Comparison Between Pre-Engineered Building Structure & Conventional Structure
PRE-ENGINEERED BUILDING | CONVENTIONAL | |
STRUCTURE WEIGHT | 30%
lighter, Primary framing members tapered built-up plate sections,
with larger depths in areas of highest stress. Secondary members-light gauge roll formed 'Z' or 'C' shaped members are designed from scratch. |
Primary
steel members selected from "|" sections, used in many
segments are much heavier than what is actually required. Secondary members, selected from hot rolled '|' & 'C' sections, each steel structure is heavy. |
DESIGN | Quick & efficient. Basic designs are
used over & over. CAD programmes optimize material required.
Standard details minimize Project custom details. PEB designing
& detailing is done everyday, resulting in faster and more
efficient designs. |
Substantial engineering & detailing required
for every project. Each project, a separate case, needs more time to develop the design & details of the unique structure. |
DELIVERY | Shortest delivery period on an average of
6 to 8 weeks. |
Extended delivery period of nearly 20 to
26 weeks. |
FOUNDATIONS | Simple design, light weight, easy to construct. |
Extensive, heavy foundations required. |
ERECTION COST & TIMES | Cost & time factor are precisely known.
Erection process fast, easy, step by step with minimum requirement
of equipment. |
Cost & time factor not pre – determined.20-25%
more expensive. Erection slow, extensive field labour required, with a need of heavy equipment. |
SEISMIC RESISTANCE | The structure being flexible and of less
weight offer higher resistance to seismic disturbances. |
Heavy and rigid structures are vulnerable
in seismic zones. |
PRICE STRUCTURE | Per square meter prices are 30% less then
the conventional structures. |
Per square meter prices are very much higher. |
SOURCING & COORDINATION | The building structure is supplied complete
with cladding and all accessories, which include erection (on
demand) from single source. |
Due to the involvement of many agencies of
suppliers and sub-contractors, more time is required for Project
Management. |
RESPONSIBILITY | It will be the sole responsibility of the
supplier as it is a sort of Turn-Key Project. |
Due to involvement of various agencies, single
responsibility cannot be fixed. |