Design of Multistorey Buildings (Overview)
-
Upload
sri-harsha-gamidi -
Category
Documents
-
view
227 -
download
0
Transcript of Design of Multistorey Buildings (Overview)
-
7/23/2019 Design of Multistorey Buildings (Overview)
1/39
Thanks For Choosing
www.allaboutfreebooks.com
We hope that this presentation is useful to you. If you
also have any presentation which can be useful toother civil engineers then please contact us via our
website.
Thanks
MKS
http://www.allaboutfreebooks.com/http://www.allaboutfreebooks.com/ -
7/23/2019 Design of Multistorey Buildings (Overview)
2/39
CONSTRUCTION AND DESIGN OF
MULTISTOREY BUILDING
AT
UNITECH LTD
SUBMITTED BY: UNDER THE GUINDANCE OFABHIMANYU PARIDA RAJIV GUPTA
!"!#" FACU$TY COORDINATOR
-
7/23/2019 Design of Multistorey Buildings (Overview)
3/39
-
7/23/2019 Design of Multistorey Buildings (Overview)
4/39
Pro%&'(s Un)&r(ak&n
1. Construction of resiential builing !escape"1.1 #$cavation% &ayout an 'ounation
1.( Column layout% shuttering an casting
1.) Slab% *eam shuttering an casting
1.+ Important Components
(. Introuction to bone slab post tensioning(.1 ,ost tensioning
(.( benefits
(.) Tenons an stressing
-
7/23/2019 Design of Multistorey Buildings (Overview)
5/39
Pro%&'(s Un)&r(ak&n
). -esign of builing component
).1 'ormwork esign
).( Staircase esign).) -eep *eams
).+ Slabs
-
7/23/2019 Design of Multistorey Buildings (Overview)
6/39
-
7/23/2019 Design of Multistorey Buildings (Overview)
7/39
E*'a+a(ion, $a-o.( an) Fo.n)a(ion
#$cavation is a process of making trenches by igging up
of earth for the construction of founations an
basements.
#$cavation level at escape site is (1./(0 mm
#$cavation is one by the C* on the hourly basis
2fter the e$cavation the surface is levele calle surface
ressing
&ayout is one on the ,CC poure over levele surface.
Column an founation !raft " steel is then lai as perrawings.
-
7/23/2019 Design of Multistorey Buildings (Overview)
8/39
Poin(s (o (ak& 'ar&:/
layout shoul be checke properly.
Check any ifference between architectural an structural
rawings regaring location of column.
2fter e$cavation check the stability of temporary structures built
near the e$cavate groun. *efore laying raft reinforcement% shuttering wall which is mainly
brick wall shoul be built an shoul be fille with soil on other
sie.
Check the irection of chair bars in the raft
-
7/23/2019 Design of Multistorey Buildings (Overview)
9/39
E0CAVATION
-
7/23/2019 Design of Multistorey Buildings (Overview)
10/39
$AYOUT
-
7/23/2019 Design of Multistorey Buildings (Overview)
11/39
RAFT FOUNDATION
-
7/23/2019 Design of Multistorey Buildings (Overview)
12/39
COU$MN CASTING
3n the raft the column layout is one.
&ayout for starter.
The column ties an link bars are provie as per column
reinforcement rawings an general specifications.
-isplacement of main bars shoul be provie with & bar The plumb of formwork shoul be checke.
4eight of cast shoul be calculate accurately.
2voi caps as far as possible.
-
7/23/2019 Design of Multistorey Buildings (Overview)
13/39
$AYOUT , PEDESTA$ 1 STARTER
-
7/23/2019 Design of Multistorey Buildings (Overview)
14/39
$IN2S 1 TIES
-
7/23/2019 Design of Multistorey Buildings (Overview)
15/39
P$UMB 1 FORM3OR2, CASTING,CURING
-
7/23/2019 Design of Multistorey Buildings (Overview)
16/39
S$AB, BEAM SHUTTERING 1 CASTING
beam bottom is first lai on the column an then slab formwork
is lai
2fter the reinforcement% the slab is checke for steel as per
rawings an level re5uire.
2 camber of 0 mm in provie in the center of slab.
Casting of slab shoul be iscontinue at l6) from the support.
-
7/23/2019 Design of Multistorey Buildings (Overview)
17/39
S$AB STAGES
-
7/23/2019 Design of Multistorey Buildings (Overview)
18/39
IMPORTANT COMPONENTS
Key in column
Water bar
*ining materials
#$pansion 7oint
-
7/23/2019 Design of Multistorey Buildings (Overview)
19/39
2EY IN CO$UMN
since the height of column is very large%
hence it is not possible to cast the column at
one time% to cast the column later the key is
mae at the 7unction so that the proper bonbetween the ol concrete an new concrete is
forme.
-
7/23/2019 Design of Multistorey Buildings (Overview)
20/39
2EY IN CO$UMN
-
7/23/2019 Design of Multistorey Buildings (Overview)
21/39
E0PANSION JOINT
Since concrete is sub7ecte to volume change. ,rovision must
be mae to cater for the volume change by way of 7oint to
relieve the stresses prouce.
#$pansion 7oint is function of length
*uilings longer than +0 m are generally provie with one ormore e$pansion 7oints.
Material use as e$pansion 7oint material is armour boar
whose thickness is (0 mm.
-
7/23/2019 Design of Multistorey Buildings (Overview)
22/39
E0PANSION JOINT
#$pansion 7oint
material% si8e is (0 mm
#$pansion 7oint inbuiling
-
7/23/2019 Design of Multistorey Buildings (Overview)
23/39
3ATER BAR
Water bar is provie in the retaining wall o
that the moisture can9t move from the soil to
the 7oint. Water bar is basically provie at
the constructions 7oints of retaining wall of twoifferent towers
-
7/23/2019 Design of Multistorey Buildings (Overview)
24/39
3ATER BAR
-
7/23/2019 Design of Multistorey Buildings (Overview)
25/39
BINDING MATERIA$S
Since the thermal e$pansion of concrete is ifferent from that ofmasonry. The interface between the concrete an the masonry isliable to crack. To avoi this crack the chicken wire mesh is use toavoi the crack an also provies the better grip for Masonry withconcrete.
Similarly when the rainage pipes are lai along with the outer wallthen again the connection between the pipe an the wall hasifferent coefficient of temperature change hence they are 7oint tothe concrete by lea keys.
In the toilets an kitchen sunken portion the 7oints in any case are
packe by water proof an non shrinkable material.
-
7/23/2019 Design of Multistorey Buildings (Overview)
26/39
BINDING MATERIA$S
Chicken wire mesh between
brick masonry an concrete
Connection of pipes withconcrete
Chicken wire mesh in
conuits through concrete
-
7/23/2019 Design of Multistorey Buildings (Overview)
27/39
3ATER PROOFING
Water proofing has remaine as an unsolve comple$ problem
:se of plastici8ers% super plastici8ers% air;entraining agents
helps in reucing the permeability of concrete by reucing the
re5uirement of mi$ing water% hence can be also be regare aswaterproof material.
Some of approve water;proofing compoun by the company
are
-
7/23/2019 Design of Multistorey Buildings (Overview)
28/39
3ATER PROOFING
Water proofing in sunken
portion of kitchen an
bathroom W, in sunken portion at
groun level
W, in retaining wall
-
7/23/2019 Design of Multistorey Buildings (Overview)
29/39
3ATER PROOFING IN GARDEN AREA
'or water proofing in garen area the soil is first levele an
then ramme to achieve the ma$imum ensity
The ,CC is then lai own mi$e with tape Crete !a water
proofing compoun"
2fter ,CC the plaster of fibrous material is one. the bituminous sheets are lai by heating it with the weler. 3n
those sheets the rainage pipes are lai own with suitable
slope an these pipes are covere with geo;fabric sheets.
2gain the plaster is one. 3n the plaster the += mm aggregates
are lai. 3n the aggregate the geo;fabric sheets are lai own on which
the san is place > on the san the soil %along with fertili8ers%
is place on which the garening is one for the non tower area.
-
7/23/2019 Design of Multistorey Buildings (Overview)
30/39
3ATER PROOFING IN GARDEN AREA
Sany soil
,CC mi$e with tape
Crete !water proof
compoun"
Te$as !bitumen" sheet
-rainage pipe
+= mm aggregate
?eo;fabric sheet San
-
7/23/2019 Design of Multistorey Buildings (Overview)
31/39
-
7/23/2019 Design of Multistorey Buildings (Overview)
32/39
INTRODUCTION4BENEFITS
,ost;tensioning is a metho of reinforcing !strengthening"
concrete or other materials with high;strength steel strans or
bars% typically referre to as tenons
allows longer clear spans% thinner slabs
lower overall builing height for the same floor;to;floor height.
allows a high egree of fle$ibility in the column layout% span
lengths an ramp configurations
-
7/23/2019 Design of Multistorey Buildings (Overview)
33/39
POST TENSIONING
-
7/23/2019 Design of Multistorey Buildings (Overview)
34/39
P$ACEMENT OF TENDONS
,ositioning an fi$ing of casting an block;outs to the ege formworkor construction 7oint formwork
The support bars shall be prepare in avance. &ay tenons accoring to tenon layout in accorance with the
rawings. 'i$ tenons to correct profiles with support bars an chairs an the
tenons are mae with provisions for grouting using grout using groutvents an grout hoses
,repare installation report for every installation as per the encloseformat.
tolerance of tenon profiles is recommene as follows