NALYSIS OF COMPOSITE BUILDING STRUCTURE

1. A
PRESENTATION
On
ANALYSIS OF HIGH RISE COMPOSITE BUILDING SUBJECTED TO CYCLONIC WIND LOADS
Presented By
Rushikesh Pingale (MITU21MTSE0034)
Under the Guidance of
Prof. Aniket D. Patil
M.Tech Structural Engineering
Department of Civil Engineering
MIT School of Engineering & Sciences, MIT-ADT University
Loni Kalbhor, Pun

2. FLOW OF PRESENTATION
❖ AIM
❖ OBJECTIVES
❖ CONCEPTUALIZATION
❖ PROBLEM STATEMENT
❖ METHODOLOGY
❖ REVIEW OF PREVIOUS STUDIES
❖ CRITICAL APPRAISAL
❖ SOFTWARE VALIDATION
❖ ANALYSIS PARAMETERS
❖ SOFTWARE ANALYSIS
❖ RESULTS OBTAINED
❖ CONCLUDING REMARKS
❖ RECOMMENDATIONS
❖ FUTURE SCOPE
2

3. AIM
The aim of this research investigation is to analyze the
effect of cyclonic wind load on Composite High Rise
Building in Cyclonic Zone for symmetrical building
structure.
3

4. OBJECTIVE
❖ To model high rise composite building structure.
❖ To perform static wind analysis for symmetrical building
structure with theoretical and actual cyclonic wind speed.
❖ To evaluate the storey displacement, storey drift and
storey stiffness of the structure.
❖ To identify the sustainability of composite structure in
actual cyclonic conditions.
4

5. CONCEPTULIZATION
To model high rise composite building structure in ETABS software
located on the western coast of India having Terrain Category I and
perform static wind analysis for symmetrical building structure
with theoretical (IS Code) and actual cyclonic wind speed (Cyclone
Biparjoy). After analysis check the evaluation parameters such as
the storey displacement, storey drift and storey stiffness of the
structure. Finally, identify the sustainability of composite structure
in actual cyclonic conditions.
5

6. PROBLEM STATEMENT
To evaluate a 20m x 15m G+16 high rise composite
building structure located at Bhuj, Gujarat on Terrain
Category I.
6

7. 7
Typical Floor Plan

8. METHODOLOGY
8

9. REVIEW OF PREVIOUS STUDIES
9
Sr. No. Title Year of Publication Project Findings
1.
Effect of Wind Load on Tall
Buildings in Different Terrain
Category
2022
Highest values are
found in terrain
category I, while the
lowest values are
found in terrain
class IV.

10. 10
Sr. No. Title Year of Publication Project Findings
2.
Effect of Wind Load on High Rise
Structure
2015
Observations
revealed increased
column
reinforcement,
heightened stresses
in framed beams,
and a gradual rise in
shear forces on
longitudinal
members,
emphasizing the
need for enhanced
stiffness in wind-
resistant structures

11. 11
Sr. No. Title Year of Publication Project Findings
3.
Effect of Wind Load on Tall
Buildings in Different Terrain
Category
2022
Terrain type 4
exhibits the least
impact on shear
forces and bending
moments, implying
that structures in
this category are
comparatively less
affected by wind
forces

12. 12
Sr. No. Title Year of Publication Project Findings
4.
Analysis of Wind Load Effects on
R.C Structure Resting on Flat and
Sloping Ground by Using ETABS
2023
Structures on
sloping ground
experience higher
maximum
displacement,
particularly with a
10º slope, leading to
potential critical
situations.

13. 13
Sr. No. Title Year of Publication Project Findings
5.
Comparative Study on Wind
Analysis of Multi-story RCC and
Composite Structure for Different
Plan Configuration
2016
Composite
structures, while
more susceptible to
wind effects,with
rectangular shapes
being more suitable
than U-shaped
buildings which
demonstrate larger
displacement and
lower stiffness.

14. 14
Sr. No. Title Year of Publication Project Findings
6.
Study of Wind Analysis of Multi
Story Composite Structure for Plan
Irregularity
2016
Rectangular
structures are
recommended for
wind-prone zones,
offering large
stiffness and
minimal
displacement, while
caution is advised
against U-shaped
structures due to
their abrupt
displacement
increase with height.

15. 15
Sr. No. Title Year of Publication Project Findings
7.
Effect of Wind Load on Low,
Medium and High Rise Buildings
in Different Terrain Category
2018
For medium and
high-rise buildings,
higher drift values in
terrain category 1
suggest increased
wind effects, with
the maximum values
observed
consistently in this
terrain category,
while terrain
category 4
demonstrates the
least wind impact.

16. 16
Sr. No. Title Year of Publication Project Findings
8.
Study of Seismic and Wind Effect
on Multi Storey RCC, Steel and
Composite Building
2013
Composite
structures exhibit
satisfactory
displacement within
permissible limits
for wind conditions.
The economic
analysis
demonstrates the
cost-effectiveness of
composite
structures, with a
significant reduction
in cost compared to
RCC buildings.

17. 17
Sr. No. Title Year of Publication Project Findings
9.
Mitigating wind induced effects on
tall buildings through
aerodynamic modifications
2020
This study explores
aerodynamic
modifications for
mitigating wind
loads on tall
composite buildings,
with 25% opening,
effective in reducing
drag, lift, and
pressure coefficients,
enhancing structural
safety and
minimizing
economic
consequences

18. 18
Sr. No. Title Year of Publication Project Findings
10.
Wind Analysis of a Multi Storied
Structure
2021
Recommends RCC
structures for their
stiffness and stability
in tall buildings,
highlighting the
importance of
modifying exposed
building space to
reduce wind
pressure.

19. 19
Sr.
No.
Title Year of Publication Project Findings
11.
The Effect of Wind Loads on the
Seismic Performance of
Tall Buildings
2018
The study reveals that design
wind loads can influence the
seismic performance of high-
rise dual system buildings,
emphasizing the need for
detailed performance-based
seismic evaluations, even in
cases where wind demands
control the design of the
lateral load-resisting system

20. 20
Sr. No. Title Year of Publication Project Findings
12.
Effect of Shape of Tall Buildings
due to Wind Loading
2017
Rounding the corners
of structures
significantly reduces
bending moments,
axial forces, and roof
displacement, with
the most effective
impact observed in
circular and square
structures,
showcasing the
importance of
building shape in
mitigating wind
loads.

21. 21
Sr. No. Title Year of Publication Project Findings
13.
Effect of Wind Loads on High Rise
Building in Different Zones
2021
The comparison
between wind
loading and seismic
effects on building
structures reveals
varying changes in
shear force, moment,
torsion, and axial
force, while wind
loading effects are
comparatively less
pronounced.

22. 22
Sr. No. Title Year of Publication Project Findings
14.
Effect of Wind Loads on Tall
Building in Different Terrain
Categories
2015
The deflection on the
top storey increases
with model height
due to wind load,
with the highest
percentage
difference in
deflection between
the top and ground
storeys observed at
the 3rd storey across
all three models.

23. 23
Sr. No. Title Year of Publication Project Findings
15.
Effects of Increased
Wind Loads on Tall
Buildings
2003
he findings reveal
significant increases
in lateral deflections,
potentially causing
structural concerns,
human discomfort,
architectural
damage, and
maintenance issues,
emphasizing the
importance of
considering changing
climate conditions in
structural analysis.

24. CRITICAL APPRAISAL
24
Research on cyclonic wind effects on composite structures is crucial
due to the heightened vulnerability of tall buildings to cyclonic wind
loads. Understanding the structural behavior, assessing parameters
like story drift and shear, and developing effective design strategies
are imperative for ensuring the safety, durability, and economic
viability of composite high-rise buildings in cyclonic-prone regions

25. SOFTWARE VALIDATION
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26. SOFTWARE VALIDATION RESULTS
24
Parameters
Researcher’s
Result
ETABS
Results
Percentage
Difference
Storey
Displacement in X
direction (mm)
0.045 0.043 4.44%
Storey
Displacement in Y
direction (mm)
0.050 0.051 2%

27. SOFTWARE VALIDATION RESULTS
24
Parameters
Researcher’s
Result
ETABS
Results
Percentage
Difference
Storey Drift in X
direction
0.000199 0.0002 1.01%
Storey Drift in Y
direction
0.000182 0.00018 1.1%

28. ETABS MODEL
25
Typical Plan in Building

29. ANALYSIS PARAMETERS
26
Building Parameters
Location Bhuj, Gujarat
Height of Building 51000 mm
Grade of Concrete M30
Grade of Steel Fe500
Beam Size ISMB 450
Column Size
ISHB 250
(Encased Section)
Slab Thickness 125 mm
Loading Parameters
Wall Load 23.875 kN/m
Floor Finish Load 1.5 kN/m
Live Load 3 kN/m
Theoretical Cyclonic Speed 50 m/s
Actual Cyclonic Speed 53 m/s

30. SOFTWARE ANALYSIS
26
Mode
Time
Period
UX UY RZ
1 2.263 0.8711 0 0
2 2.234 0 0.8632 0
3 1.879 0 0 0.8735
Mode
Time
Period
UX UY RZ
1 2.263 0.8711 0 0
2 2.234 0 0.8632 0
3 1.879 0 0 0.8735
Theoretical Cyclonic Speed Actual Cyclonic Speed

31. RESULTS OBTAINED
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32. 26

33. 26

34. 26
CONCLUDING REMARKS
 No changes in Time Period when actual cyclonic speed is applied.
 Displacement, Drift and Shear values at top storey are within
permissible limits under both speeds.
 Composite Structure located at Cyclonic Regions can sustain the
Cyclonic Speeds.

35. 26
RECOMMENDATIONS
 Symmetric Composite Structures can be recommended to be built
in cyclone prone regions considering their time period, storey
displacement and storey drift being within their permissible
limits.

36. 26
FUTURE SCOPE
 Use of innovative materials, such as high-performance
composites or smart materials, to improve the structural
performance and durability of buildings in cyclonic regions.
 Incorporate the latest advancements in wind engineering,
including computational fluid dynamics (CFD) simulations for a
more accurate representation of wind loads.

37. 26
THANKYOU