An innovative way to build a high rise structure where all the structural members of a building are supported by a central core

1. Industrialization of Building Construction
Using
TopDown Method
An Innovative Approach
ADITYA MHATRE
182200031
FY M. Tech. Project Management
Veermata Jijabai Technological Institute

2. What Is Top Down Construction?
Innovative and revolutionary type of building construction
Like a tree trunk supports branches, concrete cores support the
floor structure and carry all vertical loads, totally eliminating the
need for columns
The structure and all its elements are built on the ground level no
more than 6 ft. and then lifted using pulleys(strand Jacks) fixed on top
on the central core
The first floor to be installed is the Terrace, followed by the pen
ultimate floor level and then rest upto ground level

3. Who Invented this?
A company called THORNTON TOMASETTI based in USA held all the
rights to this technology
The patent and rights were transfered to AECOS LTD. in 2015
A building was built under joint partnership between SHAPOORJI
PALLONJI And AECOS
A first of its kind in INDIA

4. How is it done?

5. 1. Foundation 2. Central Core 3. Floor Assembly 4. Beam Layout
5. Cast Slab 6. Install Pulley 7. Lift Slab and anchor 8. Repeat
Sequence of Activities

6. Conventional Approach
Slab
Beam
Column
Foundation
Load Distribution

7. TOP DOWN APPROACH
LOAD DISTRIBUTION
Utility
Beam
Sla b
C
O
R
E
Foundation

8. Benefits of TopDown System
Work on Ground
All activities on slab are
carried out within 2m of
ground
Better
Management
Less simulataneous
activities may help in better
project control
Enforced and Enhanced
Job made easy for quality
inspectors as work is
carried on ground
50% time reduction
Speeds up installation
activities as many acivities
are filtered
Savings
Reduction in activities and
materials gives room for
saving in costs in all aspects
Safety
Efficiency
CostTime
Qualit
y

9. Stats
Client : INTEL TECHNOLOGY INDIA PVT. LTD.
Certification : LEED - Platinum Grade
Total Floor Area : 6,45,000 Sqf
Safety record : 5 million safe manhours
Duration : Mar 2014 - Nov 2016 (Including design phase)

10. SWOT ANALYSIS
S
T
W
O
• Speed of construction
• Enhanced Quality
monitoring
• More Floor area
• Reduction in dead load
• Better Safety
• Material Saving
• Overall cost reduction
• Great strides can be
achieved in
afforadle housing
• Can be used for
rehabilitation post
disaster
• Failure of jacks
• Highly Skilled labour
• Maintain Precision and
Accuracy
• Failure of Jacks
• Small error may
incurr high
rectification costs

11. Intel SRR3 Project
It’s something that every efficiency expert knows: mass
production is the keystone of maximizing abudget. The TopDown
system mass produces the floors of your high rise.Historically, the
natural construction variances that are a product of building
several stories in the air made this impossible, but by creating
every floor at ground level, the TopDown system provides greater
control – maximizing the design efficiency of each floor. This
enables massproduction of all components with precise
specifications unmatched by conventional construction
practices.But mass production in no way limits design flexibility.
The TopDown™ system can be utilized to create a high rise of
virtually any height, size or shape..Put simply, the AECOS
TopDown™ system is the most efficient way to build a high rise in
the world today. It’s a revolutionary method to deliver excellence
in construction – one story at a time.
INDUSTRIALISATION OF
STRUCTURE

12. THANK YOU