THE EFFECT OF PARTIAL CONSTRUCTION IN 3D-MULTISTORIED FRAME

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 1809
THE EFFECT OF PARTIAL CONSTRUCTION IN 3D-MULTISTORIED
FRAME
Applav1, Dr. Sunil Kumar2
1PG Student, Department of Civil Engineering, HBTU, U.P, INDIA
2Professor, Department of Civil Engineering, HBTU, U.P, INDIA
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Abstract –
Multistoried buildingshavebeenanalyzedforyearon
the assumption that whole of the load is applied on the
completed frame. Looking into the mode of incidence of the
load or various stage of partial construction, it is evident that
part of the load is applied in stages as the construction of the
frame proceeds, where as the remaining part of it is imposed
on completion of the frame. Unfortunately, the aspect of
partial construction of the frame due to any reasons has been
over looked till now by engineers, although its effect on the
final stresses of the frame is quite considerable.
Computer aided analysis of building system is
considered in present work by considering the self-weight,
Dead loads, Live Loads & Earth-quake loads with different
load cases and later the effect of partial construction is
studied. The building system consists of slabs supported on
beams which are framed into columns and foundations. The
software STADPRO V8i is used for analysis.
Initially Three dimensional six storied is considered
under various combination of loading as per IS 456:2000 and
later different modes of partial construction are chosen by
eliminating either some storeys or bays. At each instant the
variation in bending momentsandaxialloadsovercolumn has
been studied.
The comparative study between main frame and
different modes of partial construction is being done. It is
evident from this study that during analysis of multistoried
frame, the mode of partial construction should be pre-defined,
if constructed in phases.
Key Words: partial construction, building system,
multistoried frame, different modes, load cases.
1. INTRODUCTION
Safety, Serviceability and Economy are the basic
qualities which all structures should possess during their
designed life span.
Analysis and design of structures constitute the two
major activities in Structural Engineering practices.
Generally, structural analysis and design are two mutually
coupled processes. The results of the analysis decide the
choice of variables in the design.
Generally, multistoried building frames have been
analyze in a single step as completeframebyconsidering the
self weight , dead loads , live loads & earth-quake loads with
different load cases acting on the building. The performance
of structure with various load applied in single step differs
significantly from that when the structure is constructed in
different cases [i.e. stages of partial construction].
The structural analysis of multistoried building is on
of the areas that have attracted the engineering researchers
& designer attention. There is area of partial construction,
however, which has been ignored by many designers till
now.
In this study we are considering 3D multistoried
frame under various combition of loading & later different
mode of partial construction are considered by eliminating
either some storeys & bays.
2. Work Methodology
2.1 General
In the present work, software package STAAD.ProV8i is
used to analysis the THREE DIMENSIONAL SIX STOREYED
building frame under combination of Dead, Live load and
Seismic Load. Later, we consider different modes of partial
construction. The considered modes of partial construction
are mentioned in Article 3.3. The effect of each mode of
partial construction is to be noted in columns in comparison
with main six storied structure.
This is a real problem, generally occurs in practical life
that builders take design and drawing of complete structure
but construct only some part due to various constraints (i.e.
financial, time requirement etc.).

2.2 Details of Building
The details of the main building are given below:
Table 2.1 –Parameters of Main Building
S.No. Particulars Description
1 No’s of Storey’s 6
2 No’s of Bays in X-direction 3
3 No’s of Bays in Z-direction 2
4 No’s of joints 84
5 No’s of member 174
6 Type of Building Mercantile
7 City Lucknow
8 Earthquake Zone IV
9 Soil Type Medium Soil
10 Importance factor 1.5
11 Building Frame System Ordinary RC
moment resisting
frame
12 Zone Factor 0.16
13 Storey Height 3.00 m
14 Grade of concrete M25
15 Grade of steel Fe 500
2.3 MODES OF PARTIAL CONSTRUCTIONS:
The following modes of partial construction were
considered for comparative study:
 Case –I: One bay of span = 5.00 m is removed from
sixth storey.
 Case-II: One bay of span = 5.00 m is removed from
fifth and sixth story.
 Case-III: The building is constructed up to fourth
floor.
 Case-IV: The building is constructed up to second
floor.
 Case-V: The building is constructed up to first floor.
The main frame and all five cases of partial construction
were analyzed and designed by using software
STAAD.ProV8i. These six models were used for the
comparison of response of various forces in terms of
axial force, bending moments and shear forces in
different loading combinations.
2.4 Loads
InthecurrentworkcombinationofSelf-weight,Dead
Loads, Live loads and Earthquake loads is taken in account.
The loads are confiriming to IS 875 (part1 & part2) and IS
1893 (part1):2002.
3. Modelling of Structure
3.1 General
Data preparation for structural analysis problem
basically involved, (1)describingthestructuralgeometry,(2)
defining the static and /ordynamicloadconditionsforwhich
the structure needs to be analyzed.
3.2 Problem Statement
The details ofmainproblemtakeninthisworkareas
below:
 Type of building = Mercantile
 Nos. of bays in X – direction = 3
 Nos. of bays in Z – direction = 2
 Nos. of storey = 6
 Nos. of Joints = 84
 Nos. of members = 174
 Thickness of slab = 125mm(M25)
Details of beams:
Table 3.1 - Dimensions of Beams Section
SPAN FIRST & LAST
PORTAL
INTERMEDIATE
PORTAL
MIX
(M) B (mm) D (mm) B (mm) D (mm)
4.0 230 350 230 450 M25
5.0 230 550 230 650 M25
Details of columns:
Table 3.2 - Dimensions of Columns Section
LOCATION OF
COLUMNS
FIRST & LAST
PORTAL
(mm)
INTERMEDIATE
PORTAL
(mm)
MIX
EXTERIOR 300 X 400 300 X 500 M25
INTERIOR 300 X 450 300 X 650 M25

Details of loading on beams:
Table 3.3:- Loading on beams
SPAN
(M)
LOCATION OF BEAMS AT FLOORS
(KN/m)
AT TERRACE
(KN/m)
4.0 END BEAM 17 14
INTERMEDIATE 25 21
5.0 END BEAM 20 16
INTERMEDIATE 30 26
3.3 Main Model
Figure 3.1 : THREE DIMENSIONAL SIX STOREYED FRAME
3.4 Different Models
The different modes of partial construction are as
follows:
 Case-I: One bay of span = 5.00 m is removed from
sixth storey [Refer figure 3.2 ]
 Case-II: One bay of span = 5.00 m is removed from
fifth & sixth storey [Refer figure 3.3]
 Case-III: The building is constructed up to fourth floor
[Refer figure 3.4]
 Case-IV: The building is constructed up to second floor
[Refer figure 3.5]
Case-V: The building is constructed up to first floor
[Refer figure 3.6]
Figure 3.2 : CASE-I OF PARTIAL CONSTRUCTION
FRAME [One bay of span 5m is removed from 6th storey]
Figure 3.3 : CASE-II OF PARTIAL CONSTRUCTION
FRAME [One bay of span 5m is removed from 5th and 6th
storey]
Figure 3.4 : CASE-III OF PARTIAL CONSTRUCTION
FRAME [Building constructed up to fourth floor]

Figure 3.5 : CASE-IV OF PARTIAL CONSTRUCTION
FRAME [Building constructed up to second floor]
Figure 3.6 : CASE-V OF PARTIAL CONSTRUCTION
FRAME [Building constructed up to first floor]
4. Analysis
All structures may be analyzed by the linear elastic
theory to calculateinternalactionsproducedbydesignloads.
In the present work we have used the software
STAAD.ProV8i for the analysis.
5. Comparative Study
The different modes of partial construction were
analyzed. These modes were chosen by eliminating either
some storey or bays. At each instant the variation in bending
moments and axial loads for various members has been
studied. The variation in moments in axial load in columns
with respect to main complete frame is to be performed.
Figures 5.1 Plan of columns locations
6. Discussion
6.1 Column no.1
The graph for axial load ( Pu ) and bending moment
( Mz )are as follows:

After the detail study fromtheresultsandgraphthat
the design of column section obtained from main complete
frame analysis & design. It needs scrutiny of the proposed
section at following floor level, if constructed in any one of
the modes of partial construction:
i. If the building is constructed in case-I (i.e.
one bay of span 5.00 m is removed at 6th
storey) of partial construction in place of
main complete frame then column No: 1 is
critical at 4th floor.
ii. If the building is constructed in case-II (i.e.
one bay of span 5.00 m is removed at 5th &
6th storey) of partial construction in place
of main complete frame then column No: 1
is critical at 3rd floor.
iii. If the building isconstructed incase-III&IV
than design of main complete frame has no
scope of check this Column.
iv. If the building is constructed in case-V (i.e.
building is constructed up to 1st floor) of
partial construction in place of main
complete frame then column No: 1 is
critical at Ground floor.
6.2. Column No.2

After the detail study fromtheresultsandgraphthat
the design of column section obtained from main complete
frame analysis & design. It needs scrutiny of the proposed
section at following floor level, if constructed in any one of
the modes of partial construction:
i. If the building is constructed in case-I (i.e.
critical at 4th floor.
ii. If the building is constructed in case-I (i.e.
critical at 3rd floor.
iii. If the building is constructedin case-II ((i.e.
one bay of span 5.00 m is removed at 5th &
6th storey) of partial construction in place
of main complete frame then column No: 2
is critical at 3rd floor.
6.3. Column No.3
After the detail study from the results and graph
that,if the building is constructed in any mode of partial
construction in place of main complete frame than column
No: 3 has no scope to check in any mode of partial
construction, hence providedsectionofmaincompleteframe
is adequate.
Comparative study for other columns will be done
separately.
7. Conclusions
a) The following are evident from above study:
i. If the building isconstructed in Case -I (ie.onebayof
span 5.00 m is removed at 6th storey) of partial
construction than the column no. 1, 2, 5, 6, 7 & 8
were redesigned.
ii. If the building is constructed in Case-Il (i.e. One bay
of span 5.00 m is removed at 5th & 6th storey) of
Partial construction than thecolumn no. 1,2, 5, 6,
& 7 were redesigned.

iii. If the building is constructed in Case -V (i.e. building
constructed up to first floor) of Partial
construction than the column no. I was
redesigned.
b) As from above study it is seen that in some cases of
partial construction columnmomentsandaxialload
both increase.
c) Nature of column moments may change in different
mode of partial construction, such as some of the
columns designed for axial loads may be subjected
to uniaxial and biaxial bending under partial
construction.
If magnitude of column moments and axial
loads increases or nature of column moments in
different plane changes,thenitshouldbeconsidered
in design for safety and serviceability of structure.
d) More rational and economical designcanbedoneby
considering the effects of partial constructions.
e) As is evident from above discussion, it is concluded
that in analysis of multistoried structure, the mode
of partial construction should be pre-defined, if
constructed in phases and its behaviour should be
taken into account.
8. Future Perspective
There is an immense scope in this field of CAD for
future work. Limited modes of partial construction are used
in present study. Wind loads have not been considered at
present. However, this can be added to the work with little
effort, but has been left out due to lack of time.
The work can be extended to carry outthewindanalysis.
An interface between analyses can be developed.
9. Reference
1. Agarwala. S.K, Chakrabarti.S.C&Nayak.G.C,“Effectof
Sequence of Construction in Analysis of Multi
Storied Building Frames”. Building & Environment,
Vol-13 pp 1-6, 1978.
2. ChoiChang-Koon,et.al,“SimplifiedBuildingAnalysis
with Sequential Dead Loads (CRM)”, Journal of
Structural Engineering, Volume 110.
3. TaehunHaandSunghoLee,“AdvancedConstruction
Stage Analysis of High-rise Building considering
creep and Shrinkage concrete, Advances in
Structural Engineering and Mechanics (ASEM 13),
2013
4. K M Pathan, SayyadWajed Ali,Hanzala T Khan, M S
Mirza, MohdWaseem, ShaikhZubair, “Construction
Stage Analysis of RCC Frames”.InternationalJournal
of Engineering & Technology Research, Volume-2,
Issue-3, May-June 2014, pp.54-58.
5. B Sri Harsha, J Vikranth “Study and Comparison of
Construction Sequence Analysis with Regular
analysis by Using E.Tabs”. B. S Harsha, etal,
International Journal of Research Science and
Advance Engineering [IJRSAE]TM Volume 2, Issue8,
PP: 218-227, Oct-Dec 2014.
6. Sagupta R.Amin, S.K.Mahajan, “Analysis of Multi
Storied R.C.C Building for Construction Sequence
Loading”, international Journal of Modern Trendsin
engineering and Research, e-ISSN No: 2349- 9745,
July 2015.
7. Jain O.P &Palaniswamy.S.P, “Effect of Construction
Stages on the Stresses in Multi Storied Frames”.
Nat.Conf.Tall Buildings, New Delhi.
8. Selvaraj& Sharma. S.P “Influence of Construction
Sequence on the Stresses in Tall Building Frames”.
Prac. Regional Conf. on Tall Building, 1974.
9. IS-456, 2000 “Indian code of practice for Plain and
Reinforced concrete”.
10. IS 1893 (Part 1): 2002, Criteria for Earthquake
Resistant Design of Structure-Part 1, General
Provision and Buildings (fifth revision); Burean of
India Standards, New Delhi.
11. IS 875 (Part 1 to 4) Codeof PracticeforDesignLoads
(other than earthquake) for Buildings and
Structures.
12. SP-16, Design Aids to IS 456.
13. William weaver. Jr. and James.M.Gere, “Matrix
Analysis of Framed Structure”.
14. National Building code of India.

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