TABLES FOR STEEL CONSTRUCTIONS

1 TABLES FOR STEEL CONSTRUCTIONS BY Prof. Dr. MOUSTAFA KORASHY TABLES FOR STEEL CONSTRUCTIONS BY Prof. Dr. MOUSTAFA KORASHY CHECKED BY Dr. SHERIF IBRAHIM Eng. MOHAMED KORASHY 2001 CONTENTS List of symbols i Introduction ii Hot Rolled Sections 1 Combined Hot Rolled Sections 26 Cold Formed Sections 46 Combined Cold Formed Sections 50 Bolts 55 Sample of Corrugated Sheets

2 66 Accessories 76 Cranes 79 Welding Symbols 86 Miscellaneous 90 M. Korashy iLIST OF SYMBOLS a (mm): Length of long leg for unequal angle. b (mm): Length of short leg for unequal angle, or flange width. b1 (mm): Width of upper flange for unsymmetrical welded I-sections. b2 (mm): Width of Lower flange for symmetrical welded I-sections.

3 C (mm): Height of curved part including flange thickness for channel and I-sections. D (mm): Outer diameter of pipe. d (mm): Height of web for built-up I-sections. dmax. (mm): Maximum diameter of bolt to be used. e (mm): Distance measured from outer surface to neutral axis of section. ex (mm): Distance from bottom surface to X-X axis. ey (mm): Distance from outer surface to Y-Y Axis. h (mm): Height of section. I (cm4): Moment of inertia for symmetrical section. Iu (cm4): Moment of inertia about U-U axis. Iv (cm4): Moment of inertia about V-V axis. Ix (cm4): Moment of inertia about X-X axis. Iy (cm4): Moment of inertia about Y-Y axis. Iy upper flange (cm4): Moment of inertia for upper flange about Y-Y axis. J (cm4): Torsion constant. r (mm, cm): Radius of inner fillet for cold formed section, or Radius of gyration for symmetrical section. r1 (mm): Radius of fillet between web and flange. ru (cm): Radius of gyration about U-U axis.

4 Rv (cm): Radius of gyration about V-V axis. rx (cm): Radius of gyration about X-X axis. ry (cm): Radius of gyration about Y-Y axis. s (mm): Thickness of web, or Thickness of angle leg S (cm3): Elastic modulus of section. Sv (cm3): Elastic modulus of section about V-V axis. Sx (cm3): Elastic modulus of section about X-X axis. Sxb (cm3): Elastic modulus of bottom extreme fibers about X-X axis. Sxt (cm3): Elastic modulus of top extreme fibers about X-X axis. M. Korashy iiSy (cm3): Elastic modulus of section about Y-Y axis. Sy upper flange (cm3): Elastic modulus of upper flange about Y-Y axis. t (mm): Thickness of flange, or Wall thickness. tG (mm): Thickness of gusset plate. u1, u2 (cm): Distance between outer fibers of an angle to V-V axis. Um (m2/m\): Surface area per unit length. Ut (m2/t): Surface area per unit weight. v, v1,&v2 (cm): Distance between outer fibers of an angle to U-U axis. w, w1 (mm): Distance determining bolt hole location relative to the section.

5 Xm (cm): Distance between centroid of a channel and its shear center. iii Introduction The aim of presenting these TABLES is to provide the structural engineers with wide range of information required in designing STEEL structures. Previously, a STEEL designer had to search in many TABLES , handbooks, manuals, ..etc. to collect the necessary information needed to complete his/her design. These TABLES are divided into nine chapters. Chapter one provides the geometrical properties of common hot rolled sections which includes the following: Equal and unequal angles: primarily used in trusses for resisting axial forces. Channels (UPN): used as truss members and purlins or side girts. I-sections (IPN, IPE, HEA, HEB, HEM): IPN section is suitable for beam subjected to bending moment about its major axis. IPE section used mainly for beams or beam column. HEA, HEB, and HEM sections are primarily used for members subjected to bi-moments or for heavy beam-columns.

6 T-sections are produced by cutting I-sections into two halves. They are used as brackets, truss members or light beams. iv Pipes and hollow sections: primarily used as truss members in welded trusses. Hollow square and rectangular sections, sometimes used as roof purlins or light beam-columns. Flat plates used in connections as head plates, gusset plates or it can be utilized in composing built-up section. Rails: used mainly in tracks of moving structures such as crane bridge. In unprecedented presentation of section properties in the Egyptian practice, Chapter two introduces the geometric properties for combined hot rolled sections and built up welded sections. This chapter provides the properties for the following combined sections: Two equal or unequal angles back to back: Used mainly as lower or upper chord of trusses, or bracing members. Two channels back to back: Used mainly as lower or upper chord in heavy trusses.

7 Two channels toe to toe: Used as beam-column especially when the buckling lengths in-plane and out of plane are nearly equal. v IPE and UPN: This section is used primarily as section for crane girders. The UPN section is provided at the top flange where the lateral shock of the crane bridge is applied. Symmetrical welded I-Section: This section consists of three parts welded to form symmetrical I-sections. It is used mainly for beams or beam-columns. Unsymmetrical welded I-sections: This section is formed in away to make the upper flange approximately twice the lower flange. Thus it is suitable for crane girders where the lateral shock is applied at the upper flange. The section might also be used for composite construction when the upper and lower flanges are switched. Chapter three introduces the geometrical properties of cold-formed STEEL sections, these sections includes: Channels (stiffened and unstiffened) and Z sections (with straight lips and with inclined lips): These sections are used mainly for roof purlins and side girts.

8 Sometimes, they can be used in light trusses as web members. vi Chapter four provides the geometrical properties for combined cold-formed sections. These sections includes: Two channels back to back: Used as lower or upper chord in light trusses or in bracing members. Two channels toe to toe: Used in light beam columns or as eave struts I bracing system. Chapter five provides complete information about the size, weight, and grip length of ordinary and high strength bolts. It also provides the dimension and weight of washers and nuts used for each type of bolts. This chapter also includes the dimension and the weight of anchor bolts with various configurations. Chapter six provides the geometrical properties of sample of corrugated sheets whether they are single layer, sandwich panels, or metal decking STEEL sheets. In this chapter the allowable spacing between purlins is also provided based on the strength and serviceability criteria.

9 Chapter seven includes samples of the wheel loads of crane bridges covering the following ranges of crane capacities: Light cranes with capacity range from to ton. Normal cranes with capacity range from to 25 ton. Heavy cranes with capacity range from 25 to 63 ton. vii Chapter eight provides the common symbols used in welding CONSTRUCTIONS . Chapter nine includes various data covering the following areas: Conversion TABLES used to convert engineering units from imperial to SI or metric systems and vice versa. Dimensions of aircraft with various types to assist in choosing the configuration of aircraft hangar. Geometrical properties of common shapes in engineering practice. 1 HOT ROLLED SECTIONS EQUAL ANGLES HALF UNEQUAL ANGLE HALF CHANNELS ( )

10 HALF PIPES HOLLOW SQUARE SECTIONS HOLLOW RECTANGULAR SECTIONS PLATES RAILS asevu1u2 ISrIuruIvSvrvw1w2dmaxUmUtmmmmkg/m`cm2cmc mcmcmcm4cm3cmcm4cmcm4cm3cmmmmmmmx10-2 m2/m\m2 u-uAxis X-X and Y-YDetailsSurface AreaWeight available for this angle size55 Area 654560 Size303540W2W1daasEQUAL `cm2cmcmcmcmcm4cm3cmcm4cmcm4cm3cmmmmmmmx 10-2 m2/m\m2 available for this angle Area DetailsSurface AreaDimensionsAxis X-X and Y-YAxis u-uAxis `cm2cmcmcmcmcm4cm3cmcm4cmcm4cm3cmmmmmmmx 10-2 m2/m\m2 472 750 194 5090 540 857 223 5090 605 959 251 5090 638 262 55105 723 298 55105 845 347 60110 898 370 60110 949 391 60110 1050 1670 438 60110 1150 109 1820 477 60110 1100 1750 453 60120