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A blog about civil engineering and it's fields like construction,surveying,geotechnology,hydrology,structures,transportation,CAD and etc
Monday, January 27, 2014
Thursday, January 23, 2014
Thursday, January 9, 2014
Applications of Pre Engineered steel buildings
Applications of Pre Engineered steel buildings include
· Factories
· Warehouses
· Sport Halls ( Indoor and Outdoor)
· Warehouses
· Supermarkets
· Workshops
· Office Buildings
· Labor Camps
· Petrol Pumps/Service Buildings
· Schools
· Community centers
· Railway Stations
· Equipment housing/shelters.
There is a great possibility of improving the aesthetic quality with a
choice of roofing elements, exterior finishes, weather-sheds, color system and
variations in planning as well as massing.
Friday, January 3, 2014
Advantages of Pre Engineering buildings (PEB)
Advantages of Pre Engineering buildings
Reduction in Construction Time: Buildings are typically delivered
in just a few weeks after approval of drawings. Foundation and anchor bolts are
cast parallel with finished, ready for the site bolting. In India the use of
PEB will reduce total construction time of the project by at least 50%. This
also allows faster occupancy and earlier realization of revenue.
Lower Cost: Due to the systems approach, there
is a significant saving in design, manufacturing and on site erection cost. The
secondary members and cladding nest together reducing transportation cost.
Flexibility of Expansion: Buildings can be easily expanded in
length by adding additional bays. Also expansion in width and height is
possible by pre designing for future expansion.
Larger Spans: Buildings can be supplied to around
80M clear spans.
Quality Control: As buildings are manufactured
completely in the factory under controlled conditions the quality is assured.
Low Maintenance: Buildings are supplied with high
quality paint systems for cladding and steel to suit ambient conditions at the
site, which results in long durability and low maintenance costs.
Energy Efficient Roofing and Wall
Systems: Buildings
can be supplied with polyurethane insulated panels or fiberglass blankets
insulation to achieve required “U” values.
Architectural Versatility: Building can be supplied with
various types of fascias, canopies, and curved eaves and are designed to
receive pre cast concrete wall panels, curtain walls, block walls and other
wall systems.
Single Source Availability: As the complete building package is
supplied by a single vendor, compatibility of all the building components and
accessories is assured. This is one of the major benefits of the pre engineered
building systems.
Thursday, January 2, 2014
Features of pre engineering buildings
Features of pre engineering buildings
Pre–engineered steel buildings use a combination of built-up sections,
hot rolled sections and cold formed elements which provide the basic steel
frame work with a choice of single skin sheeting with added insulation or
insulated sandwich panels for roofing and wall cladding. The concept is
designed to provide a complete building envelope system which is air tight,
energy efficient, optimum in weight and cost and, above all, designed to fit
user requirement like a well fitted glove.
Pre engineered steel buildings can be fitted with different structural
accessories including mezzanine floors, canopies, fascias, interior partitions
etc. and the building is made water proof by use of special mastic beads,
filler strips and trims. This is very versatile buildings systems and can be
finished internally to serve any functions and accessorized externally to
achieve attractive and unique designing styles. It is very advantageous over
the conventional buildings and is really helpful in the low rise building
design.
Pre
engineered buildings are generally low rise buildings however the maximum eave
height can go up to 25 to 30 meters. Low rise buildings are ideal for offices,
houses, showrooms, shop fronts etc. The application of pre engineered buildings
concept to low raise buildings is very economical and speedy. Buildings can be
constructed in less than half the normal time especially when complemented with
the other engineered sub systems.
The
most common and economical type of low rise buildings is a building with ground
floor and two intermediate floor plus roof. The roof of low rise buildings may
be flat or sloped. Intermediate floors of low rise buildings are made of
mezzanine systems. Single storied houses for living take minimum time for
construction and can be built in any type of geographical location like
extreme cold hilly areas, high rain prone areas, plain land obviously and
extreme hot climatic zones as well.
Wednesday, January 1, 2014
shear wall technology
RESIDENTIAL
BUILDINGS USING SHEAR WALL TECHNOLOGY
In recent times due to
globalization, the construction industry has started focusing on new innovative
ways of working. The construction industry has started adopting new
technologies and approaches in order to increase the overall efficiency of the
project. This report is about the modern methods of construction and smart
materials that can be used to improve the overall construction process.
The first half of the
report is on the “aluminum formwork systems” (Milan System) which is used for
mass housing construction. This system of aluminum forms is fast, durable, cost
effective and also produces quality work which requires minimum maintenance.
The second half of the report is on “green roofs” a smart material which is a
replacement for traditional roofs. Today in this modernized world where global
warming is the major concern for all countries, green roofs can be one of the
innovative ways to reduce the energy consumption which ultimately helps in
reducing the CO2 emissions.
The construction industry is one of the biggest industries in the whole world. The contribution of this industry towards the global GDP is enormous. The panels of aluminum form work are made from high strength aluminum alloy, with the face or contact surface of the panel, made up of 4 mm thick plate, which is welded to a formwork of specially designed extruded sections, to form a robust component. The panels are held in position by a simple pin and wedge arrangement system that passes through holes in the outside rib of each panel. The panel fits precisely, securely and requires no bracing. The walls are held together with high strength wall ties, while the decks are supported by beams and props.
Since
the equipment is made of aluminum, it has sections that are large enough to be
effective, yet light enough in the weight to be handled by a single worker.
Individual workers can handle all the elements necessary for forming the system
with no requirement for heavy lifting equipment or skilled labor. By ensuring
repetition of work tasks on daily basis it is possible for the system to bring
assembly line techniques to construction site and to ensure quality work, by
unskilled or semi-skilled workers.
Trial
erection of the formwork is carried out in factory conditions which ensure that
all components are correctly manufactured and no components are missed out.
Also, they are numbered and packed in such a manner so as to enable easy site
erection and dismantling.
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