Structure Steel Design''''''''s Handbook 2009 part 13 pdf

... of steel bridges can prevent such fatigue crack initiation. To reduce the probability of fracture, the structural steels included in the AASHTO spec- ifications for M270 steels, and ASTM A709 steels ... holes Transverse load Parallel load Bearing-type joints A307 18 11 A325 38 a 19 15* 23† 15‡ 13* 19† 13 11* 16† 11‡ 9* 14† 9‡ A490 47 a 25 19* 29† 19‡ 16* 24† 16‡ 13* 20† 13 11* 17† 11...

Ngày tải lên: 11/08/2014, 20:21

... Data Structural steel designer’s handbook / Roger L. Brockenbrough, editor, Frederick S. Merritt, editor.—3rd ed. p. cm. Includes index. ISBN 0-07-008782-2 1. Building, Iron and steel. 2. Steel, Structural. I. ... Pittsburgh, Penn- sylvania ( SECTION 1 PROPERTIES OF STRUCTURAL STEELS AND EFFECTS OF STEELMAKING AND FABRICATION; SECTION 10 COLD-FORMED STEEL DESIGN ) Cuoco, Daniel A., P....

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... joints for 13. 12 by method of joints 3.65 3.66 by method of sections 3.64 3.65 secondary 13. 2 13. 12 13. 13 wind 13. 13 symmetry requirement for 13. 5 verticals of 3.60 3.61 13. 3 (See ... posts above) web members of 3.60 3.61 13. 3 wind vibrations in 13. 16 working lines in 13. 5 (See also Beams; Framings) Tubing, structural 1 .13 6.60 Tungsten 1.35...

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... external force and reaction on that part of the truss; i.e., all forces acting on the free body must satisfy the three equations of equilibrium [Eq. (3.11)]. For three-dimensional structures, the equations ... For some structures, however, such changes in dimensions may not be negligible. In these cases, the equations of equilibrium should be defined according to the deformed geometry of the...

Ngày tải lên: 11/08/2014, 20:21

... k)(2k Ϫ k Ϫ x )0Յ x Յ k 6EI (4 .134 ) 3 PL 22 ␦ ϭ k(1 Ϫ x)(2x Ϫ x Ϫ k ) k Յ x Յ 1 6EI (4 .135 ) where L ϭ span of simply supported girder E ϭ modulus of elasticity of the steel I ϭ moment of inertia ... ‘‘Cable Structures’’, MIT Press, Cambridge, Mass.; Prem Krishna, Cable- Suspended Roofs, McGraw-Hill, Inc., New York; J. B. Scalzi et al., Design Fundamentals of Cable Roof Structures, U.S....

Ngày tải lên: 11/08/2014, 20:21

... as specified for the higher-strength steel being welded. † Use only low-hydrogen electrodes when welding A36 steel more than 1 in thick for dynamically loaded structures. ‡ When the base-metal temperature ... in 36-ksi steel 50-ksi steel 1 ⁄ 8 ن — 1 ⁄ 4 —— 3 ⁄ 16 — 1 ⁄ 2 0.38 0.28 1 ⁄ 4 1 ⁄ 4 3 ⁄ 4 0.51 0.37 5 ⁄ 16 5 ⁄ 16 Over 3 ⁄ 4 0.64 0.46 * Weld size need not exceed the thickness o...

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... 16 mortar bed Ceramic or quarry tile ( 3 ⁄ 4 -in) on 1-in 23 mortar bed Frame partitions Movable steel partitions 4 Wood or steel studs, 1 ⁄ 2 -in gypsum board 8 each side Wood studs, 2 ϫ 4; unplastered ... C l Heated structure 1.0 Structure kept just above freezing 1.1 Unheated structure 1.2 *These conditions should be representative of those which are likely to exist during the li...

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... of 4.25 in deep) and 90 in wide, are as follows: 1.5 E ϭ 115 ͙3.0 ϭ 2136 ksi c n ϭ E /E ϭ 29,000 / 2136 ϭ 13. 58 sc b/n ϭ 90 /13. 58 ϭ 6.63 in 4 I ϭ 2496 in tr For determination of the effective ... kips—OK n 7.12 SECTION SEVEN FIGURE 7.3 Part of the floor framing for an office building. DESIGN OF BUILDING MEMBERS 7.35 KL ϭ 1.23 (13 Ϫ 3) ϭ 12.3 ft xx KL ϭ 1.0 ϫ 13 ϭ 13 ft yy The W14 ϫ 4...

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... and provide lateral bracing for supporting steel framing. A typical method of attachment is a field-welded connection between the supporting steel and steel embedments in the precast planks. 8.3 ... Many panels can achieve a fire rating when used as part of an approved ceiling assembly. The panels are typically attached to steel framing with cold-formed -steel clips (see Fig. 8.12)....

Ngày tải lên: 11/08/2014, 20:21