THE PRE-ENGINEERED BUILDING CONCEPT

The primary framing system

In conventional steel buildings, mill-producedhot rolled sections (beams and columns)are used. The size of each member is selectedon the basis of the maximum internal stress inthe member.

Since a hot rolled section has a constant depth,many parts of the member (represented by thehatched area), in areas of low internal stresses,are in excess of design requirements.

Frames of pre-engineered buildings are madefrom an extensive inventory of standard steelplates stocked by the PEB manufacturer. PEBframes are normally tapered and often haveflanges and webs of variable thicknesses alongthe individual members.

The frame geomentry matches the shape of theinternal stress (bending moment) diagram thusoptimizing material usage and reducing the totalweight of the structure.

The secondary framing system

“Z” shaped roof purlins and wall girts are usedfor the secondary framing. They are lighter thanthe conventional hot-rolled “I” or “C” shapedsections in conventional steel buildings.

Nesting of the “Z” shaped members at theframes allows them to act as continuous membersalong the length of the building. This doublesthe strength capacity of the “Z” shaped membersat the laps where the maximum internal stressesnormally occur.

Continuous members

Nesting of two purlinsStrength capacity is doubled at the lap

Pre-Engineered Steel Frame

Conventional Steel Frame

PO Box 877 Dammam 31421 Saudi Arabia Phone (966 3) 847 1840 Fax (966 3) 847 1291 saudimarketing@zamilsteel.com

The information contained herein is accurate as of the date of its issue. Zamil Steel reserves the right to make changes, without prior notice, when deemed necessary for thepurpose of product improvement or otherwise. Please contact your nearest Zamil Steel representative for current offering.

www.zamilsteel.com

Pre-Engineered Buildings are on the average 30%lighter through the efficient use of steel. Primaryframing members are tapered (varying depth) built-upsections, with large depths in the areas of higheststress.

Secondary members are light gage (light weight) roll-formed (low labor cost) “Z” or “C” shaped members.

Quick and efficient; since PEBs are mainly formed ofstandard sections and connections, design time issignificantly reduced. Basic designs, based oninternational design standards and codes, are usedover and over.

Specialized computer analysis and design programsoptimize material required. Drafting is alsocomputerized using standard details that minimize theuse of project custom details.

Design, shop detail sketches and erection drawingsare supplied free of charge by the manufacturer.Approval drawings are usually prepared within 2weeks.

PEB engineers design and detail pre-engineeredbuildings almost every day throughout the yearresulting in faster and more efficient designs.

Consultant’s in-house design and drafting time isconsiderably reduced, allowing more time forco-ordination and review, and reduction in design fees.

Average 6 to 8 weeks.

Simple design, easy to construct and light weight.

Since the connections of the components are standard,the learning curve of erection for each subsequentproject is faster.

Periodic free-of-charge erection support at the site isusually provided by PEB manufacturers.

Both costs and time of erection are accurately knownbased upon extensive experience with similarbuildings.

PEBs are often erected by specialized PEB builderswith extensive experience in the erection of similarbuildings, offering very competitive rates. PEB buildersusually have a stock of standard components, enablingthem to complete jobs on time should any shortage orsite damage occur to materials.

The erection process is easy, fast, step by step andwith hardly any requirement for equipment.

The low-weight flexible frames offer higher resistanceto seismic forces.

Primary steel members are selected from standard hotrolled “I” sections, which are, in many segments of themembers, heavier than what is actually required bydesign. Members have constant cross-sectionsregardless of the varying magnitude of the local(internal) stresses along the member length.

Secondary members are selected from standard hotrolled “I” or “C” sections, which are heavier.

Each conventional steel structure is designed fromscratch by the Consultant, with fewer design aidsavailable to the Engineer.

Substantial engineering and detailing work is requiredon every project. Generalized computer analysisprograms require extensive input/output and designalterations.

Extensive amount of consultant time is devoted todesign and drafting, as well as co-ordination andreview, often resulting in a significant expense.

As each project is a separate case, engineers needmore time to develop the designs and details of theunique structure.

More complicated design, requiring extensive designand drafting time from Consultants.

Average 20 to 26 weeks.

Extensive, heavy foundations required.

The connections are normally complicated and differfrom project to project, resulting in longer learningcurves of erection for new projects.

Typically, conventional steel buildings are 20% moreexpensive than PEB. In most of the cases, the erectioncosts and time are not estimated accurately.

Erection is slow and extensive field labor is required.Heavy equipment is often needed.

Rigid heavy weight structures do not perform well inseismic zones.

PRE-ENGINEERED STEELBUILDINGS (PEBS)

CONVENTIONAL STEELBUILDINGS

Structure Weight

Design

Delivery

Foundations

ErectionSimplicity

Erection Cost andTime

SeismicResistance

Price per square meter may be as much as 30% lowerthan conventional steel.

Outstanding architectural design can be achieved atlow cost using standard architectural features andinterface details. Traditional wall and fascia materials,such as concrete, masonry and wood, can be utilized.

Building is supplied complete with cladding and allaccessories, including erection (if desired), from a single“one stop” source.

PEB manufacturers usually stock a large amount ofbasic raw materials that can be flexibly used in manytypes of PEB projects.

Change orders are easily accommodated at all stagesof the order fulfillment process. Little or no material iswasted even if a change order is made afterfabrication starts.

Designed to fit the system with standardized andinterchangeable parts, including pre-designedflashing and trims. building accessories are massproduced for economy and are available with thebuilding. They have been tried in thousands ofexisting buildings.

All project records are safely and orderly kept inelectronic format indefinitely, making it easy for the owneror designer to obtain a copy of his building records atany time.

Future expansion is simple, easy and cost effective.One supplier can co-ordinate changes.

Single source of supply results in total responsibilityby one supplier, including design liability. PEBmanufacturers can be relied upon to service theirbuildings, long after they are supplied, to protect theirreputation.

All components have been specified and designedspecifically to act together as a system for maximumefficiency, precise fit, and peak performance in thefield.

Experience with similar buildings, in actual fieldconditions worldwide, has resulted in designimprovements over time, which allow dependableprediction of performance.

Zamil Steel is a global supplier of pre-engineeredbuildings to over 75 countries. The company hasacquired extensive experience in the performance ofPEBs in different climatic conditions.

Make ZAMIL STEEL your Global Partner.

Higher price per square meter.

Special architectural design and features must bedeveloped for each project, which often requireresearch and thus resulting in much higher costs.

Many sources of supply considerable: projectmanagement time is required to co-ordinate suppliersand sub-contractors.

Substitution of hot rolled sections, that are infrequentlyrolled by mills, is expensive and time consuming.

Change orders that are made, after hot rolledsections are shipped for fabrication, often result inredundancies to a lot of hot rolled sections, whichultimately result in more cost to the enduser.

Every project requires special design for accessoriesand special sourcing for each item. Flashing and trimsmust be uniquely designed and fabricated.

It would be difficult to obtain project records, after along period of time. It is required to contact morethan one party, involved in the project, to obtainaccurate information.

Future expansion would be more difficult and, morelikely, costlier.

Multiple responsibilities can result in questions of whois responsible when components do not fit properly,insufficient material is supplied, or materials fail toperform, particularly at the supplier/contractorinterface. The consultant carries total design liability.

Components are custom designed for a specificapplication on a specific job. Design and detailingerrors are possible when assembling the diverse com-ponents into unique buildings.

Each building design is unique, so prediction of howcomponents will perform together is uncertain.Materials which have performed well in some climatesmay not do so in other environments.

Normally, suppliers of conventional steel are orientedto their local markets with experience in local climaticconditions only.

PRE-ENGINEERED STEELBUILDINGS (PEBS)

CONVENTIONAL STEELBUILDINGS

OverallPrice

Architecture

Sourcing andCo-ordination

Cost of ChangeOrders

BuildingAccessories

FutureExpansions

Safety andResponsibility

Performance

GlobalExperience

Pre-Engineered Buildings are on the average 30%lighter through the efficient use of steel. Primaryframing members are tapered (varying depth) built-upsections, with large depths in the areas of higheststress.

Secondary members are light gage (light weight) roll-formed (low labor cost) “Z” or “C” shaped members.

Quick and efficient; since PEBs are mainly formed ofstandard sections and connections, design time issignificantly reduced. Basic designs, based oninternational design standards and codes, are usedover and over.

Specialized computer analysis and design programsoptimize material required. Drafting is alsocomputerized using standard details that minimize theuse of project custom details.

Design, shop detail sketches and erection drawingsare supplied free of charge by the manufacturer.Approval drawings are usually prepared within 2weeks.

PEB engineers design and detail pre-engineeredbuildings almost every day throughout the yearresulting in faster and more efficient designs.

Consultant’s in-house design and drafting time isconsiderably reduced, allowing more time forco-ordination and review, and reduction in design fees.

Average 6 to 8 weeks.

Simple design, easy to construct and light weight.

Since the connections of the components are standard,the learning curve of erection for each subsequentproject is faster.

Periodic free-of-charge erection support at the site isusually provided by PEB manufacturers.

Both costs and time of erection are accurately knownbased upon extensive experience with similarbuildings.

PEBs are often erected by specialized PEB builderswith extensive experience in the erection of similarbuildings, offering very competitive rates. PEB buildersusually have a stock of standard components, enablingthem to complete jobs on time should any shortage orsite damage occur to materials.

The erection process is easy, fast, step by step andwith hardly any requirement for equipment.

The low-weight flexible frames offer higher resistanceto seismic forces.

Primary steel members are selected from standard hotrolled “I” sections, which are, in many segments of themembers, heavier than what is actually required bydesign. Members have constant cross-sectionsregardless of the varying magnitude of the local(internal) stresses along the member length.

Secondary members are selected from standard hotrolled “I” or “C” sections, which are heavier.

Each conventional steel structure is designed fromscratch by the Consultant, with fewer design aidsavailable to the Engineer.

Substantial engineering and detailing work is requiredon every project. Generalized computer analysisprograms require extensive input/output and designalterations.

Extensive amount of consultant time is devoted todesign and drafting, as well as co-ordination andreview, often resulting in a significant expense.

As each project is a separate case, engineers needmore time to develop the designs and details of theunique structure.

More complicated design, requiring extensive designand drafting time from Consultants.

Average 20 to 26 weeks.

Extensive, heavy foundations required.

The connections are normally complicated and differfrom project to project, resulting in longer learningcurves of erection for new projects.

Typically, conventional steel buildings are 20% moreexpensive than PEB. In most of the cases, the erectioncosts and time are not estimated accurately.

Erection is slow and extensive field labor is required.Heavy equipment is often needed.

Rigid heavy weight structures do not perform well inseismic zones.

PRE-ENGINEERED STEELBUILDINGS (PEBS)

CONVENTIONAL STEELBUILDINGS

Structure Weight

Design

Delivery

Foundations

ErectionSimplicity

Erection Cost andTime

SeismicResistance

Price per square meter may be as much as 30% lowerthan conventional steel.

Outstanding architectural design can be achieved atlow cost using standard architectural features andinterface details. Traditional wall and fascia materials,such as concrete, masonry and wood, can be utilized.

Building is supplied complete with cladding and allaccessories, including erection (if desired), from a single“one stop” source.

PEB manufacturers usually stock a large amount ofbasic raw materials that can be flexibly used in manytypes of PEB projects.

Change orders are easily accommodated at all stagesof the order fulfillment process. Little or no material iswasted even if a change order is made afterfabrication starts.

Designed to fit the system with standardized andinterchangeable parts, including pre-designedflashing and trims. building accessories are massproduced for economy and are available with thebuilding. They have been tried in thousands ofexisting buildings.

All project records are safely and orderly kept inelectronic format indefinitely, making it easy for the owneror designer to obtain a copy of his building records atany time.

Future expansion is simple, easy and cost effective.One supplier can co-ordinate changes.

Single source of supply results in total responsibilityby one supplier, including design liability. PEBmanufacturers can be relied upon to service theirbuildings, long after they are supplied, to protect theirreputation.

All components have been specified and designedspecifically to act together as a system for maximumefficiency, precise fit, and peak performance in thefield.

Experience with similar buildings, in actual fieldconditions worldwide, has resulted in designimprovements over time, which allow dependableprediction of performance.

Zamil Steel is a global supplier of pre-engineeredbuildings to over 75 countries. The company hasacquired extensive experience in the performance ofPEBs in different climatic conditions.

Make ZAMIL STEEL your Global Partner.

Higher price per square meter.

Special architectural design and features must bedeveloped for each project, which often requireresearch and thus resulting in much higher costs.

Many sources of supply considerable: projectmanagement time is required to co-ordinate suppliersand sub-contractors.

Substitution of hot rolled sections, that are infrequentlyrolled by mills, is expensive and time consuming.

Change orders that are made, after hot rolledsections are shipped for fabrication, often result inredundancies to a lot of hot rolled sections, whichultimately result in more cost to the enduser.

Every project requires special design for accessoriesand special sourcing for each item. Flashing and trimsmust be uniquely designed and fabricated.

It would be difficult to obtain project records, after along period of time. It is required to contact morethan one party, involved in the project, to obtainaccurate information.

Future expansion would be more difficult and, morelikely, costlier.

Multiple responsibilities can result in questions of whois responsible when components do not fit properly,insufficient material is supplied, or materials fail toperform, particularly at the supplier/contractorinterface. The consultant carries total design liability.

Components are custom designed for a specificapplication on a specific job. Design and detailingerrors are possible when assembling the diverse com-ponents into unique buildings.

Each building design is unique, so prediction of howcomponents will perform together is uncertain.Materials which have performed well in some climatesmay not do so in other environments.

Normally, suppliers of conventional steel are orientedto their local markets with experience in local climaticconditions only.

PRE-ENGINEERED STEELBUILDINGS (PEBS)

CONVENTIONAL STEELBUILDINGS

OverallPrice

Architecture

Sourcing andCo-ordination

Cost of ChangeOrders

BuildingAccessories

FutureExpansions

Safety andResponsibility

Performance

GlobalExperience

THE PRE-ENGINEERED BUILDING CONCEPT

The primary framing system

In conventional steel buildings, mill-producedhot rolled sections (beams and columns)are used. The size of each member is selectedon the basis of the maximum internal stress inthe member.

Since a hot rolled section has a constant depth,many parts of the member (represented by thehatched area), in areas of low internal stresses,are in excess of design requirements.

Frames of pre-engineered buildings are madefrom an extensive inventory of standard steelplates stocked by the PEB manufacturer. PEBframes are normally tapered and often haveflanges and webs of variable thicknesses alongthe individual members.

The frame geomentry matches the shape of theinternal stress (bending moment) diagram thusoptimizing material usage and reducing the totalweight of the structure.

The secondary framing system

“Z” shaped roof purlins and wall girts are usedfor the secondary framing. They are lighter thanthe conventional hot-rolled “I” or “C” shapedsections in conventional steel buildings.

Nesting of the “Z” shaped members at theframes allows them to act as continuous membersalong the length of the building. This doublesthe strength capacity of the “Z” shaped membersat the laps where the maximum internal stressesnormally occur.

Continuous members

Nesting of two purlinsStrength capacity is doubled at the lap

Pre-Engineered Steel Frame

Conventional Steel Frame

PO Box 877 Dammam 31421 Saudi Arabia Phone (966 3) 847 1840 Fax (966 3) 847 1291 saudimarketing@zamilsteel.com

The information contained herein is accurate as of the date of its issue. Zamil Steel reserves the right to make changes, without prior notice, when deemed necessary for thepurpose of product improvement or otherwise. Please contact your nearest Zamil Steel representative for current offering.

www.zamilsteel.com