Arman
Engineering offers you with architectural Curtain-Wall. It is an extremely fined exterior-covering
system for a high-rise building where the outer walls still remain
non-structural, but merely to keep it shaped and fit, not to influence inner weather
from that of outside. As the curtain wall is non-structural and invasive, it
can be made out of lightweight materials ultimately reducing construction
costs. While the glass is used for curtain wall, natural light enters deeper into
the building boosted us having Vitamin-D and keeps inner side pleasant look lighted
more reducing regular electricity bill. The curtain wall is especially designed
for hindrance the air and water infiltration, swing induced by wind and seismic
forces acting on the building, and its own dead load weight forces. Curtain
wall systems are typically shaped with extruded aluminum members. Curtain walls
vary from store-front systems in that they are designed to span multiple
floors, and take into consideration design requirements such as building sway
and movement, water diversion, and thermal efficiency for cost-effective
heating or cooling.
Categories of Curtain Wall Fabrication:
Here you will have Curtain Wall fabrication with some categories according to uses and principles such as:
Unitized System
Semi Unitized System
Stick System
Unitized System
The unitized curtain wall is a kind of façade
maintenance system that the unitized panel assembled by a variety of components
of curtain wall (including glass panels and supporting frames) in a factory,
and then delivered to the site for hanging installation of which components are
fixed to main structure by pre-embedded Connecting Parts.
For unitized curtain walling, approximately 30%
of the work is done on-site, while 70% is carried out in the factory. The whole
assembly of the units in the factory brings several benefits.
These include:
§ Improved quality
control
§ Concurrent manufacture
and site preparation- units can be assembled while the structural frame is
being built.
§ The facade can also be
completed a floor at a time, allowing parallel internal work
§ Quicker installation,
requiring less manpower on site
§ This system is mainly
used in high-rise building without requiring exterior supports like cranes or
scaffolding. Only mini cranes or a temporary hoist can be held over the floor
to keep it supportive during installation.
§ Can be installed from
the interior of the building. This is ideal for extremely high towers or
building sites where there is a tight footprint
§ Less space is needed on
site for layout.
Semi Unitized System:
Semi-unitized Curtain Wall has combined
features of stick curtain wall and unitized curtain wall. Semi unitized system
vertical mullions and horizontal transoms are installed on brackets which are
anchored to the columns/slabs. Glass is structurally glazed to the aluminum sub-frame
by the structural sealant.
Advantages of Semi-Unitized Glazing
The vertical mullions mostly semi-unitized glazing systems can span two floors with ease and as a result provide greater structural efficiency.
Most semi-unitized glazing systems have shop-assembled or off-site assembled frames. This saves the time and cost.
Reasonable
selection and usage of material
Stick System:
Stick curtain walling systems are more versatile
and allow us to integrate other systems such as sliding doors and windows. They
tend to be less specialized and can be built by all types of fabricators as
they are not dependent on having a large factory.
However, stick systems do require multiple
steps to erect and seal the wall, which means more time is spent on-site– an
approximate rule of thumb would be that 70% of the work is carried out on-site,
with 30% in the factory. This incurs further costs, such as laborer's
time.
Advantages:
Extensive availability of system choice on the market at very competitive prices and short lead-in times
Suited for angular or complex facades
Sightlines are slimmer than Unitized Curtain Walling
Quicker production processes in the factory
Sequence
of the building can be changed quickly
