||PEB frames are normally tapered and often have flanges and webs of variable thicknesses & depth along the individual members
||In conventional steel buildings mill-produced hot rolled sections (beams and columns) are used. The size of each member is selected on the basis of the maximum internal stress in the members.
||PEBs are on an average about 30% lighter due to efficient design and use of steel.
||Standard hot rolled “I” or “C” sections are used, which are in many segments much heavier than what is actually required as per design.
||Fast, efficient designing and detailing due to well defined international codes and standard by using specialized software.
||Each conventional structure is designed from scratch by the consultant with fewer design aids available.
||Detailed structural drawings including erection and sheeting are provided free of cost, thereby considerably reducing erection & sheeting time.
||An extensive amount of consultant’s time is devoted to designing , drafting & detailing of the structure.
||All structures are manufactured in the factory under strict quality control environment, thereby ensuring superior quality & finish.
||Structures are mostly site fabricated whereas, it is difficult to monitor & control quality parameters.
||Easier sourcing & co-ordination due to single source responsibility as the entire building along with all the sheeting & accessories is designed, supplied & erected.
||Multiple sources for different items are involved, thereby causing considerable expenditure & delay.
||Superior architectural features can be incorporated and excellent aesthetics can be achieved
||Limited scope for architectural & aesthetic features,
||Easier to incorporate future expansions due to modular nature of design
||More difficult to incorporate expansions,
||Single source of supply results in efficient time and cost management for a speedy construction.
||Multiple sources/ responsibilities can lead to many questions and lack of corporation.
||Faster completion time – as civil works can be completed at the same time.
||Much slower completion time, exact date could not be given as it is dependent on various other concepts.
||Cost per SQM is about 30% cheaper than conventional structures
||Cost is higher due to higher consumption of steel and other co-ordination issues involved.
||There is no field welding. All the members are connected together by bolting. Which lead to speed erection
||All connections are field welding that consumes more time.