“Build Smart”
THE EARTH IS FALLING APART
India needs to build smarter bridges.
– Protect the People using them.– Save money from having to rebuild
them.
WAYS TO BUILD SMART
TechStar’s Modular Expansion Joint System (MEJS)– Innovations in Design– Strength of Materials– Quality of Fabrication–Monitoring the Device’s Health
A BRIEF HISTORY OF MEJS
TechStar was incorporated in the State of Ohio, USA.
A BRIEF HISTORY OF MEJS
Founders have 100 years collective experience in the development of Expansion Joints.
TechStar has supplied over 12,000 meters of Expansion Joints.
TechStar can supply Expansion Joints for movements up to 2000mm
TechStar has Production Facilities in the USA, Canada, Taiwan, China & India
INNOVATIONS IN DESIGN
All over the world, bridges and buildings are being built in Seismic Active areas. These structures must be equipped
with Modern Technology to protect the Structures, and the people using them.
INNOVATIONS IN DESIGN
The Swivel Joint
INNOVATIONS IN DESIGN
What does a Swivel Joint Do?– In a Swivel Type Expansion Joint, the
Support Bar is able to pivot within the Trumpeted Support Bar Box.
– This allows for the Expansion Joint to move Transversely.
– During Earthquakes an Expansion Joint is forced to move Transversely.
INNOVATION IN DESIGN
Support bar Box is Trumpeted
INNOVATIONS IN DESIGN
The Support Bar Can Pivot
INNOVATION IN DESIGN
Palm Jumeirah Bridge, Dubai
INNOVATION IN DESIGN
Rupsa Bridge, Bangladesh
INNOVATION IN DESIGN
San Francisco-Oakland Bay Bridge
INNOVATIONS IN DESIGN
WeiHai Bridge, China
INNOVATIONS IN DESIGN
Elastic Connection
INNOVATIONS IN DESIGN
What does an Elastic Connection Do?– Connection between Center beam
and Support Bar is an Elastic Connection.
– The alternative design welds the two steel beams together.
–With an elastic connection, the friction is dampened, therefore strengthening Expansion Joint.
INNOVATIONS IN DESIGN
Welding?
STRENGTH IN MATERIALS
Durability
STRENGTH IN MATERIALS
The Steel Beam is one piece hot rolled for resistance to fatigue (impact load)
STRENGTH IN MATERIALS
The Support Spring is made of nylon and is not compressible.
Allows the Support Bar position and Center Beam position to be accurately controlled.
STRENGTH IN MATERIALS
Easy Replacement
STRENGTH IN MATERIALS
The Rubber Seal is thinner than competition.
The Control Springs are outside the boxes.
All components of TechStar design are replaceable.
Allows for Fast & Easy Replacement if necessary.
FABRICATION
Metco Production
FABRICATION
In December 2008 Metco became TechStar’s exclusive partner in India.
In 2009 Metco fabricated & delivered 1st Expansion Joint Project to Yemen.
FABRICATION
All Production is Quality Assured by TechStar Engineer’s.
SMART JOINT
Access Live Data from the Expansion Joint via the Internet.
Data is sent with a wireless connection.
Expansion Joint
Internet
SMART JOINT
How Does it Work?
sms/mms
SMART JOINT
How is it Powered?
SMART JOINT
Measures Load Force
SMART JOINT
Measures Displacement between Edge beams
SMART JOINT
DangJin Sapgyoho Bridge First Bridge to use Smart Joint
Technology
TECHSTAR PROJECTS
Benicia Martinez, California
TECHSTAR PROJECTS
BinHai Expressway, China
TECHSTAR PROJECTS
Hathaway Bridge, Florida
TECHSTAR PROJECTS
JiHe Expressway, China
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