ANALYSIS OF G+2 MONO-COLUMN BUILDING FOR DIFFERENT PLAN CONFIGURATIONS WITH THE SAME PLAN AREA USING STAADPRO

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 10 Issue: 03 | Mar 2023 www.irjet.net p-ISSN: 2395-0072
ANALYSIS OF G+2 MONO-COLUMN BUILDING FOR DIFFERENT PLAN
CONFIGURATIONS WITH THE SAME PLAN AREA USING STAADPRO
Mr. B. Venkatesh 1, Mr. M. Jagadeesh 2, Ms. B. Likhitha 3
1Assistant professor, Department of civil engineering, SVECW, Andhra Pradesh, India.
2Assistant professor, Department of civil engineering, SVPEC, Andhra Pradesh, India.
3B. tech student, Department of civil engineering, SVECW
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Abstract - During the monsoon season, due to the floods,
water reaches the ground story of the building and causes a
problem for the occupants of the building. So, to avoid these
problems, we use mono-column structures. In this geometry
such as rectangular, pentagonal, and circular are analyzed.
The building plans are drawn in Auto-cad 2023 software.
The plan area of each mono-column building was taken as
1000 sq. ft. Then modeling and analysis were carried out
using the Staad-pro software as per Indian standards. The
analysis for buildings was carried-out under seismic zone III.
The cross-section for each mono-column was taken as a
square of side 1m. The parameters such as displacement,
bending moment, and shear force for each building's
structural components are studied and later compared.
Key Words: Auto-Cad, Design of building, Equivalent
static analysis, Mono-column structure, Seismic
analysis, Staad-pro.
1. INTRODUCTION
In India some parts of the country like Andhra Pradesh,
Tamil Nadu, and West Bengal experience cyclones, which
are often accompanied by heavy rainfall leading to flooding
in the monsoon season. During such cases, the water level
reaches approximately the first floor of the building. One of
the best solutions for this problem is to rise the living area
higher from the ground level. So, the mono-column
buildings are very effective to control floods.
And also, with the increase in population, the availability of
land decreases, and the cost of land increases. The total
cost of the construction includes the cost of building and
land cost also. So, to reduce the cost of the building by
reducing the foundation cost and excavation cost, mono-
column structures are constructed. As they are resting on a
single column, the area required for the foundation is less
so the foundation cost as well as the excavation cost is also
reduced. They require less ground space as require less
area for providing the foundation. And the remaining
spacing is useful to provide for parking.
1.1 Monocolumn Structure
A building that is supported on a single column is
called a mono-column structure. They require less ground
space as required less area for providing the foundation so
that more space is available for parking. A structure
supported on a single column provides a better
architectural view compared to a structure supported on
many columns. They are also unique.
1.2 Objectives of the Present Project
1. To develop plans for the different shapes of the
same plan area.
2. To analyze a model of the Mono column structure
for different plan configurations with the same
plan area such as rectangle, circular, and the
pentagon in Staad-Pro software.
3. To analyze the structure as per Indian standards.
4. To compare three different mono-column
buildings based on analysis in the STAAD-pro
software.
2. LITERATURE REVIEW
Madireddy Satyanarayana [2016]: They take this
project to analyze the design of mono-column by using
different code provisions available. They draw a layout
plan of the proposed building drawn by using AUTO CADD
2010. The structure consists of six floors including the
ground floor, with each floor having one house. The
staircase must be provided separately. The planning in
their study is done as per Indian standard code provisions.
Frames are analyzed by using various textbooks as
references Using this so many standard books analyses of
bending moment, shear force, deflection, end moments,
and foundation reactions are calculated are given in this
paper.
T. Subramani (2019): The purpose of this study is to lay
out a whole building relaxation on a single-column design.
This paper finds that the express boost in population and
scarcity of land tends to the progress of construction
technology and high-rise structures. This building is
composed. A single-column structure is out of the ordinary
mono-column structure.
© 2023, IRJET | Impact Factor value: 8.226 | ISO 9001:2008 Certified Journal | Page 209

Basavaraju S N (2020): This paper describes that from
static and dynamic analysis, the Storey displacement,
Storey drift, Storey shear, and overturning moment of all
shapes increase as we go to a higher seismic zone. 5.
Storey displacement & Storey drift are less in circular
shape structure and more in rectangular shape mono
column structure in all seismic zones of India. According to
this paper story shear, overturning moment, and story
stiffness are minimum in square shape structures and
maximum in triangular shape mono column structures in
all seismic zones of India. The Time-period is more for
rectangular shapes and less for circular shapes and mono-
column structures given by conducting analysis.
Gomasa Ramesh (2021): In this study multi-story
building with a single-column construction has been
successfully engineered to withstand all loads, including
earthquake loads. In this study, they state that under static
loading conditions, RCC columns have adequate results.
STAAD-Pro advanced software provides us with a
platform for analyzing and designing structures that is
fast, reliable, simple to use, and accurate. The ultimate
strength and serviceability of the building must be met by
the structural design.
3. METHODOLOGY
The methodology of our project is shown in the below flow
chart.
3.1Loads And Load Combinations
The loads acting on the structure are calculated based
on the IS 875-1987(part 1 and part 2). The IS 875-1987 is
a code of practice for design loads (other than earthquake
loads) that deals with the magnitude of such loads that are
being used for designs in India. And the earthquake loads
in our study are calculated as per IS 1893-2002. Load
combinations are taken as per Table no. 18 from IS 456-
2000.
3.2Structural Analysis
The models of G+2 story for mono-column buildings
such as rectangular, pentagonal, and circular are created,
investigated, and configured using Staad-pro V8i software.
Auto-cad 2023 was used for the planning of building
drawings. The building is arranged in zone III. The seismic
zone coefficient is taken as 0.16 according to IS code.
4. ANALYSIS OF MONO-COLUMN STRUCTURE
Specifications of the mono-column buildings are shown in
the table below.
Table -1: Primary data
Description Specification
Number of stories G+2
Story height 3.0m
Height of building 9.0m
Beam size 0.45m*0.6m
Column size 0.45m*0.6m
Monocolumn size 1.0m*1.0m
Slab thickness 150mm
Zone III
4.1Structural plans of building
The structural plans are further required to analyze in the
Staad pro software.
Fig -1: Rectangular structural plan
Fig -2: Pentagonal structural plan

Fig -3: Circular structural plan
4.2 3D view of buildings
The following is the 3D view of mono-column buildings.
Fig -4: Rectangular frame
Fig -5: Pentagonal frame
Fig -6: Circular frame
4.3 Analysis result
The results obtained from the analysis are displacement,
bending moment, and shear force.
4.3.1Displacement
The displacement produced by the rectangular,
pentagonal, and circular mono-column buildings occurs as
shown below.
Fig -7: Displacement of the rectangular structure
Fig -8: Displacement of pentagonal structure

Fig -9: Displacement of the circular structure
4.3.2Bending Moment
The bending moment produced by the rectangular,
pentagonal, and circular mono-column buildings occurs as
shown below.
Fig -10: Bending moment of the rectangular structure
Fig -11: Bending moment of pentagonal structure
Fig -12: Bending moment of the circular structure
4.3.3Shear Force
The shear force produced by the rectangular, pentagonal,
and circular mono-column buildings occurs as shown
below.
Fig -13: Shear force of rectangular structure
Fig -14: Shear force of pentagonal structure

Fig -15: Shear force of circular structure
5. RESULTS AND DISCUSSIONS
In this chapter, the results which are obtained from the
analysis are discussed.
5.1Displacement
Displacement of mono-column buildings such as
rectangular shape buildings, pentagonal shape buildings,
and circular shape buildings are obtained by analyzing as
shown below.
 Maximum displacement occurs in the rectangular
shape mono-column building due to the action of
loads is 83.78mm.
 Maximum displacement occurs in the pentagonal
loads is 42.52mm.
 Maximum displacement occurs in the circular
loads is 41.07mm.
Chart -1: Displacement of building
5.2 Bending Moment
Bending moment developed in beams of mono-column
buildings such as rectangular shape, pentagonal shape, and
circular shape occur as follow.
Chart -2: Bending moment in top-story beams
Chart -3: Bending moment in middle-story beams
Chart -4: Bending moment in bottom-story beams
Bending moment developed in columns of mono-column
buildings such as rectangular shape, pentagonal shape, and
circular shape occur as follow.

Chart -5: Bending moment in top story columns
Chart -6: Bending moment in middle story columns
Chart -7: Bending moment in bottom-story columns
5.3Shear Force
Shear force in beams of mono-column buildings such as
rectangular shape, pentagonal shape, and circular shapes
occur as follows.
Chart -8: Shear force in top-story beams
Chart -9: Shear force in middle-story beams
Chart -10: Shear force in bottom-story beams
Shear force developed in columns of mono-column
buildings such as rectangular shape, pentagonal shape,
and circular shapes occurs as follows.

Chart -11: Shear force in top story columns
Chart -12: Shear force in middle-story columns
Chart -13: Shear force in bottom-story columns
6. CONCLUSIONS
We prepared the building plans using Auto-cad software
and then analyzed G+2 mono-column buildings using the
Staad-pro software.
The following conclusion can be drawn out from the
analysis:
Displacement:
Displacement of the building occurs maximum in case of
rectangle shape and minimum in case of circular shape
building.
 Maximum displacement occurs in the rectangular
shape building is 83.785 mm. Displacement in this
building is 102% greater than the displacement in
the circular shape mono-column building.
 The maximum displacement that occurs in the
pentagonal shape building is 42.52 mm.
Displacement in this building is 2% greater than
the displacement in the circular shape mono-
column building.
 Maximum displacement occurs in the circular
shape building is 41.079 mm
Bending moment and shear force in beams:
 Bending moment and shear force in longitudinal
beams occur maximum in the case of circular
shape buildings and minimum in the case of
pentagonal shape buildings.
 Bending moment and shear force in lateral beams
occur maximum in the case of rectangular shape
buildings and minimum in the case of circular
shape buildings.
Bending moment and shear force in columns:
 The bending moment and shear force of center
columns occur maximum in the case of rectangular
shapes and less in the case of circular shapes in the
top and middle stories of the building.
 The bending moment and shear force of end
columns occur maximum in the case of rectangular
shapes and less in the case of pentagonal shapes in
the top and middle stories of the building.
 The bending moment and shear force of mono-
column occur maximum in the case of rectangular
shapes and less in the case of pentagonal shapes in
the bottom story of the building:
 The bending moment is 2717kN-m and the shear
force is 387kN in a mono-column of rectangular
shape building. The bending moment and shear
force in the mono-column of a rectangular shape
building are134% & 133% greater than the
bending moment and shear force in the mono-
column of a pentagonal shape building
respectively.
force is 166kN in the mono-column of the
pentagonal shape building.
force is 193kN in a mono-column of circular shape

building. The bending moment and shear force in
the mono-column of circular shape building are
6% and 16% greater than the bending moment
and shear force in the pentagonal shape building
respectively.
So finally, the relative maximum displacement of the
building, bending moment, and shear force in the mono-
column occur less in the case of a pentagonal shape
building compared to other shapes of the building.
REFERENCES
[1] IS 875 code-book (Part-1): 1987 Indian Standard Code
of Practice for Design Loads (Other Than Earthquake)
for Buildings and Structures, part-1 dead loads - unit
weights of building materials and stored materials
(Second Revision)
[2] IS 875 code-book (Part 2): 1987 Indian Standard Code
of Practice for Design Loads (Other Than Earthquake)
for Buildings and Structures, Part 2 Imposed Loads.
(Second Revision)
[3] IS 1893 code-book (Part 1): 2002 Indian Standard
Criteria for Earthquake Resistant Design of Structures,
Part 1 General Provisions and Buildings, (Fifth
Revision)
[4] Thejus Sreehari, Mrs. Shilpa Valsakumar 2022
“Analysis and Design of Mono Column Building”
Volume 10, Issue 06, Page no:147-151(IJERT)
[5] Sijin Johnson, Indu Susan Raj 2022 ”Diagrid Mono
Column Structures with Different Geometry in Plan: A
Review” Volume 10, Issue 07, Page no:369-
372(IJRASET)
[6] Gomasa Ramesh 2021“Design and Analysis of
Residential Building using STAAD-Pro” EISSN 2319–
7765(Indian Journal of Engineering)
[7] Ashish Thapak, Kamlesh Kumar Choudhary 2021
“Earthquake and wind analysis of a multi-Storey
building using STAAD-Pro” (IRJDET)
[8] Basavaraju S N, S Kavitha 2020 “Comparative analysis
of multi-story mono column structures for different
plan configuration with same plan area”
[9] T. Subramani, S. Priyanka, E. Sahul Hameeth, P.
Shanmuga Subramani, K.R. Suresh 2019” Design and
Analysis of Mono Column Building by Using STAAD
Pro” Volume 8, Issue 3, Page no:66-74(IJAIEM)
[10] Dr. S. G. Makarande, Mr. Jayant S. Ramteke, Mr. M. R.
Nikhar, Mr. G. D. Dhawale 2019 “A Review on
comparative study on analysis of conventional Multi-
Storey building & a single column building” Volume 6,
Issue 5(JETIR)
[11] Ankur Pandey, Vaibhav Singh, Gaurav Awasthi 2018
“A Review on Mono Column Multi-Storey Structural
System Using Composite Material” Volume 8, Issue
III(IJAMTES)
[12] Taruna R Kamble, Dr.G.D. Awchat 2018“Seismic
Analysis and Design of Multi-Storied RC Building
Using STAAD Pro and ETABS” Volume 3, No 8(IJIES)
[13] Ankur Pandey, Vaibhav Singh, Gaurav Awasthi
2018“Mono Column Single-storey Structural System
using Composite Material” Volume 5, Issue 4, Page
no:416-421(IAETSD)
[14] Vaibhav Singh, Ankur Pandey 2018 “Mono column
multi-story structural system using composite
material” Volume 4, Issue 12, Page no:442-
446(IJTIMES)
[15] Ambati Venu babu, Dr. Dumpa venkateswarulu 2016
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[17] Anupam Rajmani, Prof Priyabrata Guha 2015
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no:38-45(IJCIET)

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