India’s largest clear span building, delivered by Interarch

For certain usage of a building, the design of a structure is extremely critical. In cement plants, one such utility is coal handling coupled with stacker and reclaimer. Here is an example of how PEBs can offer appropriate solutions.

In 2015, Interarch designed & engineered, manufactured and delivered the largest clear span building in India for UltraTech Cement Ltd in Rawan. The building is spread over an area of 35,000 sq m. Interarch’s scope of work included design & engineering, fabrication, supply & logistics, and erection of four buildings in Rawan, Chhattisgarh. The four buildings required were clear-span 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 international standards to achieve many challenges at the site. The erection of the 99.8 m clear span building was done near three operating conveyer belts surrounded by heaps of coal, dust in the environment and lack of space to erect the building, which caused lot of difficulty to the erection team. The Interarch team had to construct a crossover bridge and 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 the site to ensure the highest standards of safety and quality controlled execution. The total time taken for erection of the building was six months.

Project Key Features: Recipient of "Best PEB Project of the Year" by Construction Week India Awards 2015 for UltraTech Cement Ltd.

Project Feature
?$HS Bracing
??0 m bay spacing along the length of the building
??oof slope 1in 4
??uilding design as per IS 800-2007
??pecial tripod CHS portal frame
??re Galvanised purlin & girts
??hot blasted structure finished with epoxy paint
??ust load 0.5 KN/M2 on roof
??oof – 0.47 m Tracdek Hi-Rib bare Galvalume (550 Mpa)
??all – 0.50 M Tracdek Hi-Rib color coated Galvalume (550 Mpa)

Action against RMC plants
In the month of March 2016, 32 ready-mix-concrete (RMC) plants in the city of Mumbai were asked to shut down because of pollution caused in their operations, by the Maharashtra Pollution Control Board (MPCB). There were number of complaints filed against RMC operators regarding dust and noise pollution. A non-governmental organisation (NGO) – Watchdog Foundation – had taken up the cause for local residents.

ICR spoke to G Pimenta of ‘Watchdog.’
Kindly introduce your organisation ‘Watchdog’ to the readers.
We wish to introduce ourselves as a part of a non-governmental organisation i.e., Watchdog Foundation, which has launched a website www.thewatchdog.in that provides a networking platform for ordinary citizens to engage with governmental organisations, as we believe that citizen’s viewpoints are necessary for all-round holistic and workable solutions for social and civic problems.

Can you please provide us details of the complaints lodged by ‘Watchdog’ regarding dust pollution?
We have filed a number of complaints against RMC Plant Operators, as and when such complaints were reported to us by the locals. The said complaints were received from Malvani (3 plants), Kurla (2 plants) and Dahisar (2 plants).

How do the regulations regarding running of RMC plants in our city differ function?
We are not against running of RMC plants which adhere to the law of the land. Under RTI we have ferreted out information in as many as 33 cases, which shows that these RMC plants are not compliant with environmental norms and have openly flouted Consent to Operate granted by MPCB.

In your opinion, why do RMC producers not comply with the regulations?
The issue is twin-fold. Firstly it is profit motive and the higher capital costs involved in clean technologies and there being no incentives from the government to use and promote environment friendly green technology.

Do you feel that shutting down of a running RMC plant is the only answer to the problems?
Shutting down any industry is no good answer, but at the same time adherence to law is also equally important and many a times it is found that these RMC plants do comply with the stipulations stated in Consent to Operate.

For more information,
please contact: info@interarchbuildings.com
or visit www.interarchbuildings.com