO STRUCTURE
This project work involves analysis and design of reinforced concrete framed structure of multi-storied (G+ 5) residential building
located in seismic zone IV using analysis and design software STAAD Pro as per Indian standard codes of practice.
The total area of the building is 166.52 sqm where length of the building is 22.149m and width of the building is 7.518m.
BASIC DETAILS OF THE STRUCTURE
It is a residential building located in Seismic Zone 4.
Number of storeys G+5
Floor Height 3m
Height of Building 19.75m
Shape of Building Rectangular
Type of Wall Brick Wall
Type of Supports Fixed Supports
Table – Description of the Building

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CODES USED
IS 875 (Part 1) - 1987 Code of Practice for Dead Loads
IS 875 (Part 2) - 1987 Code of Practice for Imposed Loads
IS 456 : 2000 Code of Practice for Plain and Reinforced Concrete
IS 13920 : 1993 Code of Practice for Ductile Detailing
Table – Codes Used
GRADE OF MATERIAL USED
Concrete Grade – M25
Steel Grade – Fe500

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Fig. – Centre Line Plan of the Structure

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MODELLING OF STRUCTURE
Modelling of 3-D frame is shown in figures step by step. It includes:
1. Modelling of frame
2. Assigning supports
3. Assigning properties to structure
4. Loads and Definitions
MODELLING
Modelling means creating a structural model of the structure in staad. You should
have knowledge of engineering drawing and building drawings. Modelling also
contains loading on structure, and this will be given by client in some cases. First
of all with translational repeat option we make the plan by defining the axis of the
plane.
Translational Repeat
This option allows us to copy (or repeat) the entire structure or a portion of the
structure in a linear direction. We may generate one or several copies of the
selected components.
Fig. – Translational Repeat dialog box

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Fig. – Generated Structure Frame
ASSIGNING SUPPORTS
This allows the user to define the support conditions of the
structure. Supports are assigned to all columns of the frame.
Normally fixed supports are given. Supports are specified as
PINNED, FIXED, or FIXED with different releases.
Fig. – Supports dialog box

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Fig. – Generation of Structure with Supports
ASSIGNING PROPERTIES TO STRUCTURE
This allows the user to provide the cross-sectional properties of members with
or without the material specifications. Properties dialogue box allows the user
to assign circular, rectangular, trapezoidal, Tee, general, etc. cross-sections to
the frame members. In the considered building rectangular cross-sections to
the members have been assigned.
Fig. – Property dialog box

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Fig. – Assigned Properties Fig. – 3D Rendered View of Structure after assigning Properties

13. LOADS AND DEFINITIONS 13
LOAD CALCULATION ON STRUCTURE
Various types of loading in STADD PRO is given below:
1.SEISMIC LOADING
2.DEAD LOAD
3.LIVE LOAD
SEISMIC LOADING
It means the application of an earthquake-generated agitation to a building
structure or its model. It happens at contact surfaces of a structure either with the
ground, or with adjacent structures, or with gravity waves from tsunami. Seismic
load for the considered building is applied in both X and Z direction. To assign a
seismic load in a structure there are two steps. First you have to define the seismic
load and then you have to assign the load to the structure.
Fig – Seismic Parameters Dialog Box

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Fig. – Seismic Forces acting in X – direction Fig. – Seismic Forces acting in Z – direction

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DEAD LOAD
All permanent constructions of the structure form the dead loads. The dead load comprises of the weights of walls, partition
walls, floor finishes, load of slab and the other permanent constructions in the buildings. The dead load loads can be calculated
from the dimensions of various members and their unit weights. Dead load includes self-weight, floor load and member loads.
Dead load is always applied in –ve Y-axis.
(i) SELF WEIGHT
Self-weight is the load on a structure imposed by its own weight. Self-weight is directly influenced by the material density of the
structure.
Self weight is to be assigned to the whole structure.
Fig.- Self weight acting on structure

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(ii) WALL LOAD
This load is applied in the form of Member Load.
Wall Load Calculations:
Table – Wall Load Fig. – Wall Load dialog box for Loading
Main Wall of Floors (= 0.228 X 3 X
18 X 1.5)
18.52 KN/m
Partition Wall of Floors (= 0.1143 X 3
X 18 X 1.5)
9.26 KN/m
Parapet Wall (= 0.230 X 1 X 18 X
1.5)
6.21 KN/m
Load on Balcony (= 5KN/m2 X 2.134) 10.67 KN/m
Load on Landing Beam of Stair Case
(= 6.142 X 1.5}
9.213 KN/m

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Fig. – Wall Load acting as Member Load
Fig. - Load acting on Landing Beam of Stair Case

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Thickness of Slab 140mm
Dead Load of Slab (= 0.140 X 25)
3.5 KN/m2
Floor Finish Load 1.5 KN/m2
Total Load 5 KN/m2
Load of Sunk Slab in Toilets (= 0.3 X 6 X
1.5)
2.7 KN/m2
Total Dead Load on Slab (S1) [(= 3 X
0.1143 X 3.048 X 18 X 1.33/ 5.486 X
3.048) + 5 + 2.7]
9.2 KN/m2
Total Dead Load on Slab (S2) [(= 3 X
0.1143 X 7.544 X 18 X 1.33/ 5.486 X
4.470) + 5 + 2.7]
9.23 KN/m2
Total Dead Load on Slab (S3) [(= 3 X
0.1143 X 2.692 X 18 X 1.33/ 4.470 X
3.327) + 5 + 2.7]
9.19 KN/m2
Total Dead Load on Slab (S4) 5 KN/m2
Total Dead Load on Slab (S5) [(= 3 X
0.2286 X 7.5948 X 18 X 1.33/ 4.470 X
4.521) + 5]
11.17 KN/m2
Table – Slab and Floor Loads
(iii) LOAD ON SLAB
This load is applied in the form of FLOOR LOAD.
Load on slab calculation:

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Fig. – Slab Load distribution on Floor Fig. – Slab Load on First Floor

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Fig. - Slab Load Calculation on Excel sheet (Part 1) Fig. - Slab Load Calculation on Excel sheet (Part 2)

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LIVE LOAD
Live load is applied to structure according to load coming on it in the form of people or any other form in each floor in the form of
udl. Live load is produced by the intended use or occupancy of a building including the weight of movable partitions, distributed
and concentrated loads, load due to impact and vibration and dust loads.
This load is applied in the form of surface load. The load values are taken from IS 875 ( part 2 ) - 1987:
Rooms 2 KN/m2
Kitchen 2 KN/m2
Toilets 2 KN/m2
Balconies 3 KN/m2
Dining Area 3 KN/m2
Live Load on Roof 0.75 KN/m2
Table – Live Load Fig. – Live Load distribution

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LOAD COMBINATIONS
A load combination results when more than one load type acts on the structure. Building codes usually specify a variety of load
combinations together with load factors (weightings) for each load type in order to ensure the safety of the structure under different
maximum expected loading scenarios. The load combinations have been created with the command of auto load combinations. By
selecting the Indian code we can generate loads according to that and then adding these loads. These combinations do not required
to be assigned on members. Hence all the loads are assigned on the structure we will move towards forward step.
Fig. – Auto Load Combination dialog box Fig. – Different Load Combinations

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ANALYSIS AND POST PROCESSING
STRUCTURE ANALYSIS
The STAAD PRO offers STAAD engine for general purpose Structural Analysis and Design. The STAAD analysis engine performs
analysis and design simultaneously. However, to carry out the design, the design parameters too must be specified along with
geometry, properties, etc. before you perform the analysis. Also, note that you can change the design code to be followed for design
and code check before performing the analysis / design. The STAAD PRO provides the user with the appropriate and the most
economic design of the members as prescribed in the design command. Along with the design result reports, STAAD PRO itself
analysis the structure and give warnings about any of the discrepancies in the member parameters. The structure will be analysed to
the loads and this command will also show if there is any warning or error. The STAAD analysis engine performs analysis and design
sequentially with a single click.
Fig. – Analysis Commands dialog box

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Fig. – Analysis Results

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POST PROCESSING
We can see results in this mode. Post processing mode in STAAD will provide you the results of the analysis you have carried out. The
support reactions, support displacement, bending moments, shear forces, axial forces, torsion can be seen and the structure can be
designed for the forces and moments occurring in the governing load combinations. The figures shown below are under Dead Load.
We can also see figures under Live Load or other which we want.
Fig. – Bending Moments on each Beam and Column Fig. – Reactions on Supports in Y direction

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DESIGN OF STRUCTURE
CONCRETE DESIGN
STAAD has capabilities of performing concrete design based on limit state method of IS 456 : 2000. STAAD.Pro Concrete Design is
started by selecting the menu option from STAAD.Pro. When this is done a link file is produced that contains the basic data for
creating concrete designs. This data is created each time the program is started. Additional data that is created during the use of the
program is stored, such as the members, envelopes, design groups and design briefs is stored in a persistent file. This means that if
the program is closed and re-opened at a later date, the data remains available and does not need to be re-entered.
DESIGN PARAMETERS
Clear Cover
For beam members - 25 mm
For column members – 40 mm
Fc – Compressive strength of concrete = 25 Mpa
Fymain – yield strength of main reinforcement steel=500 Mpa
Fysec - yield strength of shear reinforcement = 500 Mpa
Fig. – Design Parameters dialog box

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Fig. – Design Commands Dialog box

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B E A M N O. 1 D E S I G N R E S U L T S
M25 Fe500 (Main) Fe500 (Sec.)
LENGTH: 5486.0 mm SIZE: 500.0 mm X 600.0 mm COVER: 30.0 mm
SUMMARY OF REINF. AREA (Sq.mm)
----------------------------------------------------------------------------
SECTION 0.0 mm 1371.5 mm 2743.0 mm 4114.5 mm 5486.0 mm
----------------------------------------------------------------------------
TOP 1205.96 480.25 480.25 480.25 1065.83
REINF. (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm)
BOTTOM 514.69 480.25 480.25 480.25 480.25
REINF. (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm) (Sq. mm)
----------------------------------------------------------------------------
SUMMARY OF PROVIDED REINF. AREA
----------------------------------------------------------------------------
SECTION 0.0 mm 1371.5 mm 2743.0 mm 4114.5 mm 5486.0 mm
----------------------------------------------------------------------------
TOP 6-16d 4-16d 4-16d 4-16d 6-16d
REINF. 1 layer(s) 1 layer(s) 1 layer(s) 1 layer(s) 1 layer(s)
BOTTOM 7-10d 7-10d 7-10d 7-10d 7-10d
REINF. 1 layer(s) 1 layer(s) 1 layer(s) 1 layer(s) 1 layer(s)
SHEAR 2 legged 8d 2 legged 8d 2 legged 8d 2 legged 8d 2 legged 8d
REINF. @ 215 mm c/c @ 215 mm c/c @ 215 mm c/c @ 215 mm c/c @ 215 mm c/c
----------------------------------------------------------------------------

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SHEAR DESIGN RESULTS AT DISTANCE d (EFFECTIVE DEPTH) FROM FACE OF THE SUPPORT
-----------------------------------------------------------------------------
SHEAR DESIGN RESULTS AT 812.0 mm AWAY FROM START SUPPORT
VY = 133.90 MX = -3.29 LD= 14
Provide 2 Legged 8d @ 215 mm c/c
SHEAR DESIGN RESULTS AT 812.0 mm AWAY FROM END SUPPORT
VY = -133.65 MX = -0.56 LD= 12
Provide 2 Legged 8d @ 215 mm c/c
Fig. – Concrete Design of Beam No. - 1 Fig. – Concrete Design of Column No. 75

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DESIGN OF FOUNDATION USING
STADD PRO
FOUNDATION DESIGN
Get efficient foundation design and documentation using plant-specific design tools, multiple
design codes with U.S. and metric bar sizes, design optimization, and automatic drawing
generation. STAAD Foundation Advanced provides you with a streamlined workflow through
its integration with STAAD.Pro or as a stand-alone application. You can design virtually any
type of foundation, from basic to the most complex.
DESIGN PARAMETERS
When you begin a new project, only the Project Info, Foundation Plan, Loads and Factor and
Job Setup groups will appear in the Main Navigator pane. The first three groups allow you to
specify the physical model upon which the foundation design is to be performed. This data is
global to all jobs which are created within a single project file.
Fig. – Main Navigator dialog box

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Fig. – Concrete and reinforcement parameters Fig. – Cover and Soil parameters Fig. – Foundation Load Case

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Fig. – Column Reaction Fig. – Column Position

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Fig. – Elevation and Plan of Foundation

34. CONCLUSION
During this major project we were successfully able to analyse and design various members of the building subjected to different
combinations of loads. Relevant recommendations and guidelines from various IS codes were also taken care of.
STAAD PRO has the capability to calculate the reinforcement needed for any concrete section. The program contains a number of
parameters which are designed as per IS 456 : 2000. Beams are designed for flexure, shear and torsion.
Design for Flexure:
Maximum sagging (creating tensile stress at the bottom face of the beam) and hogging (creating tensile stress at the top face)
moments are calculated for all active load cases at each of the above mentioned sections. Each of these sections are designed to
resist both of these critical sagging and hogging moments. Where ever the rectangular section is inadequate as singly reinforced
section, doubly reinforced section is tried.
Design for Shear:
Shear reinforcement is calculated to resist both shear forces and torsional moments. Shear capacity calculation at different sections
without the shear reinforcement is based on the actual tensile reinforcement provided by STAAD program. Two-legged stirrups are
provided to take care of the balance shear forces acting on these sections.
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Design Beam Output:
The default design output of the beam contains flexural and shear reinforcement provided along the length of the beam.
Column Design:
Columns are designed for axial forces and biaxial moments at the ends. All active load cases are tested to calculate
reinforcement. The loading which yield maximum reinforcement is called the critical load. Column design is done for square
section. Square columns are designed with reinforcement distributed on each side equally for the sections under biaxial
moments and with reinforcement distributed equally in two faces for sections under uni -axial moment. All major criteria for
selecting longitudinal and transverse reinforcement as stipulated by IS: 456 have been taken care of in the column design of
STAAD.

36. REFERENCES
1. DR. B.C PUNMIA. ASHOK KUMAR JAIN, ARUN KUMAR JAIN "LIMIT STATE DESIGN OF REINFORCED CONCRETE".
2. BUREAU OF INDIAN STANDARDS IS 875 (PART 1 & PART 2) – 1987 CODE OF PRACTICE FOR IMPOSED AND DEAD
LOADS.
3. BUREAU OF INDIAN STANDARDS IS 456:2000 CODE OF PRACTICE FOR PLAIN AND REINFORCED CONCRETE.
4. BUREAU OF INDIAN STANDARDS IS 13920-1993 CODE OF PRACTICE FOR DUCTILE DETAILING".
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37. THANK YOU
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