Vulcraft_Joist_Catal..

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RECOMMENDED CODE OF STANDARD PRACTICE FOR STEEL JOISTS AND JOIST GIRDERS (b) The following items shall not be included in the estimate 5.5 LOADS but may be quoted and identified as separate The Steel Joist Institute Load Tables are based on uniform items: loading conditions and are valid for use in selecting joist Headers for Longspan Steel Joists, LH-Series. sizes for gravity loads that can be expressed in terms of Headers for Deep Longspan Steel Joists, DLH-Series. “Pounds per lineal foot” (Newtons per Meter) of joist. The Reinforcement in slabs over joists. Steel Joist Institute Weight Tables are based on uniformly spaced panel point loading conditions and are valid for use Centering material and attachments. in selecting Joist Girder sizes for gravity conditions that can Miscellaneous framing between joists for openings at ducts, dumbwaiters, ventilators, skylights, etc. Loose individual or continuous bearing plates and bolts or anchors for such plates. be expressed in kips (Kilo Newton) per panel point on the Joist Girder. When Joist Girders are required to support unequal panel point loads or other special loads, a Joist Girder load diagram shall be provided by the specifying professional on the structural drawings Erection bolts for joist and Joist Girder end anchorage. with these point loads clearly shown. Horizontal bracing in the plane of the top and bottom Loads such as Bulb “T”s, purlins, partitions, heavy pipes, chords from joist to joist or joist to structural framing monorail or tramrail type carrier, etc., running normal to the and walls. length of the joist, or a mechanical unit mounted on the Wood nailers. joist, are concentrated loads. Where concentrated loads Moment plates. 5.3 JOIST LOCATION AND SPACING The maximum joist spacing shall be in accordance with the requirements of the applicable SJI specification and load table of latest adoption. Where sidewalls, wall beams or tie beams are capable of supporting the floor slab or roof deck, the first adjacent joists may be placed one full space from these members. Longspan Steel Joists and Deep Longspan Steel Joists occur, the joist must be selected to carry the full combination of uniform load plus concentrated load. The magnitude and location of these concentrated loads shall be shown on the structural drawings when, in the opinion of the specifying professional, they may require special consideration by the manufacturer. Such joists shall be labeled “Special” on the structural drawings. When Steel Joists are subjected to concentrated and/or varying loads, the specifying professional shall use the following procedure which will allow the: are provided with camber. These joists may have a significant difference in elevation with respect to the adjacent 1. Estimator to price the joists. 2. Joist manufacturer to design the joists properly. structure because of this camber. This difference in elevation should be given consideration when locating the first 3. Owner to obtain the most economical joists. joist adjacent to a sidewall, wall beam or tie beam. Therefore, it is recommended that this joist be located one full space away from these members. Open Web Steel Joists, K-Series, should be no closer than 6 inches (152 mm) to these supporting walls or members. A. B. Sketch the joist(s) on the structural drawings showing all loads to be supported. Determine the maximum moment in the joist and derive the uniform load that will produce that moment. Where partitions occur parallel to joists, there shall be at C. Determine the maximum end reaction and derive the least one typical joist provided under each such partition, uniform load that will produce that reaction. and more than one such joist shall be provided if necessary to safely support the weight of such partition and the D. Using the largest of the 2 uniform loads in B and C select a joist from the load table and add an “SP” after adjacent floor, less the live load, on a strip of floor one foot the joist designation. (305 mm) in width. Where such partitions extend less than one-third (¹⁄₃) of the span from the support, special spacing E. Place the designation under the sketch with the following note: or additional joists shall not be required provided the loads do not exceed those in Section 5.5. When partitions occur normal to the joists, they shall be treated as concentrated “Joist supplier to design joist to support loads as shown above.” loads, and joists shall be investigated as indicated in Section 5.5. 5.4 ACCESSORIES Joist accessories standard with the manufacturer shall comply with applicable Steel Joist Institute specifications of latest adoption and shall be in accordance with Section 2 of this Code. 123
RECOMMENDED CODE OF STANDARD PRACTICE FOR STEEL JOISTS AND JOIST GIRDERS ESTIMATING JOIST SIZE FOR SPECIAL LOADINGS EXAMPLE: U.S. CUSTOMARY UNITS The specifying professional shall compare the equivalent uniform loads W e1 & W e2 to the uniform loads tabulated in the K-Series Load Table. Loads in excess of the load table loads indicate that the specifying professional shall consider using additional joists to reduce the loading or use the LH-Series Joist and make provisions for 5 deep bearing seats. Joist Supplier to design joist to support loads as shown above. R L = 5000 lbs. R R = 5340 lbs. Point of Max. Mom. = Point of Zero Shear(V) = L 1 (dist. from rt. end of Jst) V = Zero = 5340 - (300+500+800) - (180+90)(L 1 ) L 1 = 13.85 ft. M @ L 1 = 5340(13.85) - 300(10.85) - Using W e1 = 356 LB/ft. @ SPAN = 30', and D = 18" Select 18K9 for total load (402) and live load (229) and call it: 18K9SP 124
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TABLE OF CONTENTS **IMPORTANT NOTIC
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VULCRAFT OF NEW YORK, INC. LOCATION
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JOIST DESIGN COMMENTARY FLOOR VIBRA
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LOAD AND RESISTANCE FACTOR DESIGN T
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VULCRAFT K SERIES / GENERAL INFORMA
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STANDARD LOAD TABLE/OPEN WEB STEEL
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STANDARD LOAD TABLE/OPEN WEB STEEL
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KCS JOISTS EXAMPLE 2 OPTION A: Use
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KCS JOISTS LOAD TABLE (SYSTEME INTE
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STANDARD LOAD TABLE IN METRIC UNITS
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OPEN WEB STEEL JOISTS, K-SERIES In
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OPEN WEB STEEL JOISTS, K-SERIES 4.5
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OPEN WEB STEEL JOISTS, K-SERIES NUM
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OPEN WEB STEEL JOISTS, K-SERIES 5.9
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ACCESSORIES AND DETAILS 2.5K SERIES
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ACCESSORIES AND DETAILS K SERIES OP
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ACCESSORIES AND DETAILS BRIDGING RE
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OPEN WEB STEEL JOISTS, K-SERIES TOP
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OPEN WEB STEEL JOISTS, K-SERIES TOP
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ACCESSORIES AND DETAILS LH & DLH SE
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VULCRAFT LH & DLH SERIES / GENERAL
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STANDARD LOAD TABLE/LONG SPAN STEEL
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STANDARD LOAD TABLE DEEP LONGSPAN S
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METRIC LOAD TABLE LONGSPAN STEEL JO
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LONGSPAN AND DEEP LONGSPAN STEEL JO
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VULCRAFT SLH / GENERAL INFORMATION
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ACCESSORIES AND DETAILS SLH SERIES
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VULCRAFT LOAD TABLE SUPER LONGSPAN
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SPECIFICATIONS FOR VULCRAFT SUPER L
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SPECIFICATIONS FOR VULCRAFT SUPER L
Page 74 and 75: SPECIFICATIONS FOR VULCRAFT SUPER L
Page 76 and 77: VULCRAFT JOIST GIRDERS WHAT ARE JOI
Page 78 and 79: JOIST GIRDER NOTES If fixed end mom
Page 80 and 81: MOMENT CONNECTION DETAILS Presented
Page 82 and 83: DESIGN GUIDE WEIGHT TABLE FOR JOIST
Page 90 and 91: Based on an allowable tensile stres
Page 92 and 93: JOIST GIRDERS DESIGN GUIDE WEIGHT T
Page 98 and 99: STANDARD SPECIFICATIONS FOR JOIST G
Page 100 and 101: JOIST GIRDERS For cold-formed secti
Page 102 and 103: JOIST GIRDERS The designed detail o
Page 104 and 105: FIRE-RESISTANCE RATINGS WITH STEEL
Page 106 and 107: FIRE-RESISTANCE RATINGS WITH STEEL
Page 108 and 109: ECONOMICAL JOIST GUIDE Combined K,
Page 120 and 121: RECOMMENDED CODE OF STANDARD PRACTI
Page 128 and 129: PUBLICATIONS Vulcraft (Refer to bac
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