steel framing

MEMBER - LIGHT GAGE STRUCTURALMEMBER - LIGHT GAGE STRUCTURAL INSTITUTE INSTITUTE

SHEARCENTER

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y

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GAUGE

R=0.1875D

d

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Pattern A Pattern D and E

SHEARCENTER

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EAVE STRUT

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STEEL FRAMING COMPONENTS

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Welcome to the World ofPROLAMSA!

Thank you for your interest in PROLAMSA, Mexico’s largest producerof “as welded” mechanical tubing, secondary building componentsand shapes.

PROLAMSA, a leader throughout Latin America, is expanding itssecondary building components lines, and we are pleased to providethis catalog for your use. The following pages contain technicalspecifications. At the back you’ll find sales literature about ourproducts.

Because we refine our product offerings to make certain you can getwhat you need, some of this information may change. To insure youhave the latest information available, please visit our Web site atwww.prolamsa.com.

For pricing and product information, you may also:� email us: [email protected] � call us: 281-494-0900� fax us: 281-494-0990

We look forward to serving you.

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TABLE OF CONTENTSCommercial / Industrial

General Notes....………………………………..… 4Manufacturing & Product Information……..… 5Definitions of Loads & Lap Conditions…....… 6Punching Patterns for Cees & Zees…............. 9Lap Patterns for Cees & Zees…………..…..... 11Punching Patterns for Eave Struts……...…... 15C-Section Specifications & Properties........... 19Z-Section Specifications & Properties......….. 20Eave Struts, Angles & Channels………...….... 21Hats & Girts…………………………………….....22Light Gage Structural Institute........................ 23LGSI Framing System Design

Handbook…………………………. Please Inquire

In a continuing effort to refine and improve products, PROLAMSA reserves theright to discontinue products at any time or change specifications and/or designswithout incurring obligation. To insure you have the latest information available,please inquire or visit our Web site at http://www.prolamsa.com.

Application details are for illustration purposes only and may not be appropriatefor all environmental conditions or building designs. Projects should beengineered to conform to applicable building codes, regulations, and acceptedindustry practices.

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GENERAL NOTES

PROLAMSA offers a complete line of structural shapes, formed usinghigh strength steel, ASTM A-570 (55,000 psi min. yield point),finished with a baked-on red oxide primer finish or G-90 galvanizedfinish.

Substructural components from PROLAMSA are manufactured inLight Gage Structural Institute (LGSI) sections. LGSI sections havebeen found to have numerous advantages, including greater ease ofinstallation. Consult the LGSI technical manual for proper productapplication.

All standard structural shapes (except eave struts, hats and girts) areroll-formed to ensure a maximum quality finished product.

Standard web and flange punching are available upon request.

Custom punching is another feature that PROLAMSA provides.Please contact our office for pricing and availability.

PROLAMSA produces many open shapes and sizes that can bemanufactured to your design specifications.

Consult the Light Gage Structural Institute (LGSI) Manual for engineering information. 5


MANUFACTURING & PRODUCT INFORMATION

1. Standard Z-Sections (Zees) are manufactured with unsymmetricaland symmetrical flange.

2. All C-Sections (Cees) are manufactured with symmetrical flangesonly.

3. Cee and Zee purlins are supplied in either of two finishes: RedOxide Primer and Galvanized.

4. Cee purlins web sizes range from 4” to 14” in half-inch steps.5. Cee purlins flange are the same size, and range from 2” to 4”.6. Zee purlins web sizes range from 3-1/2” to 14” in one-inch

steps.7. Zee purlins nominal flange standard sizes come with different

actual flange widths.8. Web punching is available on 6” to 12” Zees and 6” to 10” Cees.

Punching is not available on 4” or smaller Cees and Zees.9. Flange punching is available on 8” to 10” Cees and Zees.

10. Perforation sizes are 5/8” x 3/4” slots.11. Three web punching patterns are available. Pattern A is

standard; patterns C and B are optional.12. Minimum Lengths:

Non-punched purlins: 7’- 0”Punched purlins: • Patterns A and D 9’-1”• Patterns B and E 12’-6”• Patterns C and F 8’-0”• Pattern G 7’-0”

NOTES:Red oxide components are painted with primers designed for short-term field protectionduring the erection process. Handling scratches and abrasions are common and will rustif not touched up promptly.

Consult the Light Gage Structural Institute (LGSI) Manual for engineering information.6


DEFINITIONS OF LOADS & LAP CONDITIONS

LIVE LOAD (ROOF)Live loads are loads that are produced both during and afterconstruction by movable objects other than wind, snow, seismic anddead loads.

Frequently used values for live loads are shown in this table.

ROOF LIVE LOADSLoaded Area for Any Structural Member (FT2)

Roof Slope 0-200 200-600 Over 600.25:12 to 4:12 20 16 124:12 to 12:12 16 14 12Over 12:12 12 12 12

SNOW LOADThe value used for snow load will be specified by your local buildingcodes. Special conditions that will encourage heavier than normalaccumulations should be considered, such as multiple gables, abruptchanges in roof elevation, etc.

WIND LOADWind load is the amount of load that is imposed on a structure as aresult of wind in any horizontal direction. The value you use for windload is determined by local building codes. Wind action on a structurecauses forces to be applied on all exposed surfaces. Determining thewind load value for a roof or wall requires the use of coefficients.

The sample calculations refer to the coefficients in this table.

SURFACE MEMBER TYPE SYMBOLROOF PURLINS RCOEF

WALLS GIRTS WCOEF



To obtain the values for these coefficients, refer to local buildingcodes. Typical values for RCOEF and WCOEF are 1.2 and 1.1respectively. These apply only to enclosed buildings with a roof slopeof less than 10 degrees.

DEAD LOADDead load is the weight of the building components that are beingsupported by the section.

COLLATERAL LOADCollateral load is the weight of additional permanent materials, suchas sprinklers, mechanical and electrical systems, partitions andceiling. Collateral loads do not include dead loads.



LOAD COMBINATIONSThe value for live load in the sample calculations is the larger of liveload and snow load, as defined above. This value is combined withdead load and collateral load in the sample calculations under theheading DEAD + LIVE load.

STRUCTURAL MATERIAL SPECIFICATIONSFor all Cee, Zee and Eave Strut sections:Fu = 64.7 ksiFy = 55.0 ksi

LAP CONDITIONS



WEB PUNCHING PATTERNS FOR CEES & ZEES

NOTES:1. Common flange punching Pattern D has Pattern A in the web. Common flange punching Pattern E has Pattern B in the web.2. Punching is not available on 4” or smaller Cees and Zees.3. All slots are 5/8” x 3/4”.

Pattern C

Pattern B

Pattern A

Pattern G

Common End

Web punching isavailable on all 6” – 10”Zees and Cees and12” Zees.



FLANGE PUNCHING PATTERNS FOR CEES & ZEES

NOTES:1. Common flange punching Pattern D has Pattern A in the web. Common flange punching Pattern E has Pattern B in the web.2. Punching is not available on 4” or smaller Cees and Zees.3. All slots are 5/8” x 3/4”.

Flange punching isavailable on 8” and 10”Zees and Cees.

Patterns D and E

Pattern F



LAP PATTERNS FOR CEES & ZEESPattern A

TOTAL LAP

LONG LAP

TOTAL LAP

SHORT LAP

SIMPLE SPAN

TYPICAL FLANGE BRACE

TYPICAL



LAP PATTERNS FOR CEES & ZEESPattern A (continued)

TOTAL LAP

MAX LAP

TOTAL LAP

THREE FOOT OFFSET LAP

Consult the Light Gage Structural Institute(LGSI) Manual for engineering information. 13


LAP PATTERNS FOR CEES & ZEESPattern B

(includes all laps available in Pattern A)

FLANGE

OFFSET LAP

FIVE FOOT

BRACE

TOTAL LAP

TOTAL LAP

SUPER LAP



LAP PATTERNS FOR CEES & ZEESPattern C

TYPICAL

SIMPLE SPAN

TOTAL LAP

SHORT LAP

TOTAL LAP

LONG LAP



PUNCHING PATTERNS FOR 8” x 5” x 5” EAVE STRUTSStandard

NOTES1. All slots are 5/8” x 3/4”.2. Eave strut is 14 gauge.3. Universal eave strut is designed for all roof slopes 1:12 through 4:12.

UNIVERSAL SINGLE SLOPE DOUBLE SLOPE

FLANGE PUNCHING SIDE VIEW



PUNCHING PATTERNS FOR 8” x 5” x 5” EAVE STRUTSOptional

SLOPE DOUBLE UNIVERSAL

SLOPE SINGLE


NOTES:1. All slots are 5/8” x 3/4”.2. Eave strut is 14 gauge.



PUNCHING PATTERNS FOR 8” x 5” x 2-3/4” EAVE STRUTSStandard


LOW EAVEDOUBLE SLOPE

HIGH EAVEDOUBLE SLOPE

LOW EAVESINGLE SLOPE

HIGH EAVESINGLE SLOPE




PUNCHING PATTERNS FOR 8” x 5” x 2-3/4” EAVE STRUTSOptional



HIGH EAVE

SINGLE SLOPE DOUBLE SLOPE LOW EAVE HIGH EAVE

DOUBLE SLOPE SINGLE SLOPE LOW EAVE



C-SECTION SPECIFICATIONS & PROPERTIES

D

dB

GAUGE

R=0.1875”

y

x x

y

XoX

NOTES:• Consult the LGSI technical manual for proper product

application, design details, and other product information• All Cees available in Red Oxide Primer and Galvanized finish.• Properties are based on ASTM A570/A607 Grade 55 or 60

having a minimum yield strength of 55 ksi.

C-SECTIONS

Section D B d R Area Gauge wt/ft Ix Sx rx Iy Sy ry x bar Ixy

in. in. in. in. in.2 Minimum lb in.4 in.3 in. in.4 in.3 in. in. in.4

12 X 3.5 C 12 3.5 0.885 0.1875 2.093 12 (0.096") 7.271 43.753 7.292 4.572 3.069 1.171 1.211 0.879 1.493

12 X 3.5 C 12 3.5 0.800 0.1875 1.396 14 (0.069") 5.195 29.370 4.895 4.587 2.043 0.773 1.210 0.855 0.941

10 X 3.5 C 10 3.5 0.885 0.1875 1.883 12 (0.096") 6.542 28.452 5.690 3.887 2.909 1.150 1.243 0.971 1.238

10 X 3.5 C 10 3.5 0.800 0.1875 1.256 14 (0.069") 4.673 19.134 3.827 3.904 1.938 0.759 1.242 0.947 0.781

10 X 2.5 C 10 2.5 0.885 0.1875 1.673 12 (0.096") 5.812 23.311 4.662 3.732 1.275 0.682 0.873 0.632 0.854

10 X 2.5 C 10 2.5 0.800 0.1875 1.116 14 (0.069") 4.152 15.683 3.137 3.749 0.852 0.451 0.874 0.610 0.542

8 X 3.5 C 8 3.5 0.885 0.1875 1.673 12 (0.096") 5.812 16.918 4.229 3.180 2.710 1.123 1.273 1.086 0.984

8 X 3.5 C 8 3.5 0.800 0.1875 1.116 14 (0.069") 4.152 11.410 2.852 3.198 1.807 0.741 1.273 1.061 0.621

8 X 3.5 C 8 3.5 0.773 0.1875 0.94 16 (0.056") 3.321 9.651 2.413 3.204 1.523 0.623 1.273 1.053 0.514

8 X 2.5 C 8 2.5 0.885 0.1875 1.463 12 (0.096") 5.083 13.645 3.411 3.054 1.194 0.669 0.903 0.715 0.678

8 X 2.5 C 8 2.5 0.800 0.1875 0.976 14 (0.069") 3.631 9.209 2.302 3.072 0.799 0.442 0.905 0.692 0.431

8 X 2.5 C 8 2.5 0.773 0.1875 0.822 16 (0.056") 2.905 7.791 1.948 3.078 0.674 0.372 0.906 0.685 0.357

6 X 2.5 C 6 2.5 0.800 0.1875 0.836 14 (0.069") 3.110 4.686 1.562 2.368 0.729 0.429 0.934 0.802 0.320

6 X 2.5 C 6 2.5 0.773 0.1875 0.704 16 (0.056") 2.488 3.971 1.324 2.374 0.615 0.361 0.935 0.795 0.265

4 X 2.5 C 4 2.5 0.800 0.1875 0.696 14 (0.069") 2.589 1.834 0.917 1.624 0.630 0.408 0.952 0.957 0.2094 X 2.5 C 4 2.5 0.773 0.1875 0.586 16 (0.056") 2.071 1.559 0.780 1.631 0.532 0.343 0.953 0.949 0.173

Gross Section Properties

DIMENSIONS PROPERTIES OF FULL SECTIONAxis x-x Axis y-y



Z-SECTION SPECIFICATIONS & PROPERTIES

SHEARCENTER

x x

y

yB1

B2

d

R=0.1875”

50

D

NOTES:• Consult the LGSI technical manual for proper product

application, design details, and other product information.• All Zees available in Red Oxide Primer and Galvanized finish.• Properties are based on ASTM A57/A607 Grade 55 or 60

having a minimum yield strength of 55 ksi.

GAUGE

Z-SECTIONS

Section D B1 B2 d g R Area Gauge wt/ft Ix Sx rx Iy Sy ry y bar Ixy

in. in. in. in. deg in. in.2 Minimum lb in.4 in.3 in. in.4 in.3 in. in. in.412 X 3.5 Z 12 3.125 3.375 0.990 50 0.1875 2.093 12 (0.096") 7.118 43.717 7.197 4.57 4.68 1.194 1.495 5.873 10.17712 X 3.5 Z 12 3.125 3.375 0.930 50 0.1875 1.396 14 (0.069") 4.745 29.32 4.827 4.584 3.077 0.79 1.485 5.89 6.7510 X 3.5 Z 10 3.125 3.375 0.990 50 0.1875 1.883 12 (0.096") 6.404 28.423 5.607 3.885 4.679 1.196 1.576 4.879 8.42210 X 3.5 Z 10 3.125 3.375 0.930 50 0.1875 1.256 14 (0.069") 4.269 19.093 3.767 3.9 3.077 0.791 1.565 4.896 5.59210 X 2.5 Z 10 2.125 2.375 0.990 50 0.1875 1.673 12 (0.096") 5.690 23.281 4.585 3.73 1.967 0.673 1.084 4.87 4.73310 X 2.5 Z 10 2.125 2.375 0.930 50 0.1875 1.116 14 (0.069") 3.793 15.641 3.08 3.744 1.289 0.445 1.075 4.887 3.1368 X 3.5 Z 8 3.125 3.375 0.990 50 0.1875 1.673 12 (0.096") 5.690 16.895 4.159 3.177 4.679 1.198 1.672 3.886 6.6668 X 3.5 Z 8 3.125 3.375 0.930 50 0.1875 1.116 14 (0.069") 3.793 11.377 2.801 3.194 3.076 0.793 1.661 3.903 4.4348 X 3.5 Z 8 3.125 3.375 0.911 50 0.1875 0.940 16 (0.056") 3.197 9.62 2.368 3.199 2.582 0.666 1.657 3.908 3.7348 X 2.5 Z 8 2.125 2.375 0.990 50 0.1875 1.463 12 (0.096") 4.976 13.621 3.346 3.051 1.966 0.675 1.159 3.877 3.7388 X 2.5 Z 8 2.125 2.375 0.930 50 0.1875 0.976 14 (0.069") 3.317 9.176 2.254 3.067 1.289 0.446 1.149 3.894 2.4818 X 2.5 Z 8 2.125 2.375 0.911 50 0.1875 0.822 16 (0.056") 2.796 7.759 1.906 3.072 1.081 0.375 1.146 3.899 2.0886 X 2.5 Z 6 2.125 2.375 0.930 50 0.1875 0.836 14 (0.069") 2.841 4.662 1.522 2.362 1.288 0.447 1.242 2.903 1.8276 X 2.5 Z 6 2.125 2.375 0.911 50 0.1875 0.704 16 (0.056") 2.395 3.947 1.289 2.367 1.08 0.376 1.238 2.908 1.5394 X 2.5 Z 4 2.125 2.375 0.930 50 0.1875 0.696 14 (0.069") 2.365 1.819 0.887 1.617 1.288 0.449 1.361 1.916 1.1734 X 2.5 Z 4 2.125 2.375 0.911 50 0.1875 0.586 16 (0.056") 1.993 1.544 0.754 1.623 1.08 0.377 1.357 1.921 0.993.5 X 1.5 Z 3.5 1.500 1.500 0.680 50 0.1875 0.534 14 (0.069") 1.815 1.003 0.573 1.371 0.444 0.225 0.912 1.715 0.5043.5 X 1.5 Z 3.5 1.500 1.500 0.661 50 0.1875 0.450 16 (0.056") 1.529 0.853 0.488 1.377 0.371 0.189 0.908 1.721 0.425

Gross Section Properties

DIMENSIONS PROPERTIES OF FULL SECTIONAxis x-x Axis y-y



EAVE STRUTS, ANGLES & CHANNELSEave Struts

• All finishes 5’ to 30’.• Properties are based on ASTM A570/A607 Grade 55 or 60 having a minimum yield strength of 55 ksi.

Angles


Channels


NORMAL GAUGE WEIGHTSize (in) Min. Thickness Lb/Ft

8" x 5" x 2 3/4" 14 ( 0.069") 4.34816 ( 0.056") 3.478

8" x 5" x 5" 14 (0.069") 4.93216 ( 0.056") 3.945


4 3/16" x 2" 14 ( 0.069" 2.04016 ( 0.056") 1.632

6 3/16" x 2" 12 (0.096") 3.58514 (0.069") 2.56116 ( 0.056") 2.048

8 3/16" x 2" 12 (0.096") 4.31414 (0.069") 3.08216 ( 0.056") 2.465

10 3/16"" x 2" 12 (0.096") 5.04414 (0.069") 3.60316 ( 0.056") 2.882


2 1/2" x 2" 14 ( 0.069") 1.17216 ( 0.056") 0.938

3" x 2" 14 ( 0.069") 1.30316 ( 0.056") 1.042

3" x 3" 14 ( 0.069") 1.56316 ( 0.056") 1.250

4" x 2" 14 ( 0.069") 1.56316 ( 0.056") 1.250

6" x 4" 14 ( 0.069") 2.60516 ( 0.056") 2.084



HATS & GIRTS

NORMAL GAUGE WEIGHT LENGTHSize (in) Min. Thickness Lb/Ft

Hat Section 16 ( 0.056") 1.278 20’

# H1Sub-Girt 1" 16 (0.056") 1.123 20’

# SG1 18 (0.045") 0.899 20’Sub-Girt 1/2" 16 (0.056") 0.705 20’

# SG2 18 (0.045") 0.564 20’

1/2” SUB-GIRT# SG2

HAT #H1 1” SUB-GIRT#SG1

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LIGHT GAGE STRUCTURAL INSTITUTE

In an effort to promote efficient, safe use of member companies’products, several manufacturers formed the Light Gage StructuralInstitute (LGSI) in 1989. The LGSI is a nonprofit organizationcomposed of member companies who manufacture light gage cold-formed sections. Those members, while cooperating to advance thestate of the art in the metal component and metal building industries,continue to participate in a robust and highly competitive market fortheir products. LGSI members have adopted, and follow, an AntitrustPolicy that requires all members to avoid any type of conduct that isanti-competitive or violates any federal or state antitrust laws.

Companies that are members of LGSI conform to a set of bylaws andstandards that ensure their compliance with the various policies setforth by the Institute.

Specification advances incorporated in the 1986 and 1996 AmericanIron and Steel Institute Specification provide a framework for reachingthe goals of LGSI member companies. The expanded LGSI manual,"Light Gage Structural Steel Framing System Design Handbook," isthe result of LGSI’s ongoing efforts. It builds on the success of theprevious edition, which was widely used throughout the metalcomponent and metal building industries.

Light Gage Structural InstituteP.O. Box 560746The Colony, TX 75056(972) 625-4560Fax: (972) 370-0968

Escobedo Plant and Headquarters

Professional. Pro-Active. Pro-Customer.

Prolamsa USA, Inc. (U.S. Headquarters)770 South Post Oak Lane

Suite 200, Houston, TX 77056Tel (281) 494-0900Fax (281) 494-0990

[email protected]

Prolamsa (Mexico Headquarters)Carretera a Colombia Km. 5.75

Escobedo, N.L., Mexico C.P. 45560 Tel +52 (81) 8154-0200Fax +52 (81) 8901-1709 www.prolamsa.com

ISO 9002 certified • QS-9000 certified

steel framing

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