This document discusses sustainable construction techniques used for the Hyderabad Metro Rail project in India. It focuses on the use of precast segmental construction methods for the viaduct that reduced disturbance to traffic during construction. Over 99,000 precast concrete segments were produced in two large casting yards and erected using various launching girder techniques, including hinged, movable winch, underslung, balanced cantilever, cantilever, and continuous span methods. This allowed for the fast, flexible, and high quality construction of the 71 kilometer elevated viaduct structure with 66 stations.
This presentation will give the brief introduction to the specifications, its different types along with link to example of detailed specifications. Specifications of buildings and roads are discussed.
It is the presentation based on precast concrete construction which includes each and every point and scope which may be useful to civil engineering students
This presentation will give the brief introduction to the specifications, its different types along with link to example of detailed specifications. Specifications of buildings and roads are discussed.
It is the presentation based on precast concrete construction which includes each and every point and scope which may be useful to civil engineering students
EXPANSION JOINT TREATMENT: MATERIAL & TECHNIQUESA Makwana
Although buildings are often constructed using flexible materials, roof and
structural expansion joints are required when plan dimensions are large. It is not possible to
state exact requirements relative to distances between expansion joints because of the many
variables involved, such as ambient temperatures during construction and the expected
temperature range during the life of a building. Expansion joints are periodic breaks in the
structure of the buildings. An expansion joint is a gap in the building structure provided by
an architect or engineer to allow for the movement of the building due to temperature
changes. An expansion joint is an assembly designed to safely absorb the heat-induced
expansion and contraction of various construction materials. They are commonly found
between sections of slabs, bridges, and other structures. The “assembly” can be as simple as
a caulked separation between two sections of the same materials. More recently, expansion
joints have been included in the design of, or added to existing, brick exterior walls for
similar purposes. In concrete and concrete block construction, the term applied is “control
joint,” but serves similar purposes. Throughout the year, building faces and concrete slabs
will expand and contract due to the warming and cooling of our planet through the seasons.
The structures would crack under the stress of thermal expansion and contraction if
expansion joint gaps were not built into the structures. Even today the expansion joint gaps
are often neglected during the design process, and simple caulking is used to fill these gaps
to complete a project. This simple caulking cannot handle the thermal expansion due to the
changing seasons, ultimately leaving a leak point in the structure. This expansion joint
becomes the main source of leakages in the structure which can ruin the interiors of the
building if not sealed or treated confidently. Waterproofing these joints often an overlooked
aspect of waterproofing design and detailing.
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
It is used as a mould for a structure in which fresh concrete is poured only to harden subsequently.
formwork for concrete slab
beam formwork
steel formwork
doka h20
types of formwork
formwork for concrete
what is formwork in construction
building formwork
plywood disadvantages
advantage plywood
advantages and disadvantages of wood
best plywood for formwork
plywood formwork for concrete
mdf advantages and disadvantages
examples of advantages and disadvantages
advantage steel and construction
advantages of steel
disadvantages of steel structures
examples of advantages and disadvantages
advantages and disadvantages of surveys
wiki advantages and disadvantages
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steel formwork system
There was a Bridge 2018 Conference on Innovative Technologies of Bridges organised by IIBE at Lucknow. During the conference held on 25.05.18 this paper was presented by Rajesh Prasad, ED Metro RVNL.
There was a Bridge 2018 Conference on Innovative Technologies of Bridges organised by IIBE at Lucknow. During the conference held on 25.05.18 this paper was presented by Rajesh Prasad, ED Metro RVNL.
EXPANSION JOINT TREATMENT: MATERIAL & TECHNIQUESA Makwana
Although buildings are often constructed using flexible materials, roof and
structural expansion joints are required when plan dimensions are large. It is not possible to
state exact requirements relative to distances between expansion joints because of the many
variables involved, such as ambient temperatures during construction and the expected
temperature range during the life of a building. Expansion joints are periodic breaks in the
structure of the buildings. An expansion joint is a gap in the building structure provided by
an architect or engineer to allow for the movement of the building due to temperature
changes. An expansion joint is an assembly designed to safely absorb the heat-induced
expansion and contraction of various construction materials. They are commonly found
between sections of slabs, bridges, and other structures. The “assembly” can be as simple as
a caulked separation between two sections of the same materials. More recently, expansion
joints have been included in the design of, or added to existing, brick exterior walls for
similar purposes. In concrete and concrete block construction, the term applied is “control
joint,” but serves similar purposes. Throughout the year, building faces and concrete slabs
will expand and contract due to the warming and cooling of our planet through the seasons.
The structures would crack under the stress of thermal expansion and contraction if
expansion joint gaps were not built into the structures. Even today the expansion joint gaps
are often neglected during the design process, and simple caulking is used to fill these gaps
to complete a project. This simple caulking cannot handle the thermal expansion due to the
changing seasons, ultimately leaving a leak point in the structure. This expansion joint
becomes the main source of leakages in the structure which can ruin the interiors of the
building if not sealed or treated confidently. Waterproofing these joints often an overlooked
aspect of waterproofing design and detailing.
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
It is used as a mould for a structure in which fresh concrete is poured only to harden subsequently.
formwork for concrete slab
beam formwork
steel formwork
doka h20
types of formwork
formwork for concrete
what is formwork in construction
building formwork
plywood disadvantages
advantage plywood
advantages and disadvantages of wood
best plywood for formwork
plywood formwork for concrete
mdf advantages and disadvantages
examples of advantages and disadvantages
advantage steel and construction
advantages of steel
disadvantages of steel structures
examples of advantages and disadvantages
advantages and disadvantages of surveys
wiki advantages and disadvantages
steel formwork design
steel formwork system
There was a Bridge 2018 Conference on Innovative Technologies of Bridges organised by IIBE at Lucknow. During the conference held on 25.05.18 this paper was presented by Rajesh Prasad, ED Metro RVNL.
There was a Bridge 2018 Conference on Innovative Technologies of Bridges organised by IIBE at Lucknow. During the conference held on 25.05.18 this paper was presented by Rajesh Prasad, ED Metro RVNL.
Uses of special kind of technologies for implementation of special kind of st...Rajesh Prasad
The said technical paper was presented by Rajesh Prasad in IC TRAM 2018 (International Conference- Technological Advancement in Railways and Metro Projects at Manekshaw Centre New Delhi on 04.10.2018
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Detailed Power point presentation on Implementation of 4 lane Cable Stayed Road over bridge at Bardhman- a future fast track model for construction over busy and longer Railway yards in India
By Shri M V Sathish,
Senior Vice President,
L & T Construction,
at 31st National Convention of Civil Engineers organized by Gujarat State Center of The institution of Engineers (India) at Ahmedabad
Alternative Approach to Permanent way Alignment DesignConstantin Ciobanu
The speaker presented a comparison between the Track
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The main topics:
Cant parameters definition, the origin of the 11.82 cant constant. ways of applying cant.
Track geometry recording. Quality Standard deviation. Inherent standard deviation. The advantage of using rolling SDs. Quality bands for low and high speed.
Cant over a reverse transition - the orphan rule of lifting the reversing point to improve the quality of riding.
Designing a sudden change in curvature. Virtual transition - TRK2049. The rules of the European Norm for track geometry EN 13803-1&2
The significance of transition shift.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
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We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
TOP 10 B TECH COLLEGES IN JAIPUR 2024.pptxnikitacareer3
Looking for the best engineering colleges in Jaipur for 2024?
Check out our list of the top 10 B.Tech colleges to help you make the right choice for your future career!
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4) NIMS UNIV
5) JECRC
6) VIVEKANANDA GLOBAL UNIV
7) BIT JAIPUR
8) APEX UNIV
9) AMITY UNIV.
10) JNU
TO KNOW MORE ABOUT COLLEGES, FEES AND PLACEMENT, WATCH THE FULL VIDEO GIVEN BELOW ON "TOP 10 B TECH COLLEGES IN JAIPUR"
https://www.youtube.com/watch?v=vSNje0MBh7g
VISIT CAREER MANTRA PORTAL TO KNOW MORE ABOUT COLLEGES/UNIVERSITITES in Jaipur:
https://careermantra.net/colleges/3378/Jaipur/b-tech
Get all the information you need to plan your next steps in your medical career with Career Mantra!
https://careermantra.net/
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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ACEP Magazine edition 4th launched on 05.06.2024Rahul
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Understanding Inductive Bias in Machine LearningSUTEJAS
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The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
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Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
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6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
6th International Conference on Machine Learning & Applications (CMLA 2024)
SUSTAINABLE CONSTRUCTION TECHNIQUES
1. SUSTAINABLE CONSTRUCTION TECHNIQUES – A Case
Study On Precast Segmental Construction Techniques
Adopted For Hyderabad Metro Rail Project
by 1. K. Bhavani
2. Sunil. K
3. L.chandravanan
L&T Construction - Chennai - India
TISI-2015
3. WHY MRTS?
Benefits
• 1/5th energy per passenger km
• Eco Friendly
• Less road space(2.4m)
• 3-4 lakhs passenger per hour
• Reduce transport problem
• Large area
• Many railway
crossings
• Less frequency
MMTS
• Wide roads
• Less passenger
flow
BRTS
MRTSDis-advantage
• Congestion on roads at
the time of construction
• Cost factor
• Environmental impact
Cost - Factor
• By integrate metros with others systems
considering - volume, structure, availability
of space & resources for traffic and
transportation.
Traffic Congestion
• Construction Techniques.MRTS – Sustainable Transport
system during operation.
During Construction ----?
4. HYDERABAD METRO - BRIEF
Corridor -1
Corridor -2
Corridor -3
Interchange
• VIADUCT: 71.16 KM
• STATIONS: 66 NOS
• DEPOT: 3 NOS
ROB
5. SELECTION OF TYPE OF METRO RAIL- ELEVATED VIADUCT
UNDER-
GROUND
RAIL
High cost (2-3
times)
Maintenance
& HVAC
High carbon
footprint
Security
concern
Deccan
plateau –
Underground
rocks
6. COMPLEXITY IN CONSTRUCTION - ELEVATED METRO
Traffic / Junctions –Least
disturbance to traffic
Heritage / Important structures
Existing Utility
Existing Railway Crossing
(ROB)
Paucity of space
Existing bridges / Structures
Utilityidentificationthrough trenching
Miyapur S R Nagar
Bharat Nagar
Metro Station (~150m)
Erragadda
Metro station (~600m)
7. CONSTRAINS – CONSTRUCTION METHODOLOGY
Sustainable
Construction
Methodology
Minimum
Disturbance
to public
Dismantling
to existing
structure
Quality of
Construction
Reduced
execution time
Overall
Economy
8. Span Alignment with 128m Curvature
Corridor
R≥600m
% / No’s
R <600 &
≥ 300m
% / No’s
R<300&
≥ 120m
% / No’s
C-1
89.4% /
744 No’s
6.5% /
54 No’s
4.1% /
34No’s
C-2
86.8% /
353 No’s
5.5% /
22 No’s
7.7% /
31 No’s
C-3
91.13% /
697 No’s
4.3% /
33 No’s
4.57% /
35 No’s
MINIMUM DISTURBANCE TO PUBLIC AND EXISTING STRUCTURE
Foundation
• 90% Open Foundation
• Reduced machinery
Substructure
• Single Pier
• Portal Pier & L-Pier to
avoid encroachment in
road
Superstructure
• Box Girder
• Viaduct-2.1m Height
• Station-1.8m Height
• 37m to 45m Span-
2.85m Height
Proposed Alignment - MGBS to SalarJung Museum
Revised Alignment - MGBS to SalarJung Museum
Alignment -
Curvature
Pier Alignment for Curved Span
9. Cast segments are a major advantage of
segmental construction
Casting yard brings
Factory controlled production techniques
Effiency
Quality control
reducing overall construction time.
Two methods of segment casting are
available:
Long line casting
Short line casting
QUALITY CONSTRUCTION- PRECASTING YARD
Casting Yard
Casting Yard
Name
Segment Cast
Scope No.
Segment Cast
Nos.
1 Uppal 14000 6236
2 Qutubullahpur 14000 3735
Total 28000 9971
Casting
Stacking Transportation
10. • 28,000 No’s of segments – 2 precast yards of 64.5 acres and 46.2 acres respectively
• Asia’s second largest precast yard (second to Dubai metro)
PRECAST YARD-FEATURES
11. Pier head Segment
Casting Casting of Running Segment Match Casting of Segment
Match Casting of Curved Segment Stacking of segment
QUALITY CONSTRUCTION- SEGMENT CASTING & STACKING
12. SEGMENTAL CONSTRUCTION
- planning of USLG for stations
(Cycle time :2days/span)
Box girder
segments can be cast
& stacked parallel to
foundation and pier
fast progress
minimum
disturbance
curved
alignment
suitable for
varying span
lengths
flexibility
Construction
cost
2
7
15
32
50
34
45
51
67
58
70
63
73
86
75
70 68
43 44
48
0
20
40
60
80
100
Dec'12
Jan'13
Feb'13
Mar'13
Apr'13
May'13
Jun'13
Jul'13
Aug'13
Sep'13
Oct'13
Nov'13
Dec'13
Jan'14
Feb'14
Mar'14
Apr'14
May'14
Jun'14
Jul'14
Month wise Span Erection Spans Erected
13. CHALLENGES – SEGMENTAL CONSTRUCTION
Various
Junctions/
Crossing
Existing
flyovers
Rail crossing
67% of viaduct
in curves
10% of viaduct
with 128m R
Pier height
varying form
8m to 25m
Construction
duration
Transportation
of precast
segment
Challenges in segment erection
14. SUPERSTRUCTURE TYPE COMPARISON FOR VARIOUS
METRO PROJECT – STATION SPANS
More than 50% cast insitu-
eliminated.
Concourse level & plat form level
Precast element.
Cycle time was reduced.Formwork for Slab/Beams
Completed view
Formwork for columns/piers Erection of Viaduct
platform level & Concourse - Erection
Completed view
Typical Cast In-situ Construction of Station Spans
16. Viaduct Erection
Span by span
Over slung LG
(up to 128mR -31m span)
Hinged LG
Movable
Winch LG
Under slung LG
Balanced Cantilever /
Cantilever
Under slung LG
ROB erection
(39m+65m+39m)
Bridge Builder
Continuous span
Over slung LG
Pocket track
Loop line
Flexibility to feed
segment form
erected span
Segment Feeding
using crane
Station Viaduct
(13-17m span)
Special spans
(37m-45m span)
CONSTRUCTION METHODOLOGY - SEGMENTAL BOX
ROB erection
128m R spans
(39.5m+65m+32.5m)
17. SUPERSTRUCTURE TYPE COMPARISON FOR VARIOUS
METRO PROJECT
Description DMRC BMRC CMRL HMRL
Concrete in Cum 165 160 151 145
Steel in MT 32 25.6 22 20
Pre-stressing steel in MT 5.8 5.6 5.0 4.65
Project Delhi Metro
CC-17
Package
Delhi Metro
CC-28
Package
Hyderabad
MetroDescription
Viaduct length 5.45 km 5.72 km 72 km
Stations 3 No's 5 No's 66 No's
Total spans 199 No's 223 No's 2700 No's
Segmental spans 187 No's 198 No's 2680 No's
I-Girder spans 27 No's 25 No's -
Cast insitu spans - 8 No's 20 No's
Minimum Radius
of Curvature
250m 250m 128m
Maximum
segmental span
length
37m 37m 45m
I-girder
Deck slab
Typical Cross Section of Pocket track
Box girder
Insitu joint
Typical Cross Section of Pocket track used in HMRP
More than 95% spans are
segmental spans.
Special spans – Pocket track,
loop line & service line are with
box girder
20. Capability of Hinged Launching Girder
Erection of 34m span with a curvature of 250m.
Erection of span ranging from 19m to 31m with a curvature of
128m
• Less disturbance to traffic
• Within Barrication width
21. 31m straight span
External ground support
31m span in 152m horizontal radius - CMRL
Advantage Of Introduction Of Hinge
22. Features
34m span erection in 250 m Radius of Curvature
31m span erection in 128m Radius of curvature
No counter weight
Segment can be picked from ground/completed deck
LAUNCHING GIRDER WITH MOVABLE WINCH
Typical Span Erection of Movable Winch LG over Flyover
• Less disturbance to traffic
• Feeding from erected deck
23. Capability of Underslung Launching Girder
Erection of Special Spans (37m-45m).
supported on the Trestles
Cycle time – 15 days /span
Typical Elevation of Under slung LG for 45m Span.
Cycle time – Cast insitu span
45 days/span
24. Capability of Underslung Launching Girder
Erection of station span (13.4m & 17m).
supported on the Pier bracket stressed along with the
station pier during erection and launching.
Cycle time – 2 days /span
• Reduce station completion
time