With this lecture, you will be able to understand, how it is more cost effective as well as less time time taking in fabrication and erections as far as using PEB(Pre-Engineered Building) construction over conventional steel is concerned. I am attaching here the lecture content in pdf as well in PPT.
Also abstract of total steel used in PEB as well as in conventional steel have been highlighted. With this, you will be able to understand, how weight is drastically reduced if PEB designed concept is used. One example has taken to differentiate between the two by keeping building configuration same.
PEB VS ConventionalSteel Building in Tabular Form
| Building(PEB) | Conventional Building | |
| Erection Cost & Time | Both cost & time of erection is accurately known based on extensive experience with similar buildings. PEBs are often erected by specialized builders. PEB builders usually have stock of standard components in their camps enabling them to complete jobs on time. Erection process is easy, fast, step by step and with hardly any requirement for equipment. | Typically they are 20% more expensive than PEB. In most of the cases, erection time & cost is not estimated accurately. |
| Structural Weight | Pre-Engineered buildings on the average 30% lighter through the efficient use of steel. Primary framing members are tapered (varying depth) built-up plate sections with larger depths in the areas of highest stress. Secondary members are light gage (light weight) roll formed (low labor cost) “Z” or “C” shaped members. | Primary steel members are selected from standard hot rolled “I” sections, which are, in many segments of the members, heavier than what is actually required by design. Members have constant cross-sections regardless of varying magnitude of the local stresses along the member length. Secondary members are selected from standard hot rolled “I” or “Channel “sections which are heavier. |
For Seeing detailed sample calculation, refer attached link for pdf.
Total weight of structural steel used in PEB building =27.8 MT
Total weight of structural steel used in Conventional steel building =38.4MT
% age saving = (38.4-27.8)/27.8×100=38.1, say 38 %
Hence, in this comparative study of steel used in PEB and conventional steel building, it is found
that the steel can be saved up to 39 %.
Conclusion: In general practice, on an average, as compared to conventional building, percentage
of steel is saved up to 30 % in PEB
Other advantage of PEB as compared to conventional steel building has explained above
in tabular form.
Download Lecture in Pdf.
https://drive.google.com/file/d/1YHBqDWUqIPgZzUBkJXKp7JHQa2pIgUm_/view?usp=sharing
Dwonload lecture abstract in PPT.
From above discussion, it is concluded that Pre-Engineered Building is far more advantageous than conventional steel building. It saves time & money.