| 1 |
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. |
| 2 |
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. |
| 3 |
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. |
| 4 |
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. |
| 5 |
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. |
| 6 |
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. |
| 7 |
Superior architectural features can be incorporated and excellent aesthetics can be achieved |
Limited scope for architectural & aesthetic features, |
| 8 |
Easier to incorporate future expansions due to modular nature of design |
More difficult to incorporate expansions, |
| 9 |
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. |
| 10 |
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. |
| 11 |
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. |
| 12 |
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. |
