COMPONENTS OF THE PEB STRUCTURE

 

  COMPONENTS OF THE PEB STRUCTURE

 

 

Pre-Engineered Buildings (PEBs) are the building components that are manufactured at a factory and assembled on-site. Usually, PEBs are steel structures and can be an alternative to conventional structural steel buildings. PEB structural components are fabricated at the factory to the exact size, transported to the site, and assembled at the site, usually with bolted connections. This type of Structural Concept is generally used to build:

ü  Industrial and Small Manufacturing Buildings

ü  Small Retail and Commercial Office Buildings

ü  Warehouses and Storage Units

And Pre-Engineered Buildings (PEBs) are the building components that are mainly classified into two methods they are:

ü  Primary Steel Members

ü  Secondary Steel Members

 

PRIMARY STEEL MEMBERS:

 

COLUMN:

ü  It is a vertical structure, used to transfer vertical load. It is a compression member.

 

RAFTERS:

ü  Rafter is a sloped member. It runs from ridge to hip of the roof.

 

SECONDARY MEMBERS:

PURLINS:

Beam members carrying roof cladding. Purlins are top mounted on the rafter and transfer load from roof cladding to primary or main members.

 

LONGITUDINAL BRACING:

Provides lateral stability to the structure and helps transfer the lateral load to ground level. It is also known as diagonal bracing. Usually lies between two vertical columns.

 

ROOF BRACINGS:

They help to maintain lateral stability of the structure (Prevent shape deformability)

 

CLADDING:

Cladding will be seated either on purlin or girt. It provides skin resistance and resists lateral load (wind load).

 

·         ROOF CLADDING

A few proprietary types of cladding may be used in industrial buildings.

ü  Single skin trapezoidal sheeting

ü  Double skin system

ü  Standing seam sheeting

ü  Composite or sandwich panel.

Ø  Flat

Ø  Wide profiled

Ø  Narrow profiled

Ø  Micro-profiled

Ø  Trapezoidal

Ø  Corrugated.

 

·         WALL CLADDING

ü  Numerous systems exist for the design of external walls for industrial buildings.

ü  Steel sheeting is frequently used due to its high quality.

ü  Sheeting generally supports on side rails.

 

SAG ROD:

ü  It prevents twisting and lateral bending. It is used to provide alignment of the member. It provides lateral support to purlin.

 

SIDE RAILS / GIRT:

ü  It is a horizontal structural member providing lateral support to wall cladding and it is also known as a girt.

 

FLANGE BRACINGS:

ü  It increases the efficiency of the rafter. It connects the rafter & purlin, Column & girt.

 

 

 Er. SP. ASWINPALANIAPPAN., M.E., (Strut/.,)., (Ph.D.,)

Structural Engineer

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