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India’s Largest Clear Span Building -Delivered by Interarch
(99.8 M Clear Span for Ultratech Cement Ltd)
Interarch in 2015 designed & engineered, manufactured and delivered largest clear span building in India for Ultratech Cement Ltd in Rawan .The building is spread over the area of 35,000 Sqm. Interarch’s scope of work included design & engineering, fabrication, supply & Logistic, and erection of 4 buildings in Rawan, Chhattisgarh. The 4 buildings required were clear-spans buildings ranging from 62 M, 85 M, and 95 M to 99.8 M

On the basis of customer needs and functional usage, Interarch’s expert design & engineering team proposed an open web portal frame structure for the 99.8 M clear span building using CHS sections & other three buildings in built-up sections. The building was designed for the seismic zone 3 and IS 800:2007. The loading design has been applied on the structure in accordance with IS-875 (Part 1, 2 &3)

The pipe structure once completed will be one of the biggest milestones in Interarch’s recent history. Once erected the building will span 99.8 M wide & 353 M long, with a clear height of 24 M at the peak

Interarch certified builders and employees had to work under very stringent quality & safety conditions in line with the international standard to achieve many challenges at site. The erection of the 99.8 M clear span building was done near 3 operating conveyer belts surrounded by heaps of coal , Dust in the environment and lack of space to erect the building caused lot of difficulty to the erection team . Interarch team had to construct a cross over bridge, constantly spray water to keep the dust settled. All workers wore face masks and safety goggles to tackle the dust.

Interarch deployed almost 15-20 dedicated safety and quality engineers at site to ensure the highest standards of Safety and quality controlled execution. The total time taken for erection of the building was 6 Month.

Ultratech Cement Ltd is the largest manufacturer of grey cement, Ready Mix Concrete (RMC) and white cement in India. It is also one of the leading cement producers globally. Ultratech Cement has 12 integrated plants, 1 clinkerisation plant, 16 grinding units and 6 bulk terminals. Its operations span across India, UAE, Bahrain, Bangladesh and Sri Lanka. Ultratech Cement is also India's largest exporter of cement reaching out to meet the demand in countries around the Indian Ocean and the Middle East.

Project Key Features
Project Name Ultratech Cement Limited (Unit - Rawan Cement Works)
Project Location Rawan , Chattisgarh
Building Usage Coal Stacker & Re - claimer Covering Shed
Tonnage 2115 MT
Length 353 M
Width 99.8 M Clear Span
Height 14 M height at eave and 24 M at ridge
Area of Project 35,000 Sq. M
Project Feature
CHS Bracing
10 m bay spacing along the length of the building
Roof slope 1in 4
Building design as per IS 800-2007
Special tripod CHS portal frame
Pre Galvanized purlin & girts
Shot blasted structure finished with epoxy paint
Dust load 0.5 KN/M2 on roof
Roof - 0.47 m Tracdek Hi-Rib bare Galvalume (550 Mpa)
Wall - 0.50 M Tracdek Hi-Rib color coated Galvalume (550 Mpa)

Interarch Building Products has been awarded “Best PEB Project of the Year“
By Construction Week India Awards 2015 for Ultratech Cement Ltd
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